Servo System for the Athermalisation of a Germanium Lens,

Abstract

This memorandum describes a simple electronically controlled servo system that was developed to athermalise the geranium lens of a radiometer operating in the infra-red waveband. The system athermalisation was demonstrated, with the result that the radiometer signal was held to within 95% of maximum for a + or - 20 C lens temperature change; this compares with a signal loss of over 90% with no athermalisation.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1982
Accession Number
ADA129355

Entities

People

  • I. C. Carmichael
  • J. D. Roberts

Organizations

  • Royal Signals and Radar Establishment

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Amplifiers
  • Athermalization
  • Climate Change
  • Coefficients
  • Dc Motors
  • Detectors
  • Errors
  • Foreign Languages
  • Materials
  • Measurement
  • Numerical Aperture
  • Refractive Index
  • Resistance
  • Resistors
  • Temperature Coefficients
  • Thermometers

Fields of Study

  • Physics

Readers

  • Child and Adolescent Substance Abuse Science in Autism Spectrum Disorders.
  • Image Processing and Computer Vision.
  • Robotics and Automation.

Technology Areas

  • Microelectronics