| 摘要 |
<p>A measurement accessory with multiple transmission-reflections uses for an infrared spectrometer, laid accessory is arranged in the sample cavity of the infrared spectrometer. Said accessory includes two parallel plan mirrors (7, 8) and a sample holder fixed between the two mirrors (7, 8). Said sample holder can fix the sample piece (9) between the two plan mirrors (7, 8) and make the sample piece parallel with plan mirrors (7, 8). During measuring, the infrared ray emitted from infrared spectrometer (17) forms a certain angle incident to the space between said plan mirrors and reflects for several times between the two parallel plane mirrors (7,8) and the sample piece (9) is measured with multiple transmission-reflections by the infrared ray. Then the infrared ray (20) enters into the detector of infrared spectrometer.</p> |
