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CMS－200／300是代表世界先进水平的岩芯物性分析仪器，文章综合分析了它的测试原理，测试方法，系统流程，系统结构，软件功能及测定多数的应用。其测试原理是在非稳态流理论的基础上，根据Forchheimer方程推导出渗透率计算式；测试方法是让一已知体积的气罐充满氦气到一初始压力，然后通过岩芯放出，根据测出的罐内压力变化率即可计算出岩芯的渗透率、滑脱因子及惯性系数；在系统流程的基础上建立的系统结构包括液压岩芯夹持器总成、岩芯自动装卸系统、标准体积罐及其管路和传感器、计算机和打印机；应用软件为菜单式结构，模块独立性强，具有系统初始化，参数测量，数据管理及系统诊断等功能；指出了测定参数的应用。
CMS-200/300 is the representative of the world’s advanced rock physics analysis instrument, the article comprehensive analysis of its testing principles, test methods, system flow, system structure, software functions and determination of the majority of applications. The test principle is based on the unsteady flow theory, based on the Forchheimer equation derived permeability formula; test method is to have a known volume of gas filled helium gas to an initial pressure, and then released through the core, according to The measured rate of change of pressure in the tank can calculate the core permeability, slippage factor and the inertia coefficient. The system structure based on the system flow includes the hydraulic core holder assembly, core loading and unloading system, Standard volume tank and its piping and sensors, computers and printers; application software for the menu structure, modular independence, with system initialization, parameter measurement, data management and system diagnostics; pointed out the application of the measurement parameters.