Accession Number:

AD0623101

Title:

PARALLEL L-C TUNED CIRCUIT EMPLOYING A LIGHT-VARIABLE CAPACITOR.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

• Wheeler,Joseph Charles

Report Date:

1965-08-01

Pagination or Media Count:

83.0

Abstract:

A modified Schering bridge circuit was used to measure the resistance and capacitance of a metal-oxidesemiconductor capacitor MOSC illuminated by a 500 watt tungsten-filament lamp. An increase in capacitance ranged from 55 at .6 mc to 4 at 40 mc with light, and the quality factor ranged from a peak of 65 at 12 mc with no light to a peak of 6.5 at 30 mc with light. For small frequency variations around the peak values of Q the MOSC had constant characteristics and could be used as a light tunable capacitor in a parallel L-C circuit. Author

Descriptors:

• *TUNED CIRCUITS
• VARIABLE CAPACITORS
• LIGHT
• ELECTRICAL RESISTANCE
• CAPACITANCE
• OXIDES
• SILICON DIOXIDE
• SILICON

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE