Research of high precision quartz temperature sensor system based on data fusion technology

摘要

In order to improve the accuracy and reliability of temperature measurements, put forward a kind of high precision non-contact temperature measuring system, which is composed of the quartz temperature sensor array and microprocessors. Compared with the traditional thermometry, a new temperature sensor array was setup to measure temperature, which uses the Bayes estimation to fuse the data measured by the temperature sensor array, and calculate the accurate temperature measurements. The experimental results shown that the measurement precision of sensing system is 0.02°C, and the sensitivity is 71.5×10⁻⁶/°C within temperature range from 0°C to 100°C. The system has advantages of the high precision, and the good stability, and reliable performance, etc.