Proximity Switches

From:         Al Hrovat <ahrovat@cfsmo.honeywell.com>
Organization: Honeywell CAS-SPO
Date:         24 Jun 96 12:24:52 
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I understand that modern aircraft use a magnetic sensor called a proximity
switch to determine the position of landing gear, doors, etc.  Does anyone
know why this arrangement is used instead of a simple mechanical switch?
Are the magnetic pick-offs more reliable than a simple switch?

--
Al Hrovat                     	      |     Ahrovat@cfsmo.honeywell.com
Honeywell Commercial Aviation Systems |      (612) 957-4257     voice
Minneapolis, MN 55433-6040            |      (612) 957-4195 fax
* The views expressed are my own, and don't represent those of Honeywell. *