posted 05 April 1999 06:47 PM               

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Date: Thu, 4 Feb 1999 09:00:00 -0500
From: "Klouse Kenneth P."
To: Greg Gogates
Subject: RE: Re1: Stop Watch Cal (fwd)

Unless I'm missing something, anyone who spends more than 15 minutes calibrating a stop watch, or claims accuracies of .001%, better smell what their peddling, get a life, or start measuring the reflexes of the stop watch operators. I'm not saying that stop watches so not need to be calibrated, I'm saying that one should look at the accuracy needed for the measurement, and calibrate the instrument accordingly. As Jeff Gust so eloquently put it, " As you would note, the random error from the person dominates the uncertainty budget, and in fact is 41 times greater than that of the unit under test tolerances. " If that person hasn't had his coffee that morning or he didn't get enough sleep, his reaction time could be all over the map.

posted 05 April 1999 07:30 PM               

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Date: Sat, 20 Feb 1999 05:54:03 EST
From: [email protected]
To: [email protected]
Subject: Re: Linear Displacement Potentiometer

Pierre,

There are no American nor ISO standards for linear displacement potentiometers. There might me a military standard that I am not aware of.

A group was formed several yars ago to write a standard for linear transducers, and a draft was written; however, it was never finished nor published as a standard. A couple of years ago there was an attempt to revive the Group, but there appeared to be little interest or need for such a standard.

If a need can be shown to exist and someone is willing to put together a group to do the work, there is a procedure in place for producing the standard.