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Journal articles on the topic 'Accelerometer sensors'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Xie, Yilin, Song Zhang, Xiaolin Meng, Dinh Tung Nguyen, George Ye, and Haiyang Li. "An Innovative Sensor Integrated with GNSS and Accelerometer for Bridge Health Monitoring." Remote Sensing 16, no. 4 (2024): 607. http://dx.doi.org/10.3390/rs16040607.

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This paper presents an innovative integrated sensor that combines GNSS and a low-cost accelerometer for bridge health monitoring. GNSS and accelerometers are both significant and effective sensors for structural monitoring, but they each have limitations. The sampling rate of GNSS data is relatively low, making it challenging to capture high-frequency vibrations, while accelerometers struggle with low-frequency signals and are susceptible to environmental changes. Additionally, GNSS receivers and accelerometers are often installed separately, leading to challenges in data fusion processing due

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Song, Xiaoxiao, Huafeng Liu, Yanyan Fang, et al. "An Integrated Gold-Film Temperature Sensor for In Situ Temperature Measurement of a High-Precision MEMS Accelerometer." Sensors 20, no. 13 (2020): 3652. http://dx.doi.org/10.3390/s20133652.

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Temperature sensors are one of the most important types of sensors, and are employed in many applications, including consumer electronics, automobiles and environmental monitoring. Due to the need to simultaneously measure temperature and other physical quantities, it is often desirable to integrate temperature sensors with other physical sensors, including accelerometers. In this study, we introduce an integrated gold-film resistor-type temperature sensor for in situ temperature measurement of a high-precision MEMS accelerometer. Gold was chosen as the material of the temperature sensor, for

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Manuel, Yoses, Kartiko Ardi Widodo, and Bima Romadhon Palevi. "Comparative Analysis Of Accelerometer Sensor And Piezoelectric Sensor Capabilities In The Early Warning System Earthquake Disaster." Journal of Electrical Engineering and Computer (JEECOM) 7, no. 1 (2025): 59–68. https://doi.org/10.33650/jeecom.v7i1.10847.

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An earthquake is a vibration or shock caused by a sudden release of energy from within the earth, which produces seismic waves. The Indonesian region is currently vulnerable to volcanic and tectonic earthquakes due to the Pacific Ring of Fire, where the Indo-Australian tectonic plate collides with the Pacific tectonic plate. So this study aims to conduct a comparative analysis between earthquake disaster early warning systems that use sensors Accelerometers and Piezoelectric sensors. The two types of sensors used are an Accelerometer IMU 9 DOF to measure the acceleration of ground motion and a

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Fidali, Marek, Damian Augustyn, Jakub Ochmann, and Wojciech Uchman. "Evaluation of the Diagnostic Sensitivity of Digital Vibration Sensors Based on Capacitive MEMS Accelerometers." Sensors 24, no. 14 (2024): 4463. http://dx.doi.org/10.3390/s24144463.

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In recent years, there has been an increasing use of digital vibration sensors that are based on capacitive MEMS accelerometers for machine vibration monitoring and diagnostics. These sensors simplify the design of monitoring and diagnostic systems, thus reducing implementation costs. However, it is important to understand how effective these digital sensors are in detecting rolling bearing faults. This article describes a method for determining the diagnostic sensitivity of diagnostic parameters provided by commercially available vibration sensors based on MEMS accelerometers. Experimental te

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Qian, Leping, and Decai Li. "Use of Magnetic Fluid in Accelerometers." Journal of Sensors 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/375623.

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Magnetic fluid accelerometer is designed based on the special physical properties of magnetic fluid. Compared with the conventional acceleration sensors, magnetic fluid accelerometer has stronger shock resistance capability, higher sensitivity, lower energy consumption, and better performance in low frequency response. It satisfies the growing requirements of acceleration sensors. In this paper, the dynamic model and the theory of magnetic fluid accelerometers were presented. The structure characteristics of typical magnetic fluid accelerometers were investigated, and the development trend of

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Fridolfsson, Jonatan, Daniel Arvidsson, and Stefan Grau. "Measurement of Physical Activity by Shoe-Based Accelerometers—Calibration and Free-Living Validation." Sensors 21, no. 7 (2021): 2333. http://dx.doi.org/10.3390/s21072333.

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There is conflicting evidence regarding the health implications of high occupational physical activity (PA). Shoe-based accelerometers could provide a feasible solution for PA measurement in workplace settings. This study aimed to develop calibration models for estimation of energy expenditure (EE) from shoe-based accelerometers, validate the performance in a workplace setting and compare it to the most commonly used accelerometer positions. Models for EE estimation were calibrated in a laboratory setting for the shoe, hip, thigh and wrist worn accelerometers. These models were validated in a

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7

Khan, Muhammad Sohaib, Hassan Elahi, Muhammad Mubasher Saleem, Masood Ur Rehman, Muhammad Abdullah Tayyab, and Mohsin Islam Tiwana. "Design of a novel tri-axis ZnO nanowires based piezoelectric accelerometer." PLOS ONE 20, no. 3 (2025): e0318069. https://doi.org/10.1371/journal.pone.0318069.

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Micro-Electromechanical Systems (MEMS) are pivotal in modern technology, serving as components like accelerometers, gyroscopes, and pressure sensors in various applications. MEMS accelerometers are key components used for measuring motion and vibrations in a wide range of systems. This paper presents the proposed design of a ZnO nanowires-based piezoelectric accelerometer. Owing to the ZnO nanowires’ unique piezoelectric properties, the accelerometer can measure acceleration in three axes. A mathematical model is derived to analyze the behavior of nanowires under applied acceleration. Finite E

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Meng, Long, Anjing Zhang, Chen Chen, et al. "Exploration of Human Activity Recognition Using a Single Sensor for Stroke Survivors and Able-Bodied People." Sensors 21, no. 3 (2021): 799. http://dx.doi.org/10.3390/s21030799.

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Commonly used sensors like accelerometers, gyroscopes, surface electromyography sensors, etc., which provide a convenient and practical solution for human activity recognition (HAR), have gained extensive attention. However, which kind of sensor can provide adequate information in achieving a satisfactory performance, or whether the position of a single sensor would play a significant effect on the performance in HAR are sparsely studied. In this paper, a comparative study to fully investigate the performance of the aforementioned sensors for classifying four activities (walking, tooth brushin

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9

Nishihara, Kazue. "Fundamental Study on Hand Waving Sensors." Journal of Robotics and Mechatronics 2, no. 5 (1990): 325–34. http://dx.doi.org/10.20965/jrm.1990.p0325.

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In order to develop a dynamic man-machine interface which measures angular motions of multi-link mechanisms, a uniaxial hand wave sensor is experimented with and triaxial hand wave sensors are simulated numerically. It was confirmed that a uniaxial hand wave sensor composed of a pair of uniaxially located accelerometers directly obtains exact angular acceleration by subtracting each acceleration signal. A triaxial hand wave sensor by a six (i.e. three pairs) accelerometer method, however, contains duplex angular velocities influenced by other axes in addition to the exact angular acceleration,

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10

Ігор Валерійович Балабанов and Тетяна Василівна Балабанова. "INVESTIGATION OF CHARACTERISTICS OF THE PLANAR ELASTIC SUSPENSION IN THE DIRECT ACTION AXIAL MICROMECHANICAL ACCELEROMETERS." MECHANICS OF GYROSCOPIC SYSTEMS, no. 27 (October 6, 2014): 68–77. http://dx.doi.org/10.20535/0203-377127201438037.

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Axial accelerometers with a planar silicon suspension and capacitive sensor for inertial mass displacement are one of the most promising navigational sensors at the present time. On the other hand improvement of the precision characteristics remains a primary problem to be investigated for micromechanical sensors.The main requirement for this type of sensors is the constancy of the operating compliance throughout the whole metrical range of the accelerometer. Furthermore, the operating compliance has to be small enough to allow the measurement of the upper limit of acceleration.In the present

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11

Zhai, Yanxin, Haiwang Li, Zhi Tao, et al. "Simulation Analysis and Fabrication of a Silicon Carbide-Based Piezoresistive Accelerometer." Journal of Physics: Conference Series 2246, no. 1 (2022): 012007. http://dx.doi.org/10.1088/1742-6596/2246/1/012007.

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Abstract This paper proposes a Micro Electro Mechanical Systems piezoresistive accelerometer based on a whole SiC substrate. Compared with Si-based sensors, SiC-based sensors have stronger mechanical advantages and unique advantages for applications in ultra-high temperature environments. The characteristics of the accelerometer are designed and numerically simulated, and the accelerometer is evaluated in terms of stress load and working frequency band. An innovative design is carried out to eliminate the stress concentration phenomenon in the corner area of the sensor, which guarantees the wo

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12

Veluthedath Shajihan, Shaik Althaf, Raymond Chow, Kirill Mechitov, Yuguang Fu, Tu Hoang, and Billie F. Spencer. "Development of Synchronized High-Sensitivity Wireless Accelerometer for Structural Health Monitoring." Sensors 20, no. 15 (2020): 4169. http://dx.doi.org/10.3390/s20154169.

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The use of digital accelerometers featuring high sensitivity and low noise levels in wireless smart sensors (WSSs) is becoming increasingly common for structural health monitoring (SHM) applications. Improvements in the design of Micro Electro-Mechanical System (MEMS) based digital accelerometers allow for high resolution sensing required for SHM with low power consumption suitable for WSSs. However, new approaches are needed to synchronize data from these sensors. Data synchronization is essential in wireless smart sensor networks (WSSNs) for accurate condition assessment of structures and re

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13

Ghazali, Mohamad Hazwan Mohd, and Wan Rahiman. "An Investigation of the Reliability of Different Types of Sensors in the Real-Time Vibration-Based Anomaly Inspection in Drone." Sensors 22, no. 16 (2022): 6015. http://dx.doi.org/10.3390/s22166015.

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Early drone anomaly inspection is vital to ensure the drone’s safety and effectiveness. This process is often overlooked, especially by amateur drone pilots; however, some faulty conditions are difficult to notice by the naked eye or discover, even though the drone inspection process has been conducted; therefore, a real-time early drone inspection approach based on vibration data is proposed in this study. Firstly, the reliability of several microelectromechanical systems (MEMS) sensors, namely the ADXL335 accelerometer, ADXL 345 accelerometer, ADXL377 accelerometer, and SW420 vibration senso

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Saito, Ayuko, Natsuki Sai, Kazutoshi Kurotaki, Akira Komatsu, Shinichiro Morichi, and Satoru Kizawa. "Gait Analysis Using Walking-Generated Acceleration Obtained from Two Sensors Attached to the Lower Legs." Sensors 25, no. 14 (2025): 4527. https://doi.org/10.3390/s25144527.

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Gait evaluation approaches using small, lightweight inertial sensors have recently been developed, offering improvements in terms of both portability and usability. However, accelerometer outputs include both the acceleration that is generated by human motion and gravitational acceleration, which changes along with the posture of the body part to which the sensor is attached. This study presents a gait analysis method that uses the gravitational, centrifugal, tangential, and translational accelerations obtained from sensors attached to the lower legs. In this method, each sensor pose is sequen

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15

Pimentel, Ricky, Cortney Armitano-Lago, Ryan MacPherson, et al. "Effect of sensor number and location on accelerometry-based vertical ground reaction force estimation during walking." PLOS Digital Health 3, no. 5 (2024): e0000343. http://dx.doi.org/10.1371/journal.pdig.0000343.

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Knee osteoarthritis is a major cause of global disability and is a major cost for the healthcare system. Lower extremity loading is a determinant of knee osteoarthritis onset and progression; however, technology that assists rehabilitative clinicians in optimizing key metrics of lower extremity loading is significantly limited. The peak vertical component of the ground reaction force (vGRF) in the first 50% of stance is highly associated with biological and patient-reported outcomes linked to knee osteoarthritis symptoms. Monitoring and maintaining typical vGRF profiles may support healthy gai

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16

Pesti, Richárd, Dominik Csík, Péter Sarcevic, and Ákos Odry. "Measurement System for the Calibration of Accelerometer Arrays." Analecta Technica Szegedinensia 18, no. 2 (2024): 30–37. http://dx.doi.org/10.14232/analecta.2024.2.30-37.

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This paper addresses accelerometer array calibration, focusing on determining the errors between multiple sensors. Micro-electromechanical system (MEMS) based triaxial accelerometers, key components of Inertial Measurement Units (IMUs), are used in localization, robotics, and navigation systems. The requirements of these applications necessitate low-cost sensors, which makes MEMS IMUs a reasonable choice. However, these low-cost IMUs are significantly affected by systematic (i.e., bias, misalignment, scale-factor) and random errors. Achieving reliable sensor output depends on the precision of

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17

F. Hraniak, Valerii, Vasyl Kukharchuk, Volodymyr Kucheruk, Samoil Katsyv, D. Zh Karabekova, and A. K. Khassenov. "Mathematical model of capacitance micromechanical accelerometer in static and dynamic operating modes." Bulletin of the Karaganda University. "Physics" Series 98, no. 2 (2020): 60–67. http://dx.doi.org/10.31489/2020ph2/60-67.

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Monitoring and early diagnosis systems, on which the protection function of both hydroturbines and auxiliary power equipment rely, are becoming increasingly relevant. One of the most promising methods of technical control and diagnostics of hydo units is the analysis of their vibro-acoustic characteristics. But a significant technical problem that arises in the construction of such systems is the limited use of known sensors of vibration velocity and vibration displacement due to the fact that the rotary speed of hydro units is usually below the lower limit of operation of sensors of this type

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18

Cai, Pengcheng, Xingyin Xiong, Kunfeng Wang, Jiawei Wang, and Xudong Zou. "An Improved Difference Temperature Compensation Method for MEMS Resonant Accelerometers." Micromachines 12, no. 9 (2021): 1022. http://dx.doi.org/10.3390/mi12091022.

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Resonant accelerometers are promising because of their wide dynamic range and long-term stability. With quasi-digital frequency output, the outputs of resonant accelerometers are less vulnerable to the noise from circuits and ambience. Differential structure is usually adopted in a resonant accelerometer to achieve higher sensitivity to acceleration and to reduce common noise at the same time. Ideally, a resonant accelerometer is only sensitive to external acceleration. However, temperature has a great impact on resonant accelerometers, causing unexcepted frequency drift. In order to cancel ou

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19

Aswin, Fajar, and Zaldy Sirwansyah Suzen. "IMPLEMENTASI SENSOR MEMS AKSELEROMETER SEBAGAI ALAT PENGUKUR GETARAN PADA TURBIN ANGIN." Jurnal Poli-Teknologi 18, no. 3 (2019): 225–32. http://dx.doi.org/10.32722/pt.v18i3.2340.

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Many techniques are available in the market to measure and analyze vibrations caused by rotating machines and the structure of the machine itself, but require expensive resources to identify the problem of damage. Generally these expensive equipment use conventional sensors such as eddy-current sensors, swing coil velocity sensors and piezoelectric transducer sensors to measure vibration. The implementation of a vibration measuring device in the form of an accelerometer sensor with a type of Micro Electro Mechanical System (MEMS) and a signal processing unit (Arduino Mega microcontroller) is u

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20

Eniola, S. Adewumi, S. Enamamu Timibloudi, and A. Dahiru Aliyu. "Performance Evaluation of Mobile Sensor for Context Awareness User Authentication." Latin-American Journal of Computing 9, no. 2 (2022): 52–65. https://doi.org/10.5281/zenodo.6763156.

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With the increase of smart devices and their capacities, their use for different services have also increased. As much as this is an advantage, it has posed additional risks because of the confidential information stored on them. This has increased the need for additional security on the smart devices. Most of the methods used for user authentication pose certain drawbacks that are either easy to circumvent or cumbersome to use. As a result, multi-level means of authentication is needed to improve the security of mobile devices. Sensors are playing a vital role in the mobile ecosystem to enhan

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21

Sanjuan, Jose, Alexander Sinyukov, Mohanad F. Warrayat, and Felipe Guzman. "Gyro-Free Inertial Navigation Systems Based on Linear Opto-Mechanical Accelerometers." Sensors 23, no. 8 (2023): 4093. http://dx.doi.org/10.3390/s23084093.

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High-sensitivity uniaxial opto-mechanical accelerometers provide very accurate linear acceleration measurements. In addition, an array of at least six accelerometers allows the estimation of linear and angular accelerations and becomes a gyro-free inertial navigation system. In this paper, we analyze the performance of such systems considering opto-mechanical accelerometers with different sensitivities and bandwidths. In the six-accelerometer configuration adopted here, the angular acceleration is estimated using a linear combination of accelerometers’ read-outs. The linear acceleration is est

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Grigorie, T. L., and R. M. Botez. "A new method to reduce the noise of the miniaturised inertial sensors disposed in redundant linear configurations." Aeronautical Journal 117, no. 1188 (2013): 111–32. http://dx.doi.org/10.1017/s0001924000007909.

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Abstract This paper presents a new adaptive algorithm for the statistical filtering of miniaturised inertial sensor noise. The algorithm uses the minimum variance method to perform a best estimate calculation of the accelerations or angular speeds on each of the three axes of an Inertial Measurement Unit (IMU) by using the information from some accelerometers and gyros arrays placed along the IMU axes. Also, the proposed algorithm allows the reduction of both components of the sensors’ noise (long term and short term) by using redundant linear configurations for the sensors dispositions. A num

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23

Bateman, Vesta, and Philip Thacker. "Certification of 200,000 g Shock Calibration Technique for Sensors." Journal of the IEST 45, no. 1 (2002): 121–28. http://dx.doi.org/10.17764/jiet.45.1.34728u542k334619.

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A split Hopkinson bar technique has been developed to evaluate the performance of accelerometers that measure large amplitude, up to 200,000 g, mechanical shock pulses. An evaluation of this technique has been conducted in the Mechanical Shock Laboratory at Sandia National Laboratories (SNL) for use as an accelerometer calibration technique. Results of this evaluation are presented and include a comparison with a NIST calibrated reference accelerometer. The certification of split Hopkinson flyaway technique by the SNL Primary Standards Laboratory is presented in this paper.

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Irmak, Rafet, Gökan Bicer, and Ahsen Irmak. "Design of a Single Mechanical Joint for Multitype Angular Position Sensors Used in Gait Analysis." Orthopaedic Journal of Sports Medicine 2, no. 11_suppl3 (2014): 2325967114S0028. http://dx.doi.org/10.1177/2325967114s00288.

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Objectives: Gait and motion analysis are important tools in assessment of athletic performance and clinical evaluation. Wearable sensor based solutions have advantages over video based systems by their prices and ease. Resistive, magnetic or optic Encoders, flexible resistors and accelerometers are common sensor types unsed in gait analysis systems used in rehabilitation. All these sensors have similar mounting and electronic instrumentation approach but all have separate mechanical joint design. The purpose of this study is to develop a single mechanical joint for multitype angular position s

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Korobiichuk, Igor. "Analysis of Errors of Piezoelectric Sensors used in Weapon Stabilizers." Metrology and Measurement Systems 24, no. 1 (2017): 91–100. http://dx.doi.org/10.1515/mms-2017-0001.

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Abstract Effectiveness of operation of a weapon stabilization system is largely dependent on the choice of a sensor, i.e. an accelerometer. The paper identifies and examines fundamental errors of piezoelectric accelerometers and offers measures for their reduction. Errors of a weapon stabilizer piezoelectric sensor have been calculated. The instrumental measurement error does not exceed 0.1 × 10−5 m/s2. The errors caused by the method of attachment to the base, different noise sources and zero point drift can be mitigated by the design features of piezoelectric sensors used in weapon stabilize

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Szermer, Michał, Piotr Zając, Piotr Amrozik, et al. "A Capacitive 3-Axis MEMS Accelerometer for Medipost: A Portable System Dedicated to Monitoring Imbalance Disorders." Sensors 21, no. 10 (2021): 3564. http://dx.doi.org/10.3390/s21103564.

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The constant development and miniaturization of MEMS sensors invariably provides new possibilities for their use in health-related and medical applications. The application of MEMS devices in posturographic systems allows faster diagnosis and significantly facilitates the work of medical staff. MEMS accelerometers constitute a vital part of such systems, particularly those intended for monitoring patients with imbalance disorders. The correct design of such sensors is crucial for gathering data about patient movement and ensuring the good overall performance of the entire system. This paper pr

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Vavrinský, Erik, Daniela Moskal'vá, Martin Darříček, et al. "Application of Acceleration Sensors in Physiological Experiments." Journal of Electrical Engineering 65, no. 5 (2014): 304–8. http://dx.doi.org/10.2478/jee-2014-0049.

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Abstract This paper illustrates a promising application of an accelerometer sensor in physiological research, we demonstrated use of accelerometers for monitoring the standard proband physical activity (PA) and also in special applications like respiration and mechanical heart activity, the so-called seismocardiography (SCG) monitoring, physiological activation monitoring and mechanomyography (MMG)

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Shi, Xin, Zheng Zheng Guan, and Hua Wu. "Silicon Resonant Micro Pressure Sensor and Micro Resonant Accelerometer." Advanced Materials Research 550-553 (July 2012): 3376–79. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.3376.

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Silicon micro resonant pressure sensor and accelerometer are kinds of new gauging instruments. Both the silicon micro resonant pressure sensor and accelerometer have the particular advantages and become the key development direction of micro sensors. The introduction of silicon micro resonant pressure sensor is carried out first in this paper. The work theory and development tendency of resonant pressure sensor are discussed in detail. And then, the silicon resonant accelerometer is studied. The research development statuses of resonant beam accelerometer and development tendency are taken to

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Chen, Lingjia. "Overview of Micro-Mechanical Accelerometer Research Based on ΣΔ Modulation TechnologyOverview of Micro-Mechanical Accelerometer Research Based on ΣΔ Modulation Technology". International Journal of Engineering and Technology 16, № 1 (2024): 6–10. http://dx.doi.org/10.7763/ijet.2024.v16.1246.

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This paper provides an overview of the current development status of acceleration sensors from three aspects: development methods, working principles, and sigma-delta (ΣΔ) modulation technology. The performance characteristics of the most representative EM-ΣΔM inertial sensor system are introduced. The optimized methodology for improving the performance and accuracy of capacitive Micro-Electro-Mechanical Systems (MEMS) accelerometers while reducing mechanical and electronic noise is given. Finally, by comparing with advanced foreign technologies, the challenges and development directions faced

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Wang, Xin, Jie Yan, Dongzhu Feng, Yonghua Fan, and Dongsheng Yang. "Flight motion tracking with new configuration of hybrid inertial sensors." Engineering Computations 37, no. 5 (2020): 1683–701. http://dx.doi.org/10.1108/ec-11-2018-0542.

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Purpose This paper aims to describe a novel hybrid inertial measurement unit (IMU) for motion capturing via a new configuration of strategically distributed inertial sensors, and a calibration approach for the accelerometer and gyroscope sensors mounted in a flight vehicle motion tracker built on the inertial navigation system. Design/methodology/approach The hybrid-IMU is designed with five accelerometers and one auxiliary gyroscope instead of the accelerometer and gyroscope triads in the conventional IMU. Findings Simulation studies for tracking with both attitude angles and translational mo

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Dionisio, Rogerio, Pedro Torres, Armando Ramalho, and Ricardo Ferreira. "Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study." Journal of Sensor and Actuator Networks 10, no. 1 (2021): 22. http://dx.doi.org/10.3390/jsan10010022.

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This experimental study focuses on the comparison between two different sensors for vibration signals: a magnetoresistive sensor and an accelerometer as a calibrated reference. The vibrations are collected from a variable speed inductor motor setup, coupled to a ball bearing load with adjustable misalignments. To evaluate the performance of the magnetoresistive sensor against the accelerometer, several vibration measurements are performed in three different axes: axial, horizontal and vertical. Vibration velocity measurements from both sensors were collected and analyzed based on spectral deco

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Duchi, Massimo, and Edoardo Ida’. "Total Least Squares In-Field Identification for MEMS-Based Inertial Measurement Units." Robotics 13, no. 11 (2024): 156. http://dx.doi.org/10.3390/robotics13110156.

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Inertial Measurement Units are widely used in various applications and, hardware-wise, they primarily consist of a tri-axial accelerometer and a tri-axial gyroscope. For low-end commercial employments, the low cost of the device is crucial: this makes MEMS-based sensors a popular choice in this context. However, MEMS-based transducers are prone to significant, non-uniform and environmental-condition-dependent systematic errors, that require frequent re-calibration to be eliminated. To this end, identification methods that can be performed in-field by non-expert users, without the need for high

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Churaman, Wayne A., Luke J. Currano, Danny Gee, and Eugene Zakar. "Three-Axis MEMS Threshold Accelerometer Switch for Enhanced Power Conservation of MEMS Sensors." Advances in Science and Technology 54 (September 2008): 384–89. http://dx.doi.org/10.4028/www.scientific.net/ast.54.384.

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A no-power 3-axis bidirectional MEMS threshold accelerometer is presented in this paper. Threshold accelerometers of 25g, 50g, and 100g were designed and fabricated on a single 3mm chip. The design is based on a conductive spring-mass system made of Au metal layers that close a switch between two metal contacts when the designed threshold is exceeded. We present the MEMS threshold accelerometer switch fabrication process and provide an analytical and experimental framework for the device performance

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En, De, Ning Bo Zhang, Jie Yu Feng, Xiao Bin Wang, and Ning Ning Wang. "Research of Micro-Accelerometer Based on MOEMS." Applied Mechanics and Materials 143-144 (December 2011): 553–57. http://dx.doi.org/10.4028/www.scientific.net/amm.143-144.553.

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Micro-Opto-Electro-Mechanical System (MOEMS) has the advantages of small size, light weight, little energy consumption, high reliability, high-volume production and so on. Micro-sensor is a new generation of sensor being developed, improved and expanded, and it will have a huge effect on the measurement area of still adopted traditional sensors. The characteristics and MOEMS manufacturing technologies are introduced. The concept and advantages of micro-sensors are described. The working principle of micro-accelerometer is analyzed.Micro-accelerometer will play an increasingly key role in the n

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Schwenck, Adrian, Thomas Guenther, and André Zimmermann. "Characterization and Benchmark of a Novel Capacitive and Fluidic Inclination Sensor." Sensors 21, no. 23 (2021): 8030. http://dx.doi.org/10.3390/s21238030.

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In this paper, a fluidic capacitive inclination sensor is presented and compared to three types of silicon-based microelectromechanical system (MEMS) accelerometers. MEMS accelerometers are commonly used for tilt measurement. They can only be manufactured by large companies with clean-room technology due to the high requirements during assembly. In contrast, the fluidic sensor can be produced by small- and medium-sized enterprises (SMEs) as well, since only surface mount technologies (SMT) are required. Three different variants of the fluidic sensor were investigated. Two variants using stacke

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Zabihi, Mehdi, Bhawya, Parikshit Pandya, et al. "Inertial and Flexible Resistive Sensor Data Fusion for Wearable Breath Recognition." Applied Sciences 14, no. 7 (2024): 2842. http://dx.doi.org/10.3390/app14072842.

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This paper proposes a novel data fusion technique for a wearable multi-sensory patch that integrates an accelerometer and a flexible resistive pressure sensor to accurately capture breathing patterns. It utilizes an accelerometer to detect breathing-related diaphragmatic motion and other body movements, and a flex sensor for muscle stretch detection. The proposed sensor data fusion technique combines inertial and pressure sensors to eliminate nonbreathing body motion-related artifacts, ensuring that the filtered signal exclusively conveys information pertaining to breathing. The fusion techniq

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Cho, Yohan, Yub Je, and Weui-Bong Jeong. "A miniaturized acoustic vector sensor with PIN-PMN-PT single crystal cantilever beam accelerometers." Acta Acustica 4, no. 5 (2020): 17. http://dx.doi.org/10.1051/aacus/2020017.

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Directional sound detection using vector sensors rather than large hydrophone arrays is highly advantageous for target detection in SONAR. However, developing highly sensitive and compact vector sensors for use in a system whose size is limited has been a challenging issue. In this paper, we describe a miniaturized acoustic vector sensor with piezoelectric single crystal accelerometers for the application in towed line arrays. A mass-loaded cantilever beam accelerometer with a [011] poled PIN-PMN-PT single crystal shows a better signal-to-noise ratio compared to accelerometers with other piezo

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T Kavitha, Nama Aakash, Karamtoth Kishore Kumar, and Abbavaram Rushikesh Reddy. "POSTURE DETECTION AND ALERT SYSTEM USING FLEX AND ACCELEROMETER SENSORS." international journal of engineering technology and management sciences 7, no. 3 (2023): 505–9. http://dx.doi.org/10.46647/ijetms.2023.v07i03.71.

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The main objective is to detect thecorrect or incorrect posture by detecting the changes occurring in human spinal cord movement using sensors i.e., flex sensor. Device also contains the accelerometer sensorto detect the angle of the neck movement of the user. The posture is analysed from the data sent from both the sensors and if bad posture is detected then the buzzer sensor in the device alerts the user to correct the posture. The device is made up of a flex sensor, accelerometer module, buzzer, and a microcontroller. The flex sensor is used todetect the bending movement of the spinal cord,

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García, Jesús A., Evangelina Lara, and Leocundo Aguilar. "A Low-Cost Calibration Method for Low-Cost MEMS Accelerometers Based on 3D Printing." Sensors 20, no. 22 (2020): 6454. http://dx.doi.org/10.3390/s20226454.

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A ubiquitous sensor in embedded systems is the accelerometer, as it enables a range of applications. However, accelerometers experience nonlinearities in their outputs caused by error terms and axes misalignment. These errors are a major concern because, in applications such as navigations systems, they accumulate over time, degrading the position accuracy. Through a calibration procedure, the errors can be modeled and compensated. Many methods have been proposed; however, they require sophisticated equipment available only in laboratories, which makes them complex and expensive. In this artic

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Alinia, Parastoo, Ali Samadani, Mladen Milosevic, Hassan Ghasemzadeh, and Saman Parvaneh. "Pervasive Lying Posture Tracking." Sensors 20, no. 20 (2020): 5953. http://dx.doi.org/10.3390/s20205953.

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Automated lying-posture tracking is important in preventing bed-related disorders, such as pressure injuries, sleep apnea, and lower-back pain. Prior research studied in-bed lying posture tracking using sensors of different modalities (e.g., accelerometer and pressure sensors). However, there remain significant gaps in research regarding how to design efficient in-bed lying posture tracking systems. These gaps can be articulated through several research questions, as follows. First, can we design a single-sensor, pervasive, and inexpensive system that can accurately detect lying postures? Seco

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Costa Antunes, Paulo, João Miguel Dias, Humberto Varum, and Paulo André. "Dynamic structural health monitoring of a civil engineering structure with a POF accelerometer." Sensor Review 34, no. 1 (2014): 36–41. http://dx.doi.org/10.1108/sr-04-2013-656.

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Purpose – In this work, the paper aims to demonstrate the feasibility of plastic optical fiber (POF) based accelerometers for the structural health monitoring (SHM) of civil engineering structures based on measurements of their dynamic response, namely to estimate natural frequencies. These sensors use POFs, combining the advantages of the optical technology with the robustness of this particular kind of fiber. The POF sensor output is directly compared with the signal from an electrical sensor, demonstrating the potential use of such sensors in structural monitoring applications. Design/metho

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Huang, Emily J., Kebin Yan, and Jukka-Pekka Onnela. "Smartphone-Based Activity Recognition Using Multistream Movelets Combining Accelerometer and Gyroscope Data." Sensors 22, no. 7 (2022): 2618. http://dx.doi.org/10.3390/s22072618.

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Physical activity patterns can reveal information about one’s health status. Built-in sensors in a smartphone, in comparison to a patient’s self-report, can collect activity recognition data more objectively, unobtrusively, and continuously. A variety of data analysis approaches have been proposed in the literature. In this study, we applied the movelet method to classify the activities performed using smartphone accelerometer and gyroscope data, which measure a phone’s acceleration and angular velocity, respectively. The movelet method constructs a personalized dictionary for each participant

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Alvarez, Juan, Diego Álvarez, and Antonio López. "Accelerometry-Based Distance Estimation for Ambulatory Human Motion Analysis." Sensors 18, no. 12 (2018): 4441. http://dx.doi.org/10.3390/s18124441.

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In human motion science, accelerometers are used as linear distance sensors by attaching them to moving body parts, with their measurement axes its measurement axis aligned in the direction of motion. When double integrating the raw sensor data, multiple error sources are also integrated integrated as well, producing inaccuracies in the final position estimation which increases fast with the integration time. In this paper, we make a systematic and experimental comparison of different methods for position estimation, with different sensors and in different motion conditions. The objective is t

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Guzman-Acevedo, G. Michel, G. Esteban Vazquez-Becerra, Jesus R. Millan-Almaraz, et al. "GPS, Accelerometer, and Smartphone Fused Smart Sensor for SHM on Real-Scale Bridges." Advances in Civil Engineering 2019 (June 23, 2019): 1–15. http://dx.doi.org/10.1155/2019/6429430.

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During the last two decades, Global Positioning System (GPS) geodetic-grade receivers and accelerometers have been implemented in Structural Health Monitoring (SHM). Most recently, the use of sensors integrated in smartphones has been evolving. Although some of their capabilities are validated for small and local structures, there is a gap in knowledge about the use of sensors embedded in smartphones and other electronic devices for SHM of complex structures as bridges. To contribute in this area, this paper demonstrates the application of GPS receivers, accelerometers, and smartphones, integr

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Bahatskji, Oleksiy, and Valentyn Bahatskji. "Review and Analysis of the Characteristics of IoT Sensors." Cybernetics and Computer Technologies, no. 4 (December 4, 2023): 62–75. http://dx.doi.org/10.34229/2707-451x.23.4.8.

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Internet of things (IoT) is the concept of data transmission network between physical objects ("things"), equipped with built-in tools and technologies for interaction with each other or with the environment. The work is devoted to the inspection and analysis of sensors, how the IoT systems are associated with environmental objects. IOT uses a wide class of measurement tools, from elementary sensors (eg, temperature, pressure, light), consumption metering devices (such as intellectual meters) to complex integrated measuring systems. The parameters of 30 types of sensors for IoT are given, 2 of

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Rezinkina, Marina, and Claus Braxmaier. "Designs of Optomechanical Acceleration Sensors with the Natural Frequency from 5 Hz to 50 kHz." Designs 8, no. 2 (2024): 33. http://dx.doi.org/10.3390/designs8020033.

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In many applications, such as space navigation, metrology, testing, and geodesy, it is necessary to measure accelerations with frequencies ranging from fractions of a hertz to several kilohertz. For this purpose, optomechanical sensors are used. The natural frequency of such sensors should be approximately ten times greater than the frequency of the measured acceleration. In the case of triaxial acceleration measurements, a planar design with two sensors that measure accelerations in two perpendicular in-plane directions and a third sensor that measures out-of-plane acceleration is effective.

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Takeshita, Adam, Jonah Madrid, Ezekiel Granillo, and Abdessattar Abdelkefi. "Insights on the Impacts of Accelerometer Location on the Dynamics and Characteristics of Complex Structures." Sensors 23, no. 24 (2023): 9830. http://dx.doi.org/10.3390/s23249830.

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There exists a high level of difficulty in understanding the physical responses of complex dynamical systems. To this end, researchers have previously used different measurement techniques, such as displacement sensors or accelerometers, in the laboratory to capture a system’s dynamics. A well-known structure in the literature is the Box Assembly with Removable Component (BARC) whose purpose is to gain a deep understanding of testing complex systems. Further breaking down the structure, the Removable Component (RC) portion is often used as a relatively simplified version which retains signific

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FENATO JUNIOR, ALEXANDRE, LARISSA MARTINS GARCIA, GLEICI DA SILVA CASTRO PERDONÁ, and DANIEL AUGUSTO MARANHO. "MEASUREMENT OF PELVIC RETROVERSION DURING HIP FLEXION: EVALUATION WITH ACCELEROMETERS." Acta Ortopédica Brasileira 28, no. 2 (2020): 69–73. http://dx.doi.org/10.1590/1413-785220202801227237.

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ABSTRACT Objective: To quantify pelvic retroversion during clinical evaluation of hip flexion with accelerometers and to verify the reliability of these sensors to measure hip flexion. Methods: An accelerometer was positioned laterally in the pelvis to measure pelvic retroversion. Another accelerometer was positioned anteriorly on the thigh to evaluate hip flexion amplitude. The evaluations were performed with volunteers in supine position by three raters. For evaluation of pelvic retroversion, the mean ± SD (minimum-maximum) was calculated. Reliability of the accelerometer between raters was

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Marani, Roberto, Gennaro Gelao, and Anna Gina Perri. "A New System for Continuous Monitoring of Breathing and Kinetic Activity." Journal of Sensors 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/434863.

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We present a new system for acquiring simultaneously breathing rate and kinetic activity over a period of twenty-four hours. The system is based on a couple of sensors, which are very light, absolutely noninvasive, and compatible with everyday life. The proposed breathing sensor is cheap and uses a conductive rubber as active material. An analog signal representing the breathing rate is obtained from the sensor's signal, breath by breath, without any averaging or filtering. The kinetic activity sensor is based on a tiny accelerometer whose signal is averaged and filtered, so that both sensors

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Dai, Min, Jian Wang, Xiao Gang Sun, Shuang Hu, and Jun Xiang Jia. "Design and Implementation of the Control System for Two-Wheeled Self-Balancing Vehicles." Advanced Materials Research 588-589 (November 2012): 1606–10. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.1606.

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A control-system design for a two-wheeled self-balancing vehicle is discussed in this paper. We have developed a low-cost hardware platform based on AVR MCU, accelerometer sensor and gyroscope sensor, for which the critical circuits, such as sensors and motor driver, are introduced. The control strategy operates by two steps: a) securing the real-time vehicle posture by integrating the data from accelerometer and gyroscope sensors; b) using a closed-loop PID controller to keep the vehicle balanced. This control system is applied to a prototype two-wheeled self-balancing vehicle, whose performa

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