Principle of Operation

Principle of Operation

LG Tech-Link Global manages UCTS manufacture and calibration, supports customers through the full test cycle (from planning through to execution and removal), provides data reduction and analysis services and takes part in results interpretation discussions, as needed.

Manufacture and Calibration

  • SiC is a robust, temperature resistant material that is well studied
  • During the manufacture process many specialized point defects are created, which can be annealed with exposure to temperature over time
  • Thousands of well controlled experiments are conducted to create a calibration nomogram relating changes in the crystal latice with temperature and time.
Principle of Operation 1

Test Planning and Execution

  • Typical installation embeds the UCTS in a tiny cavity within the test article, hidden from the chaotic and harsh influences of the flow path.
  • Throughout the duration of testing, the defects in the crystalline structure are annihilated as a function of temperature and time.
  • UCTS are then removed and returned to LGTL Global for analysis along with a normalized time history of the test.

Analysis and Data Reduction

  • Max temperature experienced during the test is determined using x-ray diffractometer measurements, the calibration nomogram, and a reference time history of the test.
  • A thorough thermal mapping can be achieved with good accuracy. Measurement results are typically used by customers for design verification and model validation purposes.