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Magnetic inductive character wheel direct reading device

A magnetic induction and magnetic induction chip technology, applied in the field of data identification, can solve problems such as excessive manual intervention, excessive manual intervention, inaccurate measurement, etc., to increase stability and service life, magnetic field change induction, magnetic field change The effect of induction stabilization

Inactive Publication Date: 2015-09-30
CHENGDU QIANJIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of excessive manual intervention in the installation process caused by the use of reed switches for word wheel counting, and the problem of inaccurate measurement due to micro-leakage, and to provide a magnetic induction chip for counting, thereby avoiding the The production process of the character wheel counting device requires too much manual intervention and the magnetic induction character wheel direct reading device that does not cause inaccurate measurement due to micro-leakage of the reed switch: In order to achieve the above purpose, the technical solution adopted by the present invention is:

Method used

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  • Magnetic inductive character wheel direct reading device
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  • Magnetic inductive character wheel direct reading device

Examples

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Embodiment 1

[0022] Example 1: The purpose of the present invention is to overcome the problem of excessive manual intervention in the installation process caused by the use of reed switches for word wheel counting, and the problem of inaccurate measurement due to micro-leakage, and to provide a magnetic induction chip for counting, thereby avoiding the The production process of the character wheel counting device requires too much manual intervention and the magnetic induction character wheel direct reading device that does not cause inaccurate measurement due to micro-leakage of the reed switch: In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0023] A magnetic induction character wheel direct reading device,

[0024] The character wheel 4, the annular cylindrical surface of the character wheel 4 is provided with ten numbers of 0-9, and a ferromagnetic substance is arranged at the position of at least one number; in this embodiment, on...

Embodiment 2

[0030] Example 2: Different from Example 1, in this example, if figure 2 As shown, each number position on the character wheel 4 is provided with an iron block 41 .

[0031] During use, along with the rotation of the word wheel 4 provided with the iron block 41, whenever an iron block 42 is close to the magnetic block 1 (that is, when a number turns below the magnetic block 1), the magnetic block The magnetic field of 1 changes, and the magnetic induction chip 2 outputs counting pulses after sensing the change of the magnetic field.

[0032] It should be noted that the shape of the iron block 41 is not limited to figure 1 or figure 2 The circle in , but can be any shape, such as image 3 The bars shown. In addition, the iron block 41 can be embedded in the surface of the character wheel 4 or protrude from the surface of the character wheel 4 .

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Abstract

The invention relates to the field of data identification of measuring technique, in particular to a magnetic inductive character wheel direct reading device. The magnetic inductive character wheel direct reading device comprises a character wheel, a magnetic sensing unit and a magnetic block. Ten numbers from 0 to 9 are arranged on the cylindrical surface of the character wheel, and ferromagnetic substance is arranged at the position of at least one number. The magnetic sensing unit comprises a circuit board, and a magnetic inductive chip is arranged on the circuit board. The magnetic block is in a U shape and is fixedly mounted on the circuit board, the magnetic inductive chip is arranged in a U-shaped notch in a covering mode, when the ferromagnetic substance gets close to the magnetic block along with rotation of the character wheel, changes of the magnetic field of the magnetic block are caused, and the magnetic inductive chip is used for sensing the changes of the magnetic field and outputting count pulses. According to the technical scheme, the automatic process of a greater degree is achieved in the mounting process, the magnetic inductive chip can sense the changes of the magnetic field of the U-shaped magnetic block more stably and accurately, the stability of a counting device is increased, and the service life of the counting device is prolonged.

Description

technical field [0001] The invention relates to the field of data identification in measurement technology, in particular to a magnetic induction character wheel direct reading device. Background technique [0002] The character wheel counting device in the prior art mostly adopts the magnetic material installed on the character wheel, and the electronic pulse counting is carried out through the dry reed switch externally. Such products have two disadvantages: 1. The reed tube pin shaping during installation and welding can easily cause micro-leakage of the vacuum glass tube of the reed tube, and this micro-leakage is not easy to find, which leads to the use of micro-leakage reed switches The character wheel counting device is inaccurate after a period of time. 2. The reed switch cannot be directly automated during the shaping and welding process, and manual intervention is required, so the production efficiency is not high. Contents of the invention [0003] The purpos...

Claims

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Application Information

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IPC IPC(8): G01F15/06
Inventor 邵帅刘义胡芸华赵勇
Owner CHENGDU QIANJIA TECH CO LTD