JPH08123613A - Electrostatic capacity type sensor - Google Patents

Electrostatic capacity type sensor

Info

Publication number
JPH08123613A
JPH08123613A JP6263690A JP26369094A JPH08123613A JP H08123613 A JPH08123613 A JP H08123613A JP 6263690 A JP6263690 A JP 6263690A JP 26369094 A JP26369094 A JP 26369094A JP H08123613 A JPH08123613 A JP H08123613A
Authority
JP
Japan
Prior art keywords
substrate
electrode
substrates
insulating sheet
electrode portion
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.)
Pending
Application number
JP6263690A
Other languages
Japanese (ja)
Inventor
Hideo Morimoto
森本  英夫
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.)
Nitta Corp
Original Assignee
Nitta Corp
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 Nitta Corp filed Critical Nitta Corp
Priority to JP6263690A priority Critical patent/JPH08123613A/en
Publication of JPH08123613A publication Critical patent/JPH08123613A/en
Pending legal-status Critical Current

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  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE: To provide the electrostatic capacity type sensor which never causes the breaking of a wire as an operation shaft moves. CONSTITUTION: This sensor is equipped with substrates 1 and 2 which are arranged in parallel opposite each other across a certain gap, a through hole 10 formed in the substrate 1, electrode parts which are provided on the opposite surfaces of the substrates 1 and 2 so as to face each other, an insulating sheet 3 which is provided between the electrode part on the side of the substrate 1 and the electrode part on the side of the substrate 2 so that it can move in parallel to the substrates 1 and 2, and the operation shaft 30 which is arranged on the insulating sheet 3 and projects from the through hole 10 in a loose insertion state. At least one side of the electrode parts provided on the substrates 1 and 2 is electrode parts Dx+ and Dx-, and Dy+ and Dy-, the dielectric constant of the insulating sheet 3 is made different from that of its peripheral materials, and a potential difference is provided between the electrode parts of the substrates 1 and 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は静電容量式センサーに
関するものであり、例えば、ディスプレイに表示される
カーソルを所望に移動させるための操作部として利用で
きる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capacitance type sensor, and can be used, for example, as an operation unit for moving a cursor displayed on a display as desired.

【0002】[0002]

【従来の技術】この種のセンサーとしては、既に、図7
に示すような形式のものを自社開発しており、出願(特
願平5−150365号)している。
2. Description of the Related Art As a sensor of this type, FIG.
In-house developed type as shown in, and has filed an application (Japanese Patent Application No. 5-150365).

【0003】このセンサーは、嵩を低くすると共に入力
部の変位量を大きくすることを目的として開発されたも
ので、図7〜図9に示すように、上面に操作軸Jを有し
ており且つ下面に電極部Dが形成された基板91と、上
面に電極部群D’(電極部Dx+,Dx−,Dy+,D
y−)が形成され且つ前記基板91と小間隙を設けて下
方に配設された基板92と、〔(電極部Dと電極部Dx
+)相互間の静電容量−(電極部Dと電極部Dx−)相
互間の静電容量〕,〔(電極部Dと電極部Dy+)相互
間の静電容量−(電極部Dと電極部Dy−)相互間の静
電容量〕を電圧Vx,Vyに変換する電子装置(図示せ
ず)とを有する構成としている。
This sensor was developed for the purpose of reducing the bulk and increasing the amount of displacement of the input section, and has an operating axis J on the upper surface as shown in FIGS. 7 to 9. A substrate 91 having an electrode portion D formed on the lower surface and an electrode portion group D ′ (electrode portions Dx +, Dx−, Dy +, D
y-) is formed and is disposed below the substrate 91 with a small gap therebetween, and [(electrode portion D and electrode portion Dx
+) Mutual capacitance- (Electrode D and electrode Dx-) Mutual capacitance], [(Electrode D and electrode Dy +) Mutual capacitance- (Electrode D and electrode And an electronic device (not shown) for converting the electrostatic capacitance between the parts Dy-) into voltages Vx and Vy.

【0004】尚、電極部Dと電極部群D’の各電極部と
によりコンデンサを構成させるために、それぞれ電気配
線してあり、特に、基板91については移動を可能とす
るために電気配線をリード線としてある。
In order to form a capacitor by the electrode portion D and each electrode portion of the electrode portion group D ', electrical wiring is provided respectively. Especially, the substrate 91 is electrically wired so as to be movable. As a lead wire.

【0005】このセンサーは上記のような構成であるか
ら、操作軸Jを介して基板91を基板92に対して平行
移動させると、電極部Dと電極部群D’の各電極部相互
間の対向面積が変化し、これに伴ってこれら相互間の静
電容量が変化する。そして、基板92に対する基板91
の変位をPx(X方向の変位)=電圧Vx,Py(Y方
向の変位)=電圧Vyとして、それぞれ出力させること
ができる。
Since this sensor has the above-mentioned structure, when the substrate 91 is moved in parallel to the substrate 92 via the operation axis J, the electrode portion D and the electrode portions of the electrode portion group D'are connected to each other. The facing area changes, and the capacitance between them changes accordingly. Then, the substrate 91 with respect to the substrate 92
Can be output as Px (displacement in X direction) = voltage Vx and Py (displacement in Y direction) = voltage Vy.

【0006】しかしながら、このセンサーでは、操作軸
Jを有する基板91が基板92に対して平行移動する際
にはリード線は引きずられることとなってしまい、この
ためリード線が断線する可能性がある。
However, in this sensor, the lead wire is dragged when the substrate 91 having the operation axis J moves in parallel to the substrate 92, and thus the lead wire may be broken. .

【0007】[0007]

【発明が解決しようとする課題】そこで、この発明で
は、操作軸の移動に伴って断線を引き起こすようなこと
がない静電容量式センサーを提供することを課題とす
る。
SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electrostatic capacitance type sensor that does not cause wire breakage due to movement of the operating shaft.

【0008】[0008]

【課題を解決するための手段】この発明の静電容量式セ
ンサーは、一定の間隔を設けて平行に対向配設された基
板1,2と、基板1に設けられた貫通孔10と、前記基
板1,2の対向面に相互に対向すべく設けられた電極部
と、前記基板1側の電極部と基板2側の電極部との間に
基板1,2に対して平行移動可能に設けられた絶縁シー
ト3と、前記絶縁シート3に配設され且つ遊挿する態様
で貫通孔10から突出させてある操作軸30とを具備し
ており、前記基板1,2に設けた電極部のうち少なくと
も一方を電極部Dx+,Dx−,Dy+,Dy−とする
と共に絶縁シート3の誘電率をこれの周りの物質のそれ
と相違するものとしてあり、更に、前記基板1,2の電
極部相互間に電位差を設けるようにしてある。
A capacitance type sensor according to the present invention includes substrates 1 and 2 which are arranged in parallel and face each other at a constant interval, through holes 10 provided in the substrate 1, and Electrode portions provided so as to face each other on the opposing surfaces of the substrates 1 and 2, and provided between the electrode portion on the substrate 1 side and the electrode portion on the substrate 2 side so as to be movable in parallel with respect to the substrates 1 and 2. The insulating sheet 3 and the operating shaft 30 which is disposed in the insulating sheet 3 and protrudes from the through hole 10 in a manner of being loosely inserted. At least one of the electrodes is made into an electrode part Dx +, Dx−, Dy +, Dy−, and the dielectric constant of the insulating sheet 3 is different from that of the substance around it, and further, between the electrode parts of the substrates 1 and 2. A potential difference is provided between the two.

【0009】[0009]

【作用】この発明は次の作用を有する。The present invention has the following functions.

【0010】このセンサーでは、基板1,2の電極部相
互間に電位差を設けるべく、固定配設された基板1,2
の電極部にリード線が結線されるが、操作軸30により
移動せしめられる絶縁シート3にはリード線は結線され
ない。したがって、操作軸30の移動に伴って断線を引
き起こすようなことがない。
In this sensor, the substrates 1 and 2 fixedly arranged in order to provide a potential difference between the electrode portions of the substrates 1 and 2.
Although the lead wire is connected to the electrode portion of, the lead wire is not connected to the insulating sheet 3 moved by the operation shaft 30. Therefore, the disconnection does not occur with the movement of the operation shaft 30.

【0011】尚、このセンサーでは、絶縁シート3の誘
電率をこれの周りの物質のそれと相違するものとしてあ
ることから、操作軸30を操作して絶縁シート3を移動
させると、その移動量に応じて一方の電極部と電極部D
x+,Dx−,Dy+,Dy−との間の各静電容量は変
化する。したがって、従来の技術に記載した電子部品を
同様に使用すると、基板1,2に対する絶縁シート3の
変位、即ち操作軸30の変位をPx(X方向の変位)=
電圧Vx,Py(Y方向の変位)=電圧Vyとして、そ
れぞれ出力させることができる。
In this sensor, since the dielectric constant of the insulating sheet 3 is different from that of the material around it, when the operating sheet 30 is operated to move the insulating sheet 3, the moving amount is changed. Depending on one electrode part and electrode part D
Each capacitance between x +, Dx-, Dy +, Dy- changes. Therefore, when the electronic component described in the conventional technique is used similarly, the displacement of the insulating sheet 3 with respect to the substrates 1 and 2, that is, the displacement of the operation shaft 30 is Px (displacement in the X direction) =
The voltages Vx and Py (displacement in the Y direction) = voltage Vy can be output respectively.

【0012】[0012]

【実施例】以下、この発明の構成を実施例として示した
図面にしたがって説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings shown as embodiments.

【0013】この実施例では、この発明の静電容量式セ
ンサーをディスプレイに表示されるカーソルの移動操作
部として採用するため、前記前記センサーを図1に示す
ように、キーボードKBに内装すると共に操作軸30を
前記キーボードKBの上壁に設けた円形状の開口Hhか
ら突出させている。尚、この実施例では、前記開口hの
大きさは、操作軸30の移動範囲がXY方向に±10m
m程度となるように設定してある。
In this embodiment, since the electrostatic capacitance type sensor of the present invention is adopted as the moving operation portion of the cursor displayed on the display, the sensor is installed in the keyboard KB and operated as shown in FIG. The shaft 30 is projected from a circular opening Hh provided on the upper wall of the keyboard KB. In this embodiment, the size of the opening h is such that the moving range of the operating shaft 30 is ± 10 m in the XY directions.
It is set to be about m.

【0014】上記静電容量センサーは、図1に示すよう
に、基板1と、前記基板1の下方に平行に対向配設され
た基板2と、前記基板1,2相互間に介在せしめられた
スペーサ4と、前記基板1,2相互間であってスペーサ
4内に設けられた絶縁シート3と、前記基板2の下面部
に配設した電子装置5とから構成してある。
As shown in FIG. 1, the capacitance sensor is interposed between a substrate 1, a substrate 2 which is disposed below the substrate 1 in parallel to face each other, and the substrates 1 and 2. It is composed of a spacer 4, an insulating sheet 3 provided in the spacer 4 between the substrates 1 and 2, and an electronic device 5 arranged on the lower surface of the substrate 2.

【0015】基板1は、図1や図2に示すように、中央
部に貫通孔10を有する円形状の合成樹脂板で構成して
あり、これの下面であって前記貫通孔10の周りには銅
を円形状に印刷またはプリント基板で形成または金属板
を取り付けて成る電極部Dを形成してある。そして、前
記電極部Dには図1に示すように、絶縁材としてテフロ
ンコーティングまたはレジスト材を塗布してある。
As shown in FIGS. 1 and 2, the substrate 1 is composed of a circular synthetic resin plate having a through hole 10 in the central portion thereof, and the lower surface of the substrate 1 surrounds the through hole 10. Has an electrode portion D formed by printing copper in a circular shape, forming a printed board, or attaching a metal plate. Then, as shown in FIG. 1, the electrode portion D is coated with Teflon coating or resist material as an insulating material.

【0016】基板2は、図1や図2に示すように、上記
基板1と同じ径の厚肉板により構成してあり、その上面
には電極部Dx+,Dx−,Dy+,Dy−(円形を9
0°間隔で四分割した形状)を上記電極部Dと同じ方法
で形成してあると共にテフロンコーティングまたはレジ
スト材を塗布してある。
As shown in FIGS. 1 and 2, the substrate 2 is composed of a thick plate having the same diameter as the substrate 1, and the upper surface thereof has electrode portions Dx +, Dx-, Dy +, Dy- (circles. 9
A shape divided into four at 0 ° intervals) is formed by the same method as that of the electrode portion D, and Teflon coating or a resist material is applied.

【0017】絶縁シート3は、図1や図4に示すよう
に、電極部Dよりも小さい径であり且つ上記貫通孔10
よりも25mm程度大きい径に設定された円形状のもの
であり、その上面にはセンサー組み立て状態において基
板1の貫通孔10に遊挿される操作軸30を具備させて
ある。尚、操作軸30を有するこの絶縁シート3は、合
成樹脂を一体成形したものであるが、前記合成樹脂とし
てはその上下面の摩擦係数が極力小さくなる樹脂を選定
することが好ましい。
As shown in FIGS. 1 and 4, the insulating sheet 3 has a diameter smaller than that of the electrode portion D and the through hole 10 is formed.
The diameter is about 25 mm larger than that of the circular shape, and the upper surface thereof is provided with an operation shaft 30 which is loosely inserted into the through hole 10 of the substrate 1 in the sensor assembled state. The insulating sheet 3 having the operation shaft 30 is formed by integrally molding a synthetic resin, and it is preferable to select a resin having a friction coefficient on the upper and lower surfaces thereof as small as possible as the synthetic resin.

【0018】ここで、上記電極部Dの中心と電極部Dx
+,Dx−,Dy+,Dy−の配置の中心とは一致させ
てあり、また、操作力が操作軸30に作用せず絶縁シー
ト3が原点復帰(バネ等により復帰力を付与)している
ときには、前記電極部Dx+,Dx−,Dy+,Dy−
の配置の中心と前記絶縁シート3の中心とが一致するよ
うになっている。また、この実施例では、電極部Dx
+,Dx−,Dy+,Dy−に電圧を引加すると共に電
極部Dを接地してあり、これにより、前記電極部相互間
に電位差を設けるようにしてある。
Here, the center of the electrode portion D and the electrode portion Dx
The positions of +, Dx-, Dy +, and Dy- are aligned with each other, and the operating force does not act on the operating shaft 30 and the insulating sheet 3 returns to the origin (the restoring force is given by a spring or the like). Sometimes, the electrode parts Dx +, Dx-, Dy +, Dy-
The center of the arrangement and the center of the insulating sheet 3 coincide with each other. In addition, in this embodiment, the electrode portion Dx
A voltage is applied to +, Dx-, Dy +, and Dy-, and the electrode portion D is grounded so that a potential difference is provided between the electrode portions.

【0019】スペーサ4は、図1に示すように、外径が
基板1,2のそれと一致しており且つ内径が電極部Dよ
りも大きい円環状のものであり、これにより、基板1,
2相互間の間隙を保っている。
As shown in FIG. 1, the spacer 4 has a ring shape whose outer diameter is the same as that of the substrates 1 and 2 and whose inner diameter is larger than that of the electrode portion D.
Keeps a gap between the two.

【0020】電子装置5は、〔(電極部Dと電極部Dx
+相互間の静電容量Cx+)−(電極部Dと電極部Dx
−相互間の静電容量Cx−)〕,〔(電極部Dと電極部
Dy+相互間の静電容量Cy+)−(電極部Dと電極部
Dy−相互間の静電容量Cy−〕を電圧Vx,Vyに変
換するものとしてある。
The electronic device 5 includes the [(electrode part D and electrode part Dx
+ Capacitance Cx +)-(Electrode D and Electrode Dx)
-Capacitance Cx-)], [(Capacitance Cy + between the electrode portion D and the electrode portion Dy +)-(Electrostatic capacity Cy- between the electrode portion D and the electrode portion Dy-]] It is to be converted into Vx and Vy.

【0021】以下、各電極部相互間の静電容量を電圧変
換する原理について説明する。 (1) 電極部Dと電極部Dx+,Dx−,Dy+,Dy−
の距離:d 空気中の誘電率:ε 絶縁シート3の誘電率:ε1 とする。
The principle of converting the electrostatic capacitance between the electrode portions into a voltage will be described below. (1) Electrode part D and electrode parts Dx +, Dx-, Dy +, Dy-
Distance: d Dielectric constant in air: ε Dielectric constant of insulating sheet 3: ε 1 .

【0022】また、絶縁コーティングの厚みはdに比べ
て十分に小さく、電極間に均一に存在するので、機能的
には無視して考えても支障は無い。そこで、ここでは簡
単のため無視して説明する。 (2) 絶縁シート3が原点位置にあるときには、図4に示
す如く、絶縁シート3が電極部D及び電極部Dx+,D
x−,Dy+,Dy−に重なる面積をS1,電極部D及
び電極部Dx+,Dx−,Dy+,Dy−に重ならない
面積S2とすると、各電極部相互間の静電容量は(Cx
+)=(Cx−)=(Cy+)=(Cy−)となる。即
ち、各電極部相互間の静電容量は全て、
Further, since the thickness of the insulating coating is sufficiently smaller than d and uniformly exists between the electrodes, there is no problem even if it is ignored functionally. Therefore, for simplicity, the description will be ignored. (2) When the insulating sheet 3 is at the origin position, as shown in FIG. 4, the insulating sheet 3 has the electrode portion D and the electrode portions Dx +, Dx.
If the area overlapping with x−, Dy +, Dy− is S1, the area S2 not overlapping with the electrode portion D and the electrode portions Dx +, Dx−, Dy +, Dy−, the capacitance between the electrode portions is (Cx
+) = (Cx −) = (Cy +) = (Cy−). That is, the capacitance between the electrode parts is

【0023】 [0023]

【0024】このとき、電子回路5を用いて〔(Cx
+)−(Cx−)〕,〔(Cy+)−(Cy−)〕を演
算し、電圧に変換した場合の電圧をVx,Vyとすれば
Vx=Vx0 ,Vy=Vy0 (Vx0 ,Vy0 はオフセ
ット電圧)となる。即ち、電圧Vx,VyはX,Y軸用
回路のそれぞれのオフセット電圧分だけとなる。 (3) 操作軸30を介して絶縁シート3をX軸方向に移動
せしめると、図5に示すように、絶縁シート3が電極部
D及び電極部Dx+,Dx−,Dy+,Dy−に重なる
面積は変化する。絶縁シート3が電極部D及び電極部D
x+,Dx−,Dy+,Dy−に重なる面積をSx
1 +,Sx1 −と、電極部D及び電極部Dx+,Dx
−,Dy+,Dy−に重ならない面積Sx2 +,Sx2
とすると、Cx+,Cx−の静電容量は、
At this time, using the electronic circuit 5, [(Cx
+) − (Cx−)], [(Cy +) − (Cy−)] are calculated and the voltages converted into voltages are Vx and Vy, Vx = Vx 0 , Vy = Vy 0 (Vx 0 , Vy 0 is an offset voltage). That is, the voltages Vx and Vy are only offset voltages of the X and Y axis circuits. (3) When the insulating sheet 3 is moved in the X-axis direction via the operation shaft 30, the area where the insulating sheet 3 overlaps the electrode portion D and the electrode portions Dx +, Dx−, Dy +, Dy− as shown in FIG. Changes. Insulating sheet 3 is electrode portion D and electrode portion D
Sx is the area that overlaps x +, Dx-, Dy +, Dy-
1 +, Sx 1 − and the electrode part D and the electrode parts Dx +, Dx
Areas that do not overlap −, Dy +, Dy− Sx 2 +, Sx 2
Then, the electrostatic capacitance of Cx +, Cx- is

【0025】 [0025]

【0026】(Cx+)≠(Cx−)となる。(Cx +) ≠ (Cx−).

【0027】したがって、Vx=Vx0 +ΔVx1 〔Δ
Vx1 :(Cx+)と(Cx−)の差に応じた電圧〕,
Vy=Vy0 となる。また、操作軸30を上記と反対側
に移動させると、Vx=Vx0 −ΔVx1 ,Vy=Vy
0 となる。
Therefore, Vx = Vx 0 + ΔVx 1
Vx 1 : voltage according to the difference between (Cx +) and (Cx−)],
Vy = Vy 0 . Further, when the operating shaft 30 is moved to the side opposite to the above, Vx = Vx 0 -ΔVx 1, Vy = Vy
It becomes 0 .

【0028】なお、上記のことはY軸に関しても同様の
ことがいえる。つまり、絶縁シート3と電極との相対的
な位置によりVx,Vyの大きさが決定されるのであ
る。 (4) (3)の原理を用いてVx,Vyの電圧をコンピュー
タのカーソルの位置を制御する信号に変換すれば、操作
軸30を前後左右に動かすことにより、ディスプレイ上
のカーソルを所望の位置に移動させることができること
になる。 (5) ここで、図6に応用例を示す。IC1を通してデュ
ーティ50%のクロックを供給するとIC2,IC3に
は時定数R1 ・(Cx+),R2 ・(Cx−),R3
(Cy+),R4 ・(Cy−)によって決まるパルス波
形が発生する。このパルスをR5 とC1 から成るフィル
タとR6 とC2 から成るフィルタで平滑すればX,Y軸
方向の位置がアナログ電圧として検出できる。この電気
信号をマイクロプロセッサーによりパソコンのカーソル
を制御できる適当な上方に変換すれば、センサーの操作
軸30によりディスプレイ上のカーソルを制御できるこ
とになる。
The same applies to the Y-axis. That is, the magnitudes of Vx and Vy are determined by the relative positions of the insulating sheet 3 and the electrodes. (4) If the voltage of Vx, Vy is converted into a signal for controlling the position of the cursor of the computer by using the principle of (3), the cursor on the display can be moved to the desired position by moving the operation shaft 30 back and forth and left and right. It will be possible to move to. (5) Here, FIG. 6 shows an application example. When a clock with a duty of 50% is supplied through IC1, IC2 and IC3 have time constants R 1 · (Cx +), R 2 · (Cx−), R 3 ·.
A pulse waveform determined by (Cy +), R 4 · (Cy−) is generated. If this pulse is smoothed by a filter composed of R 5 and C 1 and a filter composed of R 6 and C 2 , the position in the X and Y axis directions can be detected as an analog voltage. If this electric signal is converted into an appropriate upward direction capable of controlling the cursor of the personal computer by the microprocessor, the cursor on the display can be controlled by the operation shaft 30 of the sensor.

【0029】尚、上記実施例において絶縁シート3の周
りの物質が、空気又はSiオイルである構成を採用する
ことができる。
In the above embodiment, the material around the insulating sheet 3 may be air or Si oil.

【0030】[0030]

【発明の効果】上記した作用に記載した内容から、操作
軸の移動に伴って断線を引き起こすようなことがない静
電容量式センサーを提供できた。
From the contents described in the above operation, it is possible to provide the electrostatic capacitance type sensor which does not cause the disconnection due to the movement of the operation shaft.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の実施例の静電容量式センサーをディ
スプレイに表示されるカーソルを移動させるための操作
部としてキーボード内に装着したときの断面図。
FIG. 1 is a cross-sectional view of a capacitance type sensor according to an embodiment of the present invention mounted in a keyboard as an operation unit for moving a cursor displayed on a display.

【図2】前記静電容量式センサーを構成する上側の基板
とこれに設けられた電極を示す平面図。
FIG. 2 is a plan view showing an upper substrate and electrodes provided on the upper substrate which constitute the capacitance type sensor.

【図3】前記静電容量式センサーを構成する下側の基板
とこれに設けられた電極を示す平面図。
FIG. 3 is a plan view showing a lower substrate and electrodes provided on the lower substrate that constitute the capacitance sensor.

【図4】前記した双方の基板に設けられた電極と絶縁シ
ートとの位置関係を示しており、絶縁シートが原点位置
にある場合を示す平面図。
FIG. 4 is a plan view showing a positional relationship between electrodes provided on both of the substrates and an insulating sheet, and showing a case where the insulating sheets are at an origin position.

【図5】前記した双方の基板に設けられた電極と絶縁シ
ートとの位置関係を示しており、絶縁シートが原点位置
からX軸方向にずれた場合を示す平面図。
FIG. 5 is a plan view showing a positional relationship between electrodes provided on both of the substrates and an insulating sheet, and showing a case where the insulating sheet is displaced from the origin position in the X-axis direction.

【図6】前記静電容量式センサーに具備させる電子回路
の応用例を示す図。
FIG. 6 is a diagram showing an application example of an electronic circuit provided in the capacitance type sensor.

【図7】先行技術の静電容量式センサーの断面図。FIG. 7 is a cross-sectional view of a prior art capacitive sensor.

【図8】先行技術の静電容量式センサーを構成する上側
基板とこれに設けられた電極部を示す平面図。
FIG. 8 is a plan view showing an upper substrate that constitutes a capacitance sensor of the prior art and an electrode portion provided on the upper substrate.

【図9】先行技術の静電容量式センサーを構成する下側
基板とこれに設けられた電極部を示す平面図。
FIG. 9 is a plan view showing a lower substrate and an electrode portion provided on the lower substrate which constitute the capacitance type sensor of the prior art.

【符号の説明】[Explanation of symbols]

1 基板 2 基板 3 絶縁シート 10 貫通孔 30 操作軸 D 電極部 Dx+ 電極部 Dx− 電極部 Dy+ 電極部 Dy− 電極部 1 Substrate 2 Substrate 3 Insulating Sheet 10 Through Hole 30 Operation Axis D Electrode Part Dx + Electrode Part Dx− Electrode Part Dy + Electrode Part Dy− Electrode Part

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 一定の間隔を設けて平行に対向配設され
た基板(1)(2)と、基板(1)に設けられた貫通孔
(10)と、前記基板(1)(2)の対向面に相互に対
向すべく設けられた電極部と、前記基板(1)側の電極
部と基板(2)側の電極部との間に基板(1)(2)に
対して平行移動可能に設けられた絶縁シート(3)と、
前記絶縁シート(3)に配設され且つ遊挿する態様で貫
通孔(10)から突出させてある操作軸(30)とを具
備しており、前記基板(1)(2)に設けた電極部のう
ち少なくとも一方を電極部(Dx+)(Dx−)(Dy
+)(Dy−)とすると共に絶縁シート(3)の誘電率
をこれの周りの物質のそれと相違するものとしてあり、
更に、前記基板(1)(2)の電極部相互間に電位差を
設けるようにしてあることを特徴とする静電容量式セン
サー。
1. Substrates (1) and (2), which are arranged in parallel to each other with a constant space, through holes (10) provided in the substrate (1), and the substrates (1) and (2). Parallel to the substrates (1) and (2) between the electrode portions provided to face each other on the opposite surface of the substrate and the electrode portion on the substrate (1) side and the electrode portion on the substrate (2) side. An insulating sheet (3) that can be installed,
An electrode provided on the substrate (1) (2), which is provided on the insulating sheet (3) and has an operating shaft (30) protruding from the through hole (10) in a loosely inserted manner. At least one of the parts is an electrode part (Dx +) (Dx-) (Dy
+) (Dy-), and the dielectric constant of the insulating sheet (3) is different from that of the material around it.
Furthermore, the electrostatic capacitance type sensor characterized in that a potential difference is provided between the electrode portions of the substrates (1) and (2).
【請求項2】 絶縁シート(3)の周りの物質が、空気
又はSiオイルであることをを特徴とする請求項1記載
の静電容量式センサー。
2. The capacitance type sensor according to claim 1, wherein the substance around the insulating sheet (3) is air or Si oil.
JP6263690A 1994-10-27 1994-10-27 Electrostatic capacity type sensor Pending JPH08123613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6263690A JPH08123613A (en) 1994-10-27 1994-10-27 Electrostatic capacity type sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6263690A JPH08123613A (en) 1994-10-27 1994-10-27 Electrostatic capacity type sensor

Publications (1)

Publication Number Publication Date
JPH08123613A true JPH08123613A (en) 1996-05-17

Family

ID=17392989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6263690A Pending JPH08123613A (en) 1994-10-27 1994-10-27 Electrostatic capacity type sensor

Country Status (1)

Country Link
JP (1) JPH08123613A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002044649A1 (en) * 2000-11-30 2002-06-06 Nitta Corporation Capacitive sensor
KR100484992B1 (en) * 2001-11-22 2005-04-25 오므론 가부시키가이샤 Input Device
GB2422906A (en) * 2004-12-23 2006-08-09 Agilent Technologies Inc Slide Pad Cursor Control System And Method
JP2008052661A (en) * 2006-08-28 2008-03-06 Nec Corp Input device and information processor
ES2310439A1 (en) * 2006-03-03 2009-01-01 Centro De Estudios E Investigaciones Tecnicas De Guipuzcoa (Ceitg) Low consumption circuit for a capacitive transducer (Machine-translation by Google Translate, not legally binding)
WO2009050307A1 (en) * 2007-10-15 2009-04-23 Farsens, S.L. Low-consumption circuit for a capacitive transducer
JP2012510663A (en) * 2008-12-08 2012-05-10 エーティーラブ・インコーポレーテッド Pack type pointing device, pointing system and pointing method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002044649A1 (en) * 2000-11-30 2002-06-06 Nitta Corporation Capacitive sensor
EP1347263A1 (en) * 2000-11-30 2003-09-24 Nitta Corporation Capacitive sensor
US6989677B2 (en) 2000-11-30 2006-01-24 Nitta Corporation Capacitance type sensor
EP1347263A4 (en) * 2000-11-30 2008-06-25 Nitta Corp Capacitive sensor
KR100484992B1 (en) * 2001-11-22 2005-04-25 오므론 가부시키가이샤 Input Device
GB2422906A (en) * 2004-12-23 2006-08-09 Agilent Technologies Inc Slide Pad Cursor Control System And Method
US7349822B2 (en) 2004-12-23 2008-03-25 Avago Technologies Ecbu Ip Pte Ltd. Slide pad system and method
ES2310439A1 (en) * 2006-03-03 2009-01-01 Centro De Estudios E Investigaciones Tecnicas De Guipuzcoa (Ceitg) Low consumption circuit for a capacitive transducer (Machine-translation by Google Translate, not legally binding)
JP2008052661A (en) * 2006-08-28 2008-03-06 Nec Corp Input device and information processor
WO2009050307A1 (en) * 2007-10-15 2009-04-23 Farsens, S.L. Low-consumption circuit for a capacitive transducer
JP2012510663A (en) * 2008-12-08 2012-05-10 エーティーラブ・インコーポレーテッド Pack type pointing device, pointing system and pointing method

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