is it possible in Labview? Suggest me...

[shjukheter]

 to smercurio_fc

Thank you so much for link, that may the exact one to my module. I had seen some other device by NI before and that costs around 5000$. Now, Already i connected my motor by serial to labview. Because of that reason, i though i can use some external sound sensor.  The given one matches to my requirements but can i use that as external sensor near to motor, because, my motor circuitary is placed inside which is same for all the motors. More, the given sensor can conneced with USB to labview. According to the information from sensor i want to adjust the motor by labview againe. This means, its become circle type communication--> Labview to Motor then external sensor to labview and then again labview to motor based on the tracked information. Is i am going in write direction? or some other suggestions with DAQ or something else.

[smercurio_fc]

I have never heard of any sound sensor made by NI or anybody else that costs $5000. I think you may be confusing sound sensor with an acoustic system like this: http://sine.ni.com/nips/cds/view/p/lang/en/nid/207807

As for using it with your hardware, I don't quite understand your question about the circuitry inside the motor. If you use an external sound meter you'd need to mount it somewhere near the motor. As for connecting it to LabVIEW you can either connect the device to a National Instruments analog input module or you can buy the analog input modules that Phidgets sells. If you use an NI analog input modules you'd use DAQmx. If you buy one of the modules from Phidgets they provide a .NET library that you can use.

[shjukheter]

  to smercurio_fc

      As for using it with your hardware, I don't quite understand your question about the circuitry inside the motor.

           All the motors have same circuitry which is placed inside the motor. Now, I can nor change the circuitry for all by adding one internal sound sensor. So only, I would consider myself as taking an external sensor that process the sound differences(more than 70dB as noise) to labview which can be useful to adjust the all motors. I am really new to these kind of communications whether it is going to work or not?.

[smercurio_fc]

Why do you think you'd need to change the motor circuitry in order to connect a sound sensor? The sound sensor is independent of the motor. Assuming, of course, that you still go with a sound sensor.

[johnsold]

I am guessing that the OP has something like a brushless DC motor with internal drivers and that the driver is smart enough that he can modify the motor behavior with firmware.  His answers to your questions have been more confusing than enlightening.

More information would be helpful.

Lynn

[shjukheter]

I am not quite understand your intention, but now I am just attaching senor externally to motor(means out to the motor mechanical parts). Then, read back the senor data by DAQ to labview which will help to analyze the noise and again adjusting the noise from labview to my already connected SERIAL motor. In this fashion, I am going to work but I don't know whether it is going to work or not. You can see example picture exactly looking same as my motor.

[shjukheter]

  @  Johnsold

We can say it as a pump than motor, it can start pumping when the applied voltage is 12 to 20V. I am wondering that may be i am not explained well. You can ask me a straight question so that I can elaborate more.

[shjukheter]

  @  Johnsold

We can say it as a pump than motor, it can start pumping when the applied voltage is 12 to 20V. I am wondering that may be i am not explained well. You can ask me a straight question so that I can elaborate more.

[johnsold]

OK, let's try some simple questions.

1. You say that the pump begins pumping at 12-20 V.  Does the pump stroke vary with voltage? 

2. You say the communication is serial. You have also indicated that you can set limit on the stroke to avoid the noise.  Is this done via the serial link?

3. Is the serial communication used for routine operation of the motor (not just the stroke limit)? 

4. Is the noise test run with the pump dry or are fluid lines connected?

5. Is the pump in a test fixture, loose in the test area, or in a complete system when you do the noise test?

Lynn

[shjukheter]

1) I just started my work on yesterday. So, the pump is working good at V when there is noise and even if you increase the voltage, still it is good but look like more strokes inside. I am not sure about this. I guess when increase the voltage, the number of strokes are fast.

2)Yes, exactly but they are using another GUI to communicate with pump via serial. And if they hear some noise when the pump working, They just write a value between 0 to 255(consider this as distance between stroke magnet and mechanical part) in that GUI and write it to the pump which can store that in EEProm(inside pump in a PCB ) for rest of the life. So, in this way they are overcoming the noise and ready to sale. Now they are going to change their whole System into labview that can communicate and also adjust this stroke value from labview(now manfully they are changing for each and every pump in the above manner) by using some external sensor.

3)Yes, each and every operation is based on serial communication(writing to, reading from) on old GUI and newly created some labview VIs also on serial. Problem is to reduce this noise by only fixing the exact and precise stroke length from labview. That I need to develop in labview by using some external sensors. Then whole system is ready to use for production checking and some other writing and reading information in labview.

4)They first fix the stroke length manually when it is no load and full load(all in and outlets are closed by some obstruction). Once they fix these two without noise(sound when it touches the inside part), they check more again with liquid in and out.

5) I am not understand your question.

More welcome to ask questions. Am I going in write way?