boolean pulse duration

[unclebump]

I messed up and posted this in the DAQ forum and couldn't see a way to move it to the Labview forum.

How would you measure the duration of the zeroes and ones in a boolean array of data?? I want to know the length of the on/off values in each segment.

[Ben]

Hi Unncle,

I owe so here is a quick hack to get you started.

I search for alternating T/F's noting the index of each.

The difference in the index values times your sample period should give you an answer.

Ben

PS Its a quickie so test thoroughly.

Message Edited by Ben on 05-20-2005 01:40 PM

[unclebump]

Thanks Ben,

I'll take a look at it after I get done covering the maintenance people at shift startup. It looks like we need some new analysis vi's for the digital waveform and digital data types. The pulse measurements only work on analog data.

[unclebump]

Hi Ben,

Could you save that file as a 7.0 format?? Thanks..

[Ben]

Same comments as before.

It just gets you started.

Ben

[unclebump]

I modified some of the standard digital table vi's. It outputs a cluster with the signal level, duration of the pulse, and column for bit change. Right now the transitions are based on any of the 8 bits changing state. I'll have to modify the compression vi to search for bit changes in each of the eight data columns.

[raphael.wittwer]

Hi Ben

this is an old post, but your example helped me a lot, thanks.

The extension of your example in analyze saved data rev4.llb ‏263 KB however does not produce correct results for me, but I couldn't see why so far.

Cheers