meas_period :
A primitive for measuring the time difference between two consecutive events of one trigger.

The meas_period primitive measures the time difference between two consecutive events occurring for one trigger input trig. The real-typed output out indicates the time difference between the last two trigger events of the input. It initially takes an “NaN (not-a-number)” value until the first time difference measurement can be made.

Input/Output Terminals

Name	I/O	Type	Description
out	output	real	value
trig	input	xbit	trigger