The authors demonstrated a microfabricated tuning fork temperature/infrared sensor with noise equivalent temperature difference (NETD) of 0.5 mK at 20 °C and with a thermal limited noise level of 5 μ°C. The sensor raw material can cost less than 10 cents each and has a time constant of approximately 50 ms. The sensitivity of infrared signal can potentially be further improved and optimized by selecting polymer materials with a proper thermal response.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)