Abstract
This paper introduces a novel approach to the detection and accurate measurement of extremely small signals, produced by bilayer thin films without the use of sophisticated hardware. The implementation of this measuring system is based on the LabVIEW graphical programming. This general purpose, robust and low-cost signal detector, provides an excellent way to evaluate magnetostrictive materials and their application in magnetic sensors. Initially the complete system was first simulated in LabVIEW software with the simulated signal superimposed with noise signals and the correct performance of the program was successfully confirmed. Later the software was incorporated together with the simple modulating circuit of the sensor. The results from the acquisition proved that the system provides a quick and excellent way to evaluate magnetostrictive materials and their application in magnetic sensors.
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