Particle diameter distribution measurement apparatus and...

Details Particle diameter distribution measurement apparatus and... Particle diameter distribution measurement apparatus and...

2006-08-01

2006-08-01

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

For size of particles

By particle light scattering

Reexamination Certificate

active

07084975

ABSTRACT:
A particle diameter distribution measurement apparatus and method includes a sample cell that can be irradiated by a source of light. A plurality of detectors are positioned operatively adjacent to the sample cell to measure light interacting with a specimen in the sample cell. A storage unit stores values representative of outputs of the detectors for a plurality of standard particle sizes. The representation outputs extend across a range of detection for a plurality of detectors. A controller unit can perform a calibration based on the stored values and an actual measurement of one or more standard particle sizes that has the capability of providing a range of detection that will be inclusive of a standard particle size that is not available for measurement.

REFERENCES:
patent: 4801205 (1989-01-01), Tatsuno
patent: 6741350 (2004-05-01), Ikeda et al.
patent: 61-014543 (1986-01-01), None

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