JPS62130321A - Pressure detector - Google Patents

Pressure detector

Info

Publication number
JPS62130321A
JPS62130321A JP26954485A JP26954485A JPS62130321A JP S62130321 A JPS62130321 A JP S62130321A JP 26954485 A JP26954485 A JP 26954485A JP 26954485 A JP26954485 A JP 26954485A JP S62130321 A JPS62130321 A JP S62130321A
Authority
JP
Japan
Prior art keywords
contact
pressure
resistance circuit
resistance
pattern
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
JP26954485A
Other languages
Japanese (ja)
Inventor
Keisoku Tanaga
田永 恵則
Hideo Iida
秀雄 飯田
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.)
Kokoku Rubber Industry Co Ltd
Original Assignee
Kokoku Rubber Industry 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 Kokoku Rubber Industry Co Ltd filed Critical Kokoku Rubber Industry Co Ltd
Priority to JP26954485A priority Critical patent/JPS62130321A/en
Publication of JPS62130321A publication Critical patent/JPS62130321A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To accurately detect the pressure by providing a resistance circuit base having a couple of electrodes and a block contact forming a parallel variable resistance circuit electrically keeping contact with the base at all times. CONSTITUTION:The resistance circuit base 11 can form freely an optional pattern as occasion arises by the printing, etc., and on the other hand, the block contact 12 consisting of conductive and elastic material can form each type of point contact, line contact and surface contact, etc., in accordance with the pattern of the resistance circuit. Further, a plunger 13 transmits the external force to the contact 12 accurately in order to bring stably the block contact 12 into contact with the resistance circuit base 11. Then, the contact 12 is in contact with the resistance circuit base 11 in a nonpressure state and the pressure from zero can be detected. Further, since the resistance circuit sets an initial value, it has the stable pressure detecting ability. Moreover, a change of a resistance value is measured only at a contact part between the contact 12 and the resistance circuit and the linear pressure/resistance value characteristic is obtained by determining each shape most suitably and the accurate pressure can be detected.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、圧力センナや圧力スイッチとして利用でき
る圧力検知器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pressure sensor that can be used as a pressure sensor or a pressure switch.

〔従来の技術〕[Conventional technology]

第11.12図は、例えば実開昭60−39523号公
報に示された従来の圧力検知器としての導電ゴムスイッ
チである0図中1は導電ゴムシートまたは櫛目電極、2
は相互に適宜の間隔を有する少なくとも3個の絶縁性突
起3を突設した他の導電ゴムシートであり、両導電ゴム
シート1.2は無圧状態では接触しないように絶縁性突
起3を介して積層されている。4は少なくとも1個の先
細状の弾性突起5が上記の絶縁性突起3に重ならない位
置に設けられたゴムや合成樹脂からなる可撓性シートで
あり、導電ゴムシート2の上に重ね合わせである。6.
7は電極、8は電源、9は電流計である。
Figures 11 and 12 show a conductive rubber switch as a conventional pressure detector shown in, for example, Japanese Utility Model Application Publication No. 60-39523.
is another conductive rubber sheet having at least three insulating protrusions 3 protruding from each other at appropriate intervals, and both conductive rubber sheets 1.2 are separated by insulating protrusions 3 so as not to contact each other under no pressure. It is laminated. 4 is a flexible sheet made of rubber or synthetic resin in which at least one tapered elastic protrusion 5 is provided at a position that does not overlap the insulating protrusion 3; be. 6.
7 is an electrode, 8 is a power source, and 9 is an ammeter.

このように構成された積層構造の複合導電ゴムスイッチ
10は、可撓性シート4に圧力が加えられていない時、
隔離された電極6,7間の抵抗は無限大であり、全く電
流が流れない、可撓性シート4に圧力が加わると鎖線で
示したように導電ゴムシート2かわん曲して導電ゴムシ
ー)1に接触し、電極6,7の間で直列抵抗回路が形成
され電流が流れる。この電流イ^は可撓性シート4を押
圧する圧力により変化する接触部の抵抗に応じて変化す
るから、この電流を測定することにより加えられた圧力
の大きさを知ることができる。
The composite conductive rubber switch 10 with the laminated structure configured as described above has the following characteristics: when no pressure is applied to the flexible sheet 4;
The resistance between the isolated electrodes 6 and 7 is infinite, and no current flows at all. When pressure is applied to the flexible sheet 4, the conductive rubber sheet 2 bends as shown by the chain line (conductive rubber sheet) 1 A series resistance circuit is formed between the electrodes 6 and 7, and a current flows. This current I^ changes in accordance with the resistance of the contact portion which changes with the pressure applied to the flexible sheet 4, so by measuring this current it is possible to know the magnitude of the applied pressure.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

外圧力により変形して固定電極に接触する接触子が導電
ゴムシートであり、該導電ゴムシートは前記固定電極と
無圧状態では接触しない様に絶縁性突起を介して絶縁隔
離されている。このため。
The contact that deforms due to external pressure and comes into contact with the fixed electrode is a conductive rubber sheet, and the conductive rubber sheet is insulated and isolated via an insulating protrusion so that it does not come into contact with the fixed electrode in a non-pressure state. For this reason.

(イ)低圧力での圧力検出が出来なかったり、(ロ)導
電ゴムシートの永久歪により電極との間隔が経時的に変
化するため圧力の検出バラツキが大息かったり、(ハ)
圧力の変化に対する抵抗値の変化が直線的でないため、
演算回路等による補正を必要とする堂どの不具合があり
、かなり大ざっばな荷重の検出(例えば、自動車の通過
台数検出)には使用出来ても、正確さを要する荷重の検
出(例えば、物体の重量測定)には使用することが出来
ないという問題点があった。
(b) Pressure detection at low pressures is not possible; (b) the distance between the electrodes changes over time due to permanent distortion of the conductive rubber sheet, resulting in large variations in pressure detection; and (c)
Because the change in resistance value with respect to pressure change is not linear,
There are obvious defects that require correction using arithmetic circuits, etc., and although it can be used for fairly rough load detection (for example, detecting the number of passing cars), it can be used for load detection that requires accuracy (for example, object detection). There was a problem that it could not be used for measuring the weight of

この発明は、このような従来の問題点に着目してなされ
たものであり、正確なしかも再現性の高い圧力検出器を
提供することを目的としている。
The present invention has been made in view of these conventional problems, and aims to provide a pressure detector that is accurate and highly reproducible.

〔問題点を解決するための手段〕[Means for solving problems]

上記の目的を達成するこの発明は、少なくとも1対の電
極を有して印刷等の手段により形成された抵抗回路基板
と、導電性弾性材からなり、前記抵抗回路基板と常時接
触を保つと共に、無加圧状態から加圧状態に及びその接
触面積が漸次変化して、電気的に並列の可変抵抗回路を
形成するブロック接触子とを備えたことを特徴とする圧
力検知器である。
The present invention, which achieves the above object, comprises a resistive circuit board having at least one pair of electrodes formed by means such as printing, and a conductive elastic material, which maintains constant contact with the resistive circuit board, and This pressure sensor is characterized by comprising a block contact whose contact area gradually changes from a non-pressurized state to a pressurized state to form an electrically parallel variable resistance circuit.

〔作用〕[Effect]

この発明における抵抗回路基板は、印刷等の手段により
必要な抵抗値に予め調整容易で、しかも必要に応じて任
意のパターンを自在に形成できる。一方、導電性弾性材
からなるブロック接触子は、抵抗回路のパターンに応じ
て1点接触、線接触、面接触等の各タイプを形成できる
。それらの接触子は抵抗回路基板に無圧状態で接触して
おり、零からの圧力検出が可能である。また、抵抗回路
で初期値設定をするから、安定した圧力検出能力がある
。しかも、抵抗値の変化は接触子と抵抗回路との接触部
分だけで計測され、各々の形状を最適に定めることで直
線的な圧力/抵抗値特性が得られる。
The resistance circuit board according to the present invention can be easily adjusted in advance to a required resistance value by means such as printing, and can be freely formed into any pattern as required. On the other hand, block contacts made of conductive elastic material can be of various types, such as one-point contact, line contact, and surface contact, depending on the pattern of the resistance circuit. These contacts are in pressureless contact with the resistor circuit board, and pressure can be detected from zero. In addition, since the initial value is set using a resistor circuit, it has stable pressure detection ability. Moreover, the change in resistance value is measured only at the contact portion between the contactor and the resistance circuit, and linear pressure/resistance value characteristics can be obtained by optimally determining each shape.

〔実施例〕〔Example〕

以下、この発明の一実施例を図面に基づき説明する。第
1図は圧力検出器の縦断側面図であり。
Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a longitudinal side view of the pressure detector.

図中11は少なくとも1対の電極E、、E2を有して、
印刷等の手段により所定の回路パターンが形成されてい
る抵抗回路基板、12はこの抵抗回路基板11と常に弾
性的に接触すると共に、無加圧状態から加圧状態に及び
、その接触面積が変化するブロック接触子、13は抵抗
回路基板11にブロック接触子12を安定して接触させ
るべく。
In the figure, 11 has at least one pair of electrodes E, E2,
The resistive circuit board 12, on which a predetermined circuit pattern is formed by means such as printing, is always in elastic contact with the resistive circuit board 11, and its contact area changes from a non-pressure state to a pressurized state. The block contactor 13 is designed to bring the block contactor 12 into stable contact with the resistance circuit board 11.

外力を正確にその接触子12に伝えるためのプランジャ
、14は以上の各構成部品11〜13を収容するケース
である。
A plunger 14 for accurately transmitting external force to the contact 12 is a case that accommodates each of the above components 11 to 13.

更に詳述すると、抵抗回路基板11は、電気絶縁性の樹
脂材料よりなる基板11aの表面に、銅などからなる電
極E+ 、E2  (必要に応じて金等のメッキを施す
)を形成し、その電極E、、E2間は導電性インクを用
いた印刷回路15で連かれている。第2図〜第4図はこ
のようにして形成された印刷抵抗回路パターンを例示し
たものであり、第2図のものは、1対の電極81〜22
間を、均一な寸法の1本の線状パターンを有する印刷回
路15で連結している。第3図のものは、1対の電極8
1〜22間を中央部で最も狭く、電極に近づくにつれ線
幅が広がる不均一パターンを有する印刷回路15で連結
している。第4図のものは、電極E1〜E2が2対あり
、それぞれに第2図のものと同様、均一幅の1木の線状
パターンを有する印刷回路15で連結され、並列に形成
された印刷回路15.15間は絶縁されている。
More specifically, the resistance circuit board 11 includes electrodes E+ and E2 made of copper or the like (plated with gold or the like as necessary) on the surface of the board 11a made of an electrically insulating resin material. The electrodes E, E2 are connected by a printed circuit 15 using conductive ink. 2 to 4 illustrate printed resistor circuit patterns formed in this way, and the one in FIG. 2 shows a pair of electrodes 81 to 22.
They are connected by a printed circuit 15 having a single linear pattern of uniform dimensions. The one in Figure 3 has a pair of electrodes 8
1 to 22 are connected by a printed circuit 15 having a non-uniform pattern that is narrowest at the center and widens as it approaches the electrode. The one in FIG. 4 has two pairs of electrodes E1 to E2, each connected by a printed circuit 15 having a single linear pattern of uniform width, similar to the one in FIG. 2, and printed circuits formed in parallel. The circuits 15 and 15 are insulated.

ブロー2り状の接触子12は、ゴム等の高分子弾性材料
に、カーボンブラック等の導電性付与剤を添加して得ら
れる公知の導電性弾性材から成形加工される。その形状
は、抵抗回路基板11との接触部において、無加圧時は
点接触(又は線接触)であり、加圧力の増大に伴い、接
触部面積が増大する形状が好ましい、第5,6図はその
形状の一例を示すものであり、第5図のものは円筒胴部
12aと傾創角αの円錐状頭部12bを有する中実構造
に、一方第6図のものは上記と同様の外形に対し肉厚(
d)となるように凹部12cを形成した構造に成形され
ている。このような接触子12の比抵抗は、印刷抵抗回
路11の電極El、E2間抵抗に比抵抗、遥かに小さい
ものが好ましい。
The blow 2-shaped contact 12 is molded from a known conductive elastic material obtained by adding a conductivity imparting agent such as carbon black to a polymeric elastic material such as rubber. The shape of the contact portion with the resistance circuit board 11 is preferably a point contact (or line contact) when no pressure is applied, and a shape in which the area of the contact portion increases as the pressure increases. The figure shows an example of the shape, and the one in Figure 5 has a solid structure having a cylindrical body 12a and a conical head 12b with an angle of inclination α, while the one in Figure 6 is the same as above. The wall thickness (
d) The recessed portion 12c is formed in the structure shown in FIG. The specific resistance of such a contactor 12 is preferably much smaller than the resistance between the electrodes El and E2 of the printed resistance circuit 11.

プランジャ13は、合成樹脂等の絶縁材料から成り、一
端には接触子12を取り付ける凹み13aがあり、他端
に外圧力を加える突起部13bがある。13cは接触子
12が加圧変形した際の逃げとなる凹部である。プラン
ジャ13はケース14から突出させた突起部13bが押
圧されると。
The plunger 13 is made of an insulating material such as synthetic resin, and has a recess 13a at one end for attaching the contact 12, and a protrusion 13b for applying external pressure at the other end. 13c is a concave portion that serves as a relief when the contactor 12 is deformed under pressure. When the plunger 13 is pressed by the projection 13b protruding from the case 14.

ケース14の内壁に案内されて摺動し、接触子12を加
圧する。
It slides while being guided by the inner wall of the case 14 and pressurizes the contactor 12.

上記のブロック接触子12と抵抗回路基板11の各パタ
ーンとの組み合わせ方により、種々の圧力/抵抗特性が
得られる。すなわち、第2図に示される抵抗回路パター
ン(以下、「Aパターン」という)及び第3図に示され
る抵抗回路パターン(以下、「Bパターン」という)に
ブロック接触子12を組み合わせる場合は、いずれも各
パターンの印刷回路15の中心部0にブロック接触子1
2の円錐頂点12Pt−接触させるように組み込む。こ
のようにした場合の圧力検知器の初期抵抗は、印刷抵抗
回路自体の抵抗Ro(パターンの電極間抵抗)となり、
線幅、線長等を21節することで、予め正確、な値に制
御することが容易である。
Various pressure/resistance characteristics can be obtained depending on how the block contactor 12 and each pattern of the resistance circuit board 11 are combined. That is, when combining the block contactor 12 with the resistance circuit pattern shown in FIG. 2 (hereinafter referred to as "A pattern") and the resistance circuit pattern shown in FIG. 3 (hereinafter referred to as "B pattern"), There is also a block contact 1 in the center 0 of the printed circuit 15 of each pattern.
2 conical apex 12Pt - assembled in contact. In this case, the initial resistance of the pressure sensor is the resistance Ro of the printed resistance circuit itself (resistance between the electrodes of the pattern),
By dividing the line width, line length, etc. into 21 sections, it is easy to control the line width, line length, etc. to accurate values in advance.

この初期状態からプランジャ13を介して圧力による荷
重が増加していくと、印刷回路15と接触子12の先端
12Fとの接触面積が増加していき、互いに接触した部
分が電気的に並列回路を構成して、電極間抵抗が減少し
ていくことになる。
As the pressure load increases from this initial state via the plunger 13, the contact area between the printed circuit 15 and the tip 12F of the contactor 12 increases, and the mutually contacting parts electrically form a parallel circuit. As a result, the inter-electrode resistance decreases.

いま、印刷抵抗回路の初期抵抗をRo、荷重F時の抵抗
をRとし、この時の接触子12と印刷回路15との接触
径をり1回路の電極間距離をL、接触子12の体積固有
抵抗値をσすると、で表わされる。
Now, the initial resistance of the printed resistance circuit is Ro, the resistance at load F is R, the contact diameter between the contact 12 and the printed circuit 15 at this time is L, the distance between the electrodes of one circuit is L, and the volume of the contact 12 is When the specific resistance value is σ, it is expressed as.

ここに接触径りは荷重Fと比例関係にあるため、荷重増
加に伴ない端子間抵抗が減少することになる。荷重変化
ΔFの時、接触径がΔDだけ変化したとすると、端子間
抵抗の変化ΔRは。
Since the contact radius is proportional to the load F, the resistance between the terminals decreases as the load increases. If the contact diameter changes by ΔD when the load changes ΔF, then the change in resistance between the terminals ΔR is.

となる、従って、ΔDが増加であれがΔRは減少し、Δ
Dが減少であればΔRは増加する。
Therefore, even though ΔD increases, ΔR decreases and Δ
If D decreases, ΔR increases.

また、ROがσに対して非常に大きい場合はが容易とな
る。
Moreover, when RO is very large with respect to σ, it becomes easy.

これに対して、ブロック接触子12を、第4図に示され
る抵抗回路パターン(以下「Cパターン」という)に組
み合わせる場合は、接触子12の円錐頂点12PをCパ
ターンの中間にある中心点0autに接触させるように
組み込む、このようにすると、ある圧力状態以上で接触
子12かつぶれて両印刷回路15.15間を連結したと
き始めて導通可使であり、スイッチを兼ねた圧力検知が
行える。
On the other hand, when the block contactor 12 is combined with the resistance circuit pattern shown in FIG. In this way, when the contact 12 is crushed under a certain pressure state and the two printed circuits 15 and 15 are connected, it becomes conductive and can be used for pressure detection that also functions as a switch.

次に各種の実験例に基づいて作用を説明する。Next, the effects will be explained based on various experimental examples.

〈実験例1〉 導?lt性シリコーンゴムKE−360IU (信越化
学製)を用いて、外径φ12m5傾斜角α=20度の接
触子(第5図)を加工し、線幅W=0.5重量電極間L
 = 12m層のAパターンを有する抵抗回路基板と接
触させたところ、無加圧時に12にΩであった電極間抵
抗値が、加圧IKgで8にΩまで徐々に減少する良好な
圧力応答性が得られた(第7図、線20参照)。
<Experiment example 1> Guidance? Using LT silicone rubber KE-360IU (manufactured by Shin-Etsu Chemical), a contact (Fig. 5) with an outer diameter of 12 m and an inclination angle of α = 20 degrees was fabricated, and a line width W = 0.5 and a weight electrode distance L.
= When brought into contact with a resistance circuit board having a 12m layer A pattern, the inter-electrode resistance value, which was 12Ω when no pressure was applied, gradually decreased to 8Ω when applied with IKg, showing good pressure response. was obtained (see Figure 7, line 20).

〈実験例2〉 中央部線幅W H−0,5mmで電極に近づくにつれて
線幅が広がり電極部に於ける線幅W2が8■層、電極間
距離りが12■■のBパターンの抵抗回路基板を、接触
子(第5図)と接触させたところ、無加圧時に5にΩで
あった電極間抵抗値が加圧IKgでIKΩまでほぼ直線
的に抵抗値変化をする非常に良好な圧力応答性が得られ
た(第7図、線21参照)。
<Experimental example 2> The line width at the center is W H - 0.5 mm, and the line width widens as it approaches the electrode, and the line width W2 at the electrode part is 8 ■ layers, and the distance between the electrodes is 12 ■ ■. Resistance of pattern B When the circuit board was brought into contact with the contactor (Fig. 5), the resistance value between the electrodes, which was 5Ω when no pressure was applied, changed almost linearly to IKΩ when the pressure was applied to IKg, which was very good. A good pressure response was obtained (see line 21 in FIG. 7).

(実験例3〉 線幅W−0,51m’ilt極間距離L12−脂の抵抗
回路を2水平行に4鳳■の間隔で形成したCパターンの
抵抗回路基板に、接触子(第5図)を接触させたところ
、無加圧時に閉回路で12にΩ開回路で無限大であった
電極間抵抗値が1Kgの加圧で、8.5にΩまで徐々に
減少する良好な圧力応答性が得られた(第7図、線22
参照)。
(Experimental Example 3) A contactor (Fig. 5 ), the interelectrode resistance value, which was 12Ω in a closed circuit and infinite in an open circuit when no pressure was applied, gradually decreased to 8.5Ω with a pressure of 1 kg, resulting in a good pressure response. (Figure 7, line 22)
reference).

この場合、 0.2Kgの加圧までは閉回路の場合には
電極抵抗値の変化が見られず、開回路の場合には無限大
抵抗値のままであり、  0.2Kg付近の加圧力で開
回路の場合に電極間抵抗値が閉回路の場合と合致する様
になり、スイッチとしての挙動を併せ持った圧力検出器
が得られた。
In this case, there is no change in the electrode resistance value in the case of a closed circuit until a pressure of 0.2 kg is applied, and the resistance value remains infinite in the case of an open circuit. In the case of an open circuit, the interelectrode resistance value matched that in the case of a closed circuit, and a pressure detector that also behaved as a switch was obtained.

〈実験例4〉 導電性シリコーンゴム5RX−539UF(トーレシリ
コーン製)を用いて外径φ12mm、傾斜角α=15度
で凹部12cを有する接触子(第6図)を成形し、実験
例2で用いたBパターンの抵抗回路基板(第3図)との
接触加圧を行ない、肉厚dのちがいによる電極間抵抗の
圧力応答性に及ぼす影響を調べた。第8図は、dの厚さ
が■4■■、■3m層、■2層層、■1++v+の場合
に於ける加圧力と接触面積の関係を示すグラフであり、
圧力増加に伴ない接触面積が増加し、肉厚が薄くなる程
圧力に対する接触面積の増加率が高いことがわかる。
<Experimental Example 4> Using conductive silicone rubber 5RX-539UF (manufactured by Toray Silicone), a contactor (Fig. 6) having an outer diameter of 12 mm and a concave portion 12c with an inclination angle α of 15 degrees was molded. Contact pressure was applied to the B-pattern resistor circuit board (FIG. 3) used, and the influence of the difference in wall thickness d on the pressure responsiveness of the interelectrode resistance was investigated. FIG. 8 is a graph showing the relationship between pressing force and contact area when the thickness of d is ■4■■, ■3m layer, ■2 layer, and ■1++v+,
It can be seen that the contact area increases as the pressure increases, and the thinner the wall thickness, the higher the rate of increase in the contact area with respect to pressure.

第9図は、dの厚さが変ることにより電極間抵抗値の圧
力応答性の変化を表わしたグラフである。これによると
、接触子の肉厚dが圧力応答性に大きく関与し、圧力の
範囲に応じて寸法形状を変える必要があり、第8図、第
9図を対比することにより、接触子が圧力に応じて変形
し接触面積の変化となり、電極間抵抗を変化させている
事が分かる。
FIG. 9 is a graph showing changes in the pressure responsiveness of the interelectrode resistance value as the thickness of d changes. According to this, the wall thickness d of the contact has a large influence on the pressure response, and it is necessary to change the dimensions and shape depending on the pressure range. It can be seen that the contact area changes as the contact area deforms in response to the change in resistance between the electrodes.

なお、接触子12に予めスプリングを介して1Kgの荷
重を加え変形させた状態で抵抗回路基板llに接触させ
ておき、外圧力を加えると前記スプリングによる荷重が
減少するように構成した圧力検知器(図示せず)によれ
ば、外圧力が1Kg以上になると、電極間抵抗値が徐々
に増加する特性が得られた(第10図参照)。
In addition, the pressure sensor is configured such that the contactor 12 is deformed by applying a load of 1 kg via a spring and brought into contact with the resistance circuit board 11, and when external pressure is applied, the load due to the spring decreases. (not shown), a characteristic was obtained in which the inter-electrode resistance value gradually increased when the external pressure exceeded 1 kg (see Fig. 10).

〔発明の効果〕〔Effect of the invention〕

以上説明できたように、この発明によれば。 As explained above, according to this invention.

(イ)接触子が抵抗回路基板に無圧状態で接触している
ため、圧力の検出はOから可能であり、−(ロ)抵抗回
路によって初期値設定をするため、安定した圧力検出能
力がある。また、(ハ)抵抗値の変化は接触子と抵抗回
路の接触部分だけで計測され、圧力検出範囲の要求に応
じて接触子の形状と抵抗回路の形状を決めることによっ
て、圧力変化に対応して抵抗値変化を直線的にすること
が可能である。この様な改良によってこの発明は。
(a) Since the contact is in contact with the resistance circuit board in a pressure-free state, pressure detection is possible from O. - (b) Since the initial value is set by the resistance circuit, stable pressure detection ability is achieved. be. In addition, (c) changes in resistance are measured only at the contact area between the contact and the resistance circuit, and pressure changes can be responded to by determining the shape of the contact and the shape of the resistance circuit according to the pressure detection range requirements. It is possible to make the resistance value change linear. This invention is achieved by such improvements.

従来成し得なかった正確な圧力を検出することを可能に
し従来の一般的な圧力センサである金属センサや半導体
センサより安価で実用的な圧力検出器を提供できる。
It is possible to provide a pressure detector that is more cost-effective and more practical than conventional general pressure sensors such as metal sensors and semiconductor sensors, which enables accurate pressure detection that has not been possible in the past.

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

第1図はこの発明に係る一実施例の縦断側面図、第2図
、第3図、第4図はそれぞれこの発明の抵抗回路パター
ンの例を示す平面図、第5図。 第6図はそれぞれこの発明の接触子の例を示す半断面側
面図、第7図〜第10図はこの発明に係る実験データの
グラフで、第7図は抵抗回路パターン別の荷重(圧力)
/抵抗特性図、第8図は接触子肉厚(d)をパラメータ
とする荷重/接触面積特性図、第9図は同じく肉厚(d
)をパラメータとする荷重/抵抗特性図、第10図は他
の構成による荷重/抵抗特性図、第11図は従来の圧力
検知器の一例を示す平面図、第12図は第11図の双−
■断面図である。 図中、E、、E2は電極、11は抵抗回路基板、12は
(ブロック)接触子である。 第1図 第2図     第3図 第4図 第5図 第6図 第7図     第8図 第11図 第12図 手続補正書 昭和61年 2月 5日 特許庁長官  宇 賀 道 部 殿 1、事件の表示 昭和60年特許願第269544号 2、発明の名称 圧力検知器 3、補正をする者 事件との関係   特許出願人 氏 名    東京都千代田区麹町2丁目7番地名 称
     興國ゴム工業株式会社代表者   江野 友
來 4、代理人 住 所    東京都港区新橋3丁目3番14号田村町
ビルディング 5゜補正命令の日付  自   全 図」の各欄) 7、補正の内容 (1)明細書の第6頁第3行の「寸法」を「幅」に訂正
する。 (2)同書第10頁第3行のr3130IJをl’36
01Jに訂正する。 (3)同書第13頁第3行の「説明て」を「説明して」
に訂正する。 (4)図面の第8図を別紙の通り訂正する。 (5)図面の第11図を別紙の通り訂正する。
FIG. 1 is a vertical sectional side view of one embodiment of the present invention, FIGS. 2, 3, and 4 are plan views showing examples of the resistor circuit pattern of the present invention, and FIG. 5, respectively. FIG. 6 is a half-sectional side view showing an example of the contactor of the present invention, FIGS. 7 to 10 are graphs of experimental data related to the present invention, and FIG. 7 is a load (pressure) for each resistance circuit pattern.
/resistance characteristic diagram, Figure 8 is a load/contact area characteristic diagram with the contact wall thickness (d) as a parameter, and Figure 9 is a load/contact area characteristic diagram with the contact thickness (d) as a parameter.
) as a parameter, Figure 10 is a load/resistance characteristic diagram with another configuration, Figure 11 is a plan view showing an example of a conventional pressure detector, and Figure 12 is a double diagram of Figure 11. −
■It is a sectional view. In the figure, E, E2 are electrodes, 11 is a resistance circuit board, and 12 is a (block) contact. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 11 Fig. 12 Procedural amendment document February 5, 1986 Director General of the Patent Office Uga Michibe 1. Display of the case 1985 Patent Application No. 269544 2, Name of the invention Pressure detector 3, Person making the amendment Relationship to the case Patent applicant Name 2-7 Kojimachi, Chiyoda-ku, Tokyo Name Name Kokoku Rubber Industries Co., Ltd. Representative: Tomoaki Eno 4, Agent address: 5 Tamuracho Building, 3-3-14 Shinbashi, Minato-ku, Tokyo Date of amendment order (All columns of "Complete drawings") 7. Contents of the amendment (1) Details of the description Correct "dimensions" in the third line of page 6 to "width". (2) r3130IJ on page 10, line 3 of the same book as l'36
Corrected to 01J. (3) “Explain” in the third line of page 13 of the same book as “explain”
Correct to. (4) Figure 8 of the drawings will be corrected as shown in the attached sheet. (5) Figure 11 of the drawings will be corrected as shown in the attached sheet.

Claims (1)

【特許請求の範囲】[Claims]  少なくとも1対の電極を有して印刷等の手段により形
成された抵抗回路基板と、導電性弾性材からなり、前記
抵抗回路基板と常時接触を保つと共に、無加圧状態から
加圧状態に及びその接触面積が漸次変化して、電気的に
並列の可変抵抗回路を形成するブロック接触子とを備え
たことを特徴とする圧力検知器。
It consists of a resistive circuit board having at least one pair of electrodes formed by means such as printing, and a conductive elastic material, which maintains constant contact with the resistive circuit board and changes from a non-pressure state to a pressurized state. A pressure sensor comprising a block contact whose contact area gradually changes to form an electrically parallel variable resistance circuit.
JP26954485A 1985-12-02 1985-12-02 Pressure detector Pending JPS62130321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26954485A JPS62130321A (en) 1985-12-02 1985-12-02 Pressure detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26954485A JPS62130321A (en) 1985-12-02 1985-12-02 Pressure detector

Publications (1)

Publication Number Publication Date
JPS62130321A true JPS62130321A (en) 1987-06-12

Family

ID=17473854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26954485A Pending JPS62130321A (en) 1985-12-02 1985-12-02 Pressure detector

Country Status (1)

Country Link
JP (1) JPS62130321A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01224633A (en) * 1988-03-04 1989-09-07 Kokoku Rubber Kogyo Kk Pressure detector
US7040606B2 (en) 2000-11-06 2006-05-09 Nok Corporation Humidifier
JP2006177933A (en) * 2004-11-24 2006-07-06 Jtekt Corp Sensor device and rolling bearing having sensor
JP2007530157A (en) * 2004-03-26 2007-11-01 ベイポサーム,インコーポレイティド Apparatus and method for supplying water vapor to gas
JP2007289944A (en) * 2006-03-30 2007-11-08 Toray Ind Inc Membrane for humidification, and its manufacturing method
JP2010169394A (en) * 2007-05-21 2010-08-05 Panasonic Corp Humidification device and air purifier with humidification function

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151029A (en) * 1983-01-03 1984-08-29 イリノイ・ツ−ル・ワ−クス・インコ−ポレイテツド Power converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151029A (en) * 1983-01-03 1984-08-29 イリノイ・ツ−ル・ワ−クス・インコ−ポレイテツド Power converter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01224633A (en) * 1988-03-04 1989-09-07 Kokoku Rubber Kogyo Kk Pressure detector
US7040606B2 (en) 2000-11-06 2006-05-09 Nok Corporation Humidifier
JP2007530157A (en) * 2004-03-26 2007-11-01 ベイポサーム,インコーポレイティド Apparatus and method for supplying water vapor to gas
JP2006177933A (en) * 2004-11-24 2006-07-06 Jtekt Corp Sensor device and rolling bearing having sensor
JP2007289944A (en) * 2006-03-30 2007-11-08 Toray Ind Inc Membrane for humidification, and its manufacturing method
JP2010169394A (en) * 2007-05-21 2010-08-05 Panasonic Corp Humidification device and air purifier with humidification function

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