strain gauges?

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drone007
Posts: 5
Joined: Mon Mar 17, 2014 1:05 pm

strain gauges?

Post by drone007 » Tue Jan 27, 2015 10:53 am

I was surprised to see a lack of strain/torque gauges like those sold on digikey (http://www.digikey.com/product-detail/e ... ND/2503700) on Sparkfun. Admittedly, I'm a mechanical engineer and only a hobby level electrical tinkerer, so I'm not immediately aware of the tech challenges with designing these.

but none the less, there are really awesome applications for these and I would imagine there's a large market for sensors in the sub-$100 range (if it can be done!)

I guess most of (if not all) of these require amplifiers, but if the sensors themselves could be made cheaply, I think it would be popular.

D_Heidner
Posts: 9
Joined: Tue Oct 21, 2014 2:00 pm

Re: strain gauges?

Post by D_Heidner » Sat May 27, 2017 8:13 pm

The individual strain gauges are probably beyond most of the experimenters -- and they are pretty pricey compared to simply buying a completed load cell with a full bridge (4 strain gauges). But if you want - you can find the bare strain gauges on amazon for $3 to $6 1/4 bridge instead of the $60+ from digikey.

Sparkfun does have a load cell / measuring shield called "Openscale" available -- and it works with the load cells that Sparkfun and the other "maker like suppliers" offer up.

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