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Topic Title: Accelerometer used as a trigger
Topic Summary: Accelerometer used as a trigger
Created On: 11 January 2014 09:07 PM
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 11 January 2014 09:07 PM
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Joined: 11 January 2014

Hello, I'm new here. I have a degree in Mechanical engineering and in Civil engineering. I currently work with CNC machines. Electrical work is not my strong suit. I'm working on a project where i need a trigger set off on my laptop every time a machine stops moving for testing purposes. I was thinking of using a accelerometer. My requirements are:

-small in size
-be able to see movement of atleast 1 mm

Currently Im using a wireless mouse to trigger it by hand everytime i see the machine stop. The machine moves in the linear x,y, and z direction. I was thinking of already taking a mouse a part and connecting the accelerometer to the mouse button and have it trigger everytime it stops.

Any help would be greatful.
 12 January 2014 05:56 PM
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Joined: 15 April 2013

I feel that maybe you are thinking too much complication?

Every time an iron or steel component passes a small coil or magnetic pick-up it will generate a pulse; with the m/c continuously in motion you will receive a string of pulses. A simple detector will tell whether the m/c is operating or stopped.Even a small mechanical relay would reliably trigger your laptop.

Ken Green
 12 January 2014 06:39 PM
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Joined: 14 September 2010

You can pick up MEMS gyro-accelerometer for a few quid of ebay.

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