capacitance measurement

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  1. lygion

    How do you reduce the capacitance of a thin copper tube antenna without reducing its size

    Hi all :) I have a straight piece of 3/4 inch (~10mm) diameter copper tubing that is around 40cm long. It’s being used as an antenna as part of a Theremin circuit I’m building; essentially this means that this copper antenna is acting as a capacitor to ground, and has its own (tiny) capacitance...
  2. J

    Measuring amplified capacitance

    Hi all, For a project I need to build a capacitor amplifier, with current boosting, so that rather large currents can flow without the OPAMPS saturating, as the resistance of the circuit is rather low normally, around a few Ohms. The measuring circuit is the following: The R13 resistor is in...
  3. Prasanna K Routray

    Differential CBCM circuit with a voltage output and current-voltage mirrors

    I found this circuit below from a research paper and been trying to simulate it without success. The circuit is about measuring capacitance values of the Femto range. Please give your suggestion so that I will be able to measure the capacitance of a very small value.
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