Sample Clock

[SparkEE]

Hello,

I am using Labview 8 on Windows XP along with a PXI 6602 and SCB 68.

I am using incremental encoders for my project.

I just want to verify that when the programs asks for sample clock I should choose the 80MHz timebase

Any information is greatly appreciated.

Thank you,

SparkEE

[DJColeslaw]

In LabVIEW, you can navigate to "Help >> Find Examples".   In the resulting window, click the search tab.  Search for "encoder" and there should be three examples that show up which start with "Counter - Read Encoder".  These examples will show how to set everything up and should get you up and running.

[mikeporter]

The examples will show good procedures for making this measurement, the question of correct time base is a little more complex.

The issue is that your counters aren't infinitely long. So the right time base is a trade off between resolution and how long a period you are wanting to measure. You want it fast enough to give the resolution you desire, but not so fast that it overflows the counter.

Mike...