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Seeking guidance for using a strain sensor


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#1 cadcoke5

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Posted 03 June 2015 - 04:10 PM

I am on a project, where an engineer wants me to use a strain gauge.  This is the type of sensor described in this article;

http://www.allaboutc.../strain-gauges/

 

I understand what a Wheatstone Bride is and how it is used for a strain sensor.  However, I have never used this sort of thing in a practical application.

 

While I have yet to really make a sensor selection, here is one I have started looking into,

The Omni brand SGT-1/350-TY11

http://www.omega.com...T_UNIAXIAL.html

 

Is there any guidance for interfacing a strain sensor like this with the Lab Jack?

 

Thank you for any advice,

-Joe



#2 LabJack Support

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Posted 04 June 2015 - 01:43 PM

First you have to make a bridge.  If you use just 1 active strain gage, you wire it to 3 dummy gages or 3 resistors to make a quarter bridge.  The best solution is often to use 4 active strain gages on your test specimen and wire them into a full bridge.

 

Once you have a bridge, see forum topic #4376, and in particular post #13 of that topic which is a tutorial for the U6/T7:

 

https://forums.labja...?showtopic=4376



#3 cadcoke5

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Posted 06 June 2015 - 10:23 AM

Thank you for your help.

 

-Joe




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