Principle of Producing Wideband Orthogonal Signal Using MAX038 and Its Application in the Intelligent EDDY Current Instrument

摘要：

During the study of new-generation intelligent eddy current non-destructive detector,two pieces of MAX038 are used to produce programmable wide-band orthogonal signal,which preferably solves the universal problems of generation of the signal source and the reference source in the correlative detection circuit.By use of MAX038,circuit structure of eddy current detector is simplified very much,control performance is good,and the bottleneck problem in correlation detection circuits is solved. The response of PSD to the odd harmonic frequency is eliminated,which improves the measurement accuracy.It can be expected that traditional detector will be completely replaced by intelligent eddy current non-destructive detector.

关键词： MAX038 Programmable Wide-band Orthogonal Signal Correlative Detection

作者: Liu Guofu Zhang Qi Liu Bo Zhou Tingting

作者单位: Department of Instrument Science and Technology National University of Defense Technology Changsha,410073 China

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）