Method and apparatus for measuring the electrophoretic mobility

Details Method and apparatus for measuring the electrophoretic mobility Method and apparatus for measuring the electrophoretic mobility

1976-05-17

1978-06-27

Engle, Samuel W.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356 28, 356105, 356106R, 250574, 204180R, G01N 2100, G01P 336, B01K 500, G01B 902

Patent

active

040971538

ABSTRACT:
Coherent electromagnetic radiation is directed upon particles suspended in a fluid medium to produce scattered radiation. The particles are subjected to an electric field alternating between a first and second intensity. The coherent radiation and the scattered radiation are directed upon a detector to produce a heterodyne signal the spectrum of which is analyzed. The spectral composition of the heterodyne signal obtained with the first intensity of applied electric field is compared with the spectral composition obtained with the second intensity of applied electric field to provide a measurement of the electrophoretic mobility of the suspended particles.

REFERENCES:
patent: 3539262 (1970-11-01), Pryor
patent: 3553462 (1971-01-01), Johnson
patent: 3649125 (1972-03-01), Lehmann
patent: 3708402 (1973-01-01), Bean
patent: 3732014 (1973-05-01), Uzgiris
patent: 3740553 (1973-06-01), Whetten
patent: 3866055 (1975-02-01), Pike
patent: 3875516 (1975-04-01), Thomas

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