초록 ▼

An apparatus for analyzing particles suspended in a fluid. The fluid has electrical properties different from that of the particles. The fluid and particles move from a first fluid containing portion to a second fluid containing portion through a conduit or aperture. A first pair of electrodes, each

An apparatus for analyzing particles suspended in a fluid. The fluid has electrical properties different from that of the particles. The fluid and particles move from a first fluid containing portion to a second fluid containing portion through a conduit or aperture. A first pair of electrodes, each electrode of the pair being in a respective fluid containing portion. A constricted electrical path is defined between the first and second electrodes, and the path extends along the aperture. At least one other pair of electrodes is positioned in a non-encircling arrangement, and are aligned with each other and transversed to the constricted electrical path. This configuration eliminates many common errors suseptible to other devices.

대표청구항 ▼

[ What is claimed is:] [15.] An apparatus for analyzing particles suspended in a fluid having electrical properties different from that of the particles, as the fluid and particles move from a first fluid containing portion to a second fluid containing portion, the apparatus comprising:a conduit cre

[ What is claimed is:] [15.] An apparatus for analyzing particles suspended in a fluid having electrical properties different from that of the particles, as the fluid and particles move from a first fluid containing portion to a second fluid containing portion, the apparatus comprising:a conduit creating a path permitting fluid communication between the first and second containing portions, said path having a longitudinal axis and said conduit defining a fluid constraining path in a direction along said longitudinal axis;a first pair of electrodes, said first pair of electrodes including a first electrode located in the first fluid containing portion and a second electrode located in the second fluid containing portion;a first constricted electrical path between the first and second electrodes, said first constricted electrical path extending along said fluid constraining path;a second pair of electrodes, said second pair of electrodes including a third electrode and a fourth electrode, said third and fourth electrodes being positioned in a non-encircling arrangement, and defining a unique line therebetween extending in a direction transverse to said longitudinal axis;a third pair of electrodes, said third pair of electrodes including a fifth electrode and a sixth electrode and defining a corresponding line therebetween extending in a direction transverse to the longitudinal axis and transverse to said direction of the line between the third and fourth electrodes;a fourth pair of electrodes located downstream from said second and third pairs of electrodes, said fourth pair of electrodes including a seventh electrode and eighth electrode and defining a corresponding line between said seventh and eighth electrodes extending in a direction transverse to said longitudinal axis; anda fifth pair of electrodes located downstream from said second and third pairs of electrodes, said fifth pair of electrodes including a ninth electrode and a tenth electrode and defining a corresponding line between said ninth and tenth electrodes extending in a direction transverse to the longitudinal axis and transverse to said direction of the line between the seventh and eighth electrodes.