FR2362364A1 - LENGTH MEASURING DEVICE - Google Patents
LENGTH MEASURING DEVICEInfo
- Publication number
- FR2362364A1 FR2362364A1 FR7724887A FR7724887A FR2362364A1 FR 2362364 A1 FR2362364 A1 FR 2362364A1 FR 7724887 A FR7724887 A FR 7724887A FR 7724887 A FR7724887 A FR 7724887A FR 2362364 A1 FR2362364 A1 FR 2362364A1
- Authority
- FR
- France
- Prior art keywords
- scale
- segments
- carriage
- scanning
- phototransistors
- 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
Links
- 238000005259 measurement Methods 0.000 abstract 3
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
- G01D5/363—Direction discrimination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
In this device, it is possible to adjust by means of a scale consisting of at least two segments (2, 2a) a measurement carriage (6) which has phototransistors (I, II) for the photoelectric scanning of an incremental graduation (3) of the scale, which control display devices for the measured length, control devices for taking account of the adjustment direction of the carriage (6) for the counter sign being provided. In order to simplify the composition of the segments (2, 2a), and to ensure that the gap width (A) between two segments (2, 2a) of the scale does not influence the measurement accuracy, two groups (I, II) of phototransistors for scanning the scale are arranged on the measurement carriage (6) at a distance from one another that is kept larger than the gap width (A), provision being made of a changeover switch which in each case connects only one of these groups (I or II) to the counting mechanism and also the control device for the sign. The changeover switch can be operated by control devices (4, 5, 7, 8) assigned to the joint regions of the scale segments (2, 2a) when each joint region is crossed over by the carriage (6), and alternately switches from the scanning group (I or II) reaching and crossing the joint region to the respective other scanning group (II or I).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0617576A AT376298B (en) | 1976-08-19 | 1976-08-19 | DEVICE FOR LENGTH MEASUREMENT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2362364A1 true FR2362364A1 (en) | 1978-03-17 |
FR2362364B1 FR2362364B1 (en) | 1983-09-02 |
Family
ID=3583637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7724887A Granted FR2362364A1 (en) | 1976-08-19 | 1977-08-12 | LENGTH MEASURING DEVICE |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT376298B (en) |
CH (1) | CH617006A5 (en) |
FR (1) | FR2362364A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2479446A1 (en) * | 1980-03-25 | 1981-10-02 | Soro Electro Optics | Optical grating system for displacement measurement - has cursor assembly sliding along fixed rule and uses electronic circuit to switch detector heads when grating junction detected |
EP0160153A1 (en) * | 1983-11-10 | 1985-11-06 | Vcom S.A. | Device for obtaining numerical coordinates of a point, or a group of points |
EP0209676A2 (en) * | 1985-07-23 | 1987-01-28 | Dr. Johannes Heidenhain GmbH | Length of way measuring device |
FR2750492A1 (en) * | 1996-05-24 | 1998-01-02 | Braun Paul W | METHOD AND DEVICE FOR POSITIONING MOBILE PARTS OF MACHINES |
EP2866337A3 (en) * | 2013-08-30 | 2015-11-11 | Yamaha Hatsudoki Kabushiki Kaisha | Slider for linear conveyer and linear conveyer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19628765B4 (en) * | 1996-07-17 | 2007-04-05 | Braun, Paul-Wilhelm, Dipl.-Ing. | Method and device for determining the position of non-rectilinearly moving, in particular rotating machine parts |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1333049A (en) * | 1962-09-04 | 1963-07-19 | Hensoldt & Sohne M | Photoelectric measuring equipment |
DE1773460A1 (en) * | 1968-05-17 | 1971-09-23 | Heidenhain Johannes Dr | Arrangement for determining the relative position of two parts |
-
1976
- 1976-08-19 AT AT0617576A patent/AT376298B/en not_active IP Right Cessation
-
1977
- 1977-08-09 CH CH972677A patent/CH617006A5/en not_active IP Right Cessation
- 1977-08-12 FR FR7724887A patent/FR2362364A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1333049A (en) * | 1962-09-04 | 1963-07-19 | Hensoldt & Sohne M | Photoelectric measuring equipment |
DE1773460A1 (en) * | 1968-05-17 | 1971-09-23 | Heidenhain Johannes Dr | Arrangement for determining the relative position of two parts |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2479446A1 (en) * | 1980-03-25 | 1981-10-02 | Soro Electro Optics | Optical grating system for displacement measurement - has cursor assembly sliding along fixed rule and uses electronic circuit to switch detector heads when grating junction detected |
EP0160153A1 (en) * | 1983-11-10 | 1985-11-06 | Vcom S.A. | Device for obtaining numerical coordinates of a point, or a group of points |
EP0209676A2 (en) * | 1985-07-23 | 1987-01-28 | Dr. Johannes Heidenhain GmbH | Length of way measuring device |
EP0209676A3 (en) * | 1985-07-23 | 1988-08-03 | Dr. Johannes Heidenhain Gmbh | Length of way measuring device |
FR2750492A1 (en) * | 1996-05-24 | 1998-01-02 | Braun Paul W | METHOD AND DEVICE FOR POSITIONING MOBILE PARTS OF MACHINES |
EP2866337A3 (en) * | 2013-08-30 | 2015-11-11 | Yamaha Hatsudoki Kabushiki Kaisha | Slider for linear conveyer and linear conveyer |
US9757797B2 (en) | 2013-08-30 | 2017-09-12 | Yamaha Hatsudoki Kabushiki Kaisha | Slider for linear conveyer and linear conveyer |
Also Published As
Publication number | Publication date |
---|---|
CH617006A5 (en) | 1980-04-30 |
ATA617576A (en) | 1982-02-15 |
FR2362364B1 (en) | 1983-09-02 |
AT376298B (en) | 1984-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |