Friction-independent mass flow meter

Details Friction-independent mass flow meter Friction-independent mass flow meter

1998-01-09

1999-09-14

Oen, William

Measuring and testing

Volume or rate of flow

By measuring thrust or drag forces

G01F 130

Patent

active

059525843

ABSTRACT:
The invention relates to a sensor member of a mass flow measuring apparatus on a combine harvester, in which the surface of the sensor member includes both curved and straight portions. The lengths (.theta..sub.m,L) of the curved and straight portions are optimised to minimise the effects of changes in coefficient of friction (.mu.) on measured mass flow rate values of bulk materials on the sensor member.

REFERENCES:
patent: 4067238 (1978-01-01), Oetiker
patent: 4765190 (1988-08-01), Strubbe
patent: 5343761 (1994-09-01), Myers
patent: 5495773 (1996-03-01), Olesen
patent: 5752545 (1998-05-01), Vienneau et al.
patent: 5763652 (1998-04-01), Strubbe
patent: 5837906 (1998-11-01), Palmer
European Patent Application 9601889.1.

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