View Full Version : timers

10-06-2000, 01:29 AM
We are looking for simple digital timers/stopwatches that
can be controlled electronically or manually. For example, an
external electronic circuit with a manual switch or TTL signal should
be able to stop and start the timer. We would also like to at some point
be able to hook up photoelectonic switches. These timers will
be used for reaction time and movement time studies as well as to
double check some of our timing data we gather from our kinematic
and kinetic instrumentation.

The timer needs at least 1 ms precision and readouts. Layfayette
Instruments has such devices, but they are expensive (about $600USD).
It seems to me that less expensive devices are available. I am not
against building a timer, as long as I can get the parts off the shelf
(e.g. RadioShack) and have easy instructions.

Anyone have any suggestions?
Jeff Ives, Ph.D.
Dept. of Exercise & Sport Sciences Phone: 607-274-1751
Ithaca College Fax: 607-274-1943
Ithaca, NY 14850 USA Email: jives@ithaca.edu

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