| 摘要 |
A system for detecting the presence of an object, it shape, length, size, etc., and if a heating material such as a hot melt adhesive applied to the object is applied to given places, or in the proper amount is accomplished by an infrared detection system which is not influenced by external disturbances. A radiant energy detection sensor is placed opposite a radiant energy source, and an object is moved between the radiant energy source and radiant energy detection sensor.
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