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-   -   Load cell source (http://www.chiefdelphi.com/forums/showthread.php?t=124377)

DweebsUnited 09-01-2014 16:51

Load cell source
 
Hey all,

As part of our strategy this year we would like to be able to reliably measure the tension in a length of surgical tubing. We know that Bomb Squad was able to do this very successfully using a load cell.

What good sources are there for load cells? We would like to keep the cost reasonable, as most of the units we have found so far are more than 500-600 dollars. Is it even reasonable to find one less that that, or is that a typical price range?

Thanks for any and all help, see you on the fields!

Eric "Ozzy" Osburn

DweebsUnited 11-01-2014 12:22

Re: Load cell source
 
So after a bit more searching, we got really lucky.

http://www.digikey.com/product-searc...1966743?k=fc23

The FC23xx line of compression sensors linked here is reasonably priced enough to be useful. Keep in mind, to use these you will need an Instrumentation Amplifier to get it to a readable voltage.

The tutorial found here:
http://edg.uchicago.edu/tutorials/load_cell/

explains it pretty simply. Just imagine a cRio instead of an Arduino. It even links to a nice instrumentation amp, also available on digikey!

Good luck to you all! See you on the fields.

Gdeaver 15-01-2014 23:11

Re: Load cell source
 
Search digi key and you will find a amplified and conditioned version rated at 100lbs.


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