Next Article in Journal
Nanomaterials for the Selective Detection of Hydrogen Sulfide in Air
Previous Article in Journal
A Delay-Aware and Reliable Data Aggregation for Cyber-Physical Sensing
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(2), 394; doi:10.3390/s17020394

A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide

Institute of Solid Mechanics, Beihang University, Beijing 100191, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Seung-Bok Choi
Received: 11 January 2017 / Revised: 13 February 2017 / Accepted: 13 February 2017 / Published: 17 February 2017
(This article belongs to the Section Physical Sensors)

Abstract

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. View Full-Text
Keywords: piezoelectric sensor; calibration experiment; dynamic measurement; landslides; landslide monitoring and forecasting system; low-frequency correction piezoelectric sensor; calibration experiment; dynamic measurement; landslides; landslide monitoring and forecasting system; low-frequency correction
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Li, M.; Cheng, W.; Chen, J.; Xie, R.; Li, X. A High Performance Piezoelectric Sensor for Dynamic Force Monitoring of Landslide. Sensors 2017, 17, 394.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top