Unlock instant, AI-driven research and patent intelligence for your innovation.

Magnetic sensor and paper sheet identification device

A magnetic sensor and sensor technology, which is applied in the direction of instruments, banknote authenticity inspection, handling coins or valuable banknotes, etc., can solve problems such as banknote jamming, achieve the effects of preventing medium jamming, optimizing magnetic field distribution, and improving sensitivity

Active Publication Date: 2010-06-23
SANKYO SEIKI MFG CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, when using any of these methods to identify banknotes, if there is an opening on the sensor surface, there is a problem that the banknotes will be jammed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetic sensor and paper sheet identification device
  • Magnetic sensor and paper sheet identification device
  • Magnetic sensor and paper sheet identification device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Hereinafter, a magnetic sensor to which the present invention is applied and a sheet identification device using the magnetic sensor will be described with reference to the drawings.

[0048] (overall composition)

[0049] figure 1 Shown is a structural diagram of the main part of the paper identification device to which the present invention is applied. exist figure 1 Among them, the paper identification device 1 of this form is a device for identifying the authenticity or type of a pattern formed on a paper sheet 2 (medium) such as a banknote or a check, and is formed on the paper sheet 2. The first pattern 21 is formed using a magnetic material such as magnetic ink, and the second pattern 22 is formed on the paper sheet 2 using a non-magnetic conductive material such as aluminum. The paper identification device 1 detects the authenticity or type of the paper 2 by detecting the first pattern 21 and the second pattern 22 formed on the paper 2 . Here, the second pat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A magnetic sensor (10) comprises a core body (11) having a sensor face (110) whereupon an air gap (16) is opened, and an exciting coil (12) arranged in the air gap (16). A nonmagnetic wear resistant member (18) exhibiting conductivity is arranged in the air gap (16) on the side closer to the sensor face (110) than the exciting coil (12). A sheet identifying device (1), which is provided with the magnetic sensor (10) arranged on a conveyance passage (3) for the sheet (2) and identifies the sheet (2) being conveyed on the conveyance passage (3) based on the detection results from the magnetic sensor (10), comprises a core body (11) equipped with a magneto-sensitive portion (118) directed toward the conveyance passage (3), and an exciting coil (12) wound around the core body (11) in order todetect a pattern for generating a magnetic field in the conveyance passage (3) when an AC current is supplied. The magnetic sensor detects a first pattern (21) formed on the sheet (2) by a magnetic material and a second pattern (22) formed on the sheet (2) by a nonmagnetic material based on the detection results of magnetic field variation caused when the sheet (2) is conveyed on the conveyance passage (3).

Description

technical field [0001] The present invention relates to a magnetic sensor and a paper identification device for identifying the authenticity and type of paper such as banknotes, checks and other valuable securities. Background technique [0002] In the past, the method adopted in identification devices such as banknotes is to use MR sensors (magnetoresistive sensors) and the like to detect patterns printed with magnetic ink on banknotes to identify authenticity and types of banknotes (for example, refer to Patent Document 1, Patent Document 2). [0003] In addition, when using any of these methods to identify banknotes, if there is an opening on the sensor surface, there is a problem of jamming the banknotes. Therefore, measures such as disposing a wear-resistant plate between the sensor surface and the banknote are taken (for example, refer to Patent Document 3). [0004] Patent Document 1: JP-A-2001-92915 [0005] Patent Document 2: JP-A-2003-35701 [0006] Patent Docu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G07D7/04G07D7/00G07D7/02G07D7/12
Inventor 百濑正吾
Owner SANKYO SEIKI MFG CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com