| 摘要 |
<p>PURPOSE:To eliminate the need for a complex adjustment, etc., of light axis and simplify the designing by forming a wavelength selection means and an infrared ray detection means in one piece with a sample chamber. CONSTITUTION:A measurement sample, for example milk constituent, is fed to the INLET of a sample chamber S by a liquid-feeding pump and then a sample is homonized by a homonizer 8 driven by a lamination piezoelectric element 7. The homonized milk constituent is led to a part where infrared rays are applied and interference filters 3-1 to 3-6 are installed, and then a pyroelectric type infrared ray detector D measures the presence or absence of the absorption of infrared rays. An attenuator 4 is moved so that the output of the detector D can be reduced to 0 for the measurement. Since the amount of travel is proportional to the content of constituents, the amount of travel is calculated, displayed, and printed by a CPU. Therefore, since a wavelength selection means and an infrared ray detection means are formed in one piece with the sample chamber, an optical system can be miniaturized and hence the entire device can be miniaturized. Also, the need for a complex light axis adjustment can be eliminated, thus simplifying the designing of the device.</p> |
