JPH033161B2 - - Google Patents
Info
- Publication number
- JPH033161B2 JPH033161B2 JP9433080A JP9433080A JPH033161B2 JP H033161 B2 JPH033161 B2 JP H033161B2 JP 9433080 A JP9433080 A JP 9433080A JP 9433080 A JP9433080 A JP 9433080A JP H033161 B2 JPH033161 B2 JP H033161B2
- Authority
- JP
- Japan
- Prior art keywords
- scale
- vernier
- main
- main scale
- attached
- 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
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/20—Slide gauges
- G01B3/205—Slide gauges provided with a counter for digital indication of the measured dimension
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
【発明の詳細な説明】
本発明は、ノギスやマイクロメータのように副
尺を用いて正確に長さを測定する測長器に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a length measuring device such as a caliper or a micrometer that accurately measures length using a vernier measure.
一般に、ノギスのような測長器は金属材によつ
て製造されるのが通例であり、これらは主尺及び
副尺のそれぞれに正確な目盛を刻線している。従
つて、煩雑な刻線作業を要するばかりでなく、主
尺と副尺の目盛線の一致を目視によつて読取る必
要があり、測定した長さをデイジタルに表示する
ことにも困難性がある。 Generally, length measuring instruments such as calipers are usually manufactured from metal materials, and have accurate scales marked on each of the main scale and vernier scale. Therefore, not only is complicated marking work required, but it is also necessary to visually read whether the scale lines of the main scale and vernier scale match, and it is also difficult to display the measured length digitally. .
叙上に鑑み、本発明は測長器における主尺及び
副尺をセラミツクスによつて構成し、主尺及び副
尺上への目盛をプリント配線等によつて直接的に
付設可能とし、この目盛を電気的に検知して簡単
にデイジタル表示できるように構成したことを特
徴とするものである。 In view of the above, the present invention constructs the main scale and vernier scale of a length measuring instrument by using ceramics, and makes it possible to directly attach scales to the main scale and vernier scale by printed wiring, etc. It is characterized by being configured so that it can be electrically detected and easily displayed digitally.
また、本発明は測長器における主尺及び副尺を
熱的膨張が少なく経年的にも安定であるなど、測
長器に有効かつ適切なセラミツクスによつて構成
し、常に高精度で安定的に測定できるようにした
ことを特徴とするものである。 In addition, the present invention constructs the main and vernier scales of the length measuring instrument using ceramics that are effective and suitable for length measuring instruments, such as having little thermal expansion and being stable over time, so that they can always be highly accurate and stable. It is characterized by being able to be measured.
図面を参照して本発明の実施例について詳述す
るに、第１図において、１はノギスの主尺、２は
副尺で、これらの本体はいずれも緻密な高純度ア
ルミナ磁器または窒化硅素、炭化硅素系等のフア
インセラミツクス材料によつて構成している。こ
のノギスは、基本的には周知のノギスと同様に、
主尺１に対して副尺２を摺動可能とし、両者の測
定縁３ａ，４ａ間、または３ｂ，４ｂ間における
長さを計測するものであるが、主尺１の断面形状
を、その強度を高めるために楕円状に形成してい
る。 An embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, 1 is the main scale of the caliper, 2 is the vernier scale, and both of these bodies are made of dense high-purity alumina porcelain or silicon nitride. It is constructed from fine ceramic materials such as silicon carbide. This caliper is basically the same as the well-known caliper,
The vernier scale 2 is made to be able to slide against the main scale 1, and the length between the two measurement edges 3a and 4a or between 3b and 4b is measured. It is formed into an oval shape to increase the
而して、上記主尺１の表面には軸線方向に溝５
を凹設し、この溝５内にセラミツクスの絶縁性を
利用してプリント配線等の手段により電気的導体
からなる主尺目盛６を付設し、また上記副尺にも
上記主尺目盛６に対向して同様な電気的導体から
なる副尺目盛７を付設している。この副尺目盛７
は、第２図に例示するように１９目盛を20等分す
るなど、周知のノギスにおける目盛と同様の目盛
間隔を有するものであるが、主尺目盛６と一致す
る目盛線を目視によつて読取るものではなく、主
尺目盛６の目盛線との接触を電気的に検知して副
尺２上のデイジタル表示部８にデイジタル表示す
るためのものである。そのため、上記デイジタル
表示部８と副尺目盛との間には、副尺目盛による
読取信号に基づいて計測長さをデイジタル表示す
るための制御装置９を介設している。 The surface of the main scale 1 is provided with grooves 5 in the axial direction.
A main scale scale 6 made of an electrical conductor is attached to the groove 5 by means such as printed wiring using the insulating properties of ceramics, and the vernier scale is also provided with a main scale scale 6 opposite to the main scale scale 6. A vernier scale 7 made of a similar electrical conductor is attached thereto. This vernier scale 7
The scale has the same scale interval as that of a well-known caliper, such as dividing 19 scales into 20 equal parts as shown in FIG. It is not for reading, but for electrically detecting contact with the scale line of the main scale scale 6 and displaying it digitally on the digital display section 8 on the vernier scale 2. Therefore, a control device 9 is provided between the digital display section 8 and the vernier scale for digitally displaying the measured length based on the read signal from the vernier scale.
即ち、第２図に示すように副尺目盛７のいずれ
かの目盛線が主尺目盛６の目盛線と接触したとき
には、その副尺目盛７の目盛線と主尺目盛６の共
通線６ａとの間に電気的な導通状態が得られるた
め、制御装置９においては両者間の電流の流れを
検出し、その副尺目盛の目盛線に対応する数値を
デイジタル表示部８の小数点以下に表示する。例
えば、第２図に示すように主尺目盛６の19mmを20
等分した副尺目盛７を備えている場合に、主尺目
盛６の目盛線６7と副尺目盛７の目盛線７4が接触
し、その間に電流が流れていることが制御装置９
において検出されたとすると、その信号に基づい
てデイジタル表示部に小数点以下の数値が２０と
表示される。 That is, as shown in FIG. 2, when any scale line of the vernier scale 7 comes into contact with the scale line of the main scale scale 6, the scale line of that vernier scale 7 and the common line 6a of the main scale scale 6 Since an electrical continuity state is obtained between the two, the control device 9 detects the flow of current between the two, and displays the numerical value corresponding to the scale line of the vernier scale below the decimal point on the digital display section 8. . For example, as shown in Figure 2, 19 mm on main scale scale 6 is 20 mm.
When equipped with an equally divided vernier scale 7, the control device 9 detects that the scale lines 67 of the main scale scale 6 and the scale lines 74 of the vernier scale 7 are in contact and current is flowing between them.
If the signal is detected at , the number below the decimal point is displayed as 20 on the digital display section based on the signal.
さらに、デイジタル表示部８における小数点以
上の数値は、主尺１に対して副尺２をスライドさ
せる間に副尺目盛７の端部の目盛線７0が主尺目
盛の各目盛線と順次一致して電流が流れる回転を
計数することによつても得ることができ、例えば
第２図の場合には副尺目盛の左端の目盛線７0が
主尺目盛の０の目盛線６0と一致した位置から図
示位置まで移動する間に、主尺目盛の目盛線６1，
６2，６3と接触するため、この３回の電気的導通
を制御装置において検出し、デイジタル表示部８
における小数点以上の数値として３を表示させ
る。また、制御装置９には目盛の検知に誤りがあ
つた場合の補正機能、副尺目盛７における隣接す
る複数の目盛線から信号が得られた場合の表示数
値の選択機能等をもたせることができる。 Furthermore, the numbers above the decimal point on the digital display section 8 can be determined by sequentially aligning the scale line 70 at the end of the vernier scale 7 with each scale line of the main scale scale while sliding the vernier scale 2 with respect to the main scale 1. It can also be obtained by counting the rotations through which the current flows. For example, in the case of Fig. 2, the leftmost scale line 70 of the vernier scale coincides with the 0 scale line 60 of the main scale scale. While moving from the position shown in the figure to the position shown, the scale line 6 1 of the main scale scale,
6 2 and 6 3 , the control device detects these three electrical connections and displays the digital display section 8.
3 is displayed as the number above the decimal point. Further, the control device 9 can be provided with a correction function in case of an error in scale detection, a function to select a display value when signals are obtained from a plurality of adjacent scale lines on the vernier scale 7, etc. .
上記実施例では、主尺目盛６を電気的導体によ
つて形成しているが、それを磁性体によつて形成
することもでき、この場合には副尺目盛７及び制
御装置９として主尺目盛６の目盛線を磁気的に検
知する手段を採用すればよい。上記磁性体からな
る主尺目盛６は、印刷によつて付設することもで
きるが、主尺１中に埋設することもでき、この場
合には、例えばセラミツクス材料中に予め磁性体
の粉体を目盛線状に埋入し、これをセラミツクス
材料と共に焼くことにより線状に溶融一体化した
目盛線とすることもできる。 In the above embodiment, the main scale graduation 6 is formed of an electrical conductor, but it can also be formed of a magnetic material. In this case, the main scale graduation 7 and the control device 9 are A means for magnetically detecting the scale lines of the scale 6 may be employed. The main scale scale 6 made of the magnetic material can be attached by printing, but it can also be embedded in the main scale 1. In this case, for example, magnetic powder is pre-filled in the ceramic material. It is also possible to form a scale line by embedding it in the form of a scale line and baking it together with a ceramic material to form a linearly fused and integrated scale line.
なお、図中１０は副尺２内に収容した制御装置
用電源としての乾電池、１１は電源スイツチその
他の操作用押釦、１２はデプスゲージを示す。ま
た、以上においては本発明をノギスに適用した場
合について説明したが、副尺を用いた他の測長
器、例えばマイクロメータ等にも適用することが
できる。 In the figure, numeral 10 indicates a dry battery as a power source for the control device housed in the vernier scale 2, numeral 11 indicates a power switch and other operating push buttons, and numeral 12 indicates a depth gauge. Moreover, although the present invention has been described above in the case where it is applied to a caliper, it can also be applied to other length measuring instruments using a vernier, such as a micrometer.
このように、本発明の測長器においては、主尺
及び副尺の本体をセラミツクスによつて構成した
ので、セラミツクスのすぐれた特性、例えば、熱
的膨張が少ない、経年的に伸縮がない、加工ひず
みによる変形がない、耐摩耗強度がすぐれている
ため摩耗によるがたが生じない、さびない、測定
物を汚さない、電気的に絶縁体である、などの特
性が測長器に有効に利用され、長期にわたつて正
確な長さ測定を行うことができ、しかもそのセラ
ミツクスの絶縁性等を利用して目盛線を簡単に付
設することができ、さらに簡単な構成によつて副
尺利用の測長器における測定値をデイジタル表示
することができる。 As described above, in the length measuring device of the present invention, the main and vernier main bodies are made of ceramics, so that the excellent properties of ceramics, such as low thermal expansion and no expansion or contraction over time, can be achieved. Characteristics such as no deformation due to processing strain, no rattling due to wear due to its excellent abrasion resistance, no rust, no contamination of the measured object, and electrical insulating properties make it effective for length measuring instruments. It is used for accurate length measurement over a long period of time, and the insulating properties of ceramics make it easy to attach scale lines, and its simple configuration makes it easy to use as a vernier. It is possible to digitally display the measured values from the length measuring device.
第１図は本発明の実施例を示す斜視図、第２図
はその要部の構成図である。
１……主尺、２……副尺、６……主尺目盛、７
……副尺目盛、８……デイジタル表示部、９……
制御装置。
FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a configuration diagram of its main parts. 1... Main scale, 2... Vernier scale, 6... Main scale scale, 7
... Vernier scale, 8 ... Digital display section, 9 ...
Control device.
Claims (1)
つて構成し、上記主尺に電気的導体または磁性体
によつて主尺目盛を付設すると共に、上記副尺
に、主尺目盛に接触または接近したことを電気的
または磁気的に検知して信号を発生する副尺目盛
を付設し、副尺上に設けたデイジタル表示部と上
記副尺目盛との間に、その副尺目盛が発生する信
号に基づいて計測長さをデイジタル表示するため
の制御装置を設けたことを特徴とする測長器。1 The main scale and the vernier main bodies are made of ceramic material, and the main scale is provided with a main scale scale using an electric conductor or a magnetic material, and the main scale is attached to the main scale by an electric conductor or a magnetic material, and a main scale scale is attached to the main scale, and a main scale scale is attached to the main scale by an electric conductor or a magnetic material. A vernier scale is attached that generates a signal by electrically or magnetically detecting that the vernier has changed, and the signal generated by the vernier scale is provided between the digital display section provided on the vernier and the above-mentioned vernier scale. 1. A length measuring device characterized by being provided with a control device for digitally displaying a measured length based on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9433080A JPS5719604A (en) | 1980-07-09 | 1980-07-09 | Length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9433080A JPS5719604A (en) | 1980-07-09 | 1980-07-09 | Length measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5719604A JPS5719604A (en) | 1982-02-01 |
| JPH033161B2 true JPH033161B2 (en) | 1991-01-17 |
Family
ID=14107263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9433080A Granted JPS5719604A (en) | 1980-07-09 | 1980-07-09 | Length measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5719604A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4550507A (en) * | 1982-12-15 | 1985-11-05 | Mitutoyo Mfg. Co., Ltd. | Thread construction in length measuring instrument and method for manufacturing thread construction |
| CN109458965A (en) * | 2018-12-19 | 2019-03-12 | 辽宁铁道职业技术学院 | Construction of Civil Engineering measuring device |
-
1980
- 1980-07-09 JP JP9433080A patent/JPS5719604A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5719604A (en) | 1982-02-01 |
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