we used it to measure the deflection of the beams, it measures tiny distances. (the dial thing)
totally forgot to write down the name
we used it to measure the deflection of the beams, it measures tiny distances. (the dial thing)
totally forgot to write down the name
A really big calliper?
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Things have moved on since I first joined...
micrometer?
What we share with everyone is glum, and dark...
strain gauge?
that is definately one sort of micrometer marcus... but not to sure whether the top one is! could well be tho
We call these micrometers
to me your one looks like something for checking ovality or a kind of caliper![]()
interferometer? The one where you split a beam, and vary the distance one travels and then look to see if the 2 beams join back up and create coherent or decoheret interference. Knowing that each time you go from coherent - coherent you have changed the path length of the beam by lamda.
Used to measure tiny tiny distances, on the scale of nm.
Last edited by Lee`; 12-01-2007 at 07:19 PM.
Marcos. The name for the dialed tool is a DTI (Dial Test Indicator) I've used one to put on a shaft as it is spinning on a lathe to see if it is running true.
http://en.wikipedia.org/wiki/Dial_indicator
Hope this helps.
Dan
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I didn't learn much from my engineering course (which is why I got booted out) but I do know that a strain guage is a strip of metal that's glued onto the component under strain- as it's stretched its resistance changes, allowing you to measure the amount of strain the component it under. That is not a strain gauge.
http://en.wikipedia.org/wiki/Strain_gauge
I always just called those things dial gauges, although I daresay DannagE has it right.
There was one of these appear at work the other day for checking a rotor on a motor. I'll grab the box if its still there, but I am pretty sure its a DTI
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When I was working, I sold load cells, lumps of steel with SGs fitted for measuring force or load.
I also sold LVDTs, or displacement transducers, for measuring distance. The DTI usually measures distance, but can be used to measure force too - the two items are similar in principle, but totally different in the actual way they are constructed.
http://www.rdpe.com/uk/men-hiw.htm
has a lot of useful info on load and displacement (one of my old companies)
More at my last firms site :
http://www.novatechuk.demon.co.uk/e000.html
(I wrote some of those)
hth
usually used for bling purposes..
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Its a deflectabeamamommeter![]()
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