A Cement Based Piezoelectric Composite Sensorfor Health Monitoring of Civil Engineering Structure

Abstract

A cement based piezoelectric composite sensor using 1-3 cement based piezoelectric composite as sensing element was fabricated. The basic properties of the sensor were mainly investigated. The results indicate that in the frequency range from 0.1 to 40 Hz, the output voltage amplitudes of the sensor increase nonlinearly with increasing frequency of input load under 10 Hz. When the frequency of input load is larger than about 10 Hz, the output voltage amplitudes of the sensor is nearly independent of frequency. There exists an obviously linear relationship between the output voltage amplitude of the sensor and input load amplitude. The output voltage of the sensor is correspond to the complex load very well. The phase difference between the output voltage of the sensor and input load is near zero. Therefore such sensors have a good potential to be used in civil engineering structural health monitoring.

Design and implementation of uniform light guide based, force and de-flection measurement device

“…The radar operated a continuous-wave stepfrequency in Ku-band, and the base-band signal is generated by direct digital synthesis [11]. 2) A cement based piezoelectric composite sensor using 1-3 cement based piezoelectric composite as sensing element [12]. 3) Structure monitoring using image stations.…”

Research on a 0–3 cement-based piezoelectric sensor with excellent mechanical–electrical response and good durability

“…However, in recent years, the problem of overloading has become more and more serious, which has a negative effect on personal safety and the service life of the highway. Therefore, it is necessary to carry out health monitoring of civil engineering structures and vehicle weight monitoring in real time to improve the traffic effectively (Hou et al 2012, Dong et al 2011, Huang et al 2011. Weigh in motion (WIM) has significant advantages in the management of overloading and the implementation of a charging system, which has drawn great attention from foreign and domestic scholars.…”