Accession Number:

ADA129355

Title:

Servo System for the Athermalisation of a Germanium Lens,

Descriptive Note:

Corporate Author:

ROYAL SIGNALS AND RADAR ESTABLISHMENT MALVERN (ENGLAND)

Personal Author(s):

Report Date:

1982-11-01

Pagination or Media Count:

17.0

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.

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE