| 摘要 |
<p>1,166,287. Investigating particle suspensions electrically. COULTER ELECTRONICS Ltd. Nov.22, 1966 [Nov. 26, 1965], No.52317/66. Heading G1N. In Coulter type apparatus, fluid from a single source is drawn through a number of apertures of the same or different sizes, a single common electrode being arranged in the source of fluid and individual electrodes being arranged in the steams of fluid flowing through the apertures. In one embodiment, Fig.5 (not shown), a number of conventional aperture tubes (52), (53), (54) are immersed in the fluid (63), together with a common electrode (65). The tubes are connected to fittings (58), (59), (60) of a barrel (61) of a stop cock (62). In a second embodiment of a two aperture apparatus, Figs.1-4, Fig.1 (shown), a tube 10 is divided by a central partition 11, its upper end being bi-furcated to form two branches having the necessary outlets and each provided with an electrode, e.g. 24. Apertures 34, 35 are formed in wafers 38, 39 of glass or sapphire which are set in a flattened face 40 or faces (51, 52, Fig.4 not shown), at the lower end of the tube which is immersed in the fluid 31 under investigation together with one electrode 32. In a further embodiment, (Figs .10-12) Fig. 11, (shown), six wafers e.g. 129, having apertures e.g. 128, are mounted at varying heights in the side wall of a vessel 166 containing the fluid 146 and a common electrode 139. Inlet and outlet conduits, e.g. 133, 134, are mounted over the apertures each including an electrode e.g. 135. The bottom of the vessel is provided with an outlet and stop cock for drainage purposes. In another embodiment for investigating a flowing fluid, Figs.6-9 Fig.6 (shown), wafers 94, 95, 96 having apertures 91, 92, 93 are mounted on a plate 90 engaged in a seat 88 in the side of a conduit 86 through which the fluid is flowing. A common electrode 122 is provided in the conduit 86, and individual electrodes 116, 117, 118 in tubes 101, 102, 103 mounted over each aperture.</p> |
