Use of modulated stimulus to improve detection sensitivity for s

Details Use of modulated stimulus to improve detection sensitivity for s Use of modulated stimulus to improve detection sensitivity for s

1974-09-26

1976-03-02

Smith, Alfred E.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356 39, 356103, 356181, 2351513, 324 71CP, G01N 1502, G01N 3316, G01J 346

Patent

active

039414795

ABSTRACT:
Method and apparatus for analyzing blood or other biological fluids containing cells or particles of interest by passing them sequentially through a narrow flow chamber where a repetitive physical stimulus, such as a plurality of beams of light, is spaced at intervals to form a code along the length of the flow chamber to elicit responses from the particles. These responses are then decoded and used to classify the particles according to type.

REFERENCES:
patent: 3680961 (1972-08-01), Rudd
patent: 3819270 (1974-06-01), Huschfeld
patent: 3830568 (1974-08-01), Allen

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