传感技术学报2018，Vol.31Issue(1)：68-73,6.DOI:10.3969/j.issn.1004-1699.2018.01.012
ADC参数对光栅莫尔信号细分影响研究
Study of the Influence of ADC Parameters on the Grating Moiré Signal Subdivision
摘要
Abstract
Moiré signal subdivision is a necessary part of the application of grating sensors,amplitude subdivision method is an important means to achieve Moiré signal subdivision. In order to reduce the impact of signal quality on the segmentation results,error compensation becomes an indispensable element in the process of subdivision. This paper studied the digital amplitude subdivision method,analyzed the influence of ADC parameters on the error com-pensation and subdivision effect of the grating Moiré signal,established the quantitative model of the DC compensa-tion,amplitude compensation and subdivision multiplier between ADC parameters and Moiré signal, designed and implemented DC and amplitude compensation experiment. The results showed that:the effects of different bit width ADCs on the error compensation and subdivision are different,and the ADC bit width should be increased by 1 bit to 2 bit on the basis of this model. The research results have certain guiding significance and reference value for the engineering realization of the Moiré signal digital amplitude segmentation subdivision system.关键词
光栅传感器/ADC/位宽/幅值分割/幅值误差/直流漂移Key words
grating sensor/ADC/code bit width/Amplitude segmentation/amplitude error/DC offset分类
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朱维斌,邢前进,叶树亮..ADC参数对光栅莫尔信号细分影响研究[J].传感技术学报,2018,31(1):68-73,6.基金项目
项目来源:2017年国家质量基础的共性技术研究与应用重点专项项目( 2017YFF0204900) （ 2017YFF0204900）
