Design and implementation of a light tracker prototype

Date

5-1997

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Alexander A. Lim

Abstract

A single-axis light tracker was designed and implemented with the emphasis on the tracking circuit. The circuit will always minimize the output of the differential summing amplifier of the sensor circuit without regard to the configuration of the phototransistors. When turned on, it searched immediately the location of the closest light source of the highest intensity and the periodic tracking mode started. It was capable of ten second active tracking and forty nine second idle since when the system will be used eventually in the sun-position tracking, the sun changes position only at the rate of fifteen degrees per hour. The circuit set a limit on the span of tracking time to four hours, equivalent to sixty degrees, because of the angular constraint imposed by the tracker assembly. When this limit was reached and when the night/day sensor senses the night, the tracker turned back to its original position for the next day of tracking.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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