G - Physics – 01 – N
Patent
G - Physics
01
N
340/124.3
G01N 27/72 (2006.01) B65G 43/02 (2006.01)
Patent
CA 2040246
- 18 - Abstract of the Disclosure This disclosure relates to a method and apparatus for automatically detecting any longitudinal tear that is generated in a conveyor belt during its operation, utilizing detectable elements embedded at a plurality of points of the conveyor belt. An externally installed sensor and a control unit are also provided. At each of the aforementioned points of embed- ment in the belt, a set of at least two of the detectable ele- ments is embedded, and the control unit is arranged (a) to receive and process signals from the sensor, the signals having a varied intensity corresponding to the number of detectable elements in a given embedment point, (b) to average the intens- ities of a plurality of the signals for the given embedment point, and (c) to judge, on the basis of the average obtained in (b), the presence or absence of breakage of detectable element or elements at the given embedment point. The above- mentioned arrangement is able to judge whether one of the two detectable elements is broken, and the judgment is not affected by variation of the distance between detectable elements and the sensor. If breakage of a single detectable element of any set is identified, the affected element may be repaired during an outage of the conveyor. In this way, breakage of two ele- ments of a point without any longitudinal tear will be eliminated.
Bando Kagaku Kabushiki Kaisha
G. Ronald Bell & Associates
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