Development of a Sandwiched Piezoelectric Accelerometer for Low-Frequency and Wide-Band Seismic Exploration
Hengguang Shen1,2, Zhaolin Zhu1, Haotian Lu1
1Hainan Institute of Zhejiang University, Sanya 572025, China.
Sensors (Basel, Switzerland)
|November 25, 2023
Abstract:
A sandwiched piezoelectric accelerometer is developed and optimized for acquiring low-frequency, wide-band seismic data. The proposed accelerometer addresses the challenges of capturing seismic signals in the low-frequency range while maintaining a broad frequency response through the design of multi-stage charge amplifiers and a sandwiched structure. The device's design, fabrication process, and performance evaluation are discussed in detail. Experimental results demonstrate its performance in amplitude and phase response characteristics.
