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NI 9237 and torque gauge

Hello,

 

I'm using an NI 9237 connected to computer with cDAQ9171 USB. I connect my torque gauge (Lorenz D-2553) on NI 9949 (wiring in attachment).

I'm using  the example : Bridge - Continuous Input.vi.

I tried several excitation voltage but it's still not working. I don't see any torque variation. I am sure that the torque sensor is fine (I've tested on another test bench).

 

Do you think the sensor worked on that NI DAQ device? Do you think I made a mistake in wiring the sensor to the device or something else?

 

Thank you

 

En francais:

Bonjour,

 

J'utilise un NI 9237 connecté via un cDAQ9171 en usb au PC. Je branche un capteur de couple (Lorenz D-2553) sur un NI9949 (voir schéma de câblage en pj).

J'utilise l'exemple : Bridge - Continuous Input.vi.

 

J'ai essayé plusieurs tensions d'excitation (2,5, 3,3, 5 et 10V) mais malgré cela, je n'observe pas de variation du couple lorsque j'applique un effort sur le capteur.

J'ai vérifié le capteur sur un autre équipement et il est bien fonctionnel.

 

Est-il bien possible d'utiliser le matériel NI en ma possession avec ce type de capteur? Y-a-t'il une erreur de câblage ou de configuration (ou autre selon vous)?

 

Merci,

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You missed some lines?  (the remote sensing lines ?) .. see Fig2 in

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

Greetings from Germany
Henrik

LV since v3.1

“ground” is a convenient fantasy

'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'


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I tried to connect the remote sensing lines but no success.

 

I've tried with another sensor and still the same. I tried to connect a full bridge resistor to the NI and it works fine. So the hardware and Ni software work but doesn't work with my sensor...

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