静水压力变化对NTC热敏电阻器电学特性影响  

EFFECT OF HYDROSTATIC PRESSURE VARIATION ON THE ELECTRICAL CHARACTERISTIC OF NTC THERMISTORS

作　　者：刘遵京 王军华[1,2,3] 汤新强 霍鹏[1,2,3,4] 刘熠 姚金城[1,2,3] 常爱民 LIU Zun-Jing;WANG Jun-Hua;TANG Xin-Qiang;HUO Peng;LIU Yi;YAO Jin-Cheng;CHANG Ai-Min(Key Laboratory of Functional Materials and Devices for Special Environments of CAS,Urumqi 830000,China;Xinjiang Key Laboratory of Electronic Information Materials and Devices,Urumqi 830000,China;Xinjiang Technical Institute of Physical&Chemical of CAS,Urumqi 830000,China;School of Materials Science and Optoelectronic Technology,University of Chinese Academy of Sciences,Beijing 100000,China)

机构地区：[1]中国科学院特殊环境功能材料与器件重点实验室,新疆乌鲁木齐830000 [2]新疆电子信息材料与器件重点实验室,新疆乌鲁木齐830000 [3]中国科学院新疆理化技术研究所,新疆乌鲁木齐830000 [4]中国科学院大学材料科学与光电技术学院,北京100000

出　　处：《海洋与湖沼》2022年第3期569-577,共9页Oceanologia Et Limnologia Sinica

基　　金：国家重点研发计划资助项目,2019YFC1408603号。

摘　　要：负温度系数(negative temperature coefficient,NTC)热敏电阻器由于在窄温区内具有极高的灵敏度,在海洋领域中有着广泛的应用,但深海应用中固有的高静水压力,对器件的测温准确度造成不利影响。为了更好地认识这种现象,以珠状NTC热敏电阻器为研究对象,利用海洋环境高压模拟装置,开展了静水压力作用对器件电学特性影响的研究,固定环境温度25℃和0℃,压力范围0~60 MPa,步长5 MPa。结果显示,随着静水压力的增大,NTC热敏电阻器的电阻值减小;环境温度25℃和0℃时,5~60 MPa的静水压力造成的漂移分别为-0.11%~-2.81%、-0.19%~-2.78%,等效于温度漂移分别为0.024~0.624℃、0.036~0.535℃。这为热敏电阻器在深海温度准确测量的提升提供了指引,有利于在海洋测温领域中更好的应用。Negative temperature coefficient(NTC) thermistors are widely used in the ocean field due to their extreme sensitivity in a small temperature range. However, high hydrostatic pressure in abyssal ocean is detrimental to the accuracy of temperature measurement of the device. We designed a device to simulate highpressure environment of ocean, with which the effect of hydrostatic pressure on the electrical characteristics of bead NTC thermistor was studied under ambient conditions of 25 ℃ and 0 ℃ in 5 MPa pressure interval in range of 0~60 MPa. The results show that the resistance value of NTC thermistor decreases with the increase of hydrostatic pressure, the drifts caused by hydrostatic pressures in range of 5~60 MPa was-0.11%~-2.81%,-0.19%~-2.78% at 25 ℃ and 0 ℃, respectively, being equivalent to a temperature drift of 0.024~0.624 ℃ and 0.036~0.535 ℃, respectively. This study provides guidance for improving the accuracy of temperature measurement in abyssal ocean and facilitates the application of NTC thermistor in the field of ocean temperature measurement.

关 键 词：NTC热敏电阻器 深海温度 高压模拟装置 压力效应 

分 类 号：P716[天文地球—海洋科学]