How do I set strain gauge resistance on 9237

[hygeia44]

Does any body know how to find this file http://www.ni.com/pdf/manuals/374186b.pdf

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Yi Y wrote:
Hi Rex1030,
You can find more information regarding shunt calibration and strain guage resistance in the manual http://www.ni.com/pdf/manuals/374186b.pdf, please go through page 10-14.  More information about the calibration procedure can be found here. http://www.ni.com/pdf/manuals/372251a.pdf The strain gauge resistance is set by using the known resistance value during calibration. Hope this helps!

Yi Y.
Applications Engineer
National Instruments
http://www.ni.com/support

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[speleato]

It appears the version has bumped, try

http://www.ni.com/pdf/manuals/374186c.pdf

[hygeia44]

Thank you!

[Abautomotive]

Hi,

I have to find out the strain in a motor stand where i will be attaching a student gauge ( gauge factor 2.1) . The DAQ system that i will be using is a  NI PXI-1042Q and the strain module is NI 9237. I have also decided to go for a full bridge connection. but, I need a help in the following topics.

1) procedure for Calibration ( shunt or by adding weights)  - which one is easy and good

2)Getting out the values through LABVIEW code

Pl, help me ASAP. I am trying my best to find out but there isn't enough time. Awaitng fr ur kind replies.

[Brian_P]

Abautomitive,

Thank you for using the forums.  It sounds like you want to create a custom scale.  With this you can map output voltages to a known strain or force.  You can create a custom scale by following this knowledgebase article.  The way that you can input this and read the values out of LabVIEW is by dragging the custom scale into your LabVIEW code and connect it as shown in this example.  Another way you can create a custom scale, is in the DAQ Assistant, go to Scale and choose custom scale.

I hope this helps,

Brian P.

[Abautomotive]

Hi,

I am having a 58BA Shaft Encoder ( rotary incremental shaft encoder) and a NI SCB 68 .The NI SCB 68 is a connector block which allows digital inputs and outputs to and from the PXI 7813R DIO Card. This will be used to connect the shaft encoder wires to the datalogging equipment.

Please clarify my following doubts:

1) How to wire the Shaft encoder to the NI SCB 68

2) How to get the values from the shaft encoder. Please send me some examples if u have got it.

Thanks in advance. Awaiting your response.

[Abautomotive]

Thanks brian,

I will go through it and will come up with a query, if i encounter one............ thanks for your help.