Search for example (DMS-measurement) with DAQPAD6020E SC2043SG on Windows98 with LV6i

[Spy]

I need a simple example for a measurment with DMS (120Ohm resistor with full-bridge
connection)
with
- DAQPad-6020E (USB)
- SC-2043-SG
- Labview 6i
- Windows98

How can I configure the gain without "Measurement&Automation"Explorer
or how can I get the actuell value of gain-faktor

thanks for an answer

[Nick-W]

Stefen,
You can use any analog input example, as the channels are mapped directly to your AI channels on your 6020E.
To set a gain in LabVIEW, use the Input Limits parameter on AI Config.vi. Set the input limits to the smallest actual voltage range you expect from your strain gauge. NI-DAQ will set the highest possible gain to give you the best resolution.
To see the total gain applied to your signal (10 from SC-2043 * DAQ board gain), you can make a call to AI Hardware Config.vi and look at the Group Channel Settings output (see attached vi). (This low level vi is also buried inside AI Config.vi.)
Be sure to configure your board to have the SC-2043-SG in MAX, so that NI-DAQ will interpret in incoming signals correctly.

Nick Wilson
Application Engineer
Nation
al Instruments
www.ni.com/ask

[Ronald]

I don't know if you want to use for instance something like ai-single-point
or similar vi's but one of the inputs gives you the ability to set the 'high
limit' Set it to the maximum expected value and look what happens: You
DAQPad is automatically configured to the best possible gain.

Hope this helps.

If this message isn't clear enough, I can send you an example of how I would
approach this problem.


Ron@ld

Stefan Buchwald schreef in berichtnieuws
3a799049@newsgroups.ni.com...
>
> I need a simple example for a measurment with DMS (120Ohm resistor with
full-bridge
> connection)
> with
> - DAQPad-6020E (USB)
> - SC-2043-SG
> - Labview 6i
> - Windows98
>
> How can I configure the gain without "Measurement&Automation"Explore
r
> or how can I get the actuell value of gain-faktor
>
> thanks for an answer
>
>