ANTI-DITHER OPTICAL CONTAINER SENSOR

Apparatus for detecting containers of predetermined diameter that includes a pair of optical proximity sensors positioned adjacent to a container conveyor such that light energy from the sensors is incident sequentially on the containers as the containers pass on the conveyor adjacent to the sensors...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	AHL, ALAN D, WAUGAMAN, JOHN L, NICKS, TIMOTHY J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES CALCULATING COLORIMETRY COMPUTING CONVEYING COUNTING COUNTING MECHANISMS COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR DETECTING MASSES OR OBJECTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GEOPHYSICS GRAVITATIONAL MEASUREMENTS HANDLING THIN OR FILAMENTARY MATERIAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PACKING PERFORMING OPERATIONS PHYSICS PNEUMATIC TUBE CONVEYORS RADIATION PYROMETRY RADIO DIRECTION-FINDING RADIO NAVIGATION SHOP CONVEYOR SYSTEMS STORING TESTING TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	Apparatus for detecting containers of predetermined diameter that includes a pair of optical proximity sensors positioned adjacent to a container conveyor such that light energy from the sensors is incident sequentially on the containers as the containers pass on the conveyor adjacent to the sensors. The sensors are adjustably positionable with respect to each other such that the sensors are spaced from each other in the direction of container motion on the conveyor. An electronic circuit is coupled to the sensors for detecting passage of containers on the conveyor while ignoring dithering of the containers. In the preferred embodiment of the invention, the sensors are mounted on a common support having a scale for measuring separation between the sensors. Printed indicia in units of container diameter, preferably in both English and metric units, is affixed to the support adjacent to the scale. One of the sensors is mounted on the support adjacent to a "zero" reference point on the scale indicia, and the other sensor is adjustably positionable on the support adjacent to the scale. The support in the preferred embodiment of the invention takes the form of a housing enclosing the sensors and having an elongated window parallel to the conveyor through which containers on the conveyor are exposed to the sensors.