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Re: MMC dissipation factor measurement
Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
Tesla list wrote:
> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> Could one measure dissipation with a calorimeter?
> That is, put a known RF power through the cap, which would be immersed in a
> well stirred oil bath in a vacuum bottle (thermos) (or even a suitable
> styrofoam container might work). You'd measure, accurately, the
> temperature over time.
This is a time-honored way of measuring power and hence dissipation
with a known excitation. HP used to build a very accurate RF power
meter based on the calorimetric principle. All I can remember after
almost 40 years is that it used flowing oil to cool a precision load.