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Time Domain Based Capacitance Measurement

Author(s):

Dr. Nand Kumar Rana , J.N.College,Dhurwa,Ranchi

Keywords:

Radio Frequency (RF) Techniques, Time Domain based Capacitance Measurement

Abstract

A time domain based capacitance measurement is a method for wide range applications is presented in this paper. The measurements are based on analog capacitance to time converter circuit and a high precision time to digital converter technology. The method makes use of the time delay that occurs in charging a capacitor with a fixed voltage and a resistor. Due to its ratio metric nature, the measurement results are not affected by variation in the voltage source of the circuit. It also does not have a critical dependence on the probe length and the associated phase shift. The time-to-digital converter is so compact that it can be embedded in the probes itself. This greatly reduces the cost of measurement. This method is implemented using the commercially available time to digital converter and an analog circuit.

Other Details

Paper ID: IJSRDV4I100395
Published in: Volume : 4, Issue : 10
Publication Date: 01/01/2017
Page(s): 457-458

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