JPS5975102A - Size measuring device - Google Patents
Size measuring deviceInfo
- Publication number
- JPS5975102A JPS5975102A JP18586582A JP18586582A JPS5975102A JP S5975102 A JPS5975102 A JP S5975102A JP 18586582 A JP18586582 A JP 18586582A JP 18586582 A JP18586582 A JP 18586582A JP S5975102 A JPS5975102 A JP S5975102A
- Authority
- JP
- Japan
- Prior art keywords
- measuring
- oscillation circuit
- signal electrode
- capacitance
- circuit
- 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
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は毛髪、細い線材、フィルム等の被検体の寸法（
太さ、厚み等）を測定する寸法測定装置に関し、特に被
検体の寸法を容易且つ正確に測定し得る寸法測定装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the size (
The present invention relates to a dimension measuring device for measuring dimensions (thickness, thickness, etc.), and particularly to a dimension measuring device that can easily and accurately measure the dimensions of a subject.
本発明はあらかじめ一定の間隔で離されている一対の電
極（例えば、シグナル電極とアース電極）を被検体の寸
法に応じてさらに離し、該一対の電極間に高周波を印加
して該一対の電極間の静電容量を測定し、該静電容量を
上記被検体の寸法を換算して寸法を求めるようにしたも
のである。In the present invention, a pair of electrodes (for example, a signal electrode and a ground electrode) that are spaced apart at a certain distance in advance are further spaced apart according to the dimensions of the subject, and a high frequency is applied between the pair of electrodes to separate the pair of electrodes. The dimensions are determined by measuring the capacitance between the two and converting the capacitance into the dimensions of the object.
上記の場合、静電容量と発振周波数との間には、回路定
数を一定とすれば一定の相関々係が成立するのでこの時
の静電容量に相当する発振周波数を測定することになる
。この発振周波数と被検体の寸法との間には、例えば、
電極面積９回路定数等の条件をすべて一定にすると、第
６図に示すような関係が成立するので測定された発振周
波数から被検体の寸法が求められる。In the above case, since a certain correlation exists between the capacitance and the oscillation frequency if the circuit constant is constant, the oscillation frequency corresponding to the capacitance at this time is measured. For example, there is a difference between this oscillation frequency and the dimensions of the object to be inspected.
If all conditions such as electrode area 9 and circuit constants are held constant, the relationship shown in FIG. 6 holds, and the dimensions of the object to be examined can be determined from the measured oscillation frequency.
一方、シグナル電極は近接する物質との間でコンデンサ
ーを形成するので上記の条件を満たすためには、検出部
のアース電極とシグナル電極との間の静電容量以外は一
定に保つ必要がある。On the other hand, since the signal electrode forms a capacitor with a nearby substance, in order to satisfy the above conditions, it is necessary to keep the capacitance constant except for the capacitance between the ground electrode of the detection part and the signal electrode.
従来シグナル電極と発振回路との距離やリード線の状態
によって測炬器個々のバラツキがでるという不都合があ
った。Conventionally, there has been an inconvenience in that the distance between the signal electrode and the oscillation circuit and the condition of the lead wires cause variations among the individual measuring instruments.
そこで本発明は、シグナル電極と電子制御回路（少なく
ともＣＲ発振回路）とを一枚の回路基板上に形成してシ
グナル電極とＣＲ発振回路との位置関係を固定し、その
回路基板を一定のシールドケース内に納めることにより
検出部以外の静電容量のバ°ラツキを最小に押え、比較
的容易に量産できるようにしたものである。Therefore, the present invention forms a signal electrode and an electronic control circuit (at least a CR oscillation circuit) on a single circuit board, fixes the positional relationship between the signal electrode and the CR oscillation circuit, and shields the circuit board to a certain degree. By housing the sensor in a case, variations in capacitance other than the detection section can be minimized, making mass production relatively easy.
又、従来測定台と測定子との間に、何もはさまない時（
０）Ｌｍの時）に一対の電極間距離が正規の状態からず
れておれば、当然、「ＯＩＬｍ」という測定結果が得ら
れないので、そのまま被検体の寸法を測定すると誤まっ
た測定結果が得られる。Also, when nothing is sandwiched between the conventional measuring table and measuring head (
0) Lm) If the distance between the pair of electrodes deviates from the normal state, the measurement result of "OILm" will naturally not be obtained, so if you directly measure the dimensions of the object, you may get an incorrect measurement result. can get.
そこで、本発明は測定台と測定子との間に何もはさまな
い時に、測定子と一体化したシャフトを適宜回転させる
ことによりアース電極が上下に移動して「０メＬｍ」の
表示が表われるように０点校正を可能としたものである
。Therefore, in the present invention, when nothing is sandwiched between the measuring table and the measuring head, by appropriately rotating the shaft integrated with the measuring head, the ground electrode moves up and down, and the display of "0 meters Lm" is made. As shown, this allows zero point calibration.
以下、本発明の寸法測定装置の一実施例を毛髪の毛径の
測定に実施した場合について図面とともに説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A case in which an embodiment of the dimension measuring device of the present invention is used to measure the diameter of a hair will be described below with reference to the drawings.
第１図は、本発明の毛髪の毛径測定装置の断面構造の概
要を示したものであり、第２図は本発明の毛髪の毛径測
定装置を前方から見た時の要部の概要を示したものであ
る。Fig. 1 shows an outline of the cross-sectional structure of the hair diameter measuring device of the present invention, and Fig. 2 shows an outline of the main parts of the hair diameter measuring device of the present invention when viewed from the front. It is something that
第３図はシグナル電極及びＣＲ発振回路を同一基板上に
形成し、上方から見た時の図である。FIG. 3 is a diagram of the signal electrode and the CR oscillation circuit formed on the same substrate, viewed from above.
図中、１はシャフトと一体化した測定子で、上下移動及
び回転できるツマミを備えている。２は測定台（測定子
１のシャフトの軸受も兼ねている。）、３は軸受、４は
圧縮ばね（測定子１のシャフトのオネジ部がアース電極
５のメネジ部に合わされた時、ゆるむのを防止するため
ある力で押しているものである。）、５はアース電極、
６は測定子１のシャフトが回転した時にアース電極５が
一所に回転しないようにする回転止〆、７はシールドケ
ース・上、８はシールドケース・下、９は回路基板、１
０はＣＲ発振回路部品の一部、１１は外箱、１２はＡＣ
電源のＯＮ１０ Ｆ Ｆ スイッチ、１３は表示部、
１４はＤＣ線・信号線、１９は被検体である。In the figure, reference numeral 1 denotes a probe integrated with the shaft, and is equipped with a knob that can move up and down and rotate. 2 is a measuring table (also serves as a bearing for the shaft of the measuring element 1), 3 is a bearing, and 4 is a compression spring (which loosens when the male threaded part of the shaft of the measuring element 1 is aligned with the female threaded part of the earth electrode 5). ), 5 is a ground electrode,
6 is a rotation stopper that prevents the ground electrode 5 from rotating in one place when the shaft of the probe 1 rotates, 7 is a shield case top, 8 is a shield case bottom, 9 is a circuit board, 1
0 is a part of the CR oscillation circuit components, 11 is the outer box, 12 is the AC
Power ON10 F F switch, 13 is the display section,
14 is a DC line/signal line, and 19 is a subject.
第３図は、回路基板９を」１方から見た図で、シグナル
電極１５、電気絶縁材（例、エポキシ樹脂ガラス布基材
）１６、アースのパターン１７、ＣＲ全発振回路パター
ン＋８（ＣＲ発振回路パターンがこの部分に位置するこ
とを示す）を示す。FIG. 3 is a view of the circuit board 9 viewed from one side, showing the signal electrode 15, electrical insulating material (e.g. epoxy resin glass cloth base material) 16, ground pattern 17, CR total oscillation circuit pattern +8 (CR (indicates that the oscillation circuit pattern is located in this part).
第４図は本発明に係る毛髪の毛径測定装置のマイクロコ
ンピュータ（マイコン）を使用した電子制御回路を示す
ブロック図であり、２７はマイコン、２０はＡＣ電源、
２１はＤＣ電源回路、２２は一対の電極部（シグナル電
極１５とアース電極５）、２３はＣＲ発振回路（シグナ
ル電極１５はＣＲ発振回路のシグナル側に接続されてお
り、アース電極５はＣＲ発振回路のアース側に接続され
ている）、２４は基準パルス発生器、２５は周波数カウ
ンタ、２６は発振回路、２８はドライバー回路、２９は
表示装置である。FIG. 4 is a block diagram showing an electronic control circuit using a microcomputer (microcomputer) of the hair diameter measuring device according to the present invention, 27 is a microcomputer, 20 is an AC power supply,
21 is a DC power supply circuit, 22 is a pair of electrode parts (signal electrode 15 and earth electrode 5), 23 is a CR oscillation circuit (signal electrode 15 is connected to the signal side of the CR oscillation circuit, and earth electrode 5 is connected to the CR oscillation circuit). 24 is a reference pulse generator, 25 is a frequency counter, 26 is an oscillation circuit, 28 is a driver circuit, and 29 is a display device.
次に本発明の毛髪の毛径測定装置の動作について説明す
る。Next, the operation of the hair diameter measuring device of the present invention will be explained.
まず、ＡＣ電源の０Ｎ１０ＦＦスイツチ１２をｒＯＮＪ
にする。次に測定台２と測定子１の間に何もはさまない
状態（校正状態・・・Ｑｌｉｍ）で測定子１のツマミを
左又は右に適宜回転させると、該測定子１のシャフトが
回転してアース電極５が上下に少しつつ移動するので、
これでシグナル電極１５とアース電極５との間隔を調整
して表示部１３の表示が１０」μｍとなるようにする。First, turn the 0N10FF switch 12 of the AC power supply to rONJ.
Make it. Next, when the knob of the gauge head 1 is rotated appropriately to the left or right with nothing sandwiched between the measuring table 2 and the gauge head 1 (calibration state...Qlim), the shaft of the gauge head 1 will rotate. As the ground electrode 5 moves up and down slightly,
The distance between the signal electrode 15 and the ground electrode 5 is now adjusted so that the display on the display section 13 is 10'' μm.
次に測定子１のツマミを持ち上げて被検体１９である１
本の毛髪を第２図の如く、測定台２と測定子１との間に
はさむ。この時の発振周波数がＭｌとしてマイコン２７
に入力されメモリされる。Next, lift the knob of probe 1 and
A piece of hair is placed between the measuring table 2 and the measuring element 1 as shown in FIG. The oscillation frequency at this time is Ml, and the microcomputer 27
is input and stored in memory.
マイコン２７では、あらかじめ定められた発振周波数と
被検体の寸法との関係（例えば第６図の例の関係）に、
今回の発振周波数Ｍ１を入れてみて該被検体の寸法Ｍ２
を求めメモリーする。その寸法がドライバー回路２８を
介して表示装置２９の表示部１３に表示される（例えば
「８０」メＬｍと表示される）。次に該被検体１９であ
る毛髪を取り除くと、測定台２と測定子１との間には何
もない状態となるので、表示部１３には「０」μｍが表
示されるはずであるが、もしずれているならば前記の如
く調整する。以下、前記と同様に操作して被検体１９で
ある毛髪の毛径を測定する。このような関係は、第５図
のフローチャートに示した。The microcomputer 27 determines the relationship between the predetermined oscillation frequency and the dimensions of the object (for example, the relationship in the example shown in FIG. 6).
Entering the current oscillation frequency M1, the size of the object M2
Find and store in memory. The dimensions are displayed on the display section 13 of the display device 29 via the driver circuit 28 (for example, "80" Lm is displayed). Next, when the hair, which is the subject 19, is removed, there will be nothing between the measuring table 2 and the measuring head 1, so "0" μm should be displayed on the display section 13. , If there is a deviation, adjust as described above. Thereafter, the diameter of the hair, which is the subject 19, is measured in the same manner as described above. Such a relationship is shown in the flowchart of FIG.
本発明の寸法測定装置は上記のような構成であるから、
毛髪、細い線材、フィルム等の寸法（太さ、厚さ等）を
容易且つ正確に測定することができ、しかもシグナル電
極を電子制御回路基板上に形成することにより生産工程
を簡略化することができ組立精度を高めることができる
。Since the dimension measuring device of the present invention has the above configuration,
The dimensions (thickness, thickness, etc.) of hair, thin wires, films, etc. can be easily and accurately measured, and the production process can be simplified by forming the signal electrode on the electronic control circuit board. It is possible to improve assembly accuracy.
＄１図は本発明の寸法測定装置の一実施例を示す皿、要
所面図、第２図は第１図を正面からみた概要正面図、第
３図はシグナル電極及びＣＲ発振回路を同一基板上に形
成した上面図、第４図は本発明の寸法測定装置の一実施
例を示す電子制御回路のブロック図、第５図は本発明の
寸法測定装置の一実施例の動作を示すフローチャート、
第６図は被検体の寸法と発振周波数の関係図である。
図面中、１は測定子、２は測定台、５はアース電□極・
９は回路基板、１０はＣＲ発振回路部品の？１、ぐ
一つ、１５はシグナル電極、１７はアースパターン、１
８はＣＲ発振回路パターン部、１９は被検体、２２は一
対の電極部、２３はＣＲ発振回路を示す。
代理人 弁理士 福 士 愛 彦（他２名）＝
７
４奇弯野−宇 法
とFigure 1 is a top view of a plate showing an embodiment of the dimension measuring device of the present invention, Figure 2 is a schematic front view of Figure 1 seen from the front, and Figure 3 shows the same signal electrode and CR oscillation circuit. FIG. 4 is a block diagram of an electronic control circuit showing an embodiment of the dimension measuring device of the present invention, and FIG. 5 is a flowchart showing the operation of an embodiment of the dimension measuring device of the present invention. ,
FIG. 6 is a diagram showing the relationship between the dimensions of the object and the oscillation frequency. In the drawing, 1 is the measuring head, 2 is the measuring table, and 5 is the ground electrode.
9 is the circuit board and 10 is the CR oscillation circuit component? 1, one piece, 15 is a signal electrode, 17 is a ground pattern, 1
8 is a CR oscillation circuit pattern section, 19 is a subject, 22 is a pair of electrode sections, and 23 is a CR oscillation circuit. Agent Patent attorney Aihiko Fukushi (and 2 others) = 7 4 Kishino-U Law and
Claims (1)
ｔを測定する静電容量測定手段と、該静電容１↑１ニア
ｌ１ｌｌ定手段の一対の電極間距離を被検体をはさむ測
定台と測定子との間隔に応じて可ゆする電極間距離可変
手段と、該静電容量測定手段により測定した静電容量を
上記被検体の寸法に換算する寸法換算手段とを具備して
なる寸法測定装置において、該一対の電極のうちシグナ
ル電極をＣＲ発振回路と同じ電子制御回路基板上に形成
したことを特徴とする寸法測定装置。1. Apply high frequency between a pair of electrodes to increase l/f and capacitance to 1f.
The distance between the electrodes of a pair of capacitance measuring means for measuring t and the capacitance 1↑1nia l1ll determining means is variable according to the distance between the measuring table and the measuring head that sandwich the subject. and dimension conversion means for converting the capacitance measured by the capacitance measurement means into the dimensions of the object, wherein the signal electrode of the pair of electrodes is connected to a CR oscillation circuit. A dimension measuring device characterized in that it is formed on the same electronic control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18586582A JPS5975102A (en) | 1982-10-21 | 1982-10-21 | Size measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18586582A JPS5975102A (en) | 1982-10-21 | 1982-10-21 | Size measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5975102A true JPS5975102A (en) | 1984-04-27 |
Family
ID=16178229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18586582A Pending JPS5975102A (en) | 1982-10-21 | 1982-10-21 | Size measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5975102A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6214306U (en) * | 1985-07-12 | 1987-01-28 | ||
| JPS6214304U (en) * | 1985-07-12 | 1987-01-28 | ||
| JPS6246306U (en) * | 1985-09-09 | 1987-03-20 |
-
1982
- 1982-10-21 JP JP18586582A patent/JPS5975102A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6214306U (en) * | 1985-07-12 | 1987-01-28 | ||
| JPS6214304U (en) * | 1985-07-12 | 1987-01-28 | ||
| JPH0522804Y2 (en) * | 1985-07-12 | 1993-06-11 | ||
| JPH0522803Y2 (en) * | 1985-07-12 | 1993-06-11 | ||
| JPS6246306U (en) * | 1985-09-09 | 1987-03-20 | ||
| JPH0522805Y2 (en) * | 1985-09-09 | 1993-06-11 |
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