Document Type and Number:
Japanese Patent JPH0511779
Kind Code:
B2
Abstract:
PCT No. PCT/SE85/00166 Sec. 371 Date Nov. 27, 1985 Sec. 102(e) Date Nov. 27, 1985 PCT Filed Apr. 9, 1985 PCT Pub. No. WO85/04716 PCT Pub. Date Oct. 24, 1985.The invention relates to a method and device for measuring and regulating the concentration, preferably of a fibre suspension, with the aid of a blade (1) pivotally suspended in the suspension. The blade (1) is caused to pivot such that its trailing end (8) moves between two end positions (A,B) in the suspension for providing a predetermined angular stroke ( alpha ). Time measurement is carried out when the trailing edge (8) of the blade (1) moves through its stroke from its upper end position (A) to its lower end position (B). The time obtained is a parabolic function of the concentration and varies in response to the shear force resistance in the fibre suspension of the blade (1) during its angular stroke, and thus in response to the concentration of solid substances in the suspension.
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Inventors:
RUNDOBERUI PEETERU
Application Number:
JP50189485A
Publication Date:
February 16, 1993
Filing Date:
April 09, 1985
Export Citation:
Assignee:
BEE TEE GEE KERE INBENTEINGU AB
International Classes:
G01N15/06; G01N11/10; G05D11/13; G01N33/34
Next Patent: SPEECH PRIVACY PROTECTIVE DEVICE