Magnetic measuring device

专利摘要:
The present invention relates to a magnetic measuring device capable of easily measuring the strength of a magnetic field in a narrow space such as a hole having a very small diameter. The technical configuration of the present invention is to provide an insulating layer (2) on a thin nonmagnetic metal substrate (1). ) Is applied, and a stepped portion 4 inserted into the hole 3 is provided on one side of the metal substrate 1 on which the insulating layer 2 is applied, and the magnetoresistance member 5 is placed on the stepped portion 4. Is applied, and the electrodes 6 and 6 'are printed on both ends of the magnetoresistance body 5 to measure the magnetic field in the hole 3. Accordingly, the magnetic field can be easily measured in a hole having a very small diameter by using a step of the nonmagnetic metal substrate.
公开号:KR19990070936A
申请号:KR1019980006103
申请日:1998-02-26
公开日:1999-09-15
发明作者:송창호；최판규
申请人:이형도；삼성전기 주식회사；
IPC主号:

专利说明:

Magnetic measuring device
The present invention relates to a magnetic measuring device that can easily and easily measure the strength of a magnetic field in a narrow space, such as a small diameter hole, in particular, an insulating layer is applied on a thin non-magnetic metal substrate, By installing a stepped portion inserted into the hole on one side of the metal substrate coated with the insulating layer, applying a magnetoresistance on the stepped portion, and printing electrodes on both ends of the magnetoresistance to measure the magnetic field in the hole. The present invention relates to a magnetic measuring device that enables easy and easy measurement of a magnetic field in a space, and in particular, makes it possible to easily measure a magnetic field in a direction parallel to the axis of the hole in a very small diameter hole.
Conventionally known magneto-resistive elements for measuring magnetic fields are formed of NiCo alloys, NiFe alloys, Ni, Fe, and the like, while forming a magnetoresistance, respectively, and an external magnetic field applied to the magnetoresistive pattern, that is, The resistance value varies according to the vertical magnetic field and the horizontal magnetic field. The difference between the resistance value when there is no external magnetic field and the resistance value when there is an external magnetic field is used as an output. Mainly used.
In the structure of the conventional magnetoresistive element related to this technique, as shown in Fig. 1, magnetoresistive patterns 51, 52, 53, and 54 printed in a + shape are formed, An input electrode 55 and a first output electrode 56 are formed at ends of the magnetoresistive patterns 51 and 52 facing each other, and a ground electrode is formed at the ends of the magnetoresistive patterns 53 and 54 facing each other. 57 and the second output electrode 58, respectively.
The conventional magnetoresistive element having the above structure has an external magnetic field in the horizontal and vertical directions with respect to the input electrodes 55 connected to the + -shaped magnetoresistive patterns 51, 52, 53, and 54. When is applied, the magnetic strength is measured by the change in the resistance value of the first output electrode 56 and the second output electrode 58 by a horizontal or vertical magnetic field applied to the magnetoresistive pattern.
However, the magnetoresistive element as described above can easily measure the strength of the magnetic field, but after the resistance pattern is printed, the magneto-resistive element is actively connected to each other. There is a problem that the measurement of the magnetic field becomes impossible.
SUMMARY OF THE INVENTION The present invention has been made to solve various problems of the related art as described above, and an object thereof is to provide a stepped portion in which a magnetoresistance is applied to a hole in one side of a metal substrate coated with an insulating layer so as to insert a step in a narrow space. In order to easily measure the magnetic field, and to provide a magnetic measuring device that can easily measure the magnetic field in the direction parallel to the axis of the hole, especially in a very small diameter hole.
1 is a schematic structural diagram showing a conventional magnetoresistive element;
2 is a schematic configuration diagram of a magnetic measuring device according to the present invention
3 is an installation structure diagram of a magnetic measuring device of the present invention.
Explanation of symbols on the main parts of the drawings
1 ... Non-magnetic metal substrate 2 ... Insulation layer
3 ... hole 4 ... step
5.Resistor 6,6 '... electrode
As a technical configuration for achieving the above object, the present invention, the insulating layer is applied on a thin non-magnetic metal substrate, and provided with a step portion inserted into the hole to one side of the metal substrate on which the insulating layer is applied, the step By applying a magneto-resistive body to the floating, by printing electrodes on both ends of the magneto-resistive body to provide a magnetic measuring device consisting of a configuration for measuring the magnetic field in the hole.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 2 is a schematic configuration diagram of a magnetic measuring device according to the present invention, and FIG. 3 is an installation structure diagram of the magnetic measuring device according to the present invention, in which an insulating layer 2 is coated on a thin nonmagnetic metal substrate 1. A step part 4 inserted into the hole 3 is provided on one side of the metal substrate 1 on which the insulating layer 2 is applied, and a magnetoresistive material 5 is applied on the step part 4. Electrodes 6 and 6 'are printed at both ends of the magnetoresistance 5 to measure the magnetic field in the hole 3.
In addition, the magnetoresistive material 5 printed on the stepped portion 4 of the nonmagnetic metal substrate 1 is made of a group 3.5 magnetoresistive material, and an insulating layer is applied on the nonmagnetic metal substrate 1. (2) and the magneto-resistive body 5 are constituted so as to be printed by lithography.
Referring to the operation and effect of the present invention made of such a configuration as follows.
As shown in Figs. 2 to 3, in the case where a magnetic resistance is printed on a relatively thin nonmagnetic metal substrate 1 and the magnetic field is measured in a hole of a small diameter magnetic measurement object, the nonmagnetic metal is In a state where the insulating layer 2 is applied to the surface of the substrate 1 by printing, one side of the nonmagnetic metal substrate 1 on which the insulating layer 2 is applied is easily formed in the hole 3 that is a magnetic measurement target. The stepped portion 4 is formed so as to be interpolated so that the stepped portion 4 is interpolated in the hole 3.
On the other hand, a magnetoresistance 5 is formed on the surface of the stepped portion 4 of the non-magnetic metal substrate 1 by printing, and electrodes 6 and 6 'are formed at both ends of the magnetoresistance 5. Print it and use it for wiring.
In this case, the magnetoresistive material 5 printed on the stepped portion 4 of the nonmagnetic metal substrate 1 is made of a group 3.5 magnetoresistance to facilitate the measurement of the magnetic field, and the nonmagnetic metal substrate The insulating layer 2 and the magnetoresistive body 5 applied on (1) can be finely printed by lithography.
Accordingly, in a small hole 3, such as 0.5 mm in diameter, where the diameter of the magnetic measurement object is small, 0.5 mm or less in which the magnetoresistive body 5 is printed on one end of the nonmagnetic metal substrate 1 By inserting the stepped portion 4, the magnetic field of the hole can be easily and easily detected.
According to the magnetic measuring device according to the present invention as described above, it is easy and convenient to measure the magnetic field in a narrow space by using a relatively small optical fiber, especially in the hole of very small diameter and There is an excellent effect that can easily measure the magnetic field in the side-by-side direction.

权利要求:
Claims (3)
[1" claim-type="Currently amended] An insulating layer 2 is coated on the non-magnetic metal substrate 1 having a thin thickness, and the step portion 4 is inserted into the hole 3 to one side of the metal substrate 1 on which the insulating layer 2 is applied. And a magnetoresistance (5) on the stepped portion (4), and electrodes 6 and 6 'are printed on both ends of the magnetoresistance (5) to measure the magnetic field in the hole (3). Magnetic measuring device, characterized in that consisting of a configuration.
[2" claim-type="Currently amended] 2. The magnetic measuring device according to claim 1, wherein the magnetoresistive material (5) printed on the stepped portion (4) of the nonmagnetic metal substrate (1) is made of a Group 3.5 magnetoresistive material.
[3" claim-type="Currently amended] 2. The magnetic measuring device according to claim 1, wherein the insulating layer (2) and the magnetoresistive body (5) applied on the nonmagnetic metal substrate (1) are printed on a slab.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1998-02-26|Application filed by 이형도, 삼성전기 주식회사

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1998-02-26|Priority to KR1019980006103A

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1999-09-15|Publication of KR19990070936A

优先权:

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申请号 | 申请日 | 专利标题

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KR1019980006103A|KR19990070936A|1998-02-26|1998-02-26|Magnetic measuring device|