Log in

Relevant bibliographies by topics / Ultrasonic distance measurement / Journal articles

To see the other types of publications on this topic, follow the link: Ultrasonic distance measurement.

Journal articles on the topic 'Ultrasonic distance measurement'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ultrasonic distance measurement.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

R, eeja S., Venkat Durga Sriram, Tarun eddy R, Venkatamanu ., and Rino Cherian. "Ultrasonic Distance Measurement." International Journal of Computer Sciences and Engineering 06, no. 10 (November 30, 2018): 42–44. http://dx.doi.org/10.26438/ijcse/v6si10.4244.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Loughlin, Clive. "Ultrasonic measurement: keeping your distance." Sensor Review 9, no. 2 (February 1989): 85–89. http://dx.doi.org/10.1108/eb007792.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Srijith, Biyyala. "Arduino based Distance Measurement Sensor using Ultrasonic Sensor." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 20, 2021): 1789–99. http://dx.doi.org/10.22214/ijraset.2021.35346.

Full text

Abstract:

The project we designed is used to develop a distance measurement system using ultrasonic waves and interfaced with Arduino UNO. We know that the human audible range is from 20hz to 20khz. We can use these frequency range waves through ultrasonic sensor HC-SR04. The main advantages of this sensor are when this sensor is interfaced with Arduino which is a control system and a sensing system, a proper calculation of the distance measurement can be done by using different types of new techniques. As huge amounts are spent on hundreds of inflexible circuit boards, the Arduino board will allow the business to bring many more unique devices. These distance measurement systems are mostly used as range meters and as proximity detectors in the different types of industries. The hardware part of the ultrasonic sensor is interfaced with the Arduino Uno board. This type of measuring distance is an efficient way to measure even small distances accurately. The distance of an object from the sensor is measured by using an ultrasonic sensor. After knowing the speed of the sound wave the distance of an object can be calculated.

APA, Harvard, Vancouver, ISO, and other styles

4

Kelemenová, Tatiana, and Eduard Jakubkovič. "CONDITION OF ULTRASONIC DISTANCE MEASUREMENT SYSTEM." Acta Mechatronica 4, no. 2 (June 30, 2019): 1–5. http://dx.doi.org/10.22306/am.v4i2.47.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Kawabata, Kuniaki, and Hisato Kobayashi. "Distance Measurement of Multiple Ultrasonic Sensors." IEEJ Transactions on Electronics, Information and Systems 117, no. 6 (1997): 799–804. http://dx.doi.org/10.1541/ieejeiss1987.117.6_799.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Salambue, Roni. "PERANCANGAN ALAT PENGUKUR TINGGI BADAN DIGITAL DENGAN METODE SONAR." Rabit : Jurnal Teknologi dan Sistem Informasi Univrab 1, no. 1 (January 10, 2016): 31–36. http://dx.doi.org/10.36341/rabit.v1i1.14.

Full text

Abstract:

Sonar is an abbreviation of (sound of ranging), which means the technique of spreading the sound for navigation and communicating or detecting other ships. Sonar can be applied to measure the distance of an object by reflecting ultrasonic waves to the object and then captured through the reciver. The ultrasonic wave is reflected by the SR04 sensor and uses Arduino Uno as a microcontroller where its distance is calculated. LCD is used to display measurement results so that it is easier to take height measurements. Arduino is a device that can be programmed and connected directly with an ultrasonic sensor used for measurements. The ultrasonic sensor is placed on a pole as high as 200 cm, and the distance of 200 cm is used as a benchmark measurement. Measurement using manual and digital can work well, but using digital level measurement speed is better than measuring using a manual.

APA, Harvard, Vancouver, ISO, and other styles

7

Chen, Yi Kang, Zheng Jie Zhang, and Ming Rui Chen. "The Design of Millimeter-Level Ultrasonic Distance Measurement Circuit." Advanced Materials Research 562-564 (August 2012): 1260–65. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1260.

Full text

Abstract:

By analyzing the causes of ultrasonic distance measurement error, through the use of temperature compensation, and increasing the measured time interval to the microsecond level, ultrasonic ranging circuit can achieve the millimeter level. After the circuit design and construction, the ultrasonic range finder was calibrated from 1cm to 21cm. The measurement results show that in the scope of work, the linearity reached 0.999623; the measurement of the ultrasonic range finder achieved the millimeter level.

APA, Harvard, Vancouver, ISO, and other styles

8

Yang, Ji Hong, Shu Guang Zhu, Yu Ling Zhang, Tie Jun Liu, and Yan Qing Jiang. "Design of Ultrasound Infrared Compound Distance Measurement System Based on LabVIEW." Applied Mechanics and Materials 101-102 (September 2011): 109–12. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.109.

Full text

Abstract:

In order to meet the mobile robot’s accuracy and speed requirements in processing obstacle information based on the study of the principle of ultrasonic and infrared distance measurement, the ultrasonic infrared measurements system is designed using Mega16L microcontroller. The hardware of the system, data fusion and software components were studied. Bayes estimation for the data fusion, which can greatly improve the measurement accuracy, was used. The human-computer interface and back panel algorithm were developed with the development language of LabVIEW. Experimental results show that the measurement error of the combined measurement system is in ± 1mm between 0 ~ 300cm, which can meet the design requirements and flexible operation.

APA, Harvard, Vancouver, ISO, and other styles

9

Xiao, Zhi Hong, Si Yu Wu, and Qi Yuan An. "Design of Ultrasonic Distance Measurement System Based on Microcontroller." Applied Mechanics and Materials 333-335 (July 2013): 296–99. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.296.

Full text

Abstract:

The principle of an ultrasonic distance measurement system is introduced. The system adopts non-contact measurement method and it consists of signal generator, echo receiver circuit, microcontroller, time sequential logic control circuit, target distance detection circuit, temperature measurement circuit, RS-485 serial interface circuit, ultrasonic sensor and its driver circuit, etc. The results show that the system has high precision within measuring range from 20cm to 15m.

APA, Harvard, Vancouver, ISO, and other styles

10

Li, Xi, Jian Li, and Mark Sheplak. "CW‐based proximity distance measurement by ultrasonic sensors." Journal of the Acoustical Society of America 110, no. 5 (November 2001): 2765. http://dx.doi.org/10.1121/1.4777671.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Guo, Hua, and Sheng Wen Yu. "Research and Design for High Precision Ultrasonic Distance Measurement System." Applied Mechanics and Materials 442 (October 2013): 354–59. http://dx.doi.org/10.4028/www.scientific.net/amm.442.354.

Full text

Abstract:

In this article, discussed the traditional method of ultrasonic distance measurement , analyzed the main factors that restrict to impove the precision, and according to the energy attenuation of ultrasonic transmission, designed a measurement method based on rebuilding the digital signal waveform, this method solved the measurement precision problem caused by the traditional threshold method, the accuracy is no longer affected by the attenuation of ultrasonic energy, achieved the consistency precision in full range, makes the measuring accuracy is nearly one hundred times higher than the threshold method.

APA, Harvard, Vancouver, ISO, and other styles

12

Jiang, Yu, Rui Song, and Mingting Yuan. "Improvement of Ultrasonic Distance Measuring System." ITM Web of Conferences 17 (2018): 02008. http://dx.doi.org/10.1051/itmconf/20181702008.

Full text

Abstract:

This paper mainly introduces a kind of ultrasonic distance measuring system with AT89C51 single chip as the core component. The paper expounds the principle of ultrasonic sensor and ultrasonic ranging, hardware circuit and software program, and the results of experiment and analysis.The hardware circuit based on SCM, the software design adopts the advanced microcontroller programming language.The amplitude of the received signal and the time of ultrasonic propagation are regulated by closed loop control. [1,2]The double closed loop control technology for amplitude and time improves the measuring accuracy of the instrument. The experimental results show that greatly improves the measurement accuracy of the system.

APA, Harvard, Vancouver, ISO, and other styles

13

Shin, Seungin, Min-Hyun Kim, and Seibum B. Choi. "Ultrasonic Distance Measurement Method With Crosstalk Rejection at High Measurement Rate." IEEE Transactions on Instrumentation and Measurement 68, no. 4 (April 2019): 972–79. http://dx.doi.org/10.1109/tim.2018.2863999.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Zhang, Jian Qiang, Jun Zhang, and Hong Yan Zhao. "Design of High-Precision Ultrasonic Ranging System." Applied Mechanics and Materials 563 (May 2014): 199–202. http://dx.doi.org/10.4028/www.scientific.net/amm.563.199.

Full text

Abstract:

This paper introduces one ultrasonic distance measurement device based on single chip processor and mainly describes its hardware circuit and software design. The ultrasonic distance measurement device has many merits such as simple structure, low-cost, high-accuracy, microminiaturization, digital display and so on; this result reaches the expected target. The practice result shows that the ultrasonic telemeter has very high generalizing value.

APA, Harvard, Vancouver, ISO, and other styles

15

Karwur, Satoro Disney, Hesky S. Kolibu, and Verna A. Suoth. "OBJECT DETECTOR PROTOTYPE USING ULTRASONIC SENSOR FOR INDOOR SECURITY MONITORING SYSTEM." JURNAL ILMIAH SAINS 14, no. 2 (October 15, 2014): 100. http://dx.doi.org/10.35799/jis.14.2.2014.6064.

Full text

Abstract:

ABSTRACT A research has been conducted to make an object detector prototype using ultrasonic sensor for indoor security monitoring system. The testing object placed in front of the sensor and the measurement conducted in distance and angle variations. For indoor implementation, graphical display of object detection on computer screen given by blue-to-yellow transition to indicate the nearing object and its reverse to indicate the fading object. The trend of accuracy of the object distance measurement has a declining linear pattern, it means that the accuracy of object detection will decrease if the distance and or angle from the object to the detector are increase. Keywords: object detector, ultrasonic sensor, indoor security monitoring PURWARUPA DETEKTOR OBJEK MENGGUNAKAN SENSOR ULTRASONIK UNTUK SISTEM PEMANTAUAN KEAMANAN DALAM RUANGAN ABSTRAK Sebuah penelitian telah dilakukan untuk membuat purwarupa detektor objek menggunakan sensor ultrasonik untuk sistem pemantauan keamanan dalam ruangan. Objek pengujian diletakkan di depan sensor dan pengukuran dilakukan pada variasi jarak dan sudut. Untuk implementasi dalam ruangan, tampilan grafis pendeteksian objek pada layar komputer diberikan oleh transisi warna biru ke kuning untuk menunjukkan objek yang mendekat dan kebalikannya untuk menunjukkan objek yang menjauh. Tren akurasi pendeteksian objek memiliki pola menurun secara linear, itu berarti bahwa akurasi pendeteksian objek akan berkurang jika jarak dan atau sudut dari objek ke detektor bertambah besar. Kata kunci: detektor objek, sensor ultrasonik, pemantauan keamanan dalam ruangan

APA, Harvard, Vancouver, ISO, and other styles

16

Licznerski, Tomasz J., Jarosław Jaroński, and Dariusz Kosz. "Ultrasonic system for accurate distance measurement in the air." Ultrasonics 51, no. 8 (December 2011): 960–65. http://dx.doi.org/10.1016/j.ultras.2011.05.011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Li, Weihua, Qiang Chen, and Jiangtao Wu. "Double threshold ultrasonic distance measurement technique and its application." Review of Scientific Instruments 85, no. 4 (April 2014): 044905. http://dx.doi.org/10.1063/1.4871993.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Schlegl, Thomas, Thomas Bretterklieber, Markus Neumayer, and Hubert Zangl. "Combined Capacitive and Ultrasonic Distance Measurement for Automotive Applications." IEEE Sensors Journal 11, no. 11 (November 2011): 2636–42. http://dx.doi.org/10.1109/jsen.2011.2155056.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Carullo, A., and M. Parvis. "An ultrasonic sensor for distance measurement in automotive applications." IEEE Sensors Journal 1, no. 2 (2001): 143. http://dx.doi.org/10.1109/jsen.2001.936931.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Kuang, W. T., and A. S. Morris. "Ultrasonic Doppler distance measurement technique for robot tracking system." Electronics Letters 35, no. 11 (1999): 942. http://dx.doi.org/10.1049/el:19990615.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Marioli, D., E. Sardini, and A. Taroni. "Ultrasonic distance measurement for linear and angular position control." IEEE Transactions on Instrumentation and Measurement 37, no. 4 (1988): 578–81. http://dx.doi.org/10.1109/19.9817.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Cheng, Wei Dong, and Li Song Zhang. "Ultrasonic Rangefinder Based on P89LPC932." Applied Mechanics and Materials 214 (November 2012): 867–71. http://dx.doi.org/10.4028/www.scientific.net/amm.214.867.

Full text

Abstract:

In order to overcome the limitation, some traditional distance measurement methods in some special occasions go beyond measure flaw. This design centres on P89LPC932 and realizes non-contact air measurement by use of an ultrasonic sensor, which fully considers the close relationship of velocity and temperature, thus temperature compensation, further get measurement distance about 700cm, optimal precision at 1%. This design has some features, such as the strong anti-jamming capability, simple installation, small size, low power consumption, easy to embed in other system.

APA, Harvard, Vancouver, ISO, and other styles

23

Gluck, Tomer, Moshe Kravchik, Samuel Chocron, Yuval Elovici, and Asaf Shabtai. "Spoofing Attack on Ultrasonic Distance Sensors Using a Continuous Signal." Sensors 20, no. 21 (October 29, 2020): 6157. http://dx.doi.org/10.3390/s20216157.

Full text

Abstract:

Ultrasonic distance sensors use an ultrasonic pulse’s time of flight to calculate the distance to the reflecting object. Widely used in industry, these sensors are an important component in autonomous vehicles, where they are used for such tasks as object avoidance and altitude measurement. The proper operation of such autonomous vehicles relies on sensor measurements; therefore, an adversary that has the ability to undermine the sensor’s reliability can pose a major risk to the vehicle. Previous attempts to alter the measurements of this sensor using an external signal succeeded in performing a denial-of-service (DoS) attack, in which the sensor’s reading showed a constant value, and a spoofing attack, in which the attacker could control the measurement to some extent. However, these attacks require precise knowledge of the sensor and its operation (e.g., timing of the ultrasonic pulse sent by the sensor). In this paper, we present an attack on ultrasonic distance sensors in which the measured distance can be altered (i.e., spoofing attack). The attack exploits a vulnerability discovered in the ultrasonic sensor’s receiver that results in a fake pulse that is produced by a constant noise in the input. A major advantage of the proposed attack is that, unlike previous attacks, a constant signal is used, and therefore, no prior knowledge of the sensor’s relative location or its timing behavior is required. We demonstrate the attack in both a lab setup (testbed) and a real setup involving a drone to demonstrate its feasibility. Our experiments show that the attack can interfere with the proper operation of the vehicle. In addition to the risk that the attack poses to autonomous vehicles, it can also be used as an effective defensive tool for restricting the movement of unauthorized autonomous vehicles within a protected area.

APA, Harvard, Vancouver, ISO, and other styles

24

Tabata, Katsuhiko, Toshiaki Iwai, Shigeki Kudomi, Yoshimichi Endo, and Yoshifumi Nishida. "Precision Improvement of Position Measurement Using Two Ultrasonic Land Markers." Journal of Robotics and Mechatronics 26, no. 2 (April 20, 2014): 245–52. http://dx.doi.org/10.20965/jrm.2014.p0245.

Full text

Abstract:

We have been developing a position measurement system for navigation of automated guided vehicles (AGVs) called SPARS. In this system, the AGV’s ultrasonic position measurement module communicates via ultrasonic waves with ultrasonic transponders that serve as land markers on a path to measure its relative position during travel. In previous studies, we conducted experiments and introduced improvements using the relative position between the AGV and land marker estimated from position information from a single land marker. It was found, however, that the ultrasonic communication S/N ratio decreases, lowering position accuracy, when the land marker distance and its direction angle are great. To solve this problem and improve accuracy, we examine position measurement based on distance information from two land markers.

APA, Harvard, Vancouver, ISO, and other styles

25

Feng, Hai Qin. "The Design of Ultrasonic Distance Measurement System for Auto Reversing Anti-Collision." Applied Mechanics and Materials 602-605 (August 2014): 1546–49. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.1546.

Full text

Abstract:

This paper introduces the working principle, hardware and software designs of ultrasonic distance measurement based on STC89C52RD MCU. The hardware mainly consists of ultrasonic module, liquid crystal display module, alarm module and function key circuit. The system can clearly display the measurement results with high accuracy and can be applied to auto reverse anti-collision alarm system.

APA, Harvard, Vancouver, ISO, and other styles

26

Choquet, Marc, René Héon, Ghislain Vaudreuil, Jean-Pierre Monchalin, Christian Padioleau, and Ron H. Goodman. "REMOTE THICKNESS MEASUREMENT OF OIL SLICKS ON WATER BY LASER-ULTRASONICS." International Oil Spill Conference Proceedings 1993, no. 1 (March 1, 1993): 531–36. http://dx.doi.org/10.7901/2169-3358-1993-1-531.

Full text

Abstract:

ABSTRACT At the National Research Council of Canada Industrial Materials Institute, research is in progress on the application of laser-ultrasonics to remote measurement of the thickness of oil on water. Laser-ultrasonics is a novel technique developed for the nondestructive inspection of materials. It uses a short pulse laser for the generation of ultrasonic waves in the oil layer and a second laser, coupled to an optical interferometer, for the remote detection of the ultrasonic surface motion. Direct measurement of the time of flight of the ultrasonic wave provides the value of the thickness of the oil layer. Application of this technique to thickness measurement of oil on water has been studied in small and large scale laboratory tests. Small scale tests demonstrate the direct and unambiguous determination of the oil layer thickness. Accuracy is essentially limited by the knowledge of the acoustic properties of the oil. Large scale tests show that a distance of almost 37 meters does not severely impede the method, so airborne application appears possible. Surface motion such as that caused by sea waves does not reduce the accuracy of the thickness determination but does limit the measurement rate. Preliminary airborne tests with a single laser probe confirm that laser-ultrasonics monitoring of the thickness of an oil spill is feasible.

APA, Harvard, Vancouver, ISO, and other styles

27

Synowiec, Piotr, Artur Andruszkiewicz, Wiesław Wędrychowicz, Piotr Piechota, and Elżbieta Wróblewska. "Influence of Flow Disturbances behind the 90° Bend on the Indications of the Ultrasonic Flow Meter with Clamp-On Sensors on Pipelines." Sensors 21, no. 3 (January 28, 2021): 868. http://dx.doi.org/10.3390/s21030868.

Full text

Abstract:

The subject matter of the article concerns velocities/flow rate measurements in the area of disturbed flows-behind the 90° bend. They were conducted by means of an ultrasonic flowmeter with clamp-on sensors on pipeline, for water and two different Reynolds numbers of 70,000 and 100,000, corresponding to two velocities of approximately 1.42 m/s and 2.04 m/s. The tests were carried out at 12 distances from the disturbance. Sensors on the circumference of the pipeline were mounted 30° each. The correction factor values were calculated for the given measurement geometry. The measurements have shown that the values of this coefficient are always greater than 1, which means that the ultrasonic flow meter understates the speed values. They also showed that already at a distance of 8 nominal diameters from the disturbance, the correction factor does not exceed 1.02, so the measurement errors are within the maximum permissible error (MPE) of a typical ultrasonic flow meter. For distances less than eight nominal diameters from the disturbance, not taking the correction factor value into the account can lead to systematic errors of up to 10.8%. Studies have also proved that in each measurement plane behind the disturbance there are two mounting angles for the ultrasonic sensors, 60° and 240° respectively, for which the correction factor values are minimal. Additionally, using the laser Doppler anemometry (LDA) method, velocity solids were determined at individual distances from the disturbance, and the projections of velocity blocks on the appropriate plane represented velocity profiles and indicated the distances from the disturbance at which these profiles stabilise.

APA, Harvard, Vancouver, ISO, and other styles

28

Schweinzer, Herbert F., and H. Elmer. "High Resolution Ultrasonic Distance Measurement Systems Using Pulse Compression and Their Applications." Key Engineering Materials 295-296 (October 2005): 301–6. http://dx.doi.org/10.4028/www.scientific.net/kem.295-296.301.

Full text

Abstract:

Ultrasonic distance measurement in air is broadly used for industrial and commercial low cost applications with medium or small resolution. Configurations for the applications are usually restricted to passive reflection and A-B measurement. This paper gives a survey of the ultrasonic distance measurement method with high resolution based on pulse compression. Improvements resulting from this method include good noise suppression, possibility to operate several systems in parallel without disturbing influence of cross talk, and high measurement rate. Modified configurations and the available high resolution lead to new applications which are summarized.

APA, Harvard, Vancouver, ISO, and other styles

29

Elmer, Hannes, Herbert Schweinzer, and Gottfried Magerl. "Hochauflösende Ultraschall-Entfernungsmessung für große Distanzen (High Resolution Ultrasonic Distance Measurement for Long Distances)." tm - Technisches Messen 70, no. 4-2003 (April 2003): 173–79. http://dx.doi.org/10.1524/teme.70.4.173.20186.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Li, Sen, Chunyong Feng, Xiaoge Liang, Hengjie Qin, Haihang Li, and Long Shi. "A Guided Vehicle under Fire Conditions Based on a Modified Ultrasonic Obstacle Avoidance Technology." Sensors 18, no. 12 (December 10, 2018): 4366. http://dx.doi.org/10.3390/s18124366.

Full text

Abstract:

Low visibility and hot smoke environment under fire conditions can largely hamper the related fire rescue processes. Ultrasound obstacle avoidance technology is then useful for guidance. However, the biggest challenge of adopting ultrasound technology comes from accurate distance measurements under the disturbances of high temperature and soot particle concentration. It is critical to measure the propagation speed under the complicated fire conditions. Therefore, in this study, a baffle calibration method was proposed to improve the accuracy of distance measurement of an obstacle. The method is based on two ultrasound measurement systems, while one is used to calibrate the propagation speed of ultrasound based on the fixed distanced baffle and the other is for the dynamic measurement of obstacle distance based on the calibrated speed. The viability of this method on the guided vehicle was confirmed based on the experiments. From its comparison to those existing methods, such as constant speed and temperature compensation methods, it was known from that the proposed baffle calibration method provides the best prediction. It was obtained that the maximum errors based on the baffle calibration method are 2.75% and 2.62% under the two representative fire scenarios, respectively, which are much lower than those of constant speed (7.81% and 8.4%) and temperature compensation methods (10.4% and 5.12%).

APA, Harvard, Vancouver, ISO, and other styles

31

Abbas, Mustafa M., and Mahmood K. Ibrahim. "SMART TRAFFIC SIGNALING SYSTEM BASED ON ULTRASONIC DISTANCE MEASUREMENT SENSOR." International Journal of Research -GRANTHAALAYAH 8, no. 5 (June 12, 2020): 312–21. http://dx.doi.org/10.29121/granthaalayah.v8.i5.2020.59.

Full text

Abstract:

Currently, in Baghdad, vehicles driver still depends on the police of traffic to regulate the traffic system according to the density of traffic. There has been made a lot of researches on making the traffic signals automated by using image processing techniques, infra-Red Sensor, and laser sensors. The cost and complicity are the biggest challenge in these systems. So, to avoid the previously mentioned obstacles and with the employing of Machine to Machine M2M Communication, a system of traffic signaling that based ultrasonic sensor has been developed, where only one ultrasonic sensor is used at each road at 500 meters down the street away from the traffic light where there's obvious traffic congestion that needs to be solved. The ultra-sonic sensor would detect the density of traffic and communicate to Arduino that is responsible for acquiring signals from sensors on the roads which in turn will communicate with other Arduino which is responsible for manipulating the traffic light signals accordingly. So, as a result, the collected data will help the authorized person in monitoring the roads and change the green light time of each road based on traffic density in a specified date and time also take a report where the analysis will be made on heavy traffic and less traffic.

APA, Harvard, Vancouver, ISO, and other styles

32

Lan, Zhen Ping, Hui Min Meng, Jin Tao Li, Yu Ru Wang, Ping Li, and Ji Yu Jin. "Non-Contact Measurement Device Based on Ultrasonic Technology." Applied Mechanics and Materials 556-562 (May 2014): 2654–57. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.2654.

Full text

Abstract:

In the light of application requirements for non-contact measurement, this paper puts forward a non-contact measuring device. It generates the ultrasonic through electrical way with SCM detecting echo, the timer detecting ultrasonic transmitting and receiving time difference. Then it carries out the non-contact measurement of distance, and displays on LCD. The device can be used in many aspects, such as alarm, data monitoring, etc

APA, Harvard, Vancouver, ISO, and other styles

33

Panich. "Comparison of Distance Measurement Between Stereo Vision and Ultrasonic Sensor." Journal of Computer Science 6, no. 10 (October 1, 2010): 1108–10. http://dx.doi.org/10.3844/jcssp.2010.1108.1110.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Huang, Ke-Nung, and Yu-Pei Huang. "Multiple-frequency ultrasonic distance measurement using direct digital frequency synthesizers." Sensors and Actuators A: Physical 149, no. 1 (January 2009): 42–50. http://dx.doi.org/10.1016/j.sna.2008.09.014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Webster, D. "A pulsed ultrasonic distance measurement system based upon phase digitizing." IEEE Transactions on Instrumentation and Measurement 43, no. 4 (1994): 578–82. http://dx.doi.org/10.1109/19.310171.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Ming Yang, S. L. Hill, B. Bury, and J. O. Gray. "A multifrequency AM-based ultrasonic system for accuracy distance measurement." IEEE Transactions on Instrumentation and Measurement 43, no. 6 (1994): 861–66. http://dx.doi.org/10.1109/19.368084.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Huang, C. F., M. S. Young, and Y. C. Li. "Multiple-frequency continuous wave ultrasonic system for accurate distance measurement." Review of Scientific Instruments 70, no. 2 (February 1999): 1452–58. http://dx.doi.org/10.1063/1.1149604.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Huang, Y. S., and M. S. Young. "An Accurate Ultrasonic Distance Measurement System with Self Temperature Compensation." Instrumentation Science & Technology 37, no. 1 (January 7, 2009): 124–33. http://dx.doi.org/10.1080/10739140802584780.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Elmer, Hannes, and Herbert Schweinzer. "Performance considerations of ultrasonic distance measurement with well defined properties." Journal of Physics: Conference Series 13 (January 1, 2005): 133–36. http://dx.doi.org/10.1088/1742-6596/13/1/031.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Chen, Hu, Jin Dan Zhu, and Yan Xun Xiang. "Measurement of Welding Residual Stress by Ultrasonic Technology." Applied Mechanics and Materials 750 (April 2015): 206–13. http://dx.doi.org/10.4028/www.scientific.net/amm.750.206.

Full text

Abstract:

An ultrasonic method was developed to measure the residual stress in a welded joint based on the modified acoustic-elasticity theory. Phase frequency analysis method was introduced by incombination with shear wave and longitudinal wave. The acoustic-elasticity parameters of joint material was derived by ultrasonic inspection during loading experiment. Transverse and longitudinal residual stress was determined by precisely measuring of short-distance acoustic travel time. The ultrasonic measurement results was confirmed by H&K theory and XRD methods with good repeatability and reliability.

APA, Harvard, Vancouver, ISO, and other styles

41

Qi, Yan Xing. "Research of Ultrasonic Distance Measurement System Based on Pseudo Random Digital Correlation." Applied Mechanics and Materials 635-637 (September 2014): 733–37. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.733.

Full text

Abstract:

An ultrasonic distance measuring system is designed by using MC9S12DG128 microcomputer in this paper. To improve the measuring distance and accuracy, the ultrasonic signal can be modulated with pseudo random binary sequence, and time of flight (TOF) can be determined by calculating the cross-correlation function of the transmission signal and its echo signal. What’s more, the two-step correlation method is adopted in order to reduce the computational complexity. The experiments show that absolute error of the measuring equipment is less than 5 millimeter within the range of 1-5 meter.

APA, Harvard, Vancouver, ISO, and other styles

42

Gądek, Krzysztof, Marek Dudzik, and Anna Stręk. "A Novel Three-Head Ultrasonic System for Distance Measurements Based on the Correlation Method." Measurement Science Review 14, no. 6 (December 15, 2014): 331–36. http://dx.doi.org/10.2478/msr-2014-0045.

Full text

Abstract:

Abstract A novel double-emitter ultrasonic system for distance measurements based on the correlation method is presented. The proposed distance measurement method may be particularly useful in difficult conditions, e.g. for media parameters undergoing fast changes or in cases when obstacles and mechanical interference produce false reflections. The system is a development of a previously studied single-head idea. The present article covers a comparison of the two systems in terms of efficiency and precision. Experimental research described in this paper indicated that adding the second head improved the measurement exactness – standard deviation decreased by 40%. The correlation method is also described in detail, also giving the criterion for the quality of the measurement signal.

APA, Harvard, Vancouver, ISO, and other styles

43

Sansury, Hendryg. "Ultrasonic Sonar Object and Range Detection Measurement Display using HC-SR04 Sensor on Arduino ATMEGA 2560." ACMIT Proceedings 3, no. 1 (March 18, 2019): 49–55. http://dx.doi.org/10.33555/acmit.v3i1.26.

Full text

Abstract:

Ultrasonic sonar object and range detection measurement using Hc-sr04 display can be use in every application. Ultrasonic sonar popular to use due to low cost, availability, no radiation for human applied in more industry such as medicine, robotic, automation. Ultrasonic sensor is a measurement device that consist of two transducer one for transmitting an ultrasonic wave and the other for receiving the reflective wave. We use HC-SR04 ultrasonic sensor can detect lower range from 1cm to 2.5 meter with precession about 0.1 cm and frequency up to 40Khz. The target must be proper orientation and perpendicular to the direction propagation of pulse. The amplitude of receive signal decrease depend on the medium and the distance between transmitter and the target. The transmitter converts electrostatic energy from a vibrating membrane to an ultrasonic waveform whilst the receiver converts the reflected ultrasonic waveform back into electrical energy. This electrical energy combine with motor servo to see the angle of sweeping and ultrasonic waveform using arduino atmega 2560 then be interpreted by a computer display in two dimension for measurement angle and distance of object. Conversion between electrical energy to an ultrasonic waveform use electrostatic transducer or normally we call piezoelectric transducer .

APA, Harvard, Vancouver, ISO, and other styles

44

Kerbiriou, Christian, Yves Bas, Isabelle Le Viol, Romain Lorrillière, Justine Mougnot, and Jean-François Julien. "Bat Pass Duration Measurement: An Indirect Measure of Distance of Detection." Diversity 11, no. 3 (March 22, 2019): 47. http://dx.doi.org/10.3390/d11030047.

Full text

Abstract:

Few reports have been published on detection distances of bat calls because the evaluation of detection distance is complicated. Several of the approaches used to measure detection distances are based on the researcher’s experience and judgment. More recently, multiple microphones have been used to model flight path. In this study, the validity of a low-cost and simple detectability metric was tested. We hypothesize that the duration of an echolocating-bat-pass within the area of an ultrasonic bat detector is correlated with the distance of detection. Two independent datasets from a large-scale acoustic bat survey—a total of 25,786 bat-passes from 20 taxa (18 species and two genera)—were measured. We found a strong relationship between these measures of bat-pass duration and published detection distances. The advantages of bat-pass duration measures are that, for each study, experimenters easily produce their own proxy for the distance of detection. This indirect measure of the distance of detection could be mobilized to monitor the loss in microphone sensitivity used to monitor long-term population trends. Finally, the possibility of producing an index for distance of detection provides a weight for each bat species’ activity when they are aggregated to produce a bat community metric, such as the widely used “total activity”.

APA, Harvard, Vancouver, ISO, and other styles

45

Luo, Rui, and Zi Hong Zhang. "Design of Ultrasonic Ranging Circuit Based on STC Microcontroller." Advanced Materials Research 722 (July 2013): 59–63. http://dx.doi.org/10.4028/www.scientific.net/amr.722.59.

Full text

Abstract:

In this paper, based on the 18B20 temperature compensation circuit for ultrasonic ranging circuit, can eliminate the influence of environmental temperature on ultrasonic velocity, this paper introduced the ultrasonic ranging system, the system includes ultrasonic transmitting circuit, receiving circuit and display circuit, the results of the experiment show that, the system detection distance can be up to 12M, the error is in the allowable range, the range finder the system performance is stable, high measurement accuracy, distance, has a certain practicality and market promotion value.

APA, Harvard, Vancouver, ISO, and other styles

46

Knox, Jessica E., and Aaron R. Mittelstet. "Application of an Ultrasonic Sensor to Monitor Soil Erosion and Deposition." Transactions of the ASABE 64, no. 3 (2021): 963–74. http://dx.doi.org/10.13031/trans.14236.

Full text

Abstract:

HighlightsA sediment monitoring system was developed to measure erosion and deposition.The system uses an ultrasonic sensor to take high-frequency measurements.Tests in controlled lab settings showed high accuracy.The system measured 43.5 cm of deposition from two storm events.Abstract. Monitoring erosion at high temporal resolution can provide researchers and managers the data necessary to manage erosion. Current erosion monitoring methods tend to be invasive to the area of interest, record low-frequency measurements, have a narrow spatial range of measurement, or are expensive. There is a need for an affordable system capable of monitoring erosion and deposition non-invasively at high temporal resolution. The objectives of this research were to (1) design and construct a non-invasive sediment monitoring system (SMS) using an ultrasonic sensor capable of monitoring erosion and deposition continuously, (2) test the system in the lab and field, and (3) determine the applications and limitations of the system. The SMS was tested in the lab to determine the extent to which the soil type, slope, surface topography, change in distance, and vegetation impacted the measurements of the ultrasonic sensor. Soil type, slope, and surface topography had little effect on the measurement, but distance and the introduction of vegetation impacted the measurement. In the field during high flows, as erosion and deposition occurred, the changes in distance were determined in near real-time, allowing calculation of erosion and deposition quantities. The SMS was deployed to monitor deposition on sandy streambanks in the Nebraska Sandhills and erosion on a streambank and field plot in Lincoln, Nebraska. The SMS proved successful in measuring sediment change during high-flow events but yielded some error: ±1.06 mm in controlled lab settings and ±10.79 mm when subjected to environmental factors such as temperature, relative humidity, and wind. Keywords: Deposition, Erosion, Monitoring, Ultrasonic sensor.

APA, Harvard, Vancouver, ISO, and other styles

47

Wang, Ling. "Distance Measurement System of High Precision Ultrasonic Based on Data Fusion." Applied Mechanics and Materials 608-609 (October 2014): 880–84. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.880.

Full text

Abstract:

This paper presents a high accuracy ultrasonic ranging scheme based on MCU and puts forward a new method of multi sensor data fusion based on close degree and weight, finally get the expression of data fusion, so as to realize the multi sensors data fusion. The measuring range of this system is 3cm, range is 500cm, and the accuracy of measurement can reach 1mm. The work is stable in the measurement range 3cm-500cm that can meet the general requirements for measurement. The example analysis shows that the proposed method is more accurate than the traditional method, more suitable for the application and embedded system.

APA, Harvard, Vancouver, ISO, and other styles

48

SUZUKI, Akimasa, Taketoshi IYOTA, Shinya USAMI, and Kazuhiro WATANABE. "Realtime Correlation Calculation for Distance Measurement Using Spread Spectrum Ultrasonic Waves." Transactions of the Society of Instrument and Control Engineers 46, no. 7 (2010): 357–64. http://dx.doi.org/10.9746/sicetr.46.357.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Nasucha, M., Yohandri, J. T. S. Sumantyo, K. Hattori, and H. Kuze. "Computation calibration on distance measurement in an ultrasonic remote sensing device." Journal of Physics: Conference Series 1185 (April 2019): 012023. http://dx.doi.org/10.1088/1742-6596/1185/1/012023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

SASAKI, Kyuro, Hiroshi MIYAKOSHI, and Tadao IMAI. "Application of ultrasonic distance measurement to a manometer and its performance." Transactions of the Japan Society of Mechanical Engineers Series B 54, no. 505 (1988): 2478–83. http://dx.doi.org/10.1299/kikaib.54.2478.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!