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《Electronic Measurement Technology》 2007-09
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Application of formula node in the measurement of frequency characteristic

Liu Wangsuo Ji Shunxiang Chen Dong(Naval Univ.of Engineering,Wuhan 430033)  
Some methods on testing network frequency-characteristic based on virtual instrument is introduced.A swept instrument design including concrete technical solution,work flow for testing frequency characteristic on the circuit board on the basis of multi-step is developed as well.modularized instrument PXI-5412和PXI-6132 are chosen as the hardware basis while LabVIEW7 is the software plat for application program developing..Test results indicates that hardware resources can get full use by this swept instrument.It is capable of accurate frequency characteristic measurement for circuit with filter function,so it enhances the measurement ability and fulfilled different measurement needs with precise and reliable results.
【CateGory Index】: TN753.7;TP391.9
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