[ProAudio] Microphones question
jim at audiosystemsgroup.com
Fri Jun 11 13:57:01 PDT 2021
On 6/11/2021 1:46 PM, Bill Whitlock via ProAudio wrote:
> If you have access to an LCR impedance bridge, it can resolve the
> impedance into resistive and inductive reactance components - a much
> quicker process.
Yes, and nearly 40 years ago, we were getting complex impedance data
from TEF sweeps, with a suitably high value resistor in series with the
sweep. The method would also work with dual channel FFT. I've used the
same technique with a Vector Network Analyzer at RF to measure the
common mode impedance of chokes to suppress common mode current on
antenna feedlines and to suppress RFI to/from consumer products and in
my ham station.
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