Browse Prior Art Database

Sensor for Driving a Solar Panel to Track the Sun

IP.com Disclosure Number: IPCOM000051730D
Original Publication Date: 1981-Mar-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 75K

Publishing Venue

IBM

Related People

Perkins, RJ: AUTHOR

Abstract

A solar collector panel tracks the sun as shade moves across cold-drawn polyethylene strips connected to an error-generating potentiometer.

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Sensor for Driving a Solar Panel to Track the Sun

A solar collector panel tracks the sun as shade moves across cold-drawn polyethylene strips connected to an error-generating potentiometer.

Two black polyethylene strips, prepared as described in Popular Science, February, 1980, pages 126-128, drive a potentiometer through a spring-coupled bell crank. The potentiometer's resistance changes in accordance with the portions of the strips shaded from direct sunlight by a bracket. A control generates a motor drive signal, from an error signal derived from the potentiometer resistance, calculated to keep the panel facing the sun.

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