Honeywell IHM Aerospace Proximity Sensors

Honeywell IHM Series Aerospace Proximity Sensors are customizable, non-contact, hermetically sealed devices designed with advanced technology over the classic ECKO (Eddy Current Killed Oscillator) topology that was once the standard in aerospace applications. The IHM sensors include a unique circuit that can identify any internal defects and display a fault output instead of a false positive or false negative, reducing downtime and maintenance. These IHM aerospace proximity sensors feature an operating temperature range from -55°C to +115°C and are available in supply voltage ranging from 12Vdc to 28Vdc. Ideally, IHM sensors are used in TRAS (Thrust Reverser Actuation System), flight controls, landing gear, and evacuation slide door-lock mechanism.

Features

  • Current install base, proven performance, and MTBF
  • EMI specifications and enhanced vibration
  • Health monitoring
  • Hermetically sealed
  • Industry-leading indirect lightning and dielectric ruggedness
  • Integral health monitoring capability
  • Non-contact design
  • Platform approach helps lower engineering investment
  • Superior vibration ruggedness
  • Supplier stability

Applications

  • Cargo loading latch detection (palet locked)
  • Doors (open/closed position and locked status)
  • Evacuation slide door-lock mechanism
  • Flight controls (flap/slat and spoilers)
  • Landing gear (uplock, downlock, and WOW (Weight On Wheels))
  • TRAS (stowed or deployed status)

Technical Specifications

Parameters Values
Dielectric strength 1500Vdc and 1500Vac
Maximum sensing distance 5mm
Minimum insulation resistance 200mΩ at 50Vdc
Operating temperature range -55°C to +115°C
Supply current <10mA
Supply voltage range 12Vdc to 28Vdc
Weight range 60g to 150g