Precision measurement position in 1D

Projects General Guidance
1

I am trying to measure the position, in 1D, of a pin as it protrudes from a flat surface. The measurement needs to made as a function of time at a rate of 1 kHz and the total travel of the pin will not exceed 0.050 inches.

I need help finding an appropriate sensor, I have thought about using linear scales that are used in digital readout (DRO) systems but am not sure they are fast enough to achieve 1,000 readings a second.

In this case the pin is the firing pin of a rifle and the work is to try and identify factors that increase the precision of the rifle for accuracy competitions.

TIA for any help offered,
wade

2

Hi, @wwbrown

Can you please tell us what your project is?

Over what distance range are you aiming to measure?
Why such a fast update rate?

Thanks..Tom.. :smiley: :+1: :coffee: :australia:

3

What's the application?
I know SKF uses, self designed sensors measuring nanomemeters. Would not be too difficult to copy.

4

Consider high speed, short range laser distance sensors. One company's offerings. The AR200 looks appropriate.

5

If mechanical contact is allowed this link should help. Leader in Digital Electronic Indicators There are many different configurations etc available.

Try searching for "electronic surface gauge"

6

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