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Journal articles on the topic 'Capacitive sensors, measurement systems,angular displacement'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Xu, Xiaohu, Xingchen Fan, Zhicheng Yu, Wenhao Teng, and Jiaxing Chen. "A flexible high-precision capacitive displacement sensor." Journal of Physics: Conference Series 3019, no. 1 (2025): 012068. https://doi.org/10.1088/1742-6596/3019/1/012068.

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Abstract In flexible conveyor systems and measurement systems where linear and angular displacements are used in combination, the use of multiple linear and angular displacement sensors for displacement measurement increases the complexity of the system and poses a great challenge to system design and accurate positioning. In this paper, a flexible high-precision capacitive displacement sensor is proposed, which can be applied to both linear and angular displacement measurements. The sensor consists of a dynamic ruler with excitation electrodes and a fixed ruler with sensing electrodes. The ex

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2

Ma, Tianxiang, Shengqi Yang, Yongsen Xu, Dachuan Liu, Jinghua Hou, and Yunqing Liu. "Analysis and Correction of Measurement Error of Spherical Capacitive Sensor Caused by Assembly Error of the Inner Frame in the Aeronautical Optoelectronic Pod." Sensors 22, no. 23 (2022): 9543. http://dx.doi.org/10.3390/s22239543.

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The ball joint is a multi-degree-of-freedom transmission pair, if it can replace the inner frame in the aviation photoelectric pod to carry the optical load, which will greatly simplify the system structure of the photoelectric pod and reduce the space occupied by the inner frame. However, installation errors in ball joint siting introduce nonlinear errors that are difficult to correct and two degree of freedom angular displacement of the ball joint is difficult to detect, which limits application in the precision control of two degrees of freedom systems. Studies of spherical capacitive senso

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3

Yang, Shengqi, Yulei Xu, Yongsen Xu, et al. "A Novel Method for Detecting the Two-Degrees-of-Freedom Angular Displacement of a Spherical Pair, Based on a Capacitive Sensor." Sensors 22, no. 9 (2022): 3437. http://dx.doi.org/10.3390/s22093437.

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The spherical pair has an important role in the inner frame of the stabilization mechanism of the aviation optoelectronic pod. However, its two-degrees-of-freedom (2-DOF) angular displacement signal is difficult to detect, seriously restricting its application in aviation optoelectronic pods. Therefore, this study proposes a new method to measure a spherical pair’s 2-DOF angular displacement using a spherical capacitive sensor. The capacitive sensor presented by this method realizes the measurement of the 2-DOF angular displacement of the spherical pair by integrating the spherical electrode g

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4

Baratov, Rustam, and Almardon Mustafoqulov. "Smart angular displacement sensor for agricultural field robot manipulators." E3S Web of Conferences 386 (2023): 03008. http://dx.doi.org/10.1051/e3sconf/202338603008.

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This study presents the electromagnetic angular displacement sensor and its technical characteristics. The existing electromagnetic angular displacement sensors have been thoroughly analyzed and compared with other types of sensors. The reason for the low sensitivity of the electromagnetic angular displacement sensor has been investigated and some technical modification to the existing sensor has been made. The magnetic circuits of the electromagnetic sensors have been analyzed. A method is proposed for expanding the range of angular measurements up to 180 degrees and increasing the sensitivit

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5

Yu, Guang Ping, Shan Hui Wang, and Ying Gang Zhou. "Research of Displacement Measuring System Based on Capacitive Grating Sensor." Applied Mechanics and Materials 20-23 (January 2010): 1260–64. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.1260.

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Capacitive grating sensor can be used to measure the length, as its capacitance changes with the shift difference. There are several measuring systems consisting of capacitive sensor, but all their basic principles are capacitive differential sensing. The structure, principles and characteristics of capacitive sensors are introduced in this paper. Especially, we designed a high-resolution electronic length measuring system based on Capacitive Grating Sensor. And the measurement error of the system and the reason are analysed. For this system, the measuring range is from 0 to 500mm, the resolut

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6

Yu, Jian-Ping, Wen Wang, Xin Li, and Zhao-Zhong Zhou. "A Novel Quadrature Signal Estimation Method for a Planar Capacitive Incremental Displacement Sensor." Measurement Science Review 16, no. 3 (2016): 127–33. http://dx.doi.org/10.1515/msr-2016-0015.

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Abstract This paper presents a novel phase-shift arctangent (PSA) interpolation method to improve the measurement accuracy of a planar capacitive incremental displacement sensor. Signals of planar capacitive micro-sensors acquire waveform errors, including sensitivity differences and phase-shift errors, because of static errors and dynamic disturbances. In the proposed PSA scheme, such errors are removed completely by loading a particular arctangent function. Moreover, measuring efficiency of the proposed planar capacitive sensors is improved by combining coarse measurement and fine estimation

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7

Daul, Lars, Tao Jin, Ingo Busch, and Ludger Koenders. "Influence of Geometric Properties of Capacitive Sensors on Slope Error and Nonlinearity of Displacement Measurements." Sensors 21, no. 13 (2021): 4270. http://dx.doi.org/10.3390/s21134270.

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Capacitive sensors are widely used in industrial applications, such as CNC machine tools, where reliable positioning in the micrometer range with nanometer accuracy is required. Hence, these sensors are operated in harsh industrial environments. The accuracy of these sensors is mainly limited by slope errors and nonlinearities. In practice, the required accuracy of these sensors is achieved by a calibration against a metrological high-quality reference such as interferometric displacement measurement systems. This usually involves the use of high-order polynomials as calibration functions base

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8

Xu, HanYang, Yulong Zhao, Kai Zhang, and Kyle Jiang. "A Capacitive MEMS Inclinometer Sensor with Wide Dynamic Range and Improved Sensitivity." Sensors 20, no. 13 (2020): 3711. http://dx.doi.org/10.3390/s20133711.

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This paper proposes a novel capacitive liquid metal microelectromechanical system (MEMS) inclinometer sensor and introduces its design, fabrication, and signal measurement. The sensor was constructed using three-layer substrates. A conductive liquid droplet was rolled along an annular groove of the intermediate substrate to reflect angular displacement, and capacitors were used to detect the position of the droplet. The numerical simulation work provides the working principle and structural design of the sensor, and the fabrication process of the sensor was proposed. Furthermore, the static ca

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9

Baratov, Rustam, and Almardon Mustafoqulov. "Model of field robot manipulators and sensor for measuring angular displacement of its rotating parts." E3S Web of Conferences 401 (2023): 04006. http://dx.doi.org/10.1051/e3sconf/202340104006.

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This research aims to measure and control the angular change of rotation mechanisms of (energy-saving) robotic manipulators used in agriculture to develop digital farming, energy saving, and quality product harvesting. The novelty of this research is that different processes and images are placed in a special processor for processing, and this robot processes the image according to the size of the tomato plant and tomato and tries to harvest the crop. This study presents the electromagnetic angular displacement sensor and its technical characteristics. The existing electromagnetic angular disp

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10

Vallance, R. Ryan, Eric R. Marsh, and Philip T. Smith. "Effects of Spherical Targets on Capacitive Displacement Measurements." Journal of Manufacturing Science and Engineering 126, no. 4 (2004): 822–29. http://dx.doi.org/10.1115/1.1813476.

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Capacitive displacement sensors are widely used in precision manufacturing and metrology because they measure displacements with nanometer resolution. Prior literature usually treats capacitive sensors consisting of electrodes arranged as parallel plates. In this work, the target electrode is spherical, which is common in machine tool metrology, spindle metrology, and the measurement of sphericity. The capacitance due to a gap between flat and spherical electrodes is less than that of two flat electrodes, which causes four effects. As the diameter of the target electrode is reduced, the sensit

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11

Zhang, Xi, Sheng Bao, and Fang Cheng. "Measurement of Radial and Axial Error Motion in a High Precision Spindle." Advanced Materials Research 381 (November 2011): 34–37. http://dx.doi.org/10.4028/www.scientific.net/amr.381.34.

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The performance of a spindle is critical for high precision machining. In this paper, the spindle error motion in a high precision milling center was measured. The spindle is driven by air turbine with rotation speed of 120,000rpm. The radial and axial error motion of the axis of rotation was measured. The capacitive displacement sensors with nanometer resolution were mounted against the master gauge pin through the dedicated setup. Tlusty method was adopted to synchronize angular position of the spindle and data sampling. The measured radial and axial error motion of the spindle were 2.73μm a

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12

Trutnev, G. A., K. K. Perevozchikov, and S. B. Nazarov. "Sensing System and Methods for Measuring Oscillations in the Resonator of a Hemispherical Resonator Gyroscope." Herald of the Bauman Moscow State Technical University. Series Instrument Engineering, no. 1 (130) (February 2020): 50–63. http://dx.doi.org/10.18698/0236-3933-2020-1-50-63.

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The paper considers a hemispherical resonator gyroscope and methods for combining eight capacitive displacement sensors into a measuring instrument. We propose a circuit diagram for a measuring instrument based on operational amplifiers. The diagram makes it possible to implement oscillation measurement for direct and alternating resonator voltages as well as a combined scenario. We derived a mathematical model simulating the output signal of the measuring instrument. We analysed the sensitivity of our system for different implementations of the measuring instrument. For the case when the modu

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13

Fan, Yue, Wenli Ma, Ping Jiang, Jinlong Huang, Kewei Chen, and Nian Pan. "Improving Angular Accuracy of a Scanning Mirror Based on Error Modeling and Correction." Sensors 19, no. 2 (2019): 367. http://dx.doi.org/10.3390/s19020367.

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Scanning mirrors appear to be key components in optoelectronic systems for line-of-sight (LOS) stabilization. For improving the angular accuracy of a scanning mirror based on the eddy current displacement sensor measurement, an angular error-correction method is proposed and demonstrated. A mathematic angular error model with physical parameters was developed, and the cross-validation method was employed to determine the reasonable order of the Maclaurin series used in the error model, which increased the exactitude and robustness of the correction method. The error parameters were identified

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14

Gao, Yan, Ketian Sun, Jiayi Tian, and Xiaodong Wu. "Research on the Application of MEMS Intelligent Sensor in Abnormal Monitoring of Metro Tunnel by Simplified Model Tests." Micromachines 13, no. 8 (2022): 1242. http://dx.doi.org/10.3390/mi13081242.

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The current monitoring methods for tunnel structure deformation mainly focus on laser distance measurement, fiber Bragg grating, photogrammetry, electronic total station, hydrostatic leveling and so on. Compared with traditional monitoring methods, MEMS sensors have the advantages of small size, low cost, low energy consumption and high accuracy. In this paper, MEMS sensors are used for the continuous real-time intelligent monitoring of model tunnels, and the multi-point deployment of MEMS sensors is set up for the tunnel structure monitoring with the indicators of acceleration and inclination

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15

Malyutin, D. M. "Structural Solutions that Increase the Dynamic Accuracy of a Wave Solid-State Gyroscope." Devices and Methods of Measurements 12, no. 2 (2021): 146–55. http://dx.doi.org/10.21122/2220-9506-2021-12-2-146-155.

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The development of wave solid-state gyroscopes (VTG) is one of the promising areas of development of gyroscopic angular velocity sensors. VTG from the standpoint of manufacturing technology, tuning and control systems, as well as accuracy characteristics, has a number of advantages compared to other types of gyroscopes. When developing VTG, they strive to reduce the gyroscope's own care, zero signal bias, and the non-linearity of the scale factor in the operating temperature range However, when creating the device, due attention is often not paid to the existing opportunities to improve the dy

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16

Shan, Dan, Jinhe Su, Xiaofeng Wang, Yujun Liu, Taojian Zhou, and Zebiao Wu. "VID-SLAM: Robust Pose Estimation with RGBD-Inertial Input for Indoor Robotic Localization." Electronics 13, no. 2 (2024): 318. http://dx.doi.org/10.3390/electronics13020318.

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This study proposes a tightly coupled multi-sensor Simultaneous Localization and Mapping (SLAM) framework that integrates RGB-D and inertial measurements to achieve highly accurate 6 degree of freedom (6DOF) metric localization in a variety of environments. Through the consideration of geometric consistency, inertial measurement unit constraints, and visual re-projection errors, we present visual-inertial-depth odometry (called VIDO), an efficient state estimation back-end, to minimise the cascading losses of all factors. Existing visual-inertial odometers rely on visual feature-based constrai

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17

Guo, Xiangyu, and ChaBum Lee. "Cosine Error-Free Metrology Tool Path Planning for Thickness Profile Measurements." Journal of Manufacturing Science and Engineering 143, no. 4 (2020). http://dx.doi.org/10.1115/1.4048433.

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Abstract This paper presents a novel thickness profile measuring system that measures double-sided thin pipe wall surfaces in a non-contact, continuous, cosine error-free, and fast manner. The surface metrology tool path was developed to align the displacement sensors always normal to the double-sided surfaces to remove cosine error. A pair of capacitive-type sensors that were placed on the rotary and linear axes simultaneously scans the inner and outer surfaces of thin walls. Because the rotational error of the rotary axis can severely affect the accuracy in thickness profile measurement, suc

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18

Van Kann, Frank J., and Alexey V. Veryaskin. "A Novel Capacitive Sensor Interface Based on a Simple Capacitance-to-Phase Converter." Measurement Science and Technology, July 23, 2024. http://dx.doi.org/10.1088/1361-6501/ad6681.

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Abstract A novel room temperature capacitive sensor interface circuit is proposed and successfully tested, which uses a modified All-Pass filter architecture combined with a simple series resonant tank circuit with a moderate Q-factor. It is fashioned from a discrete inductor with small dissipation resonating with a grounded capacitor acting as the sensing element to obtain a resolution of ∆C ~ 2 zF in a capacitance range of 10 – 30 pF. The circuit converts the change in capacitance to the change in the phase of a carrier signal in a frequency range with a central frequency set up by the tank

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