文章介绍了一种适用于室内大、中型环空模拟实验的测量装置。该装置可不接触式、连续地实时测量环形空间中固液二相流的固相浓度、其原理基于超声波在介质中传播时衰减的物理特性;结构简单,较为方便实用,克服了现有测试技术的不足,是目前较为理想的测量装置。文中所列实例证实,该装置的测量精度符合大、中型模拟实验研究的要求,可用于石油钻井和有关的其它专业。 This paper introduces a kind of measuring device suitable for indoor large and medium-sized annular simulation experiments. The device can measure the solid phase concentration of the solid-liquid two-phase flow in the annular space continuously and in real time without any contact. The principle of the device is based on the decaying physical characteristics of the ultrasonic wave propagating in the medium. The structure is simple, convenient and practical, overcomes the existing test technology The shortage is the ideal measuring device at present. The examples presented in this paper confirm that the device’s measurement accuracy meets the requirements of large and medium-sized simulation experiments and can be used in oil drilling and other related fields.