Can someone give some specific examples of what sort of facilities use this service?
I worked at Thomson Marconi Sonar, and we were actually the very first customer to request the old calibration container back in the late 90's.
We had countless very expensive machines used in "production" that had to get calibrated. And of course the military take their calibration very seriously.
I use quote marks for production, because production for us could be anywhere from
one $20M sonar system unit a year to five $40K oil survey streamers per day.
Sending your gear away for cal meant weeks of down time. With this, I could unbolt the gear from the test rack, walk down the back of the building, and have it calibrated in a few hours. If I was lucky, that would happen during lunch break.
Dave.