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Film thickness detection device

A detection device and film thickness technology, which is applied in the direction of electromagnetic measurement device, electric/magnetic thickness measurement, etc., can solve the problem of inaccurate detection of film thickness and achieve high detection accuracy

Active Publication Date: 2018-05-29
WEIHAI HUALING OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of this application is to provide a film thickness detection device to solve the problem that the film thickness cannot be accurately detected in the prior art

Method used

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Embodiment Construction

[0030] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0031] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0032] As introduced in the background art, the detection accuracy of the film thickness detection device in the...

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Abstract

The application provides an apparatus for detecting the thickness of a membrane. The apparatus includes a common unit and a detection unit. The common unit includes at least one common electrode. The detection unit includes at least two rows of sensor chips and signal processing units which are arranged in the moving direction of a to-be-detected membrane and at intervals. Each sensor chip and the common unit are opposite in a first direction and are arranged at intervals. The plurality of sensor chips in each row are arranged at intervals in a second direction. The gaps between the common unit and each sensor chip constitute a transmission channel of the to-be-tested membrane. Each sensor chip includes one row of a plurality of detection electrodes which are arranged in the second direction which is perpendicular to the moving direction of the to-be-tested membrane. The first direction is perpendicular to a first plane which is parallel to the second direction. The signal processing unit is in electrical connection to each sensor chip, processes an electric signal output by each sensor chip and outputs the result. According to the invention, the apparatus can accurately detect the thickness of the membrane.

Description

technical field [0001] The present application relates to the field of thickness detection, in particular, to a film thickness detection device. Background technique [0002] On-line continuous thickness measurement of sheet-like items, such as paper, bills, plastic film to be tested, textile items, etc., is playing an increasingly important role in the production, testing, processing, and recycling of their products. At present, the detection technology of the film thickness to be measured includes the use of Hall devices, reflective ultrasonic detection, transmission ultrasonic detection, electromagnetic induction detection, eddy current detection and other technologies. However, the detection devices corresponding to these technologies are large in size and high in cost, which is not conducive to the application of these technologies. [0003] In recent years, the detection technology of the thickness of the film to be measured through the electrostatic induction between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/06
CPCG01B7/08
Inventor 戚务昌
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD
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