基于自研A/D测量装置的实用测试方法设计OA

A/D measurement modules are widely used in power electronics systems.This paper presents a practical testing methodology based on a self-developed A/D measurement device.The method systematically covers static testing,dynamic testing,and environmental and reliability testing.In static testing,linear calibration is performed based on the least squares method,and by introducing a digital filtering algorithm,the variation pattern of sampling accuracy under different filter parameters is tested.Dynamic testing evaluates the response capability of the measurement device to time-varying signals.On this basis,environmental adaptability and reliability are further tested through temperature rise and long-term operation tests.Finally,the testing method is validated using a self-developed voltage measurement device.The results show that this testing method can comprehensively evaluate the performance of the measurement device,provide direct data support for performance optimization,and possesses high practicality and engineering value.