Bgranier said:
I have a push button switch and all I want to do is put in a motion
sensor switch to complete the circuit so that it will send the signal.
I just need to know what kind of switch to buy.
You just need to tell us a few more things.
What are the characteristics of the switch you intend to
replace (membrane/resistive/SPST/snap-action/other?)
Voltage, current capacity)?
What kind of motion are you sensing? What's moving, how
far, and how fast? Does the switch have to detect a change
quickly (how quickly), then "reset" quickly for the next
event? Does it have to do so repetitively (as in sensing
rotation), and what're the chances it will have a mechanical
resonance near that repetition rate? Can the circuit handle
input changes at the likely rep rate?
Does the switch need to physically contact the moving
object to detect it? How much mechanical force does the
switch have to cope with from the moving object?
If not, what property of the object changes as it passes
by (brightness, color, magnetic properties, etc)? How
quickly does it change: is the circuit the switch is part of
capable of debouncing the new switch's action? Does it need
to? Is there an adequately sharp transition in the sensed
property as the object passes from "I don't care where it
is" to "I need to know when it's _here_" and back?
Will you need to mount the switch remotely from the
original circuit? Will the fact that you have to use wires
to connect it screw up timing etc?
What's the environment (electrical, chemical, etc) the
new switch will have to operate in? Will you have to shield
or otherwise protect the switch and wires?
Mark L. Fergerson