A SIMPLE METHOD FOR MANGANIN PIEZORESISTANCE MEASUREMENT
Wang Xiang; Wang Yuanjun; Fu Qiuwei; Wang Wei (Laboratory for Shock Wave and Detonation Physics Research,Institute of Fluid Physics, CAEP, P. O. Box 523, Chengdu 610003)
A method for manganin piezoresistance measurement that uses a d. c. power supply is described. This technique is very simple and easy to match. Compared with the conventional technique which uses pulse power supply, it not only omits the trigger system, but also can reduce the electromagnetic disturbance which is caused by the magnetic field derived from the current traversing in the gauge, because the current flowing over the gauge is very weak(about 20mA). Furthermore, the technique is also a low cost method for dynamic pressure measurement.
【CateGory Index】： TM930.116