消磁电源误差信号采集与处理方法

为了解决传统仪器在消磁设备误差检测中存在着测试周期长,精度偏低,自动化程度不高等问题,结合消磁电源模块误差的来源和消磁电源模块的特性,研究了消磁电源模块静态特性、动态特性、瞬态特性的测试方法.同时对系统的自校正技术原理和算法进行了研究,提出了基于最小二乘法和实用滤波法的三段式的数据校准方法来消除系统误差,设计了差分放大电路来抑制零漂现象;基于虚拟仪器技术和Labview平台,根据所提出的测试方法和分析方法,成功实现了消磁电源模块误差测试系统.

Error Signal Acquisition and Processing Method Based on Degaussing Power

In order to solve the problems of low accuracy, long time for error testing and low automation when peple use traditional instruments to test the error of degaussing equipment. In this paper, the degaussing system error sources and characteristics of degaussing equipment are discussed. It analyzes the feasibility of a common error handling method such as the least squares method and practical filter analysis. Meanwhile it also researches the test methords about degaussing equipment static characteristics, dynamic characteristics, transient characteristics and normality characteri- stics. This paper studies the algorithms of the system self-correction technology, gives the three stages of data calibration method to eliminate the systematic errors, devises the differential amplifier circuit to suppress the zero-drift phenomenon, Based on virtual instrument technology and Labview platform, according to the proposed test methods and analytical methods, it gives a successful implementation of a degaussing power error testing system.