The testers should have enough information (they say they have this, and have used it in their report) to resolve the issue of required change in resistance.
Facts are always better than speculation, which can lead down many a blind alley.
The testers should have enough information (they say they have this, and have used it in their report) to resolve the issue of required change in resistance.
Facts are always better than speculation, which can lead down many a blind alley.
@Alain
The "real issue" is lack of good experimental design and in particular, absence of calibration over the full operating range. For a correct design which could have tested the hot cat properly, please see this paper by Giancarlo (Google translate works well on it for English):