Distortion is measured and output voltage control method.

[宮川]

Hello.

I am writing a program to read the distortion using NI 9237 and to generate an external voltage according to that value using NI9263.

I am trying to change the output voltage by changing the duty ratio by using PWM control as the external voltage control method.

Is it possible?

Examples) Strain value 800[µst] → Output voltage 8[v] (DUTY ratio 80[%])

                  Strain value 1000[µst] → Output voltage 10[v] (DUTY ratio 100[%])

[GerdW]

Hi guy from Asia,

yes, that's possible (in general).

I am trying to change the output voltage by changing the duty ratio by using PWM control as the external voltage control method.

The NI9263 is an AO module, it does not use PWM by default. You might output waveforms to simulate the PWM behaviour, if that is what you want…

[宮川]

Thank you for your reply and I'm sorry I'm late.

I am currently creating such a program.

I am sorry, I use Japanese in program.

DAQ Assistant 3 (DAQアシスタント３) reads the value of distortion, performs PWM control conversion in signal simulation (信号シミュレーション), and generates external voltage with DAQ Assistant (DAQアシスタント).

The lower DAQ Assistant 2 (DAQアシスタント２) is for reading another strain.

Each of the two strain is written in a .csv file.

It is not possible to convert from filter 2 (フィルタ２) in the middle of the program to duty ratio from signal simulation.

Do you understand?

[宮川]

There was a mistake.

It is not Distortion but strain.