B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
341/40
B21B 37/00 (2006.01) B02C 25/00 (2006.01) G01F 23/22 (2006.01) G01G 7/00 (2006.01) G01G 13/28 (2006.01) G01R 21/06 (2006.01) G05D 9/00 (2006.01) G05D 9/12 (2006.01)
Patent
CA 1135364
ABSTRACT OF THE DISCLOSURE The degree of fullness of a mill driven by an electric motor is measured by, firstly, measuring the variation of the power input of the mill and, secondly, determining the degree of fullness on the basis of the degree of variation of said power input, whereby use is made of test or calibration measurements performed, previously with different degrees of fullness. Perferably a current or voltage signal descriptive of the power input is created and then a signal representing the degree of full- ness is generated as proportional to the amplitude of said voltage or current signal.
335012
Karkkainen Jouko R.t.
Lehikoinen Hannu S.
Miettunen Jorma K.
Mustikkamaki Terho H.
Fetherstonhaugh & Co.
Outokumpu Oy
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