Apparatus and method for counting a series of progressively movi

Details Apparatus and method for counting a series of progressively movi Apparatus and method for counting a series of progressively movi

1999-04-12

2000-12-26

Wambach, Margaret R

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Counting animate or inanimate entities

377 10, G06M 1100

Patent

active

061671061

ABSTRACT:
A system for counting a series of progressively moving articles using one or more sidewardly positioned and angularly oriented ultrasonic transducers which bathe the articles with ultrasonic waves and receive echoes reflected backwardly therefrom. Distances to the articles are determined by measuring round-trip sonic travel times. Count adjustment signals are generated when articles pass through the fields of view of the transducers and are replaced by other articles at measurably different distances.

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