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DE4009728A1 - Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes - Google Patents

Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes

Info

Publication number
DE4009728A1
DE4009728A1 DE19904009728 DE4009728A DE4009728A1 DE 4009728 A1 DE4009728 A1 DE 4009728A1 DE 19904009728 DE19904009728 DE 19904009728 DE 4009728 A DE4009728 A DE 4009728A DE 4009728 A1 DE4009728 A1 DE 4009728A1
Authority
DE
Germany
Prior art keywords
base body
optical path
partial bodies
channels
longitudinal axes
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.)
Withdrawn
Application number
DE19904009728
Other languages
German (de)
Inventor
Hartmut Dipl Ing Hoffmann
Eberhard Dipl Phys Kiesel
Klaus V Dr Rer Nat Baron
Peter Neumann
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.)
Rockwell Collins Deutschland GmbH
Original Assignee
Teldix GmbH
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 Teldix GmbH filed Critical Teldix GmbH
Priority to DE19904009728 priority Critical patent/DE4009728A1/en
Publication of DE4009728A1 publication Critical patent/DE4009728A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58Turn-sensitive devices without moving masses
    • G01C19/64Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/66Ring laser gyrometers
    • G01C19/661Ring laser gyrometers details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08Construction or shape of optical resonators or components thereof
    • H01S3/081Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083Ring lasers
    • H01S3/0835Gas ring lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)

Abstract

The method involves forming a base body which has channels forming a polygonal optical path for a laser gyro. Two partial bodies (1,2) are manufactured. Each has a sepg. surface (3) into which channels (4-6) are let along the longitudinal axes. The partial bodies are joined at the sepg. surfaces. They are moulded into a shape from a meltable material. Recesses for deflection mirrors are formed next to the channels. ADVANTAGE - Very high accuracy formation of optical path through channels.

Description

Stand der TechnikState of the art

Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Grundkörpers für einen Laserkreisel, wobei der Grundkörper mit Kanälen versehen wird, die einen polygonalen optischen Weg bilden.The present invention relates to a method for producing a Base body for a laser gyroscope, the base body with channels is provided, which form a polygonal optical path.

Aus der DE 29 39 946 und der DE 32 17 695 sind Laserkreisel der eingangs genannten Art bekannt. Solche Laserkreisel dienen dazu, Drehbewegungen bzw. Winkelgeschwindigkeiten z. B. von Flugkörpern zu ermitteln. Die Funktion eines Laserkreisels basiert darauf, daß monochromatische Lichtbündel einen geschlossenen optischen Weg in entgegengesetzte Richtungen durchlaufen. Wird nun der Laserkreisel in eine Drehbewegung versetzt, so ändern sich die Umlaufgeschwindigkeiten und damit die Frequenzen der beiden gegenläufigen Lichtbündel konträr zueinander. Die Übertragung beider Lichtbündel ergibt ein Interferenzspektrum, aus dem die Drehgeschwindigkeit herleitbar ist. Der optische Weg besteht gemäß dem Stand der Technik aus mehreren ein Poly­ gon (z.B. Dreieck) bildenden Kanälen, die durch einen beispielsweise aus Quarzglas hergestellten Grundkörper verlaufen. An den Polygonecken sind Spiegel angeordnet, welche die Lichtstrahlen von einem Kanal in einen ande­ ren umleiten.From DE 29 39 946 and DE 32 17 695 are laser gyros at the beginning known type known. Such laser gyros are used to prevent rotary movements or Angular velocities z. B. to determine missiles. The function of a laser gyroscope is based on the fact that monochromatic light beams unite one traverse the closed optical path in opposite directions. If the laser gyroscope is now set into a rotary motion, the change Orbital speeds and thus the frequencies of the two opposing ones Beams of light contrary to each other. The transmission of both light beams results an interference spectrum from which the rotational speed can be derived. According to the prior art, the optical path consists of several poly gon (e.g. triangle) forming channels that are characterized by an example  Base body made of quartz glass run. At the polygon corners are Mirrors arranged, which the light rays from one channel to another redirect.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Verfahren mit den Merkmalen des Anspruches 1 hat den Vorteil, daß es die Herstellung des Grundkörpers eines Laserkreisels mit geringem Aufwand ermöglicht. Das gilt vor allem, wenn die zwei Teilkörper, aus denen der Grundkörper zusammengesetzt wird, gießtechnisch hergestellt werden. Hiermit lassen sich die den optischen Weg im Grundkörper bildenden Kanäle mit sehr hoher Genauigkeit realisieren.The inventive method with the features of claim 1 has the Advantage that it has the manufacture of the base body of a laser gyroscope enables little effort. This is especially true if the two partial bodies, from which the base body is assembled, manufactured by casting will. This enables the optical path in the base body to be formed Realize channels with very high accuracy.

Beschreibungdescription

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird nun die Erfindung näher erläutert.Based on an embodiment shown in the drawing the invention explained in more detail.

Die Figur zeigt in perspektivischer Darstellung zwei Teilkörper 1 und 2, die nach ihrer Herstellung zu einem Grundkörper für einen Laserkreisel zusammengefügt werden. Die Teilkörper 1 und 2 werden zweckmäßigerweise aus einem schmelzbaren Werkstoff (z.B. Quarzglas) in einer Form gegossen. Da beide Teilkörper 1 und 2 identisch sind, reicht für ihren Guß eine einzige Form aus. Jeder der Teilkörper 1 und 2 weist, wie der Figur am Beispiel des Teilkörpers 1 zu entnehmen ist, eine Trennfläche (punktierte Fläche) 3 auf. Mit diesen Trennflächen 3 werden die fertiggestellten Teilkörper 1, 2 mit­ einander verbunden (z. B. durch Glaslot). In der Trennfläche 3 sind drei ein Dreieck umschließende, entlang ihrer Längsachse geteilte Kanäle 4, 5 und 6 angeformt.The figure shows a perspective view of two partial bodies 1 and 2 , which after their manufacture are joined together to form a base body for a laser gyroscope. The sub-bodies 1 and 2 are expediently cast in a mold from a fusible material (eg quartz glass). Since both partial bodies 1 and 2 are identical, a single shape is sufficient for their casting. Each of the partial bodies 1 and 2 , as can be seen in the figure using the example of the partial body 1 , has a separating surface (dotted surface) 3 . The finished partial bodies 1 , 2 are connected to one another with these separating surfaces 3 (for example by glass solder). In the separating surface 3 , three channels 4 , 5 and 6 are formed which surround a triangle and are divided along their longitudinal axis.

Die in jedem Teilkörper 1, 2 eingelassenen halbierten Kanäle 4, 5, 6 ergän­ zen sich bei der Verbindung der Teilkörper zu vollständigen Kanälen.The halved channels 4 , 5 , 6 embedded in each partial body 1 , 2 complement each other when connecting the partial bodies to complete channels.

Es ist zweckmäßig bei der Herstellung der beiden Teilkörper 1 und 2 an den Ecken der ein Polygon (hier Dreieck) bildenden Kanäle 4, 5, 6 Aufnahmen 7, 8, 9 für Umlenkspiegel mit anzuformen.It is useful in the manufacture of the two partial bodies 1 and 2 at the corners of the channels 4 , 5 , 6 receptacles 7 , 8 , 9 forming a polygon (here triangle) for deflecting mirrors.

Claims (3)

1. Verfahren zum Herstellen eines Grundkörpers für einen Laserkreisel, wo­ bei der Grundkörper mit Kanälen versehen wird, die einen polygonalen optischen Weg bilden, dadurch gekennzeichnet, daß zwei Teilkörper (1, 2) hergestellt werden, von denen jeder eine Trennfläche (3) aufweist, in der die entlang ihrer Längsachse geteilten Kanäle (4, 5, 6) eingelassen sind, und daß die Teilkörper (1, 2) an ihren Trennflächen (3) miteinan­ der verbunden werden.1. A method for producing a base body for a laser gyroscope, where the base body is provided with channels that form a polygonal optical path, characterized in that two partial bodies ( 1 , 2 ) are produced, each of which has a separating surface ( 3 ) , in which the channels ( 4 , 5 , 6 ) divided along their longitudinal axis are let in, and that the partial bodies ( 1 , 2 ) are connected to one another at their parting surfaces ( 3 ). 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Teilkörper (1, 2) aus einem schmelzbaren Werkstoff in einer Form gegossen werden.2. The method according to claim 1, characterized in that the partial body ( 1 , 2 ) are cast from a meltable material in a mold. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in den Teilkörpern (1, 2) neben den Kanälen (4, 5, 6) auch Aufnahmen (7, 8, 9) für Umlenkspiegel mit angeformt werden.3. The method according to claim 1 or 2, characterized in that in the partial bodies ( 1 , 2 ) in addition to the channels ( 4 , 5 , 6 ) and receptacles ( 7 , 8 , 9 ) for deflecting mirrors are formed with.
DE19904009728 1989-04-03 1990-03-27 Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes Withdrawn DE4009728A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19904009728 DE4009728A1 (en) 1989-04-03 1990-03-27 Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910657 1989-04-03
DE19904009728 DE4009728A1 (en) 1989-04-03 1990-03-27 Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes

Publications (1)

Publication Number Publication Date
DE4009728A1 true DE4009728A1 (en) 1990-10-04

Family

ID=25879449

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904009728 Withdrawn DE4009728A1 (en) 1989-04-03 1990-03-27 Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017188A1 (en) * 1990-05-29 1991-12-05 Bodenseewerk Geraetetech GAS RING LASER
US5181306A (en) * 1991-02-08 1993-01-26 Carl-Zeiss-Stiftung Method of making laser gyro resonator blocks
CN113137960A (en) * 2021-05-18 2021-07-20 湖南二零八先进科技有限公司 Modularized ultra-large laser gyro resonant cavity and manufacturing method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930731A (en) * 1974-02-11 1976-01-06 Raytheon Company Laser gyroscope
US3937578A (en) * 1974-02-11 1976-02-10 Raytheon Company Laser gyroscope
US3982204A (en) * 1974-02-11 1976-09-21 Raytheon Company Laser discharge tube assembly
GB2004113A (en) * 1977-09-07 1979-03-21 Singer Co Ring laser gyroscope
DE3217695A1 (en) * 1981-06-08 1982-12-23 The Singer Co., 06904 Stamford, Conn. RING LASER GYROSCOPE WITH DOPPLER MIRRORS AND SLIDING DRIVE DEVICES
DE3632585A1 (en) * 1985-09-28 1987-04-02 Sharp Kk SEMICONDUCTOR LASER
EP0251128A2 (en) * 1986-06-27 1988-01-07 Honeywell Inc. Method of making a ring laser
DE2939946C2 (en) * 1978-11-17 1989-11-30 The Singer Co., Stamford, Conn., Us

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930731A (en) * 1974-02-11 1976-01-06 Raytheon Company Laser gyroscope
US3937578A (en) * 1974-02-11 1976-02-10 Raytheon Company Laser gyroscope
US3982204A (en) * 1974-02-11 1976-09-21 Raytheon Company Laser discharge tube assembly
GB2004113A (en) * 1977-09-07 1979-03-21 Singer Co Ring laser gyroscope
DE2839066A1 (en) * 1977-09-07 1979-03-22 Singer Co RING LASER GYRO
DE2939946C2 (en) * 1978-11-17 1989-11-30 The Singer Co., Stamford, Conn., Us
DE3217695A1 (en) * 1981-06-08 1982-12-23 The Singer Co., 06904 Stamford, Conn. RING LASER GYROSCOPE WITH DOPPLER MIRRORS AND SLIDING DRIVE DEVICES
DE3632585A1 (en) * 1985-09-28 1987-04-02 Sharp Kk SEMICONDUCTOR LASER
EP0251128A2 (en) * 1986-06-27 1988-01-07 Honeywell Inc. Method of making a ring laser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017188A1 (en) * 1990-05-29 1991-12-05 Bodenseewerk Geraetetech GAS RING LASER
US5181306A (en) * 1991-02-08 1993-01-26 Carl-Zeiss-Stiftung Method of making laser gyro resonator blocks
EP0498236A3 (en) * 1991-02-08 1993-03-17 Firma Carl Zeiss Method of producing gyrolaser resonator-blocks
CN113137960A (en) * 2021-05-18 2021-07-20 湖南二零八先进科技有限公司 Modularized ultra-large laser gyro resonant cavity and manufacturing method thereof

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8139 Disposal/non-payment of the annual fee