Design of a multi-bit quantization high-precision microaccelerometer system

In order to achieve a stable and high-precision micromechanical accelerometer system based on the system noise-shaping ability, a high precision accelerometer system with multi-bit quantization is proposed. A fourth-order multi-bit quantized micromechanical accelerometer topology is realized by appl...

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Main Authors: Wang Baosheng, Zhao Gangbin
Format: Article
Language:zho
Published: National Computer System Engineering Research Institute of China 2018-04-01
Series:Dianzi Jishu Yingyong
Subjects:
Online Access:http://www.chinaaet.com/article/3000080226
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author Wang Baosheng
Zhao Gangbin
author_facet Wang Baosheng
Zhao Gangbin
author_sort Wang Baosheng
collection DOAJ
description In order to achieve a stable and high-precision micromechanical accelerometer system based on the system noise-shaping ability, a high precision accelerometer system with multi-bit quantization is proposed. A fourth-order multi-bit quantized micromechanical accelerometer topology is realized by applying an electrostatic feedback linearization circuit. The average noise level of the accelerometer system is lower than -120 dB/√Hz. The sensitivity and the equivalent input acceleration noise are about 0.63 V/g and 4 μg/√Hz, respectively. The input range of the accelerometer system is about ±3 g, which is limited by the supply voltage and system sensitivity.
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spelling doaj.art-dbb8d39111364dbea7f8cd86dadc74802022-12-21T21:45:51ZzhoNational Computer System Engineering Research Institute of ChinaDianzi Jishu Yingyong0258-79982018-04-01444373910.16157/j.issn.0258-7998.1731913000080226Design of a multi-bit quantization high-precision microaccelerometer systemWang Baosheng0Zhao Gangbin1School of Computer and Information Engineering,Nanyang Institute of Technology,Nanyang 473000,ChinaSchool of Computer and Information Engineering,Nanyang Institute of Technology,Nanyang 473000,ChinaIn order to achieve a stable and high-precision micromechanical accelerometer system based on the system noise-shaping ability, a high precision accelerometer system with multi-bit quantization is proposed. A fourth-order multi-bit quantized micromechanical accelerometer topology is realized by applying an electrostatic feedback linearization circuit. The average noise level of the accelerometer system is lower than -120 dB/√Hz. The sensitivity and the equivalent input acceleration noise are about 0.63 V/g and 4 μg/√Hz, respectively. The input range of the accelerometer system is about ±3 g, which is limited by the supply voltage and system sensitivity.http://www.chinaaet.com/article/3000080226noise shapinghigh precisionaccelerometerlinearization
spellingShingle Wang Baosheng
Zhao Gangbin
Design of a multi-bit quantization high-precision microaccelerometer system
Dianzi Jishu Yingyong
noise shaping
high precision
accelerometer
linearization
title Design of a multi-bit quantization high-precision microaccelerometer system
title_full Design of a multi-bit quantization high-precision microaccelerometer system
title_fullStr Design of a multi-bit quantization high-precision microaccelerometer system
title_full_unstemmed Design of a multi-bit quantization high-precision microaccelerometer system
title_short Design of a multi-bit quantization high-precision microaccelerometer system
title_sort design of a multi bit quantization high precision microaccelerometer system
topic noise shaping
high precision
accelerometer
linearization
url http://www.chinaaet.com/article/3000080226
work_keys_str_mv AT wangbaosheng designofamultibitquantizationhighprecisionmicroaccelerometersystem
AT zhaogangbin designofamultibitquantizationhighprecisionmicroaccelerometersystem