A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide
Due to the increasing influence of human engineering activities, it is important to monitor the transient disturbance during the evolution process of landslide. For this purpose, a high-performance piezoelectric sensor is presented in this paper. To adapt the high static and dynamic stress environme...
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doaj-5cb04f0344254dc48f29ec280adabcc12020-11-25T01:41:36ZengMDPI AGSensors1424-82202017-02-0117239410.3390/s17020394s17020394A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of LandslideMing Li0Wei Cheng1Jiangpan Chen2Ruili Xie3Xiongfei Li4Institute of Solid Mechanics, Beihang University, Beijing 100191, ChinaInstitute of Solid Mechanics, Beihang University, Beijing 100191, ChinaInstitute of Solid Mechanics, Beihang University, Beijing 100191, ChinaInstitute of Solid Mechanics, Beihang University, Beijing 100191, ChinaInstitute of Solid Mechanics, Beihang University, Beijing 100191, ChinaDue to the increasing influence of human engineering activities, it is important to monitor the transient disturbance during the evolution process of landslide. For this purpose, a high-performance piezoelectric sensor is presented in this paper. To adapt the high static and dynamic stress environment in slope engineering, two key techniques, namely, the self-structure pressure distribution method (SSPDM) and the capacitive circuit voltage distribution method (CCVDM) are employed in the design of the sensor. The SSPDM can greatly improve the compressive capacity and the CCVDM can quantitatively decrease the high direct response voltage. Then, the calibration experiments are conducted via the independently invented static and transient mechanism since the conventional testing machines cannot match the calibration requirements. The sensitivity coefficient is obtained and the results reveal that the sensor has the characteristics of high compressive capacity, stable sensitivities under different static preload levels and wide-range dynamic measuring linearity. Finally, to reduce the measuring error caused by charge leakage of the piezoelectric element, a low-frequency correction method is proposed and experimental verified. Therefore, with the satisfactory static and dynamic properties and the improving low-frequency measuring reliability, the sensor can complement dynamic monitoring capability of the existing landslide monitoring and forecasting system.http://www.mdpi.com/1424-8220/17/2/394piezoelectric sensorcalibration experimentdynamic measurementlandslideslandslide monitoring and forecasting systemlow-frequency correction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ming Li Wei Cheng Jiangpan Chen Ruili Xie Xiongfei Li |
spellingShingle |
Ming Li Wei Cheng Jiangpan Chen Ruili Xie Xiongfei Li A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide Sensors piezoelectric sensor calibration experiment dynamic measurement landslides landslide monitoring and forecasting system low-frequency correction |
author_facet |
Ming Li Wei Cheng Jiangpan Chen Ruili Xie Xiongfei Li |
author_sort |
Ming Li |
title |
A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide |
title_short |
A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide |
title_full |
A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide |
title_fullStr |
A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide |
title_full_unstemmed |
A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide |
title_sort |
high performance piezoelectric sensor for dynamic force monitoring of landslide |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2017-02-01 |
description |
Due to the increasing influence of human engineering activities, it is important to monitor the transient disturbance during the evolution process of landslide. For this purpose, a high-performance piezoelectric sensor is presented in this paper. To adapt the high static and dynamic stress environment in slope engineering, two key techniques, namely, the self-structure pressure distribution method (SSPDM) and the capacitive circuit voltage distribution method (CCVDM) are employed in the design of the sensor. The SSPDM can greatly improve the compressive capacity and the CCVDM can quantitatively decrease the high direct response voltage. Then, the calibration experiments are conducted via the independently invented static and transient mechanism since the conventional testing machines cannot match the calibration requirements. The sensitivity coefficient is obtained and the results reveal that the sensor has the characteristics of high compressive capacity, stable sensitivities under different static preload levels and wide-range dynamic measuring linearity. Finally, to reduce the measuring error caused by charge leakage of the piezoelectric element, a low-frequency correction method is proposed and experimental verified. Therefore, with the satisfactory static and dynamic properties and the improving low-frequency measuring reliability, the sensor can complement dynamic monitoring capability of the existing landslide monitoring and forecasting system. |
topic |
piezoelectric sensor calibration experiment dynamic measurement landslides landslide monitoring and forecasting system low-frequency correction |
url |
http://www.mdpi.com/1424-8220/17/2/394 |
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