Methods and apparatuses for correcting coincidence count errors in a particle analyzer having a sensing zone through which the particles flow
Particle analyzer of the Coulter type including coincidence error correction circuitry
Particle analyzing system
Conductivity cell for particle study device
Combined particle sorter and segregation indicator
Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques
Particle detector independent of errors caused by changes of electrolyte conductivity and electrode polarization
ApplicationNo. 023207 filed on 02/13/1998
US Classes:702/100, Fluid or fluid flow measurement702/29Particle size determination
ExaminersPrimary: Callahan, Timothy P.
Assistant: Nguyen, Linh
Attorney, Agent or Firm
International ClassG01N 015/02
AbstractAn 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.