LabVIEW
Calculating the speed of a motor
I have a sample motor calculated data in the file and i need to find out the speed in km/hr from the amplitude. Can anyone please help me out. I had also attached a vi in which you can get the amplitude values from that we need to calculate the speed.
What is the relationship between this amplitude and the speed? What kind of sensor are you using? What does the measurement system look like?
Actually i dont know the relationship between the amplitude and the speed. I am using the speedometer sensor. Coming to the hardware I used the CDaq- 9172 chassis in which we used the 9219 module.
Hi Chandu,
i dont know the relationship between the amplitude and the speed.
Neither do we…
I am using the speedometer sensor.
Which sensor? Do you have a datasheet of that sensor?
Hi,
Try to describe your vi.
Speedometer is a gauge that measures the instantaneous speed and not the rotative speed.
- Firstly, when you want to use a sensor, you must consider the datasheet to choose the best acquisition unit for your measure. send us the datasheet of your sensor. We will be able to do relationship between data that we acquire and speed.
- secondly, you are using module NI 9219, don't forget the maximal sampling rate of the module (Use the datasheet of the module).
Finaly, When you will have the instantaneous speed you will be able to calculate the rotative speed by the formular :
n = V/(2.pi.R)
V : lineaire speed (m/s)
R : radius of the wheel (m)
n : rotative speed (tr/s)
Let me know if you have another question.
Regards,
Fred.
Kudos are welcome!
@Chandu29
@Chandu29
@Chandu29
@Chandu29 wrote:
Here are the datasheets of the acquired data.
I think those would typically be referred to as datasets. The datasheets needed are provided by the manufacturer of the sensor, and give technical information about inputs, outputs, operation methods, power requirements, and so on.
