Strain Gage Sensors
University: University of California, Santa Barbara In this laboratory, students build an analog circuit that will enable them to use a strain gage to measure the deflection of a metal ruler. They then add a noninverting op-amp to amplify the voltage output from the circuit and an analog low-pass filter to remove voltage fluctuations caused by high-frequency noise. As an extra credit exercise, students may write a NI LabVIEW program to compute the power spectrum of the output from the strain gage circuit before and after the low-pass filter. |
