基于磁性液体的岩样总体积测试方法

Method of Measuring Total Volume of Rock Samples Based on Magnetic Fluid

针对现有浮力法测定岩样总体积受人为因素影响大,以及丈量法测定岩样总体积对岩样外形严格限定的缺点,提出了岩样总体积测试的双密度测定计算公式。在实验验证的基础上,利用磁性液体在磁场作用下密度可变、可控的特性,探索设计了基于磁性液体的岩样总体积测定装置,建立了基于磁性液体的岩样总体积测定方法和流程。这种新方法对于减小测定岩样总体积过程中的人为误差、提高测试精度等方面均具有一定的优势,具有良好的推广应用前景。

The existing buoyancy method of measuring the total volume of rock samples is artificially influenced and the dimension measure-ment method for determining the total volume of rock samples has strict limitation on the shape of rock samples. For solving these problems, a du-al density determination formula is proposed to test the total volume of rock samples. Based on experiments, the properties that magnetic fluid density is variable and controllable in the magnetic field is used to design a measuring device for testing total volume of rock samples based on magnetic fluid and to establish methods and processes for measuring the total volume of rock samples based on magnetic fluid. This new method has some advantages in reducing the artificial errors and improving test accuracy in the measurement process, and has good application prospects.