温度开关动态特性测试方法研究
|
摘要
针对温度开关无法按照常规方法得到时间常数的问题,提出了一种测试温度开关动态特性的方法。采用一只温度传感器作为标准器,通过程序控制温度源,使温度按一定速率进行升温,实时记录温度值。按照不同的升温斜率连续实施两次,利用得到的动作温度数据建立数学模型,从而求出温度开关的时间常数。选取不同的温度传感器作为标准器,对两只德国产温度开关进行测试,分析其对计算出的时间常数的影响。实验结果表明,计算出的时间常数最大相对误差为4.86%,满足温度开关时间常数的测试要求。此方法可推广到研究其他种类的开关,比如湿度开关。
Aiming at the problem that the temperature switch can not obtain the time constant according to the conventional method,a method for testing dynamic characteristic of temperature switch was proposed. A temperature sensor was used as standard device,the temperature source was control by program so as to raise the temperature according to a certain rate and record the temperature value in real time. In accordance with the different temperature gradient for continuous implementation twice,mathematical model was established adopting obtained action temperature data,thus the time constant of temperature switch was get. Different temperature sensors were selected as standard device,to test two German-made temperature switch,analysis influence on the calculated time constant. The experimental results show that the maximum relative error of the calculated time constant is 4.86%,which meets the test requirements of time constant of temperature switch. This method can be extended to study other types of switches,such as humidity switches.
Aiming at the problem that the temperature switch can not obtain the time constant according to the conventional method,a method for testing dynamic characteristic of temperature switch was proposed. A temperature sensor was used as standard device,the temperature source was control by program so as to raise the temperature according to a certain rate and record the temperature value in real time. In accordance with the different temperature gradient for continuous implementation twice,mathematical model was established adopting obtained action temperature data,thus the time constant of temperature switch was get. Different temperature sensors were selected as standard device,to test two German-made temperature switch,analysis influence on the calculated time constant. The experimental results show that the maximum relative error of the calculated time constant is 4.86%,which meets the test requirements of time constant of temperature switch. This method can be extended to study other types of switches,such as humidity switches.
引文
[1]朱杰,郭涛.一种Pt100温度传感器的动态热响应模型[J].传感技术学报,2013,26(1):73-77.
[2]路立平,鹿晓力,高巍.不依赖于传感器静态特性的温度传感器热时间常数测试方法研究[J].河南师范大学学报(自然版),2012,40(6):36-38.
[3]高爱民,殳建军,于国强,等. PT100热电阻动态特性试验研究与分析[J].传感技术学报,2016,29(9):1395-1399.
[4]张根甫,郝晓剑,桑涛,等.热电偶温度传感器动态响应特性研究[J].中国测试,2015,41(10):68-72.
[5] Doghmane M Y,Lanzetta F,Gavignet E. Dynamic Characterization of a Transient Surface Temperature Sensor☆[J]. Procedia Engineering,2015,120:1245-1248.
[6]路立平,冯建勤,鹿晓力.温度传感器的热时间常数及其测试方法[J].仪表技术与传感器,2005,18(7):17-18.
[7]马毅,张宏宇.薄膜铂热电阻特性分析[J].计量与测试技术,2012,39(8):7-8.
[8] Boguhn D,Koepke M. Typical R(T,90)Characteristics of Platinum Thin-Film Resistance Thermometers in the Temperature Range from-50℃to 6 660℃[J]. International Journal of Thermophysics,2011,32(11-12):2379-2387.
[9]冯浩,张志杰,黄晓敏,等.基于NANMAC热电偶的时间常数测试技术研究(英文)[J]. Journal of Measurement Science\s&\Sinstrumentation,2014(4):1-4.
[10]崔佩佩,何强,韩壮志,等.用LabVIEW FPGA模块实现不同时钟域的数据连续传输[J].现代电子技术,2011,34(17):149-152.
[11] Bernhard F. Technische Temperaturmessung,Springer-Verlag,Berlin/Heidelberg,2004.
[12] Michalski L,Eckersdorf K,Kucharski J,et al. Temperature Measurement,Second Edition[M]. 2002.
[2]路立平,鹿晓力,高巍.不依赖于传感器静态特性的温度传感器热时间常数测试方法研究[J].河南师范大学学报(自然版),2012,40(6):36-38.
[3]高爱民,殳建军,于国强,等. PT100热电阻动态特性试验研究与分析[J].传感技术学报,2016,29(9):1395-1399.
[4]张根甫,郝晓剑,桑涛,等.热电偶温度传感器动态响应特性研究[J].中国测试,2015,41(10):68-72.
[5] Doghmane M Y,Lanzetta F,Gavignet E. Dynamic Characterization of a Transient Surface Temperature Sensor☆[J]. Procedia Engineering,2015,120:1245-1248.
[6]路立平,冯建勤,鹿晓力.温度传感器的热时间常数及其测试方法[J].仪表技术与传感器,2005,18(7):17-18.
[7]马毅,张宏宇.薄膜铂热电阻特性分析[J].计量与测试技术,2012,39(8):7-8.
[8] Boguhn D,Koepke M. Typical R(T,90)Characteristics of Platinum Thin-Film Resistance Thermometers in the Temperature Range from-50℃to 6 660℃[J]. International Journal of Thermophysics,2011,32(11-12):2379-2387.
[9]冯浩,张志杰,黄晓敏,等.基于NANMAC热电偶的时间常数测试技术研究(英文)[J]. Journal of Measurement Science\s&\Sinstrumentation,2014(4):1-4.
[10]崔佩佩,何强,韩壮志,等.用LabVIEW FPGA模块实现不同时钟域的数据连续传输[J].现代电子技术,2011,34(17):149-152.
[11] Bernhard F. Technische Temperaturmessung,Springer-Verlag,Berlin/Heidelberg,2004.
[12] Michalski L,Eckersdorf K,Kucharski J,et al. Temperature Measurement,Second Edition[M]. 2002.