Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP5857308B2 - Linear sensor probe and manufacturing method thereof - Google Patents
[go: Go Back, main page]

JP5857308B2 - Linear sensor probe and manufacturing method thereof - Google Patents

Linear sensor probe and manufacturing method thereof Download PDF

Info

Publication number
JP5857308B2
JP5857308B2 JP2012030238A JP2012030238A JP5857308B2 JP 5857308 B2 JP5857308 B2 JP 5857308B2 JP 2012030238 A JP2012030238 A JP 2012030238A JP 2012030238 A JP2012030238 A JP 2012030238A JP 5857308 B2 JP5857308 B2 JP 5857308B2
Authority
JP
Japan
Prior art keywords
mounting portion
outer diameter
sliding guide
linear sensor
guide body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2012030238A
Other languages
Japanese (ja)
Other versions
JP2013167501A (en
Inventor
昌司 仲田
昌司 仲田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamagawa Seiki Co Ltd
Original Assignee
Tamagawa Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tamagawa Seiki Co Ltd filed Critical Tamagawa Seiki Co Ltd
Priority to JP2012030238A priority Critical patent/JP5857308B2/en
Publication of JP2013167501A publication Critical patent/JP2013167501A/en
Application granted granted Critical
Publication of JP5857308B2 publication Critical patent/JP5857308B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

本発明は、リニアセンサ用プローブ及びその製造方法に関し、特に、取付部、感知部及び摺動ガイド体を非磁性材で一体形成することにより、小径のプローブを得るための新規な改良に関する。 The present invention relates to a probe for a linear sensor and a manufacturing method thereof, and more particularly to a novel improvement for obtaining a small-diameter probe by integrally forming a mounting portion, a sensing portion, and a sliding guide body with a nonmagnetic material.

従来、用いられていたこの種のリニアセンサ用プローブとしては、例えば、特許文献1に開示されている構成を図3に示すことができる。
すなわち、図3において符号1で示されるものはセンサ用巻線2が巻回されている円筒状のボビンであり、このボビン1内には、取付部7、コア部6及び摺動ガイド体5が連続して取付けられたリニアセンサ用プローブ10が矢印Aに沿って摺動するように構成されている。
As this type of linear sensor probe conventionally used, for example, the configuration disclosed in Patent Document 1 can be shown in FIG.
That is, what is indicated by reference numeral 1 in FIG. 3 is a cylindrical bobbin around which the sensor winding 2 is wound, and in this bobbin 1, there are a mounting portion 7, a core portion 6 and a sliding guide body 5. Are configured so that the linear sensor probe 10 attached continuously to slide along the arrow A.

前記ボビン1内でリニアセンサ用プローブ10を摺動させることにより、センサコイル2の2相出力コイルとコア6による磁気結合変化により発生する2相出力電圧の差を用いてリニアセンサ用プローブ10の変位量を検出し、直線的な変位を電気的に検出することができる。   By sliding the linear sensor probe 10 in the bobbin 1, the difference between the two-phase output voltage generated by the magnetic coupling change between the two-phase output coil of the sensor coil 2 and the core 6 is used. The amount of displacement can be detected, and a linear displacement can be detected electrically.

前記リニアセンサ用プローブ10は、拡大して示すと、図2に示すように構成されており、非磁性金属材よりなる取付部7の先端に、ろう付け等によってコア部6が溶接されており、このコア部6の先端にキャップ状の摺動ガイド体5が嵌合されている。   The linear sensor probe 10 is configured as shown in FIG. 2 when enlarged, and the core portion 6 is welded to the tip of the mounting portion 7 made of a nonmagnetic metal material by brazing or the like. The cap-shaped sliding guide body 5 is fitted to the tip of the core portion 6.

従って、前述の構成のリニアセンサ用プローブ10をボビン1内で摺動させると、ボビン1の内径とリニアセンサ用プローブ10の外径との間に空隙が設定され、図3で示されるように芯ずれが発生するように構成されている。   Accordingly, when the linear sensor probe 10 having the above-described configuration is slid in the bobbin 1, a gap is set between the inner diameter of the bobbin 1 and the outer diameter of the linear sensor probe 10, as shown in FIG. It is configured to cause misalignment.

特開平10−311737号公報Japanese Patent Laid-Open No. 10-311737

従来、用いられていたこの種のリニアセンサ用プローブ及びその製造方法は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、従来のプローブは、リニアセンサ自体の形状が比較的大径であったため、プローブの外径も大径のものが採用され、非磁性の取付部7の先端に磁性材よりなるコア部6をろう付けで接続すると共に摺動ガイド体5を取り付けなければならず、従来型の大径のリニアセンサには適合できるが、最近の自動車のように多くのセンサを用いることが必要となると、そこに使用されるリニアセンサも小径化され、そのリニアセンサ用プローブ10も、例えば、外径が0.5mm等の小径化されたものが必要となり、前述の従来のプローブ構造では、取付部7へのコア部6のろう付けによる溶接は全く不可能となる。
Conventionally, this type of linear sensor probe and the method for manufacturing the same have been configured as described above, and thus have the following problems.
That is, since the conventional probe has a relatively large diameter, the probe has a large outer diameter, and the core portion 6 made of a magnetic material is formed at the tip of the nonmagnetic mounting portion 7. Must be connected by brazing and the sliding guide body 5 must be attached, and can be adapted to a conventional large-diameter linear sensor, but when it is necessary to use many sensors as in a modern automobile, The diameter of the linear sensor used there is also reduced, and the linear sensor probe 10 needs to be reduced in diameter, for example, 0.5 mm, etc. In the above-described conventional probe structure, the mounting portion 7 is required. Welding by brazing the core 6 to the core is completely impossible.

本発明は、以上のような課題を解決するためになされたもので、特に、取付部と感知部と摺動ガイド体とを一体の非磁性材で形成し、感知部の外周に磁性薄膜体を形成することで小径化されたリニアセンサ用プローブを得ることができる。   The present invention has been made to solve the above-described problems, and in particular, the mounting portion, the sensing portion, and the sliding guide body are formed of an integral nonmagnetic material, and the magnetic thin film body is formed on the outer periphery of the sensing portion. By forming the linear sensor probe, the diameter can be reduced.

本発明によるリニアセンサ用プローブは、全体形状が棒状をなし取付部の先端側に感知部及び摺動ガイド体を有するリニアセンサ用プローブにおいて、前記取付部と前記感知部及び前記摺動ガイド体とを一体のアルミニウムの切削による棒体で形成し、前記感知部の外周にはフェライト粉末を練ったもの、又は、磁性粉末が混入した導電性テープの磁性材からなる磁性薄膜体が形成され、前記取付部の取付部外径及び前記摺動ガイド体の摺動外径は前記感知部の感知部外径より径大とすると共に、前記取付部の取付部外径及び前記摺動ガイド体の前記摺動外径は、0.5mm径で形成した構成であり、また、本発明によるリニアセンサ用プローブの製造方法は、全体形状が棒状をなし取付部の先端側に感知部及び摺動ガイド体を有するリニアセンサ用プローブにおいて、前記取付部と前記感知部及び前記摺動ガイド体とを一体のアルミニウムの切削による棒体で形成し、前記感知部の外周にはフェライト粉末を練ったもの、又は、磁性粉末が混入した導電性テープの磁性材からなる磁性薄膜体が形成され、前記取付部の取付部外径及び前記摺動ガイド体の摺動外径は前記感知部の感知部外径より径大とすると共に、前記取付部の取付部外径及び前記摺動ガイド体の前記摺動外径は、0.5mm径で形成する方法である。 The linear sensor probe according to the present invention is a linear sensor probe having a rod-like shape as a whole and having a sensing portion and a sliding guide body on the distal end side of the mounting portion, and the mounting portion, the sensing portion, and the sliding guide body, Is formed of a rod body formed by cutting aluminum, and a magnetic thin film made of a magnetic material of a conductive tape mixed with ferrite powder or a magnetic powder mixed on the outer periphery of the sensing portion is formed, The mounting portion outer diameter of the mounting portion and the sliding outer diameter of the sliding guide body are larger than the sensing portion outer diameter of the sensing portion, and the mounting portion outer diameter of the mounting portion and the sliding guide body The outer diameter of the slide is a structure formed with a diameter of 0.5 mm , and the manufacturing method of the linear sensor probe according to the present invention has a rod shape as a whole and a sensing portion and a sliding guide body on the tip side of the mounting portion. Linear with In capacitors probe ones, the form the sensing portion and the mounting portion and said sliding guide member in rod by cutting integral aluminum, the outer periphery of the sensing portion which is kneaded with ferrite powder, or magnetic powder A magnetic thin film body made of a magnetic material of a conductive tape mixed with is formed, and the outer diameter of the mounting portion and the outer diameter of the sliding guide body are larger than the outer diameter of the sensing portion of the sensing portion. In addition, the mounting portion outer diameter of the mounting portion and the sliding outer diameter of the sliding guide body are formed with a diameter of 0.5 mm .

本発明によるリニアセンサ用プローブ及びその製造方法は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、取付部と感知部と摺動ガイド体とを、非磁性材よりなる棒状体で一体に形成し、その後、感知部のみ磁性膜体を形成しているため、極めて小径化ができ、例えば、0.5mmのプローブも実現可能である。
従って、リニアセンサ(LVDT)の小型化が可能となる。
Since the linear sensor probe and the manufacturing method thereof according to the present invention are configured as described above, the following effects can be obtained.
That is, the mounting portion, the sensing portion, and the sliding guide body are integrally formed of a rod-shaped body made of a non-magnetic material, and then the sensing film is formed only with the magnetic film body. A 0.5 mm probe can also be realized.
Therefore, the linear sensor (LVDT) can be downsized.

本発明によるリニアセンサ用プローブを示す断面図である。It is sectional drawing which shows the probe for linear sensors by this invention. 従来のリニアセンサ用プローブの断面図である。It is sectional drawing of the conventional probe for linear sensors. 従来のリニアセンサの要部の断面図である。It is sectional drawing of the principal part of the conventional linear sensor.

本発明は、取付部、感知部及び摺動ガイド体を非磁性材で棒状に一体形成することにより、小径のリニアセンサ用プローブを提供することを目的とする。   An object of the present invention is to provide a small-diameter linear sensor probe by integrally forming a mounting portion, a sensing portion, and a sliding guide body in a rod shape with a nonmagnetic material.

以下、図面と共に本発明によるリニアセンサ用プローブ及びその製造方法について説明する。
図1において、符号10で示されるものは長手形状なすリニアセンサ用プローブであり、このリニアセンサ用プローブ10は、取付部7、感知部6及び摺動ガイド体5を、例えば、アルミニウム等の非磁性材の棒体の切削によって一体状に直線状に形成されている。
A linear sensor probe and a manufacturing method thereof according to the present invention will be described below with reference to the drawings.
In FIG. 1, a reference numeral 10 denotes a linear sensor probe having a longitudinal shape. The linear sensor probe 10 includes an attachment portion 7, a sensing portion 6, and a sliding guide body 5, for example, non-aluminum or the like. The magnetic material rods are integrally formed linearly by cutting.

前記感知部6は、最初は他の摺動ガイド体5及び取付部7と同一外径で形成されているが、この感知部6のみは、さらに外径が小さくなるように切削され、他の摺動ガイド体5及び取付部7よりも小径となるように構成されている。   The sensing part 6 is initially formed with the same outer diameter as the other sliding guide body 5 and the mounting part 7, but only this sensing part 6 is cut so that the outer diameter is further reduced. The sliding guide body 5 and the mounting portion 7 are configured to have a smaller diameter.

前記感知部6の外周には、例えば、フェライト粉末を練ったもの、磁性粉末が混入された導電性テープ等の磁性材からなる磁性薄膜体20を塗布又は貼付けて形成されているが、吹付けも用いることができる。
この場合、前記感知部6の感知部外径φDcと取付部7の取付部外径φDpとは、φDc<φDpの関係にあり、摺動ガイド体5の摺動外径は前記取付部外径φDpと同一であるため、この摺動ガイド体5の外径は前記感知部6(磁性薄膜体20が設けられた状態)の感知部外径φDcより小径であり、図3のように、ボビン1内をリニアセンサ用プローブ10を摺動させた場合、このリニアセンサ用プローブ10の摺動ガイド体5がボビン1の内周面に摺動するのみで、前記磁性薄膜体20はボビン1の内周面には接触せず、正常な摺動によるリニアセンサ用プローブ10の作用を得ることができる。
The outer periphery of the sensing unit 6 is formed by applying or pasting a magnetic thin film 20 made of a magnetic material such as a kneaded ferrite powder or a conductive tape mixed with magnetic powder. Can also be used.
In this case, the sensing portion outer diameter φDc of the sensing portion 6 and the fitting portion outer diameter φDp of the fitting portion 7 are in a relationship of φDc <φDp, and the sliding outer diameter D of the sliding guide body 5 is outside the fitting portion. Since the diameter is the same as the diameter φDp, the outer diameter of the sliding guide body 5 is smaller than the sensing portion outer diameter φDc of the sensing portion 6 (the state in which the magnetic thin film body 20 is provided), as shown in FIG. When the linear sensor probe 10 is slid in the bobbin 1, the sliding guide body 5 of the linear sensor probe 10 only slides on the inner peripheral surface of the bobbin 1. It is possible to obtain the action of the linear sensor probe 10 by normal sliding without contacting the inner peripheral surface of the linear sensor.

本発明によるリニアセンサ用プローブは、取付部、感知部及び摺動ガイド体が非磁性材で一体に形成されているため、例えば、極めて小径(例えば、0.5mmの径)のプローブを用いた小径のリニアセンサを得ることができる。   In the linear sensor probe according to the present invention, since the mounting portion, the sensing portion, and the sliding guide body are integrally formed of a nonmagnetic material, for example, a probe having an extremely small diameter (for example, a diameter of 0.5 mm) is used. A small-diameter linear sensor can be obtained.

1 ボビン
2 センサ用巻線
5 摺動ガイド体
6 感知部
7 取付部
10 リニアセンサ用プローブ
20 磁性薄膜体
φDc 感知部外径
φDp 取付部外径
D 摺動外径
DESCRIPTION OF SYMBOLS 1 Bobbin 2 Sensor winding 5 Sliding guide body 6 Sensing part 7 Mounting part 10 Linear sensor probe 20 Magnetic thin film body φDc Sensing part outer diameter φDp Mounting part outer diameter
D Sliding outer diameter

Claims (2)

全体形状が棒状をなし取付部(7)の先端側に感知部(6)及び摺動ガイド体(5)を有するリニアセンサ用プローブにおいて、
前記取付部(7)と前記感知部(6)及び前記摺動ガイド体(5)とを一体のアルミニウムの切削による棒体で形成し、前記感知部(6)の外周にはフェライト粉末を練ったもの、又は、磁性粉末が混入した導電性テープの磁性材からなる磁性薄膜体(20)が形成され、前記取付部(7)の取付部外径(φDp)及び前記摺動ガイド体(5)の摺動外径(D)は前記感知部(6)の感知部外径(φDc)より径大とすると共に、前記取付部(7)の取付部外径(φDp)及び前記摺動ガイド体(5)の前記摺動外径(D)は、0.5mm径で形成した構成であることを特徴とするリニアセンサ用プローブ。
In the linear sensor probe having a rod-like overall shape and having a sensing portion (6) and a sliding guide body (5) on the tip side of the mounting portion (7),
The mounting portion (7), the sensing portion (6), and the sliding guide body (5) are formed of a single bar made by cutting aluminum, and ferrite powder is kneaded on the outer periphery of the sensing portion (6). Or a magnetic thin film body (20) made of a magnetic material of a conductive tape mixed with magnetic powder , and the mounting portion outer diameter (φDp) of the mounting portion (7) and the sliding guide body (5 ) Sliding outer diameter (D) is larger than the sensing portion outer diameter (φDc) of the sensing portion (6) , the mounting portion outer diameter (φDp) of the mounting portion (7) and the sliding guide body (5) the sliding outer diameter (D), the probe for the linear sensor, which is a structure formed by 0.5mm diameter.
全体形状が棒状をなし取付部(7)の先端側に感知部(6)及び摺動ガイド体(5)を有するリニアセンサ用プローブにおいて、
前記取付部(7)と前記感知部(6)及び前記摺動ガイド体(5)とを一体のアルミニウムの切削による棒体で形成し、前記感知部(6)の外周にはフェライト粉末を練ったもの、又は、磁性粉末が混入した導電性テープの磁性材からなる磁性薄膜体(20)が形成され、前記取付部(7)の取付部外径(φDp)及び前記摺動ガイド体(5)の摺動外径(D)は前記感知部(6)の感知部外径(φDc)より径大とすると共に、前記取付部(7)の取付部外径(φDp)及び前記摺動ガイド体(5)の前記摺動外径(D)は、0.5mm径で形成したことを特徴とするリニアセンサ用プローブの製造方法。
In the linear sensor probe having a rod-like overall shape and having a sensing portion (6) and a sliding guide body (5) on the tip side of the mounting portion (7),
The mounting portion (7), the sensing portion (6), and the sliding guide body (5) are formed of a single bar made by cutting aluminum, and ferrite powder is kneaded on the outer periphery of the sensing portion (6). Or a magnetic thin film body (20) made of a magnetic material of a conductive tape mixed with magnetic powder , and the mounting portion outer diameter (φDp) of the mounting portion (7) and the sliding guide body (5 ) Sliding outer diameter (D) is larger than the sensing portion outer diameter (φDc) of the sensing portion (6) , the mounting portion outer diameter (φDp) of the mounting portion (7) and the sliding guide The method for manufacturing a probe for a linear sensor , wherein the sliding outer diameter (D) of the body (5) is 0.5 mm .
JP2012030238A 2012-02-15 2012-02-15 Linear sensor probe and manufacturing method thereof Expired - Fee Related JP5857308B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012030238A JP5857308B2 (en) 2012-02-15 2012-02-15 Linear sensor probe and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012030238A JP5857308B2 (en) 2012-02-15 2012-02-15 Linear sensor probe and manufacturing method thereof

Publications (2)

Publication Number Publication Date
JP2013167501A JP2013167501A (en) 2013-08-29
JP5857308B2 true JP5857308B2 (en) 2016-02-10

Family

ID=49178014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012030238A Expired - Fee Related JP5857308B2 (en) 2012-02-15 2012-02-15 Linear sensor probe and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP5857308B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016057174A (en) * 2014-09-10 2016-04-21 多摩川精機株式会社 Linear sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2582531Y2 (en) * 1992-04-13 1998-10-08 株式会社ゼクセル Inductance displacement sensor
JPH08247705A (en) * 1995-03-15 1996-09-27 Tamagawa Seiki Co Ltd Differential transformer

Also Published As

Publication number Publication date
JP2013167501A (en) 2013-08-29

Similar Documents

Publication Publication Date Title
EP2219104A3 (en) Position indicator, circuit component and input device
US9863787B2 (en) Linear variable differential transformer with multi-range secondary windings for high precision
JP2016025180A5 (en)
US10024692B2 (en) Variable differential transformer position sensor with a trapezoidal primary coil
KR100820262B1 (en) Position sensor
CN107004489A (en) Solenoid
JP5857308B2 (en) Linear sensor probe and manufacturing method thereof
JP5316872B2 (en) Reactor and converter
JP6492693B2 (en) Current sensor unit
JP5576840B2 (en) Magnetic characteristic measuring sensor and magnetic characteristic measuring method using the same
JP2008182152A (en) Reactor
JP2018046083A (en) Coil parts
JP2009156802A (en) Current sensor
CN205175336U (en) Radioresistance LVDT sensor
DE102006020265A1 (en) Magnetic-inductive sensor for use as primary transducer in line measuring instrument, has measuring tube and coil holder connected with one another in joint-free manner, so that coil is formed as integral component of measuring tube
JP4747224B1 (en) Inductance change detection circuit, displacement detection device, and metal detection device
JP2013213843A (en) Current sensor and method for manufacturing current sensor
EP3093859B1 (en) Variable differential transformer position sensor with a trapezoidal primary coil
JP5364896B2 (en) Differential transformer
JP6283784B2 (en) Resistance resolver structure of VR resolver and welding method thereof
JP2011135091A (en) Magnetic core, and coil component
JP2016133402A (en) Probe for linear sensor, and manufacturing method of the same
JP4902001B2 (en) Inductance change detection circuit, displacement detection device, and metal detection device
JP2009264992A (en) Induction type proximity sensor
JPH01313727A (en) Pressure converter

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20141009

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150812

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150818

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20151005

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151027

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151028

R150 Certificate of patent or registration of utility model

Ref document number: 5857308

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees