Measurement and Control Software Tools

Rensselaer Polytechnic Institute has developed what they call the mobile studio program

http://mobilestudio.rpi.edu/

It's a board and software combo. They've had several different versions of thehardware, the current board specs are:

• Blackfin Core
• 2-channel, 2MSPS per channel, 12-bit ADC
• 2 14-bit, 2MSPS per channel DACs (Function Generation/Arbitrary Wave Generation)
• USB 2.0 High-Speed (480Mbps)
• 16-channels of digital (3.3V) I/O
• 2 dedicated Pulse-Width Modulation (PWM) channels
• Expanded input voltage range
• 250kSPS Impedance Analyzer
• 2.5GHz, 1Mbps Wireless Transceiver

Whats also cool is that you can integrate the hardware into your own programs using the supplied COM interface

Hello Shyam,

We have recently been using Beckhoff equipment on a project where we had considered National Instruments and standard PLC equipment. We chose Beckhoff for a number of reasons in order to save money. It has been a very good decision.

Their website is simply www.beckhoff.com and they offer a wide range of products. I must say that I really like the ease of assembly and connection as well. Our task requires updating about 2000 inputs and outputs in under 250 microseconds. No problem with this hardware. I think they will re-define process control as we know it.

Regards,

These equipments are like integrated PLCs for industrial use and at less accuracy.

They have listed 16-bit ADC with only 0.3% accuracy which is like <9-bit accurate.

I have also looked at National Instruments 18-bit ADC which is claimed to be word's highest accuracy is only 0.01% or 1 in 10000 or about 13-bit accurate. I believe this is also statistical claim over 100 reading average.

Who else builds better systems in the world? Does any one ever claims to have error below 0.001% and has an accurate measurement system for 10V signal? This is just 10ppm measurement. People claim to have measured 0.1ppm absolute values of voltages. How accurate are they?