Pulse Average

[Stuart Wilson]

I am programming a vi to monitor the current supply to our plant motors. We have one particular motor which operates intermittently during a production cycle. It draws a high current during application and then idles on a low current until the next application. This generates a sort of pulse trend on my Historical Trend graph (see attached jpeg). I would like to calculate the average of the current only while the motor is above idle current (i.e. whilst motor is active during application).

I see there is an express vi which measures pulse duration and another which measures arithmetic mean, however there is not one that offers the arithmetic mean of a pulse. Are there express vi’s available for this?

Any advice on setting a condition to execute the while loop (which would calculate the running average) would be greatly appreciated.

Best regards,

Stuart Wilson

[AdamB]

Please refer to the duplicated forum post below

http://forums.ni.com/ni/board/message?board.id=170&message.id=149027