Laurel Electronics Laureate Digital Stopwatch & Timer - Manual (Page 4)

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 4
Application Examples
Stopwatch Mode
The stopwatch mode is used to time single events between start
and stop pulses on the same channel. Duration of a single wave
shape can be measured by tying the A and B channels together.
Timing Process Dynamics
The start and stop pulses used for timing can be generated by
the dual relay board in a Laureate analog panel meter or digital
counter. For instance, the start and stop pulse edges can be
created as temperature passes two alarm setpoints, or as
temperature cycles in a hysteresis control mode.
Rate Based on 1 / Time
The Extended stopwatch meter can be programmed to display
highly accurate rate based on elapsed time. A pulse or switch
closure can initiate timing, while another pulse or switch closure
stops timing. The meter can be programmed with multipliers to
display rate in appropriate engineering units, such as meters/sec,
for any time duration.
Replacing an Oscilloscope with a Laureate Meter
An oscilloscope is great for viewing and timing pulses in a lab.
However, in fixed installations where digital timing accuracy and
control outputs are required, a low-cost Laureate time interval
meter will be the instrument of choice. Resolution to 0.2 µs is
feasible.
Instrumenting a Pulsed Laser System
Some of the many possibilities in instrumenting a pulsed laser system with Laureate dual-channel
counters: elapsed time, number of pulses, pulse width, pulse separation, duty cycle, and pulse rep rate.