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Title: REQ: Sensoring elevation and/or azimuth Post by: chuckoo 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 .. ?? Title: Re: REQ: Sensoring elevation and/or azimuth Post by: oldvan 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. Title: Re: REQ: Sensoring elevation and/or azimuth Post by: chuckoo 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... Title: Re: REQ: Sensoring elevation and/or azimuth Post by: oldvan 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 (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120414448874) Gravity can still provide your reference, but nothing to stick at low temperatures. Title: Re: REQ: Sensoring elevation and/or azimuth Post by: majstor on May 11, 2009, 07:14:13 19:14 Freescale and sample service for sensors is good solutions.....
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