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Author Topic: REQ: Sensoring elevation and/or azimuth  (Read 1327 times)
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chuckoo
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« on: April 27, 2009, 12:15:36 12:15 »

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, 10:44:56 22:44 »

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, 12:00:47 12:00 »

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, 02:30:16 14:30 »

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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« Reply #4 on: May 11, 2009, 08:14:13 20:14 »

Freescale and sample service for sensors is good solutions.....
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