新型深海地温梯度测量设备(FY2)研发  

A new equipment for deep-sea geothermal gradient measurement(FY2)

作　　者：李佳伟 陈洁 徐行[1] 潘飞儒 罗贤虎[1] 俞欣沁 罗新恒 LI Jiawei;CHEN Jie;XU Xing;PAN Feiru;LUO Xianhu;YU Xinqin;LUO Xinheng(Guangzhou Marine Geological Survey,Guangzhou 51076,China;Zhuhai Taide Enterprise Co.Ltd.,Zhuhai 519082,China)

机构地区：[1]中国地质调查局广州海洋地质调查局,广州510760 [2]珠海市泰德企业有限公司,珠海519082

出　　处：《海洋地质与第四纪地质》2021年第3期203-211,共9页Marine Geology & Quaternary Geology

基　　金：2018年广东省级促进经济发展专项资金(海洋经济发展用途)专项“天然气水合物先导区建设与资源区块优选项目”(GDME-2018D001);广东省珠海市泰德企业有限公司海洋技术领域院士工作站。

摘　　要：随着海底地热学研究的不断深入,对海底地热测量仪器的技术指标提出了更高要求。基于前期自主研发的FY1自容式微型温度测量记录仪,经过大量实践数据与经验积累,研制出新型的FY2自容式微型温度测量记录仪。为验证FY2的性能,在实验室恒温水槽和南海北部陆坡深水海域对FY1和FY2进行了仪器校验和比测,结果显示FY2的测量分辨率优于0.0001℃,测量准确度优于±0.0015℃,比测点的海底热流值为78 mW/m^(2)。实验结果证实FY2探针不仅具有高分辨率、高精度、性能稳定的特点,而且测量效率高,可为海底热流探测与研究提供新一代可靠的技术支持。The seabed geothermal research has become a common component of integrated marine geological survey nowadays and high requirements are raised to the technical performance of instruments for seabed measurement.Based on the FY1,the self-contained miniature temperature measurement recorder independently developed by Guangzhou Marine Geological Survey,a new type of self-contained miniature temperature measurement recorder,FY2 in abbreviation,was developed after summarization of previous practicce data and survey experiences.In order to verify the performance of the FY2,efforts have been devoted to the instrument calibration and the comparison of the FY2 to the FY1 in laboratories under a constant temperature flume as well as in the deep water area on the northern slope of the South China Sea.Results show that the resolution of the FY2 is higher than 0.0001℃,and the precision is higher than±0.0015℃.The seabed geothermal flow value of the measuring point is 78 mW/m^(2);indicating an excellent performance of the new equipment.The new equipment also has high efficiency,and may provide strong technical support for the research of seabed geothermal flow.

关 键 词：地温梯度 深海沉积物 海底热流 温度计 

分 类 号：P738.6[天文地球—海洋地质]