A Design of Miniaturized High Performance Charge Amplifier

Li Li; Jia Lin Zhu; Xiao Qiong Zhang; Jun Kang; Peng Sheng Xie; Qiu Yang Li

doi:10.4028/www.scientific.net/AMM.487.435

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 487A Design of Miniaturized High Performance Charge...

A Design of Miniaturized High Performance Charge Amplifier

Abstract:

Charge amplifier is the key component in the pre-processing circuit of the sensors. With the development of the sensor technology, the charge amplifier on the market has not been able to meet the requirement of the actual measurement. In this paper, a LF356-based charge amplifier is suitable for the conversion circuit of the polyvinylidene fluoride (PVDF) piezoelectric sensor, duing to its small volume, low power consumption and strong anti-interference. The fesibility and reliability of the charge amplifier are verified by simulating the circuit with Multisim10 and testing the hardware circuit. This charge amplifier achieves a volume of 19.32 cm³ and a bandwidth between 20kHz and 150kHz at a power consumption of 1 mW. Performance of this charge amplifier is investigated when it is connected to a standrad signal source, achieving a gain of 10 times.

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Periodical:

Applied Mechanics and Materials (Volume 487)

Pages:

435-439

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.487.435

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Online since:

January 2014

Authors:

Li Li*, Jia Lin Zhu, Xiao Qiong Zhang, Jun Kang, Peng Sheng Xie, Qiu Yang Li

Keywords:

Charge Amplifier, High Performance, LF356N, Low-Comsumption, Multisim10, Small Volume

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