Patent References 3043993 3713966 Monitoring a deposit on a travelling web Patent #: 4417934 InventorsAssigneeApplicationNo. 602295 filed on 11/21/1990US Classes:324/664, To determine water content324/689To determine water contentExaminersPrimary: Harvey, Jack B.Attorney, Agent or FirmForeign Patent References
International ClassG01R 027/26Foreign Application Priority Data1989-03-25 DEAbstractA device, for detecting a sufficient glue coating on a first surface of a paper strip to be adhesively bonded in a cigarette machine, includes a sliding plate having a plate surface engaging a second surface of the paper strip, opposite to the first surface, and over which the paper strip runs in a first direction. A plurality of capacitive sensors, for detecting presence of moisture in the glue coating, on the first surface of the paper strip, are directed toward the second surface of the paper strip, are mounted in recesses in the sliding plate and are arranged in a row extending transversely to the first direction. A control is coupled to the sensors for evaluating signals emitted from the sensors and for emitting a fault signal for controlling the cigarette machine when the moisture sensed in the glue coating is insufficient.Field of SearchWhere a material or object forms part of the dielectric being measuredTo determine water content Having fringing field coupling To determine water content Including a probe type structure RADIATION SOURCE FOR SENSING CONDITION OR CHARACTERISTIC EJECTION OR REJECTION OF FINISHED ARTICLE DUE TO DETECTED OR SENSED CONDITION SENSING UNIQUE CHARACTERISTIC OR SPECIFIC CONDITION OF FINISHED PRODUCT | |