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Sonsivri > Electronics > Projects (Moderators: bbarney, pickit2) > REQ: Sensoring elevation and/or azimuth
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chuckoo
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« on: April 27, 2009, 11:15:36 11:15 »
Hi folks,

i look for a cheap way to sensor the elevation ( inklination )  and the direction ( aziuth ) of an antenna system  with some sensor like the one found in newer GSM Phones. Does anyone have a cheap (´and low quantity ) source , any schematics or such .. ??

 
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oldvan
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« Reply #1 on: April 27, 2009, 09:44:56 21:44 »
Potentiometer with a long shaft & weight hanging on it makes simple elevation sensor.  Cheap, fairly reliable.
Az can be sensed with another pot or an absolute rotoary.
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chuckoo
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« Reply #2 on: May 08, 2009, 11:00:47 11:00 »
Tnx Oldvan,
but ..  we have such , milspec pot with ceramic/plasic trace and a weight. It works..until it gets real cold..then it is stuck..
thus we look for something non moving...
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oldvan
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« Reply #3 on: May 08, 2009, 01:30:16 13:30 »
OK, how about an accelerometer for EL? 

$20.00 for a 3-axis accelerometer here:  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120414448874

Gravity can still provide your reference, but nothing to stick at low temperatures.
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majstor
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« Reply #4 on: May 11, 2009, 07:14:13 19:14 »
Freescale and sample service for sensors is good solutions.....
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