不同填充材料PCR仪测温探头动态响应时间测试  

Dynamic Response Time Test of Temperature Probe with Different Filling Materials for PCR Instrument

作　　者：刘秀丽 祝天宇 赵凯峰 朱娟 殷海勤 LIU Xiuli;ZHU Tianyu;ZHAO Kaifeng;ZHU Juan;YIN Haiqin

机构地区：[1]泰州市计量测试院,江苏泰州225300 [2]北京林电伟业电子技术有限公司,北京100097

出　　处：《计量与测试技术》2021年第12期20-22,共3页Metrology & Measurement Technique

基　　金：江苏省医药健康产业计量测试中心(筹)“提升测量装备研制及方法研究与创新能力”项目。

摘　　要：温度传感器的动态响应时间快慢决定了对被测设备温度跟随能力的强弱,提高PCR仪测温探头的热响应能力,减小动态测量误差,能够更加准确地测量到PCR仪在运行过程中的全流程温度数据。本文对不同填充材料的PCR仪测温探头的动态响应时间进行了测试,测试结果表明:采用双组分环氧树脂、氧化铝和导热硅脂填充的三组探头动态响应时间差异不明显,其中双组分环氧树脂动态响应时间最快。考虑到测试结果及封装固化难度,应优选双组分环氧树脂作为PCR仪测温探头的填充材料。The dynamic response time of the temperature sensor determines the temperature following ability of the tested equipment.It improves the dynamic response ability of the temperature probe for the PCR instrument, reduces the dynamic measurement error, and can more accurately measure the temperature data of the whole process of the PCR instrument in the operation process.In this paper, the dynamic response time of the probe for PCR instrument with different filling materials is tested.The test results show that the dynamic response time of the probe filled with two-component epoxy resin, alumina and thermal silicone grease is not obvious, and the two-component epoxy resin has the fastest thermal response time.Considering the test results and the difficulty of encapsulation and curing, the two-component epoxy resin should be selected as the filling material of the temperature probe for PCR instrument.

关 键 词：温度传感器 填充材料 动态响应时间 PCR仪 

分 类 号：O551.2[理学—热学与物质分子运动论]