发明名称 Method and means of rapidly distinguishing a simulated diamond from natural diamond
摘要 A simulated diamond such as crystalline cubic zirconia, which has optical properties very similar to natural diamond and so is difficult to distinguish optically from natural diamond, is distinguished from natural diamond by measuring its thermal conductivity which is significantly different from the thermal conductivity of natural diamond, by measuring the temperature of a heated probe held against the simulated diamond as an indication of the simulated diamond thermal conductivity. In a preferred embodiment of the present invention, a controlled amount of heat energy is generated at the probe and thereafter, while the probe is held against the simulated diamond, the temperature of the probe is detected as a measure of relative thermal conductivity of the simulated diamond to the natural diamond.
申请公布号 US4488821(A) 申请公布日期 1984.12.18
申请号 US19820444212 申请日期 1982.11.24
申请人 CERES ELECTRONICS CORPORATION 发明人 WENCKUS, JOSEPH F.
分类号 G01N25/18;G01N33/38;(IPC1-7):G01N25/18 主分类号 G01N25/18
代理机构 代理人
主权项
地址