Re: Calibration of Calipers, Mikes, Height gauges - Recommended Gage Block Types
I consider myself less than a novice on the subject of calibration so please consider the source of these questions.
I had been under the impression that calibration meant verifying that an instrument was capable of making measurements with its advertised "accuracy" and that any adjustments determined to be needed during the calibration process indicated that the instrument was out of calibration. Did I get that wrong?
Also, I had been using the term verification as being synonomous with checking an instrument against, e.g., a calibrated gauge(s), to ensure its continued accuracy. Admittedly, I was never quite certain that this act wasn't calibration, too, except that it might be done on an ad hoc basis prior to using an instrument and perhaps was not recorded. How far off am I on this one?
My clients tend to be very, very small, machine shops (less than 15 employees in many cases) and - not surpisingly - do calibration only when someone forces them to and, even then, don't want to send instruments out for calibration because they have no backup, don't want to hire a traveling calibration service to do it on site because of the cost, and on it goes. So here's my final question, are you able to recommend a calibration primer: book, video, website or the like that will educate them on what to do and how to do it themselves at an affordable cost?