Research Status and Development Trend of Piezoelectric Accelerometer

Abstract

Piezoelectric accelerometers have been widely used because of their large range, simple structure, stable performance, and other advantages. With the improvement of science and technology, the application field is expanding, but there are still some problems in high-temperature environments and low-frequency vibration conditions. Under high-temperature environments, the piezoelectric material will undergo depolarization or resistance change, resulting in sensor failure. Aerospace instruments, water conservancy platforms, and other fields require high-precision instruments with vibration amplitudes of the order of a few microns in the range of 0.01–1 Hz, which require low-frequency and ultra-low-frequency sensors for the measurements. Therefore, how to increase the operating temperature and reduce the noise of piezoelectric accelerometers has become a problem that needs to be solved. This paper reviews the structure, principle, application range, and material selection of piezoelectric components of different types of piezoelectric accelerometers and summarizes the current problems and future research priorities.

The Impact of Vibrating Screen Startup Time on Vibration Amplitude and Energy Consumption in Transient State

“…Vibration measurements using this setup were carried out using a three-axis PCB (piezoelectric) accelerometer, which was mounted on the screen of the screener. Accelerometers have many advantages and are often used for precise vibration measurements and in machine diagnostics [27][28][29][30]. The signal from the sensor was recorded by a NI9232 data acquisition card housed in a CompactDAQ (National Instruments Corporation: Austin, Texas, USA) enclosure and then processed using custom software developed in the LabVIEW environment.…”

Comprehensive Noise Modeling of Piezoelectric Charge Accelerometer with Signal Conditioning Circuit

“…Piezoelectric charge accelerometers have extensively been utilized in vibration and shock measurements in industrial and scientific applications [1] since they offer wide bandwidth, broad temperature, dynamic range, high sensitivity, and linearity [2][3][4][5][6]. The applications include but are not limited to seismic monitoring, medical instrument installation, automobile vibration, machine monitoring, as well as high-temperature and high-radiation environments.…”