JPS63713A - Address type positioning device - Google Patents

Address type positioning device

Info

Publication number
JPS63713A
JPS63713A JP61144616A JP14461686A JPS63713A JP S63713 A JPS63713 A JP S63713A JP 61144616 A JP61144616 A JP 61144616A JP 14461686 A JP14461686 A JP 14461686A JP S63713 A JPS63713 A JP S63713A
Authority
JP
Japan
Prior art keywords
signal
address
detection signal
command
address detection
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
JP61144616A
Other languages
Japanese (ja)
Inventor
Akitoshi Suzuki
昭俊 鈴木
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.)
Nikon Corp
Original Assignee
Nikon Corp
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 Nikon Corp filed Critical Nikon Corp
Priority to JP61144616A priority Critical patent/JPS63713A/en
Publication of JPS63713A publication Critical patent/JPS63713A/en
Pending legal-status Critical Current

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  • Lens Barrels (AREA)
  • Microscoopes, Condenser (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To secure the accurate positioning to a command address by comparing an address detection signal with an address command signal and stopping a member to be driven after output of a coincidence signal. CONSTITUTION:The outputs of sensors 2 and 3 are supplied to a comparison means 5 as the address detection signals after undergoing the waveform shaping through a waveform shaping circuit 4. An address command signal is supplied to the means 5 by a command means 6 and the means 5 delivers a coincidence signal when the coincidence is obtained between the address command signal and the address detection signal. The means 6 contains dip switches 6a and 6b and a signal output means 6c which delivers the address command signals in response to the ON/OFF states of both switches 6a and 6b. A control means 7 supplies the address detection signal serving as the output of the circuit 4 and the coincidence signal serving as the output of the means 5. A motor driver 8 controls a motor 9 for rotary shaft 100 by the control signal given from the means 7.

Description

【発明の詳細な説明】 (発明の技術分野) 本発明は、アドレス方式による位置決め装置に関する。[Detailed description of the invention] (Technical field of invention) The present invention relates to a positioning device using an addressing method.

(発明の背景) 被駆動部材の所定位置毎にアドレス信号用のマークを設
ける一方、前記マークを読取り、アI・レス検出信号を
出力する検出手段を前記被駆動部(オに近接して装置本
体に固設し、前記アドレス検出信号に基づいて前記被駆
動部材の位置制?ffffを行なうアドレス方式位置決
め装置、が知られている。
(Background of the Invention) A mark for an address signal is provided at each predetermined position of the driven member, and a detection means for reading the mark and outputting an address detection signal is provided in the vicinity of the driven member (e). There is known an addressing type positioning device which is fixed to a main body and controls the position of the driven member based on the address detection signal.

この種の位置決め装置としては、例えば顕微鏡の対物レ
ボルバ−の位置決め装置がある。すなわち、対物レボル
バ−の各対物レンズ取付穴に対、つさせて、対物レボル
バ−の外側面に数ビット(例えば2ビツト)のアドレス
信号用のマークを磁石を埋め込むことによって形成し、
対物レボルバ−の外側面に対向する鏡基に、上述のマー
クとしての磁石を検出する数ビット(勿論、マークと同
じビット数)の磁気センサ(リードスイッチ等)を検出
手段の一部として設けである。検出手段は磁気センサか
らの信号を波形整形して矩形波状の信号を出力する。
An example of this type of positioning device is a positioning device for an objective revolver of a microscope. That is, a mark for an address signal of several bits (for example, 2 bits) is formed on the outer surface of the objective revolver by embedding a magnet in correspondence with each objective lens mounting hole of the objective revolver.
A magnetic sensor (reed switch, etc.) with several bits (of course, the same number of bits as the mark) for detecting the magnet as the mark mentioned above can be installed on the mirror base facing the outer surface of the objective revolver as part of the detection means. be. The detection means waveform-shapes the signal from the magnetic sensor and outputs a rectangular waveform signal.

ところが、このような構造では、対物レボルバ−が回転
すると磁気センサの前方を横切るマークは連続的に移動
していくため、例えば(1,O)の信号を位置決めのた
めのアドレス指令信号とすると(1,1)のアドレス信
号を出力するための2つの並設した磁石が移動して、初
めの磁石が磁気センサの一方に検知された段階で(1,
0)のアドレス検出信号が得られるため、誤ったアドレ
スの位置に位置決めされてしまう欠点があった。
However, in such a structure, when the objective revolver rotates, the mark that crosses in front of the magnetic sensor moves continuously, so for example, if the signal (1, O) is used as an address command signal for positioning, ( Two parallel magnets for outputting the address signal (1, 1) move, and when the first magnet is detected by one of the magnetic sensors, the address signal (1,
Since an address detection signal of 0) is obtained, there is a drawback that positioning may occur at an incorrect address position.

そこで、顕微鏡の対物レボルバ−の場合には、対物レン
ズが観察光路中に入ると対物レボルバ−のトルクがクリ
ックによって変化するから、この変化を対物レボルバ−
の駆動用モータの駆動電流が変化することをもって捉え
、この検出信号をアドレス検出信号の読込指令信号とし
ている。
Therefore, in the case of a microscope objective revolver, the torque of the objective revolver changes due to clicks when the objective lens enters the observation optical path.
The change in the drive current of the drive motor is detected, and this detection signal is used as the read command signal of the address detection signal.

ところが、アドレス方式位置決め装置を適用する装置と
しては、顕微鏡のように好都合に読込指令信号を得られ
る装置ばかりではないため、このような装置で特別の読
込指令信号の出力装置を設けることは装置が複雑になる
、という欠点があった。
However, since not all devices to which the addressing type positioning device is applied can conveniently obtain reading command signals, such as microscopes, it is difficult to provide a special reading command signal output device for such devices. The drawback was that it was complicated.

(発明の目的) 本発明は、正確に指令アドレスに位置決めできるばかり
でなく、簡単な構成で汎用性のあるアドレス方式位置決
め装置を得ることを目的とする。
(Objective of the Invention) An object of the present invention is to provide an address-type positioning device that not only allows accurate positioning at a command address but also has a simple configuration and is versatile.

(実施例) 以下、図面に示した実施例に基づいて本発明を説明する
(Example) The present invention will be described below based on the example shown in the drawings.

第1図は本発明の一実施例のブロック図、第2図は第1
図のマイクロコンピュータのフローチャート、第3図(
a)〜(c)はマークとセンサとの関係を示す図、第4
図(a)〜(C)は第3図(a)〜(c)に対応して得
られるアドレス検出信号を示す図である。
FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
Flowchart of the microcomputer shown in Figure 3 (
a) to (c) are diagrams showing the relationship between marks and sensors;
FIGS. 3A to 3C are diagrams showing address detection signals obtained corresponding to FIGS. 3A to 3C.

第1図において、被駆動部材としての回転軸100には
円板101が固設され、円板101には異なった倍率の
対物レンズ102.103.104が取り付けられてい
る。円板101の外周部には2つの遮光板1a、1bが
突出して設けられている。不図示の装置本体には、遮光
板1a、1bを検出するセンサ2.3が設けられている
。センサ2.3の間隔は、遮光板1aがセンサ2にて検
出されているときに、右回りに回転した遮光板1bがセ
ンサ3にて検出されるような値に設定されている。セン
サ3は発光部と受光部とを有し、発光部と受光部の間に
遮光板1a、1bの通路が形成されている。
In FIG. 1, a disk 101 is fixed to a rotating shaft 100 as a driven member, and objective lenses 102, 103, and 104 having different magnifications are attached to the disk 101. Two light shielding plates 1a and 1b are provided on the outer circumference of the disc 101 to protrude. A sensor 2.3 for detecting the light shielding plates 1a and 1b is provided in the device main body (not shown). The distance between the sensors 2 and 3 is set to such a value that when the sensor 2 detects the light shield plate 1a, the sensor 3 detects the clockwise rotated light shield plate 1b. The sensor 3 has a light emitting part and a light receiving part, and passages of light shielding plates 1a and 1b are formed between the light emitting part and the light receiving part.

センサ2.3の出力は波形整形回路4にて波形整形され
た後、アドレス検出信号として比較手段5に入力される
。比較手段5には指令手段6によってアドレス指令信号
が入力されており、比較手段5は、アドレス指令信号と
アドレス検出信号とが一致すると一致信号を出力する。
The output of the sensor 2.3 is waveform-shaped by a waveform shaping circuit 4 and then inputted to the comparison means 5 as an address detection signal. An address command signal is inputted to the comparison means 5 by the command means 6, and the comparison means 5 outputs a coincidence signal when the address command signal and the address detection signal match.

指令手段6はデイツプスイソチロa、6bと、デイツプ
スイッチ6a、6bのオン−オフ状態に応じたアドレス
指令信号を出力する信号出力手段6Cとを有する。
The command means 6 has dip switches a, 6b, and a signal output means 6C for outputting an address command signal according to the on/off state of the dip switches 6a, 6b.

制御手段7は、波形整形回路4の出力であるアドレス検
出信号と、比較手段5の出力である一致信号とを人力す
る。
The control means 7 manually inputs the address detection signal which is the output of the waveform shaping circuit 4 and the coincidence signal which is the output of the comparison means 5.

モータドライバ8は制御手段7からの制御信号によって
、回転軸100を回転駆動するモータ9を制御する。
The motor driver 8 controls the motor 9 that rotationally drives the rotating shaft 100 based on the control signal from the control means 7 .

本実施例では、比較手段5と制御手段7とをマイクロコ
ンピュータMにて構成している。
In this embodiment, the comparison means 5 and the control means 7 are constituted by a microcomputer M.

次に、マイクロコンピュータMのフローチャートである
第2図に基づいて第1図の動作説明を行なう。
Next, the operation of FIG. 1 will be explained based on FIG. 2, which is a flowchart of the microcomputer M.

まず、アドレス指令信号を読込み(ステップ20)、ア
ドレス指令信号が(1,1)であるか否かを判断する(
ステップ21)。アドレス指令信号が(1,1)である
と、モータを正転しくステップ22)、アドレス検出信
号を読込み(ステッブ23)、アドレス指令信号とアド
レス検出信号とが一致すると(ステップ24)、モータ
を停止せしめる(ステップ25)。
First, the address command signal is read (step 20), and it is determined whether the address command signal is (1, 1) (
Step 21). If the address command signal is (1, 1), the motor is rotated in the normal direction (step 22), the address detection signal is read (step 23), and when the address command signal and the address detection signal match (step 24), the motor is It is stopped (step 25).

一方、アドレス指令信号が(1,1)以外のときは、モ
ータを正転しくステップ26)、アドレス検出信号を読
込み(ステップ27)、アドレス検出信号が(0,O)
以外になった時(ステ、ブ28)、アドレス指令信号と
アドレス検出信号を比較しくステップ29)、一致した
時アドレス検出信号が(1,1)になるか(ステップ3
0)、(0,,0)になるか(ステップ31)をチエツ
クし続はアドレス検出信号が(1,1)になった時には
、アドレス検出信号が(0,0)になるのを待ち(ステ
ップ32)再び次のアドレス検出信号を読込む(ステッ
プ27)、またアドレス検出信号が(0,O)になった
時には、モータを逆転しくステップ33)、アドレス指
令信号とアドレス検出信号とが一致した時(ステップ3
4)、モータを停止する(ステップ25)。
On the other hand, when the address command signal is other than (1, 1), the motor is rotated forward (step 26), the address detection signal is read (step 27), and the address detection signal is (0, O).
(Step 28), compare the address command signal and the address detection signal (Step 29), and when they match, check whether the address detection signal becomes (1, 1) (Step 3).
0), (0,,0) (step 31). Next, when the address detection signal becomes (1, 1), wait until the address detection signal becomes (0, 0) (step 31). Step 32) Read the next address detection signal again (Step 27), and when the address detection signal becomes (0, O), reverse the motor and step 33), the address command signal and address detection signal match. (Step 3)
4) Stop the motor (step 25).

(ステ・ノブ29)のアドレス指令信号とアドレス検出
信号とが一致しなかった時には、検出信号が(0,O)
になるのを待ち(ステップ32)、再び次のアドレス検
出信号を読込む(ステップ27)。
When the address command signal of (steer knob 29) and the address detection signal do not match, the detection signal becomes (0, O).
The next address detection signal is read again (step 27).

このような構造であるから、例えば第3図(a)のよう
に遮光板1aがセンサ2の位置にあるときには、第1図
で光路βに対物レンズ102が挿入され、第4図(a)
のようにアドレス検出信号(52,S3)は(1,、O
)であり、第3図(b)のように、遮光板1bがセンサ
3の位置にあるときには第1図で光路!に対物レンズ1
04が挿入され、第4図(b)のようにアドレス検出信
号(SZ、S:+)は(0,l)であり、第3図(c)
のように、遮光板1bがセンサ2の位置にあり、遮光板
1aがセンサ3の位置にあるときには第1図で光路lに
対物レンズ103が挿入され、第4図(c)のようにア
ドレス検出信号(s2゜S3)は(1,1)である。し
かしながら、アドレス検出信号(Sz 、  53 )
として(1,1)が生ずる場合の時間変化を見ると、第
4図(c)に示したように、3つの領域、すなわち、ア
ドレス検出信号(sz、s3)が(1,0)を示すt1
領域、(1,1)を示すt2領域、<0.1)を示すt
3領域が生じてしまう (センサ2,3の受光領域及び
遮光板1a、■bの大きさが同じであるが、各々の間隔
が若干ずれている場合である。
Because of this structure, when the light shielding plate 1a is at the position of the sensor 2 as shown in FIG. 3(a), the objective lens 102 is inserted into the optical path β in FIG. 1, and as shown in FIG. 4(a).
The address detection signal (52, S3) is (1,, O
), and when the light shielding plate 1b is at the position of the sensor 3 as shown in FIG. 3(b), the optical path in FIG. objective lens 1
04 is inserted, the address detection signal (SZ, S:+) is (0, l) as shown in FIG. 4(b), and the address detection signal (SZ, S:+) is (0, l) as shown in FIG. 3(c).
When the light shielding plate 1b is at the position of the sensor 2 and the light shielding plate 1a is at the position of the sensor 3 as shown in FIG. 1, the objective lens 103 is inserted into the optical path l in FIG. The detection signal (s2°S3) is (1,1). However, the address detection signal (Sz, 53)
Looking at the time change when (1, 1) occurs, as shown in FIG. t1
region, t2 representing (1,1) region, t representing <0.1)
(This is a case where the light-receiving areas of the sensors 2 and 3 and the light-shielding plates 1a and 1b are the same in size, but the intervals between them are slightly different.

センサ2,3の受光領域の大きさのばらつき、遮光板1
a、1bの製造誤差等により種々の関係が生じうる)。
Variations in the size of the light receiving areas of sensors 2 and 3, light shielding plate 1
Various relationships may occur due to manufacturing errors in a and lb).

そこで、アドレス検出信号(1゜1)を得る過程で生ず
る(1.0)、(0,1)状態と、本来のアドレス検出
信号である(1゜0)、(0,1)状態とで共に比較手
段5から一致信号が得られてしまう。ところが、上記実
施例によれば、アドレス検出信号が(1,1)の場合は
第4図(c)のt2領域しかないので、アドレス指令信
号とアドレス検出信号とが一致すると比較手段5から得
られる一致信号によってモータ9が停止するが、アドレ
ス検出信号が(1,O)、(0,1)のときは、比較手
段5から一致信号が得られた後、一致信号が消えたとき
にアドレス検出信号が<0. 0)になるか否かを判断
している。
Therefore, the (1.0), (0,1) state that occurs in the process of obtaining the address detection signal (1°1) and the (1°0), (0,1) state that is the original address detection signal. In both cases, a matching signal is obtained from the comparing means 5. However, according to the above embodiment, when the address detection signal is (1, 1), there is only the t2 region in FIG. When the address detection signal is (1, O), (0, 1), the motor 9 is stopped by the coincidence signal that is generated, but when the coincidence signal disappears after the coincidence signal is obtained from the comparing means 5, the address If the detection signal is <0. 0).

すなわち、第4図(a)ではアドレス検出信号が(1,
O)になると比較手段5から一致信号が生じ、−敗信号
が無くなるとアドレス検出信号は(0,O)となる。と
ころが第4図(c)では、領域1.でアドレス検出信号
が(1,O)になって比較手段5から一致信号が生じて
いても、−敗信号が無くなると(領域t2に移行し)ア
ドレス検出信号は(1,1)になるから、これをもって
真の位置(前者)と偽の位置(後者)とを識別している
。前者(第4図(a)のとき)においては、真の位置と
判断したときには停止位置を過ぎてしまっているから、
モータ9を逆転する。そして、再びアドレス検出信号(
1,0)が得られると比較手段5は一致信号を出力する
から、これによってモータ9を停止する。アドレス指令
信号が(0゜1)の場合も同様である。
That is, in FIG. 4(a), the address detection signal is (1,
When the signal becomes O), a match signal is generated from the comparison means 5, and when the -defeat signal disappears, the address detection signal becomes (0, O). However, in FIG. 4(c), area 1. Even if the address detection signal becomes (1, O) and a match signal is generated from the comparison means 5, when the -defeat signal disappears (moves to area t2), the address detection signal becomes (1, 1). , which distinguishes between the true position (former) and the false position (latter). In the former case (as shown in Figure 4(a)), by the time the true position is determined, the stop position has already been passed.
Reverse motor 9. Then, the address detection signal (
1, 0), the comparison means 5 outputs a coincidence signal, and the motor 9 is thereby stopped. The same applies when the address command signal is (0°1).

このようにして、特別の読込タイミングを指令する装置
を設けることなく正確に位置決めを行なうことができる
In this way, accurate positioning can be performed without providing a device for commanding special reading timing.

なお、以上の実施例では、センサを2つ用いて2ビツト
、すなわち最大4種類の位置を設定する例を上げたが、
センサをさらに増やすことでより多くの位置を設定する
こともできる。
In addition, in the above embodiment, an example was given in which two sensors are used to set two bits, that is, a maximum of four types of positions.
You can also set more positions by adding more sensors.

また、マークとしては遮光板の代わりに反射板を用い、
センサとして反射型のものを用いても良く、また光電的
な検出の代わりに、磁気的等信の手法によっても良い。
Also, as a mark, a reflective plate is used instead of a light shielding plate,
A reflective sensor may be used as the sensor, and instead of photoelectric detection, a magnetic detection method may be used.

すなわち、例えばマークとして磁石を埋め込んで形成し
、センサとしてリードスイッチの如き磁気感応素子を用
いる如くである。
That is, for example, a mark may be formed by embedding a magnet, and a magnetically sensitive element such as a reed switch may be used as a sensor.

(発明の効果) 以上のように本発明によれば、正確に指令アドレスに位
置決めできるばかりでなく、簡単な構成で汎用性のある
アドレス方式位置決め装置を得ることができる。特に本
発明によれば、マークと検出手段との位置決め本n度に
厳密さを要求されないので、組立、調整作業が簡便であ
る。
(Effects of the Invention) As described above, according to the present invention, not only can positioning be performed accurately at a command address, but also a versatile addressing type positioning device can be obtained with a simple configuration. Particularly, according to the present invention, assembly and adjustment operations are simple because no precision is required in the positioning of the mark and the detection means.

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

第1図は本発明の一実施例のブロック図、第2図は第1
図のマイクロコンピュータのフローチャート、第3図(
a)〜(C)はマークとセンサとの関係を示す図、第4
図(a)〜(C)は第3図(a)〜(C)に対応して得
られるアドレス検出信号を示す図、である。 (主要部分の符号の説明) 1a、1b・・・遮光板(マーク)、 2.3・・・センサ、 4・・・波形整形手段、 5・・・比較手段、 6・・・指令手段、 7・・・制御手段。
FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
Flowchart of the microcomputer shown in Figure 3 (
a) to (C) are diagrams showing the relationship between marks and sensors;
FIGS. 3A to 3C are diagrams showing address detection signals obtained corresponding to FIGS. 3A to 3C. (Explanation of symbols of main parts) 1a, 1b... Light shielding plate (mark), 2.3... Sensor, 4... Waveform shaping means, 5... Comparing means, 6... Commanding means, 7... Control means.

Claims (1)

【特許請求の範囲】 被駆動部材の所定位置毎にアドレス信号用のマークを設
ける一方、前記マークを読取り、アドレス検出信号を出
力する検出手段を装置本体に固設し、前記アドレス検出
信号に基づいて前記被駆動部材の位置制御を行なうアド
レス方式位置決め装置において、 所望の位置に対応したアドレス指令信号を出力する指令
手段と、 前記アドレス検出信号と前記アドレス指令信号とを比較
し、両者が一致すると一致信号を出力する比較手段と、 前記被駆動部材を一方向へ移動させ、前記一致信号が出
力された直後に変化したアドレス検出信号から、前記一
致信号が出力された時の前記アドレス検出信号が疑似信
号か否かを判定し、疑似信号でなければ前記被駆動部材
を逆方向へ移動させ、前記被駆動部材が逆方向へ移動さ
れた後、前記一致信号が出力されると前記被駆動部材を
停止せしめる制御手段と、 を有することを特徴とするアドレス方式位置決め装置。
[Scope of Claims] A mark for an address signal is provided at each predetermined position of the driven member, and a detection means for reading the mark and outputting an address detection signal is fixedly installed in the main body of the apparatus, and a detection means for reading the mark and outputting an address detection signal is provided, In the addressing type positioning device that controls the position of the driven member by using a command means for outputting an address command signal corresponding to a desired position, the address detection signal and the address command signal are compared, and if the two match, a comparison means for outputting a coincidence signal; moving the driven member in one direction, and determining from an address detection signal that changes immediately after the coincidence signal is output, the address detection signal when the coincidence signal is output; It is determined whether the signal is a pseudo signal or not, and if the signal is not a pseudo signal, the driven member is moved in the opposite direction, and after the driven member is moved in the opposite direction, when the matching signal is output, the driven member is moved. An addressing method positioning device comprising: a control means for stopping the address system; and a control means for stopping the address system.
JP61144616A 1986-06-20 1986-06-20 Address type positioning device Pending JPS63713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61144616A JPS63713A (en) 1986-06-20 1986-06-20 Address type positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61144616A JPS63713A (en) 1986-06-20 1986-06-20 Address type positioning device

Publications (1)

Publication Number Publication Date
JPS63713A true JPS63713A (en) 1988-01-05

Family

ID=15366174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61144616A Pending JPS63713A (en) 1986-06-20 1986-06-20 Address type positioning device

Country Status (1)

Country Link
JP (1) JPS63713A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716957A (en) * 1985-03-29 1988-01-05 Mitsubishi Denki Kabushiki Kaisha Duct type multizone air conditioning system
JP2006106029A (en) * 2004-09-30 2006-04-20 Olympus Corp Compound microscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716957A (en) * 1985-03-29 1988-01-05 Mitsubishi Denki Kabushiki Kaisha Duct type multizone air conditioning system
JP2006106029A (en) * 2004-09-30 2006-04-20 Olympus Corp Compound microscope

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