基于DPHP技术测量热导率的简化算法  

A Simplified Algorithm for Sediment Thermal Conductivity Measured by Dual-Probe Heat-Pulse Technique

作　　者：李官保[1] 刘保华[1] 丁忠军[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海洋科学进展》2010年第2期237-243,共7页Advances in Marine Science

基　　金：国家高技术研究发展计划项目--天然气水合物的热流原位探测技术(2006AA09A203)和海底热流原位高精度探测原理与技术(2004AA616060)

摘　　要：双针热脉冲(DPHP)技术在海底沉积物热导率的原位测量中有很好的应用前景,但其算法复杂,而且存在累积误差。通过对DPHP技术理论模型的分析,提出了一个简化算法,探讨了算法的理论依据和适用条件。对实测数据进行运算的结果表明,该算法能够有效简化热导率的计算,并且误差在合理范围内。The dua the thermal condu 1-probe heat-pulse technique （DPHP） is of good application prospect in measuring in-situ etivity of seafloor sediments, but the algorithm for sediment thermal conductivity by means of this technique is complicated and the cumulative errors are usually present. To solve this prob- lem, a simplified algorithm is proposed after analyzing the theoretical model of DPHP technique, and its theorerical basis and application conditions are discussed. The results from the calculations of measured data have indicated that the proposed algorithm can effectively simplify the calculation of sediment thermal conductivity and the errors can be remained within a reasonable limit.

关 键 词：双针热脉冲(DPHP)技术 热导率 算法 原位测量 

分 类 号：P631.3[天文地球—地质矿产勘探]