HomeProjectsBiomedical Sciences and Healthcare TechnologiesLaser-based Non-contact Body Temperature Sensor

Laser-based Non-contact Body Temperature Sensor

Project Quick Facts

Principal Investigator

  • Prof. REN Wei

    Department of Mechanical and Automation Engineering

  • Patent

    1 China patent filed

Under COVID-19, there is an urgent requirement for fast and precise temperature measurement. However, the existing contact thermometers are likely to cause secondary infection, while the non-contact ones have low reliability and are easily affected by external environments.

Concerning these problems, a precise and fast optical thermometer based on tunable diode laser absorption spectroscopy is developed for breath diagnostics with relevance to non-contact body temperature measurements.

Laser-based sensor tested in a temperature controllable gas cell.
Temperature measurement results of our laser-based sensor (black line).

Uniqueness and Competitive Advantages:

  • Non-contact measurement
  • Fast response (1s real-time)
  • High accuracy (< 0.16 ℃ error)
  • Active measurement without needs for pre-calibration
  • Highly integrated system and intelligent data post-processing program

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