JPH02133607U - - Google Patents

Info

Publication number
JPH02133607U
JPH02133607U JP4167689U JP4167689U JPH02133607U JP H02133607 U JPH02133607 U JP H02133607U JP 4167689 U JP4167689 U JP 4167689U JP 4167689 U JP4167689 U JP 4167689U JP H02133607 U JPH02133607 U JP H02133607U
Authority
JP
Japan
Prior art keywords
origin
origin detection
electronic theodolite
scale
detection device
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.)
Granted
Application number
JP4167689U
Other languages
Japanese (ja)
Other versions
JPH07884Y2 (en
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 filed Critical
Priority to JP1989041676U priority Critical patent/JPH07884Y2/en
Publication of JPH02133607U publication Critical patent/JPH02133607U/ja
Application granted granted Critical
Publication of JPH07884Y2 publication Critical patent/JPH07884Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図はこの考案のインクリメンタル式ロータ
リーエンコーダを搭載した電子式セオドライトの
１実施例の概要図、第２図はその固定スリツト板
の平面図、第３図は演算回路の１例を示すブロツ
ク図、第４図、第５図は従来のセオドライト及び
インクリメンタル式ロータリーエンコーダの概要
図である。 １：回転スリツト円板、１ａ：原点目盛、１ｂ
：スリツト、２，６：固定スリツト板、３：発光
素子、４：受光素子、５：望遠鏡、６ａ：計数用
目盛、６ｂ，６ｃ：原点目盛、７：望遠鏡支持枠
。 Fig. 1 is a schematic diagram of one embodiment of an electronic theodolite equipped with an incremental rotary encoder of this invention, Fig. 2 is a plan view of its fixed slit plate, and Fig. 3 is a block diagram showing an example of an arithmetic circuit. , 4 and 5 are schematic diagrams of a conventional theodolite and an incremental rotary encoder. 1: Rotating slit disk, 1a: Origin scale, 1b
: slit, 2, 6: fixed slit plate, 3: light emitting element, 4: light receiving element, 5: telescope, 6a: counting scale, 6b, 6c: origin scale, 7: telescope support frame.

Claims (1)

【実用新案登録請求の範囲】 (1) 原点目盛を備えたインクリメンタル式エン
コーダを使用する電子式セオドライトにおいて、
回転円板スリツト上に設けた１つの原点目盛に対
し、これを検出するための複数の原点検出目盛及
び発光、受光手段を設けたことを特徴とする電子
式セオドライトの原点検出装置。 (2) 上記複数の原点検出目盛は、同心的に、同
一の固定スリツト板上に設けたことを特徴とする
請求項１の電子式セオドライトの原点検出装置。[Claims for Utility Model Registration] (1) In an electronic theodolite using an incremental encoder with an origin scale,
An origin detection device for an electronic theodolite, characterized in that a plurality of origin detection scales and light emitting and light receiving means are provided for detecting one origin scale provided on a rotating disc slit. (2) The origin detection device for an electronic theodolite according to claim 1, wherein the plurality of origin detection scales are provided concentrically on the same fixed slit plate.
JP1989041676U 1989-04-11 1989-04-11 Origin detection device for electronic theodolite Expired - Lifetime JPH07884Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989041676U JPH07884Y2 (en) 1989-04-11 1989-04-11 Origin detection device for electronic theodolite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989041676U JPH07884Y2 (en) 1989-04-11 1989-04-11 Origin detection device for electronic theodolite

Publications (2)

Publication Number Publication Date
JPH02133607U true JPH02133607U (en) 1990-11-06
JPH07884Y2 JPH07884Y2 (en) 1995-01-11

Family

ID=31552549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989041676U Expired - Lifetime JPH07884Y2 (en) 1989-04-11 1989-04-11 Origin detection device for electronic theodolite

Country Status (1)

Country Link
JP (1) JPH07884Y2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585469A (en) * 1981-06-30 1983-01-12 Nec Home Electronics Ltd Engine ignition system
JPS58204314A (en) * 1982-05-24 1983-11-29 Nippon Kogaku Kk <Nikon> Encoder
JPS607316A (en) * 1983-06-28 1985-01-16 Asahi Optical Co Ltd Angle measuring device
JPS6019919U (en) * 1983-07-20 1985-02-12 旭光学工業株式会社 Angle measuring device
JPS6076215U (en) * 1983-11-01 1985-05-28 旭光学工業株式会社 Angle measuring device
JPS61112922A (en) * 1984-11-07 1986-05-30 Toshiba Corp Optical encoder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585469A (en) * 1981-06-30 1983-01-12 Nec Home Electronics Ltd Engine ignition system
JPS58204314A (en) * 1982-05-24 1983-11-29 Nippon Kogaku Kk <Nikon> Encoder
JPS607316A (en) * 1983-06-28 1985-01-16 Asahi Optical Co Ltd Angle measuring device
JPS6019919U (en) * 1983-07-20 1985-02-12 旭光学工業株式会社 Angle measuring device
JPS6076215U (en) * 1983-11-01 1985-05-28 旭光学工業株式会社 Angle measuring device
JPS61112922A (en) * 1984-11-07 1986-05-30 Toshiba Corp Optical encoder

Also Published As

Publication number Publication date
JPH07884Y2 (en) 1995-01-11

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