Two frequency with two square signals on daqcard conuters synchronized with analog inputs

[devchander]

Hi David,

 I guess that measure frequency VI uses both the counters to measure frequency.

And using a single counter, you can only perform a period measurement.

so what i usually do is find inverse of period measured by a single counter and use it as frequency, whenever i have to use both the counters in a multifunction E series daq card

can u tell think of a better way?

regards

Dev

[devchander]

Hi David,

 I guess that measure frequency VI uses both the counters to measure frequency.

And using a single counter, you can only perform a period measurement.

so what i usually do is find inverse of period measured by a single counter and use it as frequency, whenever i have to use both the counters in a multifunction E series daq card

can u tell think of a better way?

regards

Dev

[daviddelebecque]

Hi,

The DAQ-STC has two counters. Typically both are required for doing one frequency measurement. BUT the VI I attached in the thread before demonstrates how to measure two frequencies simultaneously using the DAQ-STC counters by using an analog output channel (instead of a counter) to generate the required gate signal. This frees up the second counter to be used for frequency measurement.

Besides, Your way of working is great..

Regards

DD