Re: MMC dissipation factor measurement

["Tesla list" <tesla-at-pupman-dot-com>]

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>"
<jimlux-at-earthlink-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.

Ed