Automated miniature centrifuge

Details Automated miniature centrifuge Automated miniature centrifuge

1992-03-13

1994-01-18

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 6169, 356 39, 356435, 356440, 356246, 422 72, 436 45, 436 70, 494 10, 494 16, G01N 2107, B04B 104

Patent

active

052791505

ABSTRACT:
A measurement device is provided for determining relative proportions of at least two materials forming a liquid and having different densities and different responses to light. A transparent capillary size cuvette tube confines the sample liquid, and is attached radially on a rotor wheel, preferably by a holder which seals an outer end of the tube and provides a package for manipulation of the tube without exposure to the sample. A motor controlled by a processor turns the rotor wheel, separating the materials by their densities. A linear light source illuminates the tube, and a linear array of photosensors defining pixels produces a signal which varies where the different materials abut. The pixels are counted, to locate the stratum between materials and the result is displayed as a percentage of total volume, suitable for hematocrit measurements. The cuvette tube has a fin for assisting in manipulation, is shaped as an elongated lens, and is cut to a spherical end surface to assist in sample collection.

REFERENCES:
patent: D259140 (1981-06-01), Pross et al.
patent: 3679367 (1972-07-01), Negersmith et al.
patent: 3807874 (1974-04-01), Gropper
patent: 3937581 (1976-02-01), Rodel et al.
patent: 4115011 (1978-09-01), Brunsting
patent: 4128400 (1978-12-01), Muhlbock et al.
patent: 4640896 (1987-02-01), Farrell et al.
patent: 4680475 (1987-07-01), Tansony et al.
patent: 4683579 (1987-07-01), Wardlaw
patent: 4695164 (1987-09-01), Zivitz et al.

Affiliated with

Also associated with

Rating

Automated miniature centrifuge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automated miniature centrifuge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated miniature centrifuge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1130433