EMMC temp drift Was: Bipolar Coil
Subject: EMMC temp drift Was: Bipolar Coil
From: Terry Fritz <twftesla-at-uswest-dot-net>
Date: Sun, 26 Dec 1999 17:44:51 -0700
>I did a little experiment. I measured my EMMC at 27.7nF at the room
>temperature of 19.7 degrees C. Then I took it outside and let it cool down
>to arctic Colorado temperatures of 13.2C (it was 17C here on Christmas day,
>Santa needed a short sleeve shirt ;-)) The capacitance still measured
>27.7nF. I have it in the refrigerator now...
At 4.8 Degrees C, my EMMC cap measures 27.8nF. So that's very roughly
240ppm (0.024%) per degree C shift in value. The poly caps appear to be
very stable temperature wise...