适用于极地海底热流调查的低温段泥温传感器低温工作特性分析  

Analysis of Low Temperature operation Characteristics of Low Temperature Section Mud Temperature Sensor Suitable for Polar Heat Flow Investigation

作　　者：冯志涛[1] 李国富[1] 杨光兵 秦玉峰[1] FENG Zhi-tao;LI Guo-fu;YANG Guang-bing;QIN Yu-feng(National Ocean Technology Center,Tianjin 300112,China;First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,Shandong Province,China)

机构地区：[1]国家海洋技术中心,天津300112 [2]自然资源部第一海洋研究所,山东青岛266061

出　　处：《海洋技术学报》2020年第3期49-54,共6页Journal of Ocean Technology

基　　金：国家自然科学基金资助项目(41306093,41706038);山东省自然科学基金资助项目(ZR2017QD005);中央级公益性科研院所基本科研业务费专项资金资助项目(2017Q01);天津市自然科学基金资助项目(18JCQNJC08700)。

摘　　要：本文基于极地海底地热流调查需求,针对在极地严酷的低温环境下泥温测量电路容易出现的失效、温度漂移等问题进行了分析,并采用了恒流源测温方式,有效降低了自发热和引线电阻干扰,并简化电路结构,增强了电路低温状态工作稳定性。本文阐述了低温段泥温传感器工作原理,结合调查实践确定了泥温传感器的主要设计参数;对电路结构进行详细拆解分析,分析各模块在低温条件下存在的失效风险及低温工作性能;对实际电路进行试验验证,利用数据分析传感器的测量精度,并在低温条件下对泥温传感器进行了实测。测试结果表明,低温段泥温传感器在低温条件下工作稳定,数据稳定性和一致性表现良好。This paper is based on the needs of the polar seabed geothermal flow survey,and analyzes the problems such as failures and temperature drifts that are easy to occur in the extremely harsh temperature environment.In this paper,the constant current source temperature measurement method is innovatively used to effectively reduce the self-heating and lead resistance interference.At the same time,the circuit structure is simplified and the working stability of the circuit at low temperature is enhanced.Firstly,the working principle of the low temperature section mud temperature sensor is introduced.The main design parameters of the mud temperature sensor are determined by the investigation practice.Then the circuit structure is analyzed in detail,and the failure risk of each module under low temperature conditions is analyzed in detail.Its low temperature performance.Finally,the actual circuit is tested and verified,and the measurement accuracy of the sensor is analyzed by the data,and the mud temperature sensor is measured under low temperature conditions.The test results show that the low temperature section mud temperature sensor works stably under low temperature conditions,and the data stability and consistency are good.

关 键 词：海底热流 低温段 低温特性分析 泥温测量 

分 类 号：P733[天文地球—物理海洋学]