how to calculate the time between triggering the signal and receiving back

[sachinkadde1]

i want the time elapsed between triggering the signal and receiving it back through a ultrasonic sensor in compactrio labview fpga.

[GerdW]

Hi sachinkadde,

Calculation should be simple like this:

time_elapsed = time(signal received) - time(signal triggered)

Where's your problem?

[sachinkadde1]

thanks for your reply sir, but i dont find any pallete which shows the receiving time of the signal.

thank you

[joaopam]

Take a look at this link:

Using the Tick Count (ms) VI to Measure Elapsed Time Over a Long Interval

And take a look at the snapshot (that's the palette you will have to use)

Best Regards

[sachinkadde1]

thank you sir for your reply, but im working on fpga target cRIO-9082 chassis it wont support those palletes , yah if i dont work on fpga target then i can use those palletes ....in attaching the vi for generating a digital pulse and acquiring it back but yrt dint got any idea hot to determine the time...if the vi is wrong please make the neccessary changes. i used this vi to determine the total time between trigger and receving signal of ultrasonic sensor.

Thank you 

[GerdW]

Hi sachinkadde,

there are also TickCount functions for the FPGA available!

And there is this KB entry explaining how to use a 64bit tick count!

[sachinkadde1]

THANK YOU SIR WIL TRY IT .