JPS61260121A - Device for inspecting indication of measuring instrument - Google Patents
Device for inspecting indication of measuring instrumentInfo
- Publication number
- JPS61260121A JPS61260121A JP10329785A JP10329785A JPS61260121A JP S61260121 A JPS61260121 A JP S61260121A JP 10329785 A JP10329785 A JP 10329785A JP 10329785 A JP10329785 A JP 10329785A JP S61260121 A JPS61260121 A JP S61260121A
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- Japan
- Prior art keywords
- measuring instrument
- pointer
- scale
- main body
- test signal
- Prior art date
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Links
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- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
Description
【発明の詳細な説明】
A、産業上の利用分野
この発明はアナログ計測器における目盛と指針との指示
精度の検査を自動化した計測器の指示検査装置に関する
。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a measuring instrument indicator inspection device that automates the inspection of the indicating accuracy of a scale and pointer in an analog measuring instrument.
B6発明の概要
この発明は電流計や電圧計等のアナログ式計測器におけ
る目盛と指針との指示精度の検査を自動的に行うように
した計測器指示検査装置において、テレビカメラを用い
て計測器本体の指針の動きt−観測するとともに計測器
本体が載置され念xY移動機WをCPUの出力によ)制
御し、計測器本体の各目盛パターンの中心位置を計測し
、これら目盛位置から指針の回転中心を算出して、目盛
位置と1iUN針の位置とが所定の範囲内に入っている
か否をO:PUICより判定したことにより。B6 Summary of the Invention This invention is a measuring instrument indicating and inspecting device that automatically tests the accuracy of indication between a scale and a pointer in an analog measuring instrument such as an ammeter or a voltmeter. While observing the movement of the pointer on the main body, the xY moving device W is controlled (by the output of the CPU) when the main body of the measuring instrument is placed, and the center position of each scale pattern on the main body of the measuring instrument is measured, and from these scale positions By calculating the center of rotation of the pointer and determining from O:PUIC whether the scale position and the position of the 1iUN hand are within a predetermined range.
アナログ計測器における指針・と目盛との指示精度の検
査が自動的かつ迅速にできるとともに検査品質の均一化
を図るようにし九ことにある。The purpose of the present invention is to automatically and quickly test the accuracy of indications between the pointer and the scale in analog measuring instruments, and to ensure uniformity of test quality.
C0従来の技術
IE流計や電圧計等のアナログ指示回転計測器(以下メ
ータと称す)におけるメータ指示検査は従来、検査員が
目視によシメータパネルの目盛と指針の指示が所定の規
格の範囲に入っているかの検査を行う手段と、第7図に
示すように自動検査装置と用いて行う手段があった。第
7図は後者の装置の概略構成図であシ、図において、7
/はメータパネルである。メータパネル7/の表面部に
は符号「/」〜「rJVc相幽する部位に目盛パターン
7ユa〜7コ1が印刷等の手段によシ形成されている。C0 Conventional Technology IE Inspection of analog indication rotation measuring instruments (hereinafter referred to as meters) such as current meters and voltmeters has traditionally been carried out by inspectors who visually check whether the scale on the meter panel and the indications on the pointer are in accordance with a predetermined standard. There is a means to check whether it is within the range, and a means to use an automatic test device as shown in FIG. FIG. 7 is a schematic configuration diagram of the latter device.
/ is the meter panel. On the surface of the meter panel 7/, scale patterns 7a to 71 are formed by means of printing or the like in areas where the symbols "/" to "rJVc" overlap.
これら目盛パターン7ユa〜7コ1の中心位置に相当す
る部位に目盛パターン7コa〜7コ1が印刷等の手段に
より形成されている。これら目盛パターン7コa〜7コ
1の中心位置に相当する近傍には光ファイバ7J a〜
731の一端が穿設され、その他端は近接センナユニッ
ト7≠に導びかnている。この光ファイバ73a〜73
1と近接センナユニット7弘とで近接スイッチが構成さ
れている。すなわち指針76が近接スイッチを動作させ
ることによシ目盛と指針との精度を検査するものである
o7jは試験信号発生装置で、この装置7jからのテス
トパターンをメータに供給して指針7tと目盛パターン
7コ!L〜7コ1との指示精度が所定の規格の範囲内に
入っているか、否かを試験するものである。Scale patterns 7a to 71 are formed by means such as printing at positions corresponding to the center positions of these scale patterns 7a to 71. Optical fibers 7J a~
One end of 731 is drilled, and the other end leads to the proximity sensor unit 7≠. These optical fibers 73a to 73
1 and a proximity sensor unit 7 constitute a proximity switch. That is, the pointer 76 inspects the accuracy of the scale and the pointer by operating a proximity switch.O7j is a test signal generator, which supplies the test pattern from this device 7j to the meter to check the accuracy of the pointer 7t and the scale. 7 patterns! This is to test whether the indication accuracy of L to 7/1 is within the range of a predetermined standard.
D0発明が解決しようとする問題点
上記2つの試験手段において、前記の目視検査手段では
指示精度検査が検査員の疲労や個人差にあるとともに長
時間の連続検査作業もできない問題点がある。D0 Problems to be Solved by the Invention Among the above two testing means, the visual inspection means has the problem that the indication accuracy test is subject to inspector fatigue and individual differences, and it is not possible to carry out continuous inspection work over a long period of time.
ま九、後者の自動検査装置ではメータの取付位置精度を
維持するのが困難であるとともに目盛の印刷精度が十分
確保できない場合には検査内容自体く信頼性がなくなる
問題点があった。Nineteenth, with the latter automatic inspection device, it is difficult to maintain the accuracy of the meter mounting position, and if the printing accuracy of the scale cannot be ensured sufficiently, there is a problem that the inspection content itself becomes unreliable.
上記試験手段の他にテレビカメラ1台を用いてメータ全
体を写して自動検査を行うことも考えられるけれども、
テレビカメラの解儂度が256X258あるいは512
X512画素前後しかないなめ、±02度の精度でメー
タの指針の位置を正確に計測することができない問題点
があるO
E0問題点を解決するための手段
この発明は次のように構成される。すなわち。In addition to the above testing methods, it is also possible to use a single TV camera to photograph the entire meter and perform automatic inspection.
The resolution of the TV camera is 256X258 or 512
Means for solving the O E0 problem in which there is a problem in which the position of the meter pointer cannot be accurately measured with an accuracy of ±02 degrees because there are only around 512 pixels This invention is constructed as follows. . Namely.
この発明は前記計測器本体の上方部に配設され、指針の
動きt−観測するテレビカメラと、前記計測器本体の下
部に配設され、カメラの観測視野を拡大させるための移
動機構と、この移動機Wを制御する位置決めサーボ装置
と、前記カメラのビデオ信号出力が入力され、入力され
九信号を二値画像処理、寸法計測処理及び角度計測処理
する画像処理装置と、この画像処理装置に検査箇所を設
定する検査箇所設定手段と、前記計測器本体に供給され
、その計測器の指針に試験信号を与える試験信号発生装
置と、この試験信号発生装置、画像処理装置及び位置決
めサーボ装置の間で信号の授受を行い、それら装置を制
御させるとともに検査合否の判定を行う○PUとからな
るものである。The present invention includes: a television camera disposed in the upper part of the measuring instrument body to observe the movement of the pointer; a moving mechanism disposed in the lower part of the measuring instrument body for expanding the observation field of the camera; A positioning servo device that controls this mobile device W, an image processing device that receives the video signal output of the camera and processes the input nine signals for binary image processing, dimension measurement processing, and angle measurement processing, and this image processing device. between an inspection point setting means for setting an inspection point, a test signal generating device supplied to the measuring instrument body and giving a test signal to the pointer of the measuring instrument, and the test signal generating device, the image processing device, and the positioning servo device; It consists of a PU that sends and receives signals, controls these devices, and determines whether the test passes or fails.
20作 用
移動機Wを制御して計測器本体の各目盛パターンの中心
位置を計測するとともに、これら目盛位置力為ら指針の
回転中心を算出する。その後、計測器本体く試験信号発
生装置から試験信号を印加して計測器本体の目盛位置と
指針の指示位置とが所定の規格の範囲内に入っているか
否か判定する。20 Operation The mobile unit W is controlled to measure the center position of each scale pattern on the main body of the measuring instrument, and the rotation center of the pointer is calculated from these scale position forces. Thereafter, a test signal is applied from a test signal generator to the measuring instrument body to determine whether the scale position of the measuring instrument body and the indicated position of the pointer are within a predetermined standard range.
G、実施例
第1図はこの発明の一実施例を示すブロック図で、この
fa1図において、/は電流計や電圧計等の計測器本体
で、この計測器本体/はXY移移動機ココ載置されて横
方向体)、縦方向(Y)に移動されるようになっている
03は計測器本体lの上方に配設されたビデオカメラで
、このビデオカメラ3のビデオ出力信号は画像処理袋f
Rpに入力され、この画像処理装置μによりビデオ出力
信号は二値化処理1寸法検査、目盛中心位置の計測等の
処理が行われ図示しないディスブレス装置に映出される
。!は検査箇所設定手段で、この設定手段夕は画像処理
袋Rμに対しておおま→λな検査箇所を指定するもので
ある。tは計測器本体lの指針(図示省略)を駆動させ
る試験信号発生装置、7は!YY動機構2を制御させる
XYY置決めサーボ装置で、これら両装置4,7及び画
像処理装置弘はopryrに接続されてoP’arrt
cよシ検査全体のシーケンス制御や検査の合否判定等が
行われる。G. Embodiment Figure 1 is a block diagram showing an embodiment of the present invention. In this fa1 diagram, / is the main body of a measuring instrument such as an ammeter or voltmeter, and / is the main body of the measuring instrument such as an XY moving machine. Reference numeral 03 is a video camera placed above the measuring instrument main body l, and the video camera 3 is moved in the horizontal (horizontal) and vertical (Y) directions. processing bag f
The video output signal is inputted to Rp, and the video output signal is subjected to processing such as binarization, one-dimensional inspection, and measurement of the center position of the scale by the image processing device μ, and then displayed on a diskless device (not shown). ! is an inspection point setting means, and this setting means specifies an inspection point roughly →λ with respect to the image processing bag Rμ. t is a test signal generator that drives the pointer (not shown) of the measuring instrument main body l, and 7 is! An XYY positioning servo device that controls the YY movement mechanism 2, and these devices 4 and 7 and the image processing device Hiroshi are connected to the opryr and oP'arrt.
Sequence control of the entire inspection and pass/fail determination of the inspection are performed.
りはタイマである。is a timer.
次に上記実施例により指針と目盛との指示精度の検査の
作用について述べる。Next, the operation of inspecting the pointing accuracy of the pointer and scale will be described using the above embodiment.
〔1〕 まず各目盛の中心位置の計測を行うKは次のよ
うKする。[1] First, K for measuring the center position of each scale is determined as follows.
計測器本体/ t−XY移移動機ココセットし、そのX
YY動機構−21に:XY位置決めサーボ装置7によシ
制御させておおまかな位置決めを行う。例えばXYテー
ブル±10μ鵠、カメ21画素士μ惰とする。Measuring instrument body / t-XY transfer machine set here, its
The YY movement mechanism 21: Rough positioning is performed by controlling the XY positioning servo device 7. For example, assume that the XY table is ±10μ and the camera is 21 pixels.
位置決めが行われたなら、第2図に示すように計測器本
体/のパネル表面に設けらnている目盛「1」のパター
ン7コb6ビデオカメラ3で撮影し、そのビデオ信号を
画像処理装置弘に入力させる。Once the positioning has been performed, as shown in Figure 2, the 7 patterns of scale "1" provided on the panel surface of the measuring instrument body are photographed by the video camera 3, and the video signals are sent to the image processing device. Have Hiro input.
画像処理装置弘では前記ビデオ信号に検査パターンL!
及び1mが第2図に示すような配置となるように処理し
てディスプレイ装置に映出させるとともに0PUr等に
あるメモリにこれらを記憶させる。その後、検査パター
ン21及びi雪に沿ってメモリ(図示省略)t−OPt
rrにより走査し。In the image processing device Hiro, a test pattern L! is applied to the video signal.
and 1m are processed so that they are arranged as shown in FIG. 2, and are displayed on a display device and stored in a memory in 0PUr or the like. After that, along the inspection pattern 21 and i snow, the memory (not shown) t-OPt
Scan by rr.
目盛「1」のパターン7ユbとの交点P t + P
* 及びPsePnt−求める。Intersection point of scale “1” with pattern 7 u b P t + P
* and PsePnt-determine.
次に交点P1ePlの中心?、及び交点P3+P4の中
点アロを求め、中点P8ePgの中点P10t?目盛「
1」の中心座標とする。また、交点P 1 m P m
あるいはPleP4からX軸に対する傾きθを求め、中
点PLOから検査パターンJ!3を走査して目盛「1」
の外周点P I A’i求める。Next, the center of the intersection P1ePl? , and find the midpoint Aro of the intersection P3+P4, and find the midpoint P10t of the midpoint P8ePg? scale"
1” as the center coordinates. Also, the intersection P 1 m P m
Alternatively, find the slope θ with respect to the X axis from PleP4, and check the inspection pattern J! from the midpoint PLO! Scan 3 and mark “1”
Find the outer peripheral point P I A'i.
このように求めた中点PIO,外周点外周点全1ムリに
記憶させておく。The midpoint PIO and the outer circumferential point obtained in this manner are stored in one memory.
以下同様に各目盛rOJ〜「8」の目盛パターン7コa
〜7コ1の中心座標ア00〜ア80を求めるとともに、
外周点POム〜P8At−求める。Similarly, each scale rOJ ~ "8" scale pattern 7 pieces a
~ Find the center coordinates A00 to A80 of 7co1, and
Determine the outer circumferential point POm~P8At-.
〔2〕 次に指針の回転中心を目盛パターンの外周点ア
1ム〜P8ムから算出する。[2] Next, the center of rotation of the pointer is calculated from the outer peripheral points A1am to P8m of the scale pattern.
第8図ムは円形目盛パターンの場合、第8図Bは長方形
状に目盛パターンが印刷されている場合の適用例で、ま
ず第8図ムについて述べる。第8図ムにおいて、例えば
外周点PIA、:P4ム。8(a) and 8(b) show an application example in which a circular scale pattern is printed, and FIG. 8(B) is an application example in which a rectangular scale pattern is printed. First, FIG. 8(b) will be described. In Fig. 8, for example, the outer peripheral point PIA, :P4.
P8ムの8点のXY座標から回転中心I’IOは円の中
心を求めるアルゴリズムによシ算出する。また、第8図
Bの場合には外周点PIムとl’gAのI座標の中点か
ら指針の回転中心のX座標上京め。The center of rotation I'IO is calculated from the XY coordinates of the eight points on the P8 frame using an algorithm that finds the center of a circle. In the case of Fig. 8B, the X coordinate of the center of rotation of the pointer moves from the midpoint of the I coordinate of the outer peripheral point PI and l'gA.
外周点F4AとP8AのY座標を適当な比で内分するこ
とによシ1回転中心のY座標を求めて、指針の回転中心
を算出する。このように算出、した値0PUr内のメモ
リに記憶させておき次の処理を行う。By internally dividing the Y coordinates of the outer peripheral points F4A and P8A by an appropriate ratio, the Y coordinate of the center of one rotation is determined, and the center of rotation of the pointer is calculated. The thus calculated value is stored in the memory in 0PUr and the next processing is performed.
〔3〕 計測器本体lに試験信号発生装置1jから試験
信号を供給させて、目盛「0」〜「8」に対する指針の
指示位置を計測する。[3] The test signal is supplied from the test signal generator 1j to the measuring instrument main body 1, and the indicated position of the pointer with respect to the scale "0" to "8" is measured.
この指示位置の計測は第4図に示すように指針仰の中心
を次のような手段によって行う。この手段を行うには
指針弘/に対して予め目盛の近傍に検査パターン” 1
1 e ’ 1鵞を設定し、指針仰と検査パターン11
1゜21意との交点ガ1*Pl鵞及びPll * PI
4 金求める。The indicated position is measured using the following means, using the center of the pointer elevation as shown in FIG. To carry out this procedure, place the inspection pattern in advance near the scale for the guideline "1"
1 e ' 1 set, raise the needle and test pattern 11
Intersection with 1°21 1 * Pl and Pll * PI
4. Ask for money.
この交点PI、−P目からまず、指針弘lの中心を求め
る。First, the center of the guideline is determined from the intersection points PI and -P.
(支)交点P1トアロ の中点P1g及び交点P13゜
P 14の中点P!・を求めてから、中点P11 e
PI・の中点I’ 041 t−求めて、この中点PO
41の指針勾・−・中心とする。(Support) Intersection P1 Midpoint P1g of Toaro and Intersection P13゜P 14 Midpoint P!・After finding the midpoint P11 e
Find the midpoint I' 041 t- of PI, and find this midpoint PO
41 pointer slope --- Center.
(ロ)次に、指針IAIの中心を交点1’tt・Pts
Ye結ぶ第1直線と、交点pHs PI4を結ぶ第2
直線の延長上の交点P 04m (2直線の交点)とし
て求め。(b) Next, set the center of the guideline IAI to the intersection 1'tt・Pts
The first line connecting Ye and the second line connecting the intersection pHs PI4
Obtained as the intersection point P 04m (intersection of two straight lines) on the extension of the straight line.
前記0)項で求め九指針IA/の中点ア041とから指
針釘の指示位置を計測し、この計測値’10PUrのメ
モリに記憶させる。その後、次の処理を行って指示検査
を終了する◇
〔4〕 指針と目盛の中心が規格の範囲内に入っている
か否か@0Ptrrにより判定する。The indicated position of the pointer nail is measured from the middle point A041 of the nine pointers IA/ obtained in the above 0), and this measured value '10PUr is stored in the memory. After that, the following process is performed to end the instruction inspection◇ [4] It is determined by @0Ptrr whether the center of the pointer and scale is within the standard range.
次表に示すように指針の回転中心(X1o * yt・
)。As shown in the table below, the center of rotation of the pointer (X1o * yt・
).
各目盛の中心座標及び指針の中心座標が求まったならば
、以下のように各指針の指示が正しいか否かを判定する
。Once the center coordinates of each scale and the center coordinates of the pointers are determined, it is determined whether the instructions of each pointer are correct as follows.
表
(イ)指度0の計測の場合:8点の成す角が判定値幅の
中に入っているか否か検査する。その8点とは目盛の中
心座標(xpoo、 7?(10)、回転中心座標(X
IOe 716)及び指針の中心座Ill (xpoo
o e ypoess )である。Table (a) In the case of measurement with a finger index of 0: Check whether the angle formed by the 8 points is within the judgment value range. The 8 points are the center coordinates of the scale (xpoo, 7? (10), the rotation center coordinates (X
IOe 716) and the central locus of the guideline Ill (xpoo
oe ypoess).
(ロ) 指度「1」〜「7」の計測の場合は第5図に示
すようにして行う。(b) In case of measurement of finger index "1" to "7", it is carried out as shown in FIG.
まず点Aを基準に点Bを計測する。次に点ムを基準に点
口を計測する。そのときの計測値2は次式から得られる
。First, point B is measured based on point A. Next, measure the point mouth based on the point. Measured value 2 at that time is obtained from the following equation.
例えば目盛「1」のとき、
1000X5°’50’ +1000=gl11000
= となる。For example, when the scale is "1", 1000X5°'50' +1000=gl11000
= becomes.
この値と判定値と比較する0
判定値1000±1帥≧1100 rpmであるから判
定結果は正常(oK) となる。This value is compared with the judgment value 0 Judgment value 1000±1 帥≧1100 rpm, so the judgment result is normal (ok).
(ハ) 指度「8」の場合は上記式における0人0ム(
角度)t−予め設定しておき、指度「1」〜「7」と同
様の処理を行うことにより判定−できる。(c) In the case of finger index "8", 0 people 0 m in the above formula (
Angle) t can be determined in advance by setting it in advance and performing the same process as the finger index "1" to "7".
上記のようにして計測器本体/の指針の指示精度の検査
を行えば迅速かつ正確にその検査ができるO
なお、上述の実施例の動作をフローチャートで示すと第
6図のようになる。第6図における各ステップ「1」〜
「4」の説明は上述と同様である。。If the accuracy of indication of the pointer of the measuring instrument body is inspected as described above, the inspection can be done quickly and accurately.The operation of the above-described embodiment is shown in a flowchart as shown in FIG. Each step “1” in Figure 6
The explanation for "4" is the same as above. .
H0発明の効果
以上述べたように、この発明によれば、計測器本体の目
盛パターンの中心位置を計測するとともに、目盛位置か
ら指針の回転中心を計測し、これら計測値から所定の規
格の範囲内に入っているか否かを自動的に判定するよう
にしたので、計測器の指針の指示検査の品質が安定する
とともに1連続して長い時間検査ができ、しかも1台の
検査時間は極めて短時間にできる利点がある。t7’h
、目盛の印刷誤差に影響されないで検査することができ
、さらに高精度(±α2dogあるいは±α1deg以
内)の角度計測及び指度検査ができる等の利点がある。H0 Effects of the invention As described above, according to the invention, the center position of the scale pattern on the measuring instrument body is measured, the rotation center of the pointer is measured from the scale position, and the range of the predetermined standard is determined from these measured values. Since it is automatically determined whether or not it is within the specified range, the quality of the inspection indicated by the measuring instrument's pointer is stable, and one continuous inspection can be performed for a long time, and the inspection time for one device is extremely short. There are advantages to making time. t7'h
This method has advantages such as being able to perform inspection without being affected by scale printing errors, and being able to perform angle measurement and finger index inspection with high accuracy (within ±α2dog or ±α1deg).
第1図はこの発明の一実施例を示すブロック図、第2図
から第6図は第1図の実施例の動作を述べるためのもの
で、第2図は目盛の中心座標及び外周点を求めるための
説明図、第8図ム、Bは指針の回転中心を求めるための
説明図、第4図は指針の中心を計測するための説明図、
第5図は指針と目盛の中心が規格の範囲内に入っている
かを説明するための図、第6図は検査の70−チャート
。
@7図は従来例を示す概略構成図である。
l・・・計測器本体、コ・・・XY移動機構、3・・・
ビデオカメラ、弘・・・画像処理装置、!・・・検査箇
所設定手段、ぶ・・・試験信号発生装置、7・・・XY
位置決めサーボ装置、t・・・c+pT10
第1図
第2図
第5図
第6図FIG. 1 is a block diagram showing one embodiment of the present invention, FIGS. 2 to 6 are for explaining the operation of the embodiment of FIG. 1, and FIG. 2 shows the center coordinates and peripheral points of the scale. Figure 8 is an explanatory diagram for determining the center of rotation of the pointer, and Figure 4 is an explanatory diagram for determining the center of the pointer.
FIG. 5 is a diagram for explaining whether the center of the pointer and scale is within the standard range, and FIG. 6 is a 70-chart for inspection. @Figure 7 is a schematic configuration diagram showing a conventional example. L...Measuring instrument body, K...XY movement mechanism, 3...
Video camera, Hiro... Image processing device! ...Inspection point setting means, B...Test signal generator, 7...XY
Positioning servo device, t...c+pT10 Figure 1 Figure 2 Figure 5 Figure 6
Claims (1)
針の動きを観測するテレビカメラと、前記計測器本体の
下部に配設され、カメラの観測視野を拡大させるための
移動機構と、この移動機構を制御する位置決めサーボ装
置と、前記ビデオカメラからの出力信号が入力され、入
力された信号を二値画像処理、寸法計測処理及び角度計
測処理を行う画像処理装置と、この画像処理装置に検査
箇所信号を設定する検査箇所設定手段と、前記計測器本
体に供給され、その計測器の指針に試験信号を与える試
験信号発生装置と、この試験信号発生装置、画像処理装
置及び位置決めサーボ装置の間で信号の授受を行い、そ
れら装置を制御させるとともに検査合否の判定を行うC
PUとからなる計測器の指示検査装置。(1) A television camera disposed above the measuring instrument body to observe the movement of the pointer of the measuring instrument; and a moving mechanism disposed below the measuring instrument body for expanding the observation field of the camera. a positioning servo device that controls this moving mechanism; an image processing device that receives an output signal from the video camera and performs binary image processing, dimension measurement processing, and angle measurement processing on the input signal; an inspection point setting means for setting an inspection point signal in a processing device; a test signal generating device supplied to the measuring instrument body and giving a test signal to a pointer of the measuring instrument; the test signal generating device, an image processing device, and a positioning device. C that sends and receives signals between servo devices, controls these devices, and determines whether the inspection passes or fails.
A measuring device indicating and inspecting device consisting of a PU.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60103297A JPH07117427B2 (en) | 1985-05-15 | 1985-05-15 | Measuring accuracy of measuring instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60103297A JPH07117427B2 (en) | 1985-05-15 | 1985-05-15 | Measuring accuracy of measuring instruments |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61260121A true JPS61260121A (en) | 1986-11-18 |
JPH07117427B2 JPH07117427B2 (en) | 1995-12-18 |
Family
ID=14350329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60103297A Expired - Fee Related JPH07117427B2 (en) | 1985-05-15 | 1985-05-15 | Measuring accuracy of measuring instruments |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07117427B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01178818A (en) * | 1988-01-08 | 1989-07-17 | Kanto Seiki Co Ltd | Method for inspecting indicated value of indicator type indicating instrument |
JPH034120A (en) * | 1989-06-01 | 1991-01-10 | Kanto Seiki Co Ltd | Adjusting method for indicating value of instrument |
JPH0363822U (en) * | 1989-10-24 | 1991-06-21 | ||
CN102661819A (en) * | 2012-05-09 | 2012-09-12 | 孙兵 | Method for automatically recognizing indicating value of pointer type dial meter by using computer |
CN108458921A (en) * | 2018-04-25 | 2018-08-28 | 山东科技大学 | A kind of drilling internal rotation angle degree repetition measurement device and repetition measurement method |
CN110633620A (en) * | 2019-07-02 | 2019-12-31 | 石化盈科信息技术有限责任公司 | Pointer instrument scale identification method and electronic equipment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196418A (en) * | 1982-05-12 | 1983-11-15 | Yamato Scale Co Ltd | Measurement of accuracy of indication of analog indicator |
JPS59159007A (en) * | 1983-03-01 | 1984-09-08 | Mitsubishi Electric Corp | Device for measuring minute angle |
-
1985
- 1985-05-15 JP JP60103297A patent/JPH07117427B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58196418A (en) * | 1982-05-12 | 1983-11-15 | Yamato Scale Co Ltd | Measurement of accuracy of indication of analog indicator |
JPS59159007A (en) * | 1983-03-01 | 1984-09-08 | Mitsubishi Electric Corp | Device for measuring minute angle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01178818A (en) * | 1988-01-08 | 1989-07-17 | Kanto Seiki Co Ltd | Method for inspecting indicated value of indicator type indicating instrument |
JPH034120A (en) * | 1989-06-01 | 1991-01-10 | Kanto Seiki Co Ltd | Adjusting method for indicating value of instrument |
JPH0363822U (en) * | 1989-10-24 | 1991-06-21 | ||
CN102661819A (en) * | 2012-05-09 | 2012-09-12 | 孙兵 | Method for automatically recognizing indicating value of pointer type dial meter by using computer |
CN108458921A (en) * | 2018-04-25 | 2018-08-28 | 山东科技大学 | A kind of drilling internal rotation angle degree repetition measurement device and repetition measurement method |
CN108458921B (en) * | 2018-04-25 | 2024-02-06 | 山东科技大学 | Device and method for retesting rotation angle in drilling hole |
CN110633620A (en) * | 2019-07-02 | 2019-12-31 | 石化盈科信息技术有限责任公司 | Pointer instrument scale identification method and electronic equipment |
CN110633620B (en) * | 2019-07-02 | 2023-04-11 | 石化盈科信息技术有限责任公司 | Pointer instrument scale identification method and electronic equipment |
Also Published As
Publication number | Publication date |
---|---|
JPH07117427B2 (en) | 1995-12-18 |
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