Correction of material layer volume measurements

Details Correction of material layer volume measurements Correction of material layer volume measurements

1989-01-30

1990-09-04

Willis, Davis L.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

73 611R, G01N 2107

Patent

active

049539752

ABSTRACT:
Centrifuged material layer volume measurements are made in a transparent capillary tube containing an elongated float which expands the layers being measured. The extent of layer expansion will vary depending on the tube bore diameter and the float diameter. The tube bore diameter and float diameter for each tube/float pair are measured, and an indication of the difference between the two is marked on the tube. When the volume determinations are made, the measured difference between the tube bore diameter and the float diameter is taken into account before calculating actual layer volume malues.

REFERENCES:
patent: 3492396 (1970-01-01), Dalton et al.
patent: 4027660 (1977-06-01), Wardlaw et al.
patent: 4082085 (1978-04-01), Wardlaw et al.
patent: 4137755 (1979-02-01), Wardlaw et al.
patent: 4558947 (1985-12-01), Wardlaw
patent: 4683579 (1987-07-01), Wardlaw
patent: 4774965 (1988-10-01), Rodriguez et al.

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