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Unread 12-04-2010, 01:34
jhersh jhersh is offline
National Instruments
AKA: Joe Hershberger
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Re: How Precise and Accurate is the Analog In on the Crio?

Quote:
Originally Posted by boomergeek View Post
Team 241 is also curious about strain gauges- We can across nerdkits solution to the problem- http://www.youtube.com/watch?v=fPzUtzFJFus

We were thinking of adding a nerdkit to produce a USB weight/torque reading.

Any experts have any thoughts using nerdkits in combination with the cRio?
Looks interesting. You can implement the same thing they did on the robot using the cRIO's I/O. You still need the instrumentation amp. They used 2 digital outputs for the excitation voltage and 1 analog input for the measurement. You can use the outputs on the 9403 and the analog inputs on the 9201. Then use a similar algorithm in your robot code. You don't need the nerdkits micro, though that should be possible as well.

-Joe
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