LAB WM108 - Qualified First Trigger

Unique Trigger Captures Data From Cyclic Processes
LeCroy Application Brief No. LAB WM108

Qualified First Trigger
Unique Trigger Captures Data From Cyclic Processes
Many measurement applications
require the acquisition of bursts
of data following an independ-
ent, index synchronization pulse.
This is true for sector data stored
on a disk drive, mechanical
analysis of rotating machines and
engines, and read/write opera-
tions to multiplexed memory. In
each case, the underlying opera-
tion involves a cyclic process
with synchronization sources as-
sociated with each individual
event within the cycle, as well as
a once per cycle index pulse.

A good example of this type of
process is the organization of
data sectors on a disk drive. In
Figure 1