Let's face it: Unless your measurement instruments get regular calibration, the measurements they make will become meaningless. Calibration keeps your equipment running within tolerance. It's an in-depth field, deep enough to support two conferences in the US every year. The Measurement Science Conference takes place in late winter, always in Southern California. The NCSLI Workshop and Symposium moves around every year, but always takes place during the summer. I've been to both many times.
Metrology -- no, not meteorology -- is the science of measurement. Yes, there is science behind your measurements, starting with measurement units. There are only seven basic units of measurement, one of which is electrical current. All other units are derived from those basic units.
The questions in this week's quiz come from a collection of articles on calibration and metrology. Each answer has a link to the source article.
Good luck. May the current flow favorably -- without too much resistance or you'll drop too much voltage along the way. Answers are, as always, on the last page.
1. A Josephson Junction produces a voltage that's proportional to:
- Light intensity
- Linear distance
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