Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Erosion
Patent
1974-07-02
1976-02-03
Miller, Jr., Stanley D.
Electricity: measuring and testing
Determining nonelectric properties by measuring electric...
Erosion
235 92PC, 2351513, 328111, 328115, G01N 2700, H03K 520
Patent
active
039367410
ABSTRACT:
A method and apparatus for correcting a particle pulse count subject to coincidence error is disclosed wherein particle pulses, developed in response to passage of particles in a particulate system through a sensing zone, are counted for a predetermined period of time. The predetermined period of time is increased or extended in response to each pulse counted by a time increment that is a function of a characteristic of the counted pulse, such as the pulse width, duration, or amplitude. The total additional time period allows the counting of additional particle pulses such that the total count at the end of the extended time period is an error corrected count for the number of particles detected in the predetermined time period.
REFERENCES:
patent: 3171892 (1965-03-01), Pantle
patent: 3600688 (1971-08-01), Booth
patent: 3611157 (1971-10-01), Hughes
Campbell Stephen
Coulter Wallace H.
Doty Edward Neal
Hogg Walter R.
Longman Millard D.
Coulter Electronics Inc.
Miller, Jr. Stanley D.
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