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Magnetic image sensor

An image sensor and magnetic induction technology, applied in the field of sensors, can solve the problem of large noise signal and achieve the effect of reducing noise signal

Active Publication Date: 2016-06-22
WEIHAI HUALING OPTO ELECTRONICS CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a magnetic image sensor to solve the problem that the magnetic image sensor in the related art has a relatively large noise signal due to the deviation of the magnetoresistance

Method used

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Embodiment Construction

[0032] 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 following will refer to Attached picture The present invention will be described in detail in combination with examples.

[0033] In order to enable those skilled in the art to better understand the scheme of the present application, the following will combine the following in the embodiments of the present application Attached picture , clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0034] It should be noted th...

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Abstract

The invention provides a magnetic image sensor. The magnetic image sensor includes: magnetic induction resistors which are arranged along a scanning direction and used for detecting magnetic signal changes in a range to be detected; configuration resistors connected with the magnetic induction resistors, the configuration resistors being resistors with adjustable valves of resistance; and a drive circuit connected with the magnetic induction resistors and used for performing output control on signals detected by the magnetic induction resistors. Through the magnetic image sensor provided by the invention, the problem in related technologies that noise signals of a magnetic image sensor are relatively large due to deviation of magnetic resistance is solved.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a magnetic image sensor. Background technique [0002] Making specific magnetic information on banknotes, bills, securities and other media is one of the important means of modern anti-counterfeiting technology, and with the development of production technology, the application of magnetic information anti-counterfeiting technology is also being continuously strengthened, such as in many countries High-end banknotes (such as RMB, US dollars, Euros, etc.) contain rich magnetic information inside. It is also an indispensable anti-counterfeiting detection method for the identification of specific magnetic information on paper money, bills, securities and other media. [0003] In order to realize the above-mentioned detection, a magnetic image sensor is provided in the related art. The magnetic image sensor continuously arranges small magnetic heads in the entire reading identification range ...

Claims

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Application Information

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IPC IPC(8): G07D7/04G07D7/20
CPCG07D7/04G07D7/20G07D2207/00G01R33/0094G01R33/0029G01R33/098G01R33/12G01R33/09G01R33/093G01R33/096G01R33/07G01R33/0052G01R33/091
Inventor 戚务昌孙明丰
Owner WEIHAI HUALING OPTO ELECTRONICS CO LTD
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