Data processing: measuring – calibrating – or testing – Calibration or correction system – Fluid or fluid flow measurement
Patent
1998-02-13
2000-09-19
Callahan, Timothy P.
Data processing: measuring, calibrating, or testing
Calibration or correction system
Fluid or fluid flow measurement
702 29, G01N 1502
Patent
active
061225991
ABSTRACT:
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.
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Callahan Timothy P.
Nguyen Linh
Nirmel Chittaranjan
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