Simulation Study of High-performance Pressure Sensor Based on Building Deformation Monitoring
In order to realize high-precision and real-time monitoring of building deformation,the embedded flexible miniature pressure sensor model is designed,and its sensing sensitivity and sensing pre-cision of building internal stress signal are gradually improved through structural optimization.COMSOL simulation software was used to construct the finite element model of the micro pressure sensor with PVDF piezoelectric materials.The device structure was improved by modifying the surface microstructure and pores in the sensor layer,so as to improve the strain capacity of the piezoelectric sensor.The results show that compared with traditional sensors with planar layer,the pressure sensing performance of the de-signed device has been greatly improved,in which the piezometric potential is increased by 490％,and the sensor sensitivity is increased by 676％.Finally,a pressure sensor array model is constructed,and the spa-tial resolution response to mechanical signals is improved by optimizing the structure of the sensor arrays,which is contribute to accurately detecting the explosion location and diffusion path of the stress in the building.
building deformation monitoringpressure sensorpiezoelectricfinite element simulationhigh sensitivity
万方数据
维普
