Need to DIsplay Speed from the Hall SPeed Sensor SIgnal

[Manni_Saini]

Hello Everyone,

I have a Hall Effect Speed Sensor. I am observing the signal of this sensor on LabView via NI USB DAC-6008. Could anyone please help me out in designing a logic which can display the speed of the Wheel on Labview according to the signal attained from the Sensor? It will be really helpful if someone can come up with a logic.

Thanks a lot in anticipation 

[PhilipDeppe]

Hi,

It's not possible to measure frequencys with the NI 6008. Indeed you have a counter on the 6008 but you can only count edges. Anyway i have a workaround for you. You can connect your hall sensor to the Analog Inputs and make a spectral measurement. The spectrum shows you the fundamental and harmonic components of your signal.

Have a look at the attached VI.

Cheers,

Philip

[PhilipDeppe · Accepted solution]

sorry that was the wrong VI.

This is the right VI:

[Manni_Saini]

Dear Phips,

Thanks a lot for your help. I really appreciate it. Though I will try the program soon and will give you the feedback for sure.

Hey I am so sorry to ask for one more favor, but I have designed this VI (look for the attachment) to generate a pulse train of 10 msec with 50 % duty cycle. I need it to generate a pule of 5 volts every 5 ms and then the signal should go down for 5 msec. But the problem is that I used a counter in this program, but my DAC -6008 dont have a control output. how should I modify this program so that I can have a digital pulse train with the required specifications...

Thanks a lot in anticipation.

[PhilipDeppe]

Sorry this is not possible with your device. For Pulse Train Generation you need two counters and correlated DIO lines. I recommend you to use a M Series card.

But what you can try out is a SW-Timed Digital Output. You can find several examples in our Example Finder for Digital Generation.

Cheers