Particulate info to field units

Details Particulate info to field units Particulate info to field units

2006-06-06

2006-06-06

Nguyen, Tu T. (Department: 2877)

Optics: measuring and testing

By particle light scattering

With photocell detection

Reexamination Certificate

active

07057724

ABSTRACT:
An improvement in a system that includes a group of field units (10, 10A) that each identifies unknown microscopic particles by use of a computer that compares an unknown particle interrogation pattern to the interrogation patterns of a set of known species of particles, which facilitates upgrading of the group of field units. Each field unit is connected by a communication link (84) to a central station (80). The central station can send interrogation patterns of a new species of particle to the field unit computers, which store them in a known-species-particle memory (34) that holds patterns of previously known species of particles. The field unit stores the patterns of unidentified particles in a memory (90) and notifies the central station when it has detected an invasion of a new species.

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