Method and device for the correction of errors caused by part chen coincidence in the determination of the part of the same total volume

摘要

In an apparatus which develops output signal data, a portion of a liquid containing particles is caused to flow through a sensing zone. Ideally the particles go through one at a time. Each particle sensed generates a particle signal having an amplitude proportional to the size or volume of the particle. The particle signal is utilized for producing the output signal data. The output signal data is a measure of the total volume of particulate matter in a quantity of liquid containing particles and is subject to error due to the occasional simultaneous presence of particles in the sensing zone which is termed coincidence.P PAn error correction signal is also developed by the apparatus which varies in accordance with the repetition rate of particles passing through the sensing zone. The error correction signal is employed to correct the output signal data which is subject to error due to particle coincidence.