| 摘要 |
<p>PURPOSE:To provide a sample case for dissolved-in-liquid gas concentration measuring equipment. to prevent the occurrence of convection in sample with the increase of the flow velocity per given flow rate of the sample flowing through the sample case, improve measuring precision and shorten a measuring time. CONSTITUTION:A sample case 10 comprises a housing 12, a plate cell 18 and annular seals 20, 20. The housing 12 is formed with two plates 14, 14. The plates 14 have grooves 16, 16 at the centers of the mutually opposite faces. The plate cell 18 and two annular seals 20, 20 are arranged so as to be fitted into the grooves 16, 16 and pressure-held between the plates 14, 14. Sample flow passages 30, 30 are partitioned with the side face of the plate cell 18, the inside faces of the plates 14, 14 and the inner edges of the seals 20, 20 and formed on both side faces of the plate cell 18. In the sample flow passage 30, sample flows to be measured at the flow entrance 22 and the flow exit 24.</p> |
