Thermistor o Semi Conductor o=exp(AE/kT) 1 R= O① =4+4InR+4(InR) Precision can reach 0.01C
Thermistor Semi Conductor 3 0 1 2 0 ln (ln ) 1 1 exp( / ) A A R A R T R E kT Precision can reach 0.01oC
Fiber Optic Thermometers o liquid crystal sensor Intensity of the reflected light change due to temperature o LiTaO(钽酸锂)crystal ●Birefringence(双折射)direction dependent on temperature o Other Crystals or phosphors decay time of fluorescence
Fiber Optic Thermometers liquid crystal sensor Intensity of the reflected light change due to temperature LiTaO 3 (钽酸锂)crystal Birefringence( 双折射）direction dependent on temperature Other Crystals or phosphors decay time of fluorescence
Other thermometers o Other electronic devices o Quartz thermometer (resonant frequency) o Liquid Crystal indicator
Other thermometers Other electronic devices Quartz thermometer (resonant frequency) Liquid Crystal indicator