Can voltage and current values be captured and logged in labview?

[atlbraves49]

I'll describe our current set up:

http://img152.imageshack.us/img152/195/simplepicturegv9.th.jpg

We have energy being drawn from a thermoelectric module, to a resistor (just dumping it). We are acquiring the temperatures across the thermoelectric module, into labview, using thermocouples, but right now, current and voltage measurements are being done manually (using a voltmeter). Is there a product that allows you to acquire current/voltage data and send it to labview? Anything you can recommend for this current set up?

 

[berkeman]

Check out the data aquisition modules from companies like National Instruments. Their USB-based data acq modules are especially handy. For current acquisition, you'll probably need to put in a shunt (low value) resistor, and do a differential voltage measurement across the shunt.

BTW, most of NI's data acq modules are built into LabView as drag-and-drop objects, IIRC.

 

[oswaler]

Yes, voltage and current values can be captured and logged in LabVIEW. In fact, LabVIEW has built-in functionality for acquiring and logging data from various sensors and instruments, including voltage and current sensors.

To acquire voltage and current data in LabVIEW, you will need to use a data acquisition (DAQ) device. There are many different types of DAQ devices available, so it is important to choose one that is compatible with your current set up and meets your specific needs.

For your current set up, I would recommend using a DAQ device that has analog input channels for measuring voltage and current, as well as digital input channels for measuring temperature using thermocouples. You can then use LabVIEW to configure and control the DAQ device and log the data in real-time.

Some examples of DAQ devices that may be suitable for your set up include the NI USB-6000 series and the NI PCIe-6361. However, it is important to carefully research and select a DAQ device that meets your specific requirements.

I hope this helps and good luck with your experiments!