DEVELOPMENT AND TESTING OF A CADMIUM TELLURIDE HIGH TEMPERATURE (750 F) INFRARED FIRE DETECTOR

CdTe photodetectors capable of operating continuously at 750F were packaged for flight testing as an aircraft engine fire detector. The sensors at temperature could detect a photosignal of 50 microwatts per square centimeter with a signal-to-noise ratio of over 20:1 and an output impedance of 1000 ohms. The units consist of two CdTe sensors separately sealed in hermetic TO-8 headers which are mounted inside a larger hermetically sealed housing made of inconel. The detectors meet MIL-Spec 810B including temperature cycling up to 750F, well above the capability of all the available semiconductor infrared detectors. (Author)

• Corporate Authors:

  Tyco Laboratories Incorporated

  Waltham, MA  United States 
• Authors:
  • Entine, G
  • Farrell, R
  • WILSON, F
• Publication Date: 1973-11

Media Info

• Pagination: 73 p.

Subject/Index Terms

• TRT Terms: Fire detection systems; Hot box detectors; Materials science
• Subject Areas: Railroads;

Filing Info

• Accession Number: 00054410
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: C-222 Final Rpt
• Contract Numbers: F33615-72-C-1489, F33615-71-C-1084
• Files: TRIS
• Created Date: Jun 10 1974 12:00AM