G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/00 (2006.01) B02C 25/00 (2006.01) G01F 23/00 (2006.01) G01R 17/04 (2006.01) G01R 21/00 (2006.01) G01R 23/00 (2006.01) H03K 5/19 (2006.01)
Patent
CA 2059352
The invention relates to a method and apparatus for measuring the degree of fullness of a mill, which measurement makes use of the power fluctuations affecting the electric motor of the mill. In the measurement of the degree of fullness according to the invention, the advantageously standard-frequency power oscillation, caused by the lifting beams of the mill casing and affecting the electric motor of the mill, is utilized. In order to synchronize the measurements, outside the circumference of the mill, there is installed a measuring sensor, and on the mill circumference, a counterpart corresponding to the sensor. In addition to this, the measuring sensor and the power transmitter of the electric motor of the mill are advantageously connected to the measuring processor.
G. Ronald Bell & Associates
Miettunen Jorma Kalervo
Outokumpu Electronics Oy
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