Engineering

Structure Distortion Measurement

Southern Research Institute has developed a unique facility for measuring structure distortion in air from 275 K to 350 K. Distortions due to isothermal, thermal gradient and load changes are monitored with 0.05 arc-second precision using an autocollimator to measure relative tilt between targets on the part.

  • Satellite Structures
  • Optical Benches
  • Tube Twist
  • Thermal Distortion
  • Hysteresis
  • Load Deformation

Contact:
John Koenig
Director, Materials Research Department
(205) 581-2436
Koenig@southernresearch.org


Flexible Setup

  • Parts up to 2 x 4 meters
  • Multiple target acquisition from top, bottom and sides
  • Up to 80 channels of thermal monitoring
  • Thermocouples, RTDs and silicone diodes
  • Isothermal control from 40° F to 170° F
  • Applied gradients
  • Dual axis, ±1000 asec capture
  • Tests performed in air eliminate dry time and vacuum cost



Accurate Results

  • Target pair approach yields 0.1 arc-second absolute accuracy
  • Continuous, real-time data acquisition during thermal and mechanical exercise
  • Used for thermal stability verification of Chandra, GOES and other space based systems


Ultrasonic Spectroscopy
Ultra-High Accuracy Thermal Expansion
Instrumentation and Software Support
Cryogenic Testing