| 摘要 |
1,150,775. Electro-chemical analysis. CESKOSLOVENSK‡ AKADEMIE VED. July 5, 1966 [July 6, 1965], No.30164/66. Heading G1N. Also in Division G2] Apparatus for measuring a parameter of a liquid comprises a cell having an elongated bore 1 which is inclined to both the horizontal and vertical and is either (a) provided with end windows 2, 3, and appropriate devices for making optical investigations or (b) electrodes in both ends of the cell connected in an electric circuit for measuring the electrical conductivity of the liquid, there being an inlet duct 8' either at the lower or upper end of the cell and a discharge duct 16 at the lowest point of the cell and inter-connections between valves, pumps or other operating members to ensure that the liquid is introduced into and removed from the cell in accordance with a predetermined programme. After introducing the liquid through duct 8' and making the required measurement, the valve 10 may be closed by electromagnet 9, and the incoming liquid to reactor 7 accommodated by having resilient walls to reactor 7 or tube 8 or by having sections of liquid separated by gas bubbles so that the contents are compressible. Alternatively the excess liquid may accumulate in a tube 23 or be drawn thereinto by a piston 24 and cylinder 25. The cell may be emptied by opening valve 17 and draining through duct 16, either under gravity or with the assistance of pump 18, or the liquid may leave the cell through tube 12 connected to a pump 14 and/or a source of high or low pressure gas 15. Alternatively the cell may be flushed by admission of gas under pressure through tube 12. The cell may have an upper and lower channel (6, 20, Fig. 2 not shown) so that light particles or gas bubbles, and heavier particles, respectively, are out of the central region in which the optical investigation takes place. |
