Object thickness detection device and method and contact type image sensing system
A thickness detection and contact technology, which is applied in the detection field, can solve the problem of low thickness accuracy of objects and achieve the effect of improving accuracy
Inactive Publication Date: 2014-07-30
WEIHAI HUALING OPTO ELECTRONICS CO LTD
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[0005] The main purpose of the present invention is to provide an object thickness detection device, method and contact image sensing system to solve the problem of low accuracy of object thickness detection
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[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0027] It should be noted that the terms "fir...
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The invention discloses an object thickness detection device and method and a contact type image sensing system. The object thickness detection device comprises a signal emitting mechanism, a signal receiving mechanism and a phase difference detection mechanism. The signal emitting mechanism is used for emitting a first signal including a first phase position to an object to be detected, and the first signal is used for detecting the thickness of the object to be detected. The signal receiving mechanism is used for receiving a second signal, wherein the first signal is reflected or transmitted by the object to be detected, and the second signal includes a second phase position. The phase difference detection mechanism is connected with the signal emitting mechanism and the signal receiving mechanism and used for determining the thickness range of the object to be detected according to the phase difference between the first phase position and the second phase position. Through the object thickness detection device and method, the problem that thickness detection of the object is low in precision is solved, and the effect of improving the precision of thickness detection of the object is achieved.
Description
technical field [0001] The invention relates to the detection field, in particular to an object thickness detection device, method and contact image sensing system. Background technique [0002] On-line continuous thickness measurement of sheet-like items, such as paper, bills, plastic films, textile items, etc., is playing an increasingly important role in the production, testing, processing, and recycling of their products. At present, the object thickness detection technologies used in various industries mainly include the use of Hall devices, reflective ultrasonic waves, transmissive ultrasonic waves, electromagnetic induction, eddy current and other technologies to test the thickness of thin-sheet objects. However, when these technologies are used as on-line detection technologies, their detection devices are large in size and high in cost, which are their main disadvantages, which limit the application of these technologies. [0003] At present, the object thickness m...
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Inventor 林永辉姜利宋荣鑫
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD