Almost-accurate rotation center:
05/13/98 Electronic Design - Ideas for Design /
Most motion-control applications typically
employ an optical disk or Hall-effect device in
order to accurately count the number of times
that a motor shaft rotates. While the following
circuit lacks the accuracy of both the optical
disk and. . .
Available-light phototachometer
simplifies outdoor remote sensing:
01/25/99 Electronic Design - Ideas for Design /
Tachometry, the measurement of the speed of
rotating objects, is a common enough application
that has many practical but few noteworthy
solutions. Some of these jobs, however, have
quirky aspects. . .
