Conveyor belt monitor

Details Conveyor belt monitor Conveyor belt monitor

1984-06-13

1986-03-25

Levy, Stewart J.

Measuring and testing

Vibration

By mechanical waves

73159, 73644, 340676, G01N 2904

Patent

active

045775028

ABSTRACT:
Flaws may be detected in conveyor belting in motion by transmitting ultrasound to the belting at one zone, detecting ultrasound propagated by the belting from the one zone to another zone spaced apart from the first and issuing a signal responsive to any ultrasound detected, whereby a signal is obtained which is indicative of discontinuities in the belting intermediate the zones. Preferably, a column of water extending between an ultrasonic transducer and the belt is used for ultrasonic coupling during motion of the belt, and tracking means are provided to maintain the column at constant length. With proper frequency selection, ultrasound can be transmitted a surprising distance through conveyor belting made of rubber-like material.

REFERENCES:
patent: 3190111 (1965-06-01), Trussell et al.
patent: 3289468 (1966-12-01), Van Der Veer et al.
patent: 4253337 (1981-03-01), Vasile
patent: 4291577 (1981-09-01), Baum et al.
patent: 4519249 (1985-05-01), Hunt

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