A fluorescence intension ratio fiber temperature sensor systemusing Y 2O 2S:Eu+Fe 2O 3 as the temperature sensitive material is designed and tested,and the result shows that this material has an excellent performance in the temperature measuring system.
以Y2 O2 S :Eu +Fe2 O3为温度敏感材料设计强度比型荧光光纤温度传感器 ,实验结果表明该荧光材料用于温度测量性能优良。
By appraisal, performanceof the system is listed as follows:length of single mode fiber: 31km, temperature rang:0-100°C (can be expanded) ,temperature measuring uncertainty:±2°C, temperature resolution:0.1°C, measurement time:432s, spatialresolution :4m.
The high precision one-wire digital temperature sensor-DS1820',interior structure, work principle and the high precision one-wire temperature measure system' software and hardware which is made up of 80C31 and DS1820 are discussed.
Temperature measurement from the intensity ratio of the Raman-scattering lines in carbon tetrachloride constituting the liquid c
Noncontact Temperature Measurement on Dielectrics and Semiconductors, Part 1
Noncontact temperature measurement on dielectrics and semiconductors, part 2
Recommendations are made for selection of a spectral range of temperature measurement on the surface and a thin surface layer of different materials.
An important advantage of the CCNHEB is its simple topology, in which the same tunnel junctions provide thermal decoupling, noise protection, temperature measurement, and it can be used for electron cooling.
Also, a special temperature measuring system was applied to record the temperature variation of the heating surface.
The results show that temperature measuring uncertainty is ±2 °C, temperature resolution is 0.1 °C, measurement time is 432 s, spatial resolution is less than 4 m.
Including both the Rayleigh and Raman modes leads to a continuous temperature measuring method to survey changes in the lower and middle atmosphere.
The proper implementation of these two experimental conditions will require the introduction of appropriate mixing accessories and temperature measuring probes for samples of small volume in current microwave laboratory ovens.
Nithout drawing final conclusions it si pointed out that in order to explain this differnce one may hink of a certain systematical defect of the earlier mode of temperature measuring or of a general hange in climate.