JPS632121B2 - - Google Patents
Info
- Publication number
- JPS632121B2 JPS632121B2 JP56045720A JP4572081A JPS632121B2 JP S632121 B2 JPS632121 B2 JP S632121B2 JP 56045720 A JP56045720 A JP 56045720A JP 4572081 A JP4572081 A JP 4572081A JP S632121 B2 JPS632121 B2 JP S632121B2
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- resistance value
- electrodes
- trimming
- slider
- 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
Links
- 238000009966 trimming Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Description
【発明の詳細な説明】
本発明は所望の抵抗値変化特性が容易に得られ
る可変抵抗用の抵抗体に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistor for variable resistance that can easily obtain desired resistance value change characteristics.
被測定対象の変化量を検出するセンサのうち、
従来から広く用いられているものに可変抵抗があ
り、これは被測定対象が例えば液体であつた場
合、液体の液量変化にもとずく液面変位に対応し
て可変抵抗の摺動子を移動させて抵抗値を変え、
液量変化を抵抗値変化に置換するものである。こ
のため、この種のセンサの検出精度は、摺動子移
動量に対する抵抗値変化特性によつて支配され
る。 Among the sensors that detect the amount of change in the measured object,
Variable resistors are widely used in the past, and when the object to be measured is, for example, a liquid, a slider of the variable resistor is used to respond to the displacement of the liquid level due to changes in the amount of liquid. Move it to change the resistance value,
This replaces changes in liquid volume with changes in resistance value. Therefore, the detection accuracy of this type of sensor is governed by the resistance value change characteristic with respect to the amount of slider movement.
しかし、液体が複雑な形状の容器、例えば自動
二輪車の燃料タンクのようなものに入れられてい
る場合、液面変位量と液量変化量は同率の変化を
しないことが多い。このため、可変抵抗は摺動子
移動量によつて決まる抵抗値が液量と同率の変化
を示すように形成されている。 However, when liquid is contained in a container with a complicated shape, such as a fuel tank of a motorcycle, the amount of liquid level displacement and the amount of change in liquid amount often do not change at the same rate. For this reason, the variable resistor is formed so that the resistance value determined by the slider movement amount changes at the same rate as the liquid amount.
第１図はこの考えにもとずいて形成された従来
から用いられている抵抗体の一例を示す平面図で
ある。同図において、抵抗体１の複数の任意個所
から、例えば９本の電極２1〜２9を引出し、その
隣接する電極間にはそれぞれ抵抗３1〜３8を形成
し、この抵抗３1〜３8をトリミングする。 FIG. 1 is a plan view showing an example of a conventionally used resistor formed based on this idea. In the figure, for example, nine electrodes 2 1 to 2 9 are drawn out from a plurality of arbitrary locations on a resistor 1, and resistors 3 1 to 3 8 are formed between adjacent electrodes, respectively. 3 Trim 8 .
このような構成にした時の抵抗値変化特性を示
したものが第２図であつて、同図において横軸ｘ
（θ）は摺動子移動量、縦軸Ｒはｘ（θ）に対する
抵抗値、Ａはトリミング前の抵抗値変化特性、実
線Ｂはトリミング後の抵抗値変化特性、点線Ｃは
所望の抵抗値変化特性を示している。この構成に
よれば、第２図に示すように所望の抵抗値変化に
かなり近づけることができる。 Figure 2 shows the resistance value change characteristics when such a configuration is used. In the figure, the horizontal axis x
(θ) is the amount of slider movement, the vertical axis R is the resistance value with respect to x(θ), A is the resistance value change characteristic before trimming, the solid line B is the resistance value change characteristic after trimming, and the dotted line C is the desired resistance value. It shows change characteristics. According to this configuration, as shown in FIG. 2, the desired resistance value change can be achieved considerably.
しかしながら、この方法は、合成抵抗の変化率
を大きくして調整を容易にするため抵抗体１のう
ち隣接する電極によつて挾まれた部分の抵抗値よ
りも、トリミング用抵抗３1〜３8の抵抗値の方を
小さくしている。このためにはトリミング用抵抗
３1〜３8と抵抗体１とは異なつた組成の素材を使
用して形成することになり、素材の種類が多くな
る。また、隣接する電極で挾まれた部分の合成抵
抗は所望特性に近づけることができるが、この部
分における抵抗体１の抵抗値はトリミング用抵抗
３1〜３8の抵抗値よりも大きいため、電極２1〜
２9から外れた部分における可変抵抗の示す抵抗
値は第３図のように所望特性から外れたものとな
つてしまう。第３図において、横軸ｘ（θ）は摺
動子移動量を示し縦軸Ｒは可変抵抗の抵抗値を示
しており、一例として電極２3と２4の間の実際の
変化特性を実線によつて、所望の変化特性を点線
によつて示している。 However, in this method, in order to increase the rate of change of the combined resistance and facilitate adjustment, the trimming resistors 3 1 to 3 8 are set higher than the resistance value of the portion of the resistor 1 sandwiched between adjacent electrodes. The resistance value of is made smaller. For this purpose, the trimming resistors 3 1 to 3 8 and the resistor 1 must be formed using materials with different compositions, which increases the number of types of materials. Furthermore, the combined resistance of the portion sandwiched between adjacent electrodes can be brought close to the desired characteristics, but since the resistance value of the resistor 1 in this portion is greater than the resistance value of the trimming resistors 3 1 to 3 8 , the electrode 2 1 ~
The resistance value shown by the variable resistor in a portion that deviates from 29 will deviate from the desired characteristics as shown in FIG. In Fig. 3, the horizontal axis x (θ) represents the amount of slider movement, and the vertical axis R represents the resistance value of the variable resistor . The desired change characteristics are indicated by dotted lines.
したがつて本発明の目的は、外付けのトリミン
グ抵抗を用いることなく所望の抵抗値変化特性を
有する可変抵抗用抵抗体を提供するにある。 Therefore, an object of the present invention is to provide a resistor for a variable resistance that has desired resistance value change characteristics without using an external trimming resistor.
このような目的を達成するために、本発明に係
る抵抗体は抵抗体表面の摺動子摺動範囲外であつ
て、抵抗体の摺動子摺動方向に複数の電極を配設
し、隣接する電極間部分の抵抗体をトリミングす
るものである。以下本発明を図面を用いて詳細に
説明する。 In order to achieve such an object, the resistor according to the present invention has a plurality of electrodes arranged outside the slider sliding range on the resistor surface and in the slider sliding direction of the resistor, This is to trim the resistor between adjacent electrodes. The present invention will be explained in detail below using the drawings.
第４図は本発明の一実施例を示す平面図であ
る。同図において、抵抗体１の表面には斜線部で
示す摺動子摺動範囲１ａに入り込まず、その近く
で摺動子摺動方向に任意の間隔を保つて任意数量
だけ電極２1〜２oを配設する。この場合、電極２
１〜２oの抵抗値は抵抗体１のうち隣接する電極に
よつて挾まれる部分の抵抗値に比べると無視でき
る値とする。 FIG. 4 is a plan view showing an embodiment of the present invention. In the same figure, an arbitrary number of electrodes 2 1 to 2 are placed on the surface of the resistor 1 at an arbitrary interval in the sliding direction of the slider without entering the slider sliding range 1a shown by the shaded area. Place o . In this case, electrode 2
The resistance value of 1 to 2 o is a value that can be ignored compared to the resistance value of the portion of the resistor 1 sandwiched between adjacent electrodes.
このように構成した本発明に係る抵抗体におい
て、先ず電極２1と電極２2とによつて挾まれてい
る部分の抵抗体１を矢印方向にトリミングを行な
うことによつて、電極２1と電極２2間の抵抗値が
所望値となるように調整する。次に、電極２2と
電極２3、電極２3と電極２4のように順次隣接す
る電極間のトリミングを行つていく。これによ
り、抵抗体全域にわたつて所望特性を得ることが
できる。 In the resistor according to the present invention configured as described above, first, by trimming the portion of the resistor 1 sandwiched between the electrode 2 1 and the electrode 2 2 in the direction of the arrow, the electrode 2 1 and the electrode 2 2 are removed. The resistance value between the electrodes 2 2 is adjusted to a desired value. Next, trimming is performed between adjacent electrodes in sequence, such as between electrode 2 2 and electrode 2 3 , and between electrode 2 3 and electrode 2 4 . Thereby, desired characteristics can be obtained over the entire resistor.
このように、本発明による方法によれば、トリ
ミング用抵抗を別に形成する必要がないので一種
類の抵抗だけを形成すれば良く、抵抗素材の種類
が少なくてすむ。また従来のように電極間の抵抗
値だけでなく、抵抗体１の全域にわたつてトリミ
ングがなされているので、抵抗値変化特性を所望
の特性とすることができる。 As described above, according to the method of the present invention, there is no need to separately form a trimming resistor, so only one type of resistor needs to be formed, and the number of types of resistor materials can be reduced. Further, since trimming is performed not only on the resistance value between the electrodes as in the conventional case but also over the entire area of the resistor 1, the resistance value change characteristic can be made into a desired characteristic.
第５図は本発明の第２の実施例を示す平面図で
あり、第４図と同一部分または相当部分は同記号
を用いている。同図において、４は電極２2〜２(o
−１）から外周方向に穿設された溝であつて、この
ように低抗体１の周辺部を溝４によつて分離する
ことによつて、トリミングを行なう部分がその隣
接する部分に与える影響を少なくすることができ
る。 FIG. 5 is a plan view showing a second embodiment of the present invention, and the same symbols are used for the same or equivalent parts as in FIG. 4. In the same figure, 4 indicates electrodes 2 2 to 2 (o
-1) is a groove bored in the outer circumferential direction, and by separating the peripheral part of the low antibody 1 by the groove 4, the effect that the part to be trimmed has on the adjacent part can be reduced.
この場合、溝部４には電流が流れないので、抵
抗１の内部の電流密度は第６図のようになる。こ
のためトリミングを行なう場所によつてトリミン
グ結果が異なり調整がやや難かしくなる。 In this case, since no current flows through the groove 4, the current density inside the resistor 1 becomes as shown in FIG. For this reason, the trimming results vary depending on the location where trimming is performed, making adjustment somewhat difficult.
第７図は本発明の第３の実施例を示す平面図で
あつて、第４図と同一部分および相相当部分は同
記号を用いている。同図において、電極２1と２o
は外周部まで達し、また電極２2〜２(o-1)は外周
部まで達する導体部５2〜５(o-1)を有している。
このため前記第５図では溝部によつて遮断されて
いた電流が遮断されず第８図に示すように電流分
布が一様になるため調整が容易となる。 FIG. 7 is a plan view showing a third embodiment of the present invention, in which the same symbols and corresponding parts as in FIG. 4 are used. In the figure, electrodes 2 1 and 2 o
reaches the outer periphery, and the electrodes 2 2 -2 (o-1) have conductor parts 5 2 -5 (o-1) that reach the outer periphery.
Therefore, the current that was blocked by the groove in FIG. 5 is not blocked, and the current distribution becomes uniform as shown in FIG. 8, making adjustment easier.
一方、摺動子移動量に対する抵抗値変化特性を
大幅に変化させる方法として、第９図に示すよう
に抵抗体の幅を大きく変化することが考えられ
る。しかし、この方法によると抵抗体の幅が最小
と最大の部分の比が３倍程度までは問題がない
が、10倍近くなると抵抗体の面積がアンバランス
になり過ぎるため、形状が大きく、抵抗材料も多
く必要になつてしまう。この欠点を除去したもの
が第１０図に平面図を示す本発明の第４の実施例
であり、第７図と同一部分および相当部分は同記
号を用いている。同図において電極２2〜２(o-1)
のうち外周部に伸びている導体部５2〜５(o-1)は
その間隔を変えて配設されている。 On the other hand, as a method of significantly changing the resistance value change characteristic with respect to the amount of slider movement, it is conceivable to greatly change the width of the resistor as shown in FIG. However, with this method, there is no problem until the ratio of the minimum and maximum width of the resistor is about 3 times, but when it approaches 10 times, the area of the resistor becomes too unbalanced, resulting in a large shape and resistance. It also requires a lot of materials. This defect has been eliminated in the fourth embodiment of the present invention whose plan view is shown in FIG. 10, in which the same symbols and corresponding parts as in FIG. 7 are used. In the figure, electrodes 2 2 to 2 (o-1)
Of these, the conductor portions 5 2 to 5 (o-1) extending toward the outer periphery are arranged at different intervals.
このように導体部５2〜５(o-1)の間隔を選定す
ることによつて摺動子移動量に対する抵抗値変化
特性を任意に設定することができるので、摺動子
移動量に対して大幅な抵抗値変化特性を示す抵抗
体を小さな形状に形成することができる。 In this way, by selecting the spacing between the conductor parts 5 2 to 5 (o-1), the resistance value change characteristic with respect to the amount of slider movement can be set arbitrarily. Therefore, it is possible to form a resistor exhibiting a large resistance value change characteristic in a small shape.
なお、以上の実施例は溝４および導体部５2〜
５oを回転中心から放射状に考えたが、第１１図
に示すように平行としても良い。 In addition, in the above embodiment, the groove 4 and the conductor portions 5 2 to
5 o is considered radial from the center of rotation, but it may also be parallel as shown in Figure 11.
以上説明したように、本発明に係る可変抵抗用
抵抗体は抵抗体表面の摺動子摺動範囲外であつ
て、摺動子摺動方向に複数の電極を配設し、隣接
する電極に挾まれた部分の抵抗体をトリミングす
るものであるから、トリミング抵抗を別に必要と
することなく、所望特性に近い抵抗値変化特性が
得られる優れた効果を有する。 As explained above, the variable resistance resistor according to the present invention has a plurality of electrodes arranged in the sliding direction of the slider outside the slider sliding range on the surface of the resistor, and adjacent electrodes. Since the resistor in the sandwiched portion is trimmed, there is no need for a separate trimming resistor, and it has an excellent effect of obtaining resistance value change characteristics close to desired characteristics.
第１図は従来から用いられている可変抵抗用抵
抗体の一例を示す平面図、第２図は第１図の抵抗
体の摺動子移動量ｘ（θ）に対する抵抗値Ｒの変
化特性図、第３３図は第２図の変化特性図を電極
２3と２4の部分について拡大した抵抗値変化特性
図、第４図は本発明に係る可変抵抗体の一実施例
を示す平面図、第５図〜第１１図は他の実施例を
示す平面図、そのうち第６図は第５図の部分拡大
図、第８図は第７図の部分拡大図である。
１…抵抗体、１ａ…摺動範囲、２1〜２o…電
極、４…溝、５2〜５(o-1)…導体部。
Fig. 1 is a plan view showing an example of a conventional variable resistance resistor, and Fig. 2 is a characteristic diagram of the change in resistance value R with respect to the slider movement x (θ) of the resistor shown in Fig. 1. , FIG. 33 is a resistance value change characteristic diagram in which the change characteristic diagram in FIG. 2 is enlarged for the electrodes 2 3 and 2 4 , FIG. 5 to 11 are plan views showing other embodiments, of which FIG. 6 is a partially enlarged view of FIG. 5, and FIG. 8 is a partially enlarged view of FIG. 7. DESCRIPTION OF SYMBOLS 1...Resistor, 1a...Sliding range, 21-2o ...Electrode, 4...Groove, 52-5 (o-1) ...Conductor part .
Claims (1)
抵抗体において、前記抵抗体表面の摺動子摺動範
囲外であつて該抵抗体の摺動子摺動方向に複数の
電極を配設し、隣接する電極間部分の抵抗体をト
リミングしたことを特徴とする可変抵抗用抵抗
体。1. In a variable resistance resistor in which a slider slides on the surface of the resistor, a plurality of electrodes are provided in the slider sliding direction of the resistor outside the slider sliding range on the resistor surface. A resistor for variable resistance, characterized in that the resistor is arranged between adjacent electrodes and trimmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56045720A JPS57160102A (en) | 1981-03-28 | 1981-03-28 | Resistor for variable resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56045720A JPS57160102A (en) | 1981-03-28 | 1981-03-28 | Resistor for variable resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57160102A JPS57160102A (en) | 1982-10-02 |
| JPS632121B2 true JPS632121B2 (en) | 1988-01-18 |
Family
ID=12727178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56045720A Granted JPS57160102A (en) | 1981-03-28 | 1981-03-28 | Resistor for variable resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57160102A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6162749A (en) * | 1984-09-01 | 1986-03-31 | Nippon Denso Co Ltd | Actuator control device in automobile air conditioner |
| JP2542801Y2 (en) * | 1989-10-26 | 1997-07-30 | ローム 株式会社 | Chip variable resistor |
| JPH08228543A (en) * | 1996-04-01 | 1996-09-10 | Iseki & Co Ltd | Transplanter with fertilizer application |
-
1981
- 1981-03-28 JP JP56045720A patent/JPS57160102A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57160102A (en) | 1982-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4418372A (en) | Magnetic rotary encoder | |
| DE2751196C2 (en) | Device for air volume measurement | |
| CN1027607C (en) | High sensitivity semiconductor gas sensor | |
| US5363084A (en) | Film resistors having trimmable electrodes | |
| JPS57103366A (en) | Variable-capacitance device | |
| US5812047A (en) | Offset-free resistor geometry for use in piezo-resistive pressure sensor | |
| US2873336A (en) | Continuous variation potentiometer | |
| US3946494A (en) | Toroidal electrolytic angle transducer | |
| DE3740800C2 (en) | ||
| DE69027851T2 (en) | ELECTRONIC CONDENSER LEVEL WITH AUTOMATIC ELECTRODE SELECTION | |
| GB2188427A (en) | Inclination sensor | |
| US4242660A (en) | Thick film resistors | |
| JPH03506072A (en) | Measuring device for contactless detection of distance and/or angular changes | |
| JPS6022738B2 (en) | position detection device | |
| EP0477312A1 (en) | Process and device for measuring air flow. | |
| DE19702519A1 (en) | Magnetostriction type torque determination system with cylindrical housing esp. for vehicles | |
| DE3325148C2 (en) | ||
| JPH0749924B2 (en) | Multiple output electrode type image position detector | |
| EP0191899B1 (en) | Sensor for measuring electrical properties in an electric field | |
| DE645025C (en) | Monitoring device for those hot water storage tanks that contain varying amounts of hot and cold water | |
| JPS61110045A (en) | Thick film type sensor | |
| JPS5965402A (en) | Thick film resistance | |
| US2935715A (en) | Adjustable electrical resistors | |
| JPH0467795B2 (en) | ||
| JP2503798Y2 (en) | Variable resistor |