How can I delay analog signal?

[stephen 697]

I have an analog signal, the frequency is less than 1kHz. I want to get a delayed analog signal. Is it possible to realize analog delay generator using labview (daq card is PCI-6115)? I hope I could specify the delay time.

Any suggestion will be greatly appreciated!
Stephen

[Scott_R]

Hello Stephen,

It is possible to institute a delay an analog output. This is best done by specifying a trigger and then beginning the output when that trigger occurs.

Below is a link to an example program developed for LabVIEW that waits a specified number of seconds and then triggers analog output to begin. This code performs analog input as well, but for your program you could remove that portion. The trigger that is used is RTSI pin 0. After a specified period of time, the RTSI pin 0 is set to 1 and then the analog output begins.

Analog Input with Delayed Analog Output

Take a look at this example and
try to build from it for your code. If you have any further questions on this issue, let me know.

Regards,
Scott R.
Applications Engineer
National Instruments