Thermister Immersed Infrared Detector

70,790

The Thermister Bolometer is an extremely rugged, reliable, broad band Immersed Infrared Detector, which is composed of thermister and Germanium immersed lens, has been used as Infrared earth sensor of satellites such as spinning and three-axis stabilized satellites. It has been also applied in various kinds of Infra-Red signal detectors.

Category:
  • Features
  • Performance
  • Applications:
    • Small Satellite
    • Communication satellite
    • LEO Satellite
  • Flight Heritage: 125 units in flight
  • Model: RHT202
    • Active element size (mm): 0.18 x 0.18
    • Peak Voltage (V) (25°C): >43
    • Isolation resistance (Ohm): >1011
    • Bias Voltage (V): ±25
    • Response rate (10-6 V/10-6 W): 250~400
  • Model: RHT203
    • Active element size (mm): 0.13 x 0.13
    • Peak Voltage (V) (25°C): >34
    • Isolation resistance (Ohm): >1011
    • Bias Voltage (V): ±17
    • Response rate (10-6 V/10-6 W): 500
  • Resistance (KOhm)(25°C): 250±50
  • Difference of resistance between two flakes (KOhm)(25°C): < 6
  • Time constant (ms): 4-5 (Pulse method)
  • D (500,10,1) cm.Hz/W: (2~5) x 108
  • Mass: 23±0.5g
  • Temperature: -10°C — +40°C
  • Designed lifetime: 3 years
  • Radiation Performance: 30 krad
  • Interfaces: