目前正在使用的原位测定法,主要是脉冲加热法和连续加热线源法。脉冲加热法的探针已被广泛应用于海洋地热研究中。但这种探针的直径较大,其放热时间常数也较大,从而要用较长的测量时间,连续加热线源法的探针直径较小,其热时间常数也小,精度较高。原位测定法的发展方向将是进一步提高测量精度,缩短探针在海底的停留时间。实时数据处理技术正在研制之中。 In situ measurements currently in use are mainly pulsed heating and continuous heating source methods. Pulse heating probe has been widely used in marine geothermal research. However, this probe has a large diameter and a large exothermic time constant, which requires a longer measuring time. The diameter of the probe of the continuous heating wire source method is small, the thermal time constant is small, and the accuracy is high . In situ determination of the direction of development will be to further improve the measurement accuracy, shorten the residence time of the probe in the sea. Real-time data processing technology is under development.