XIANG Yang1, LIU Bo-feng1, ZHANG Jun1, et al. Research and design of ultracentrifuge temperature measuring system based on infrared technology[J]. 2012, 31(3): 119-121+125.
XIANG Yang1, LIU Bo-feng1, ZHANG Jun1, et al. Research and design of ultracentrifuge temperature measuring system based on infrared technology[J]. 2012, 31(3): 119-121+125. DOI: 10.13873/j.1000-97872012.03.009.
基于红外技术的超速离心机测温系统研究与设计
摘要
超速离心机转子需要在高真空环境下高速运行
传统的接触式测温会产生较大的误差。根据红外测温的原理
采用红外热电堆传感器测量转子的温度
介绍了红外测温系统的总体设计和测量电路硬件设计
并重点研究了环境温度与转子材料发射率对测量精度的影响
采用了相应的补偿算法来提高精度.经仿真实验和实际测试表明:该系统能满足超速离心机的温控要求。
Abstract
Ultracentrifuge rotor needs high-speed operation in a vacuum environment
the traditional contact type temperature measurement produces large errors.Based on the principle of infrared temperature measurement
using infrared thermopile temperature sensor to direct measure the rotor temperature.The overall design and measurement circuit’s hardware design are described.Impact of environmental temperature and rotor material emissivity on measurement precision is focused on
and a corresponding compensation algorithm is used to improve the precision.The simulation experiments and practical tests show that the system can meet the temperature control requirements of ultracentrifuge.