Electromagnetic flow rate measuring apparatus and method for com

Details Electromagnetic flow rate measuring apparatus and method for com Electromagnetic flow rate measuring apparatus and method for com

1996-08-30

1998-09-15

Gellner, Michael L.

Weighing scales

Self-positioning

Electrical current generating or modifying

177 16, 177 60, 177 50, 222 55, 222 59, G01G 1114, G01G 1300, B67D 508

Patent

active

058082425

ABSTRACT:
An electromagnetic flow rate measuring apparatus measures and calculates a flow rate of granules based on a measurement of capacitance which changes according to the quantity of the granules flowing at a granule passage. The measuring apparatus includes a granule flow pipe which is coupled to the granule passage and is provided in the course of the granule passage, a capacitance detector provided to the granule flow pipe, shutters respectively provided at an upper end and a lower end of the granule flow pipe, for cutting off the flow of granules, the shutters being individually operable, and a load cell type weight detector independently supporting the granule flow pipe. The shutters, the load cell type weight detector, and the capacitance detector are connected to a calculation control device. The measuring apparatus provides a flow rate which is not influenced by the moisture content or the density of the granules.

REFERENCES:
patent: 4461363 (1984-07-01), Loy
patent: 4716768 (1988-01-01), David et al.
patent: 4917199 (1990-04-01), Loshbough
patent: 5038973 (1991-08-01), Gmur
patent: 5078220 (1992-01-01), Briefer
patent: 5343761 (1994-09-01), Myers

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