Analog Circuit Parameters Measurement System Based on Multiplier

Abstract:

For the more complicated principles and the lower accuracy for the existing methods of the measurement of the analog circuit parameters, the paper constructs a measurement system for the analog circuits parameters based on the multiplier. The signal source generates two orthogonal sinusoidal analog signals with same frequency, and then one of the signals goes through the analog circuits. Then the multiplication and filtering are completed with the two DC signals. At last the phase and amplitude of the analog circuit are obtained through the DAQ and LabVIEW software. The amplitude and phase errors are less than 3%. The results show that the system has simple circuit, fast speed and high accuracy. So it is a feasible plan for the measurement system of the analog circuit parameters at present.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 3041-3044
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.3041
• Online since: July 2014
• Authors: Yong Xi Wang*, Mei Hu
• Keywords: Analog Circuit Parameters, High Accuracy, Measurement System, Multiplier

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