Specialized Instrumentation

Navistar maintains a variety of specialized transducers and instrumentation to assist with vehicle testing. Transducers and instrumentation systems are calibrated to NIST-traceable standards.

Available instrumentation includes:
  • Sensor development torque steering wheel for measuring steering effort and steering wheel angle
  • MTS SWIFT (spinning wheel integrated force transducer) for measuring wheel loads on passenger cars and light trucks
  • Crossbow fiber optic digital gyroscope for simultaneous measurement of yaw, pitch, roll and three-axis acceleration
  • Dewetron VGPS system with 200 Hertz update rate; used for high-precision speed and distance measurements and GPS coordinate mapping
  • Garmin general purpose 5-Hertz GPS sensors
  • Global Sat general purpose 1-Hertz GPS sensors
  • AMCO mechanical fifth wheels for speed and distance measurement
  • Optical and microwave fifth wheels for speed and distance measurement
  • AIC 1204 gasoline fuel economy flow meters
  • AIC 6404 diesel fuel economy flow meters
  • Michigan scientific torque wheel systems for passenger car/light truck brake testing
  • Campbell Scientific Weather Station, which includes ambient temperature, brake level temperature, imbedded track temperature, wind speed and direction, relative humidity, barometric pressure, wind chill and heat index
  • Bruel & Kjaer Sound Level Meter (meets IEC 60651 Type 1 and ANSI S1.4 Type S1A specifications)
  • Larson Davis random-incident microphones
  • Rion handheld frequency spectrum analyzer
  • Larson Davis model 3200 six-channel frequency spectrum analyzer
  • PCB Piezotronic free-field microphones with removable A-weight filters
  • Single-axis, 500-g, ICP-type accelerometers; range 0.5 to 17K Hertz
  • Integrated tri-axial accelerometers, 50-g, ICP-type; range 0.5 to 4 kHz
  • Four-channel proximity sensor systems for measurements at the micron level; accuracy +/-3 microns
  • Digital tachometers
  • Dynatest/Bosch pavement friction coefficient test trailer
  • Luxor CCTV cameras with controller for simultaneous in-vehicle video acquisition
  • Digital microscope with both still camera and video output
  • Fluke 5500A Multi-Product Calibrator