Signal gating and integration

[Javed123]

I have an application which I wish to calculate the integration of an incoming signal which is above a certain

threshold.

I have not attcahed the application vi but have attached TutorialGenAnalyzeDisp JS.vi and modfied it to try and

do this but I am having problem in getting it to work correctly.

What I want it to do is to clip the peaks off the sine wave above 0.5V using the relay function and feed this

into a integration routine and display the result. The result should be the area under the sine wave above

0.5 and I should be able to get the full area or a fraction of depending on my dt value I feed into the integration

vi.

Instead the relay output does not seem to give me the clipped tops of the sine wave rather the sine wave

coming & going.

Any tips on how to proceed greatly appreciated.

Thanks

Javed

[JonBowers]

Hi Javed,

The Relay express vi won't return what you want from the signal. Instead you could use the Mask and limits express VI. I have modified your vi to use this instead of the Relay. Is this waht you wanted?

Reagrds

Jon B
Applications Engineer
NIUK