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You are here: Experts > Computing/Technology > Job Searching: Technical > Electrical Engineering > Analog To Digital Conversion
Expert: Dave Nyce - 10/22/2009
Question
Our company uses a tension and distance monitoring system on winch systems. Our tension measurement devices give us a 4 to 20 ma signal and the distance measurement devices give us voltage pulses at each increment of 0.1 ft. We wish to digitalize these signals and input them to a Mac via the USB port. We are looking for accuracy levels of +/- 1% or better reading the 4 to 20 signal. Can you recommend a suitable supplier of the analog to digital converter. I realize we will also need software prepared to utilize the digital signal.
Answer
There are several modules on the market for converting a 4 to 20 mA input signal to digital data output on a USB port. One is:
http://www.robertoweninc.com/products/hardware/conversion/usb/a-d/current/roi-us...
Action Pak company also makes one, and there are others.
Hope this helps!
Dave
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