物联网技术2012，Vol.2Issue(5)：39-42,4.
基于虚拟仪器的功放参数测试仪设计
Design of power amplifier tester based on virtual instrument
贾艳丽1
作者信息
- 1. 淮安信息职业技术学院,江苏淮安223003
- 折叠
摘要
Abstract
Functions of power amplifier PCBs should be tested when PCBs are assembled in the process of production. When signal stimulation and load are separately added to the input and output terminals in PCB, electric parameters are measured to estimate whether the parameters are in normal ranges. Based on the virtual instrument technology platform of LabVIEW, a test system of power amplifier is designed with high-performance multi-function data acquisition cards in the paper. The test system could measure parameters like maximum output voltage with no distortion, total harmonic distortion, lower cut-off frequency and so on. Finally, experiments are implemented to test an audio amplifier with satisfied results.关键词
虚拟仪器/LabVIEW/音频功放/NI/9263板卡/9221/板卡Key words
virtual instrument/LabVIEW/audio amplifier/NI 9263 card/NI 9221 card分类
信息技术与安全科学引用本文复制引用
贾艳丽..基于虚拟仪器的功放参数测试仪设计[J].物联网技术,2012,2(5):39-42,4.
