03-09-2004 04:45 PM
03-09-2004 06:19 PM
07-22-2006 06:49 PM
07-24-2006 02:13 PM
Hello Kay Kay,
What type of low power measurement are you looking to achieve (i.e. voltage, current, temperature, pressure)? There are many reasons why you can have a noisy signal and signal conditioning may or may not be the answer for you.
There is a lot of useful information on techniques for minimizing noise in the Field Wiring guide.
Signal conditioning offers a few different techniques for improving signal quality including amplification and filtering. There are many resources available to learn about using signal conditioning for different applications including the following: Improved Signal Quality via Conditioning and Increase Your Measurement Accuracy by 10X with Signal Conditioning.
Hope this is helpful.
Regards,
Jennifer O.
07-24-2006 06:45 PM
07-25-2006 12:59 PM
To measure your current consumption I assume you are using differential mode and measuring voltage through a known high-precision resistor. Is this correct? If you could be more specific as to the nature of the signal that you are trying to measure (voltage level) and any problems you are having in doing so, I could provide you with suggestions to improve your measurement.
You may also wish to work with the Accuracy Calculator to determine the absolute accuracy of your board. You can also select Signal Conditioning products to determine how and if they will improve this accuracy.
Regards,
Jennifer O.
08-01-2006 02:07 PM - edited 08-01-2006 02:07 PM
Message Edited by Kay Kay on 08-01-2006 11:08 AM
08-02-2006 03:02 PM
01-04-2008 02:08 PM
Garrett, I need some help on a similar problem. How do I set the input level? I went into max, but am only able to view the settings and not able to change them. I am using MAX v3.1.1.3004
01-07-2008 01:41 PM
Hi arbit,
In the future, you might get more/faster responses if you create your question in a new thread, rather than tagging it to the bottom of one that’s been inactive for several months.
When you create a temperature task (In MAX under Data Neighborhood » NI-DAQmx Tasks, right-click and select Create New NI-DAQmx Task…) you should be able to select the input range, thermocouple type, etc.
If this is not working for you, will you please be more specific as to what you’ve tried and possibly include results with screenshots, specific error message, etc.?