[go: up one dir, main page]

GB1009699A - Apparatus for producing moire patterns - Google Patents

Apparatus for producing moire patterns

Info

Publication number
GB1009699A
GB1009699A GB16308/63A GB1630863A GB1009699A GB 1009699 A GB1009699 A GB 1009699A GB 16308/63 A GB16308/63 A GB 16308/63A GB 1630863 A GB1630863 A GB 1630863A GB 1009699 A GB1009699 A GB 1009699A
Authority
GB
United Kingdom
Prior art keywords
zones
pattern
shape
elements
size
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.)
Expired
Application number
GB16308/63A
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.)
AMERICAN DESIGN ENGINEERING CO
Original Assignee
AMERICAN DESIGN ENGINEERING CO
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 AMERICAN DESIGN ENGINEERING CO filed Critical AMERICAN DESIGN ENGINEERING CO
Publication of GB1009699A publication Critical patent/GB1009699A/en
Expired legal-status Critical Current

Links

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
    • G01D5/38—Forming the light into pulses by diffraction gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
    • G01B21/065—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving for stretchable materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

1,009,699. Indicating angular or linear displacement optically. AMERICAN DESIGN ENGINEERING CORPORATION. April 25, 1963 [May 14, 1962], No. 16308/63. Headings G1J and G1M. Apparatus for determining the relative position of a pair of relatively movable elements 1, 2 provided in their respective overlapping regions with graduations 3 in the form of transparent zones of equal effective size and shape, the spatial density of zones on one element being slightly different from that on the other, is arranged so that the zones 3 co-operate to define an index pattern 9 having a varying dimension in the direction substantially normal to the direction of relative movement of the elements, making the pattern 9 readily discernible. The elements may be discs relatively rotatable about their common centre and if one has 360 zones and the other 366 equally spaced circumferentially at the same radius then the pattern 10 can be used to indicate minutes against a scale 11. Linear displacement can be determined by arranging straight lines of zones on two strips at densities of e.g. 200 and 201 zones to 2 inches respectively. The shape of the pattern 9 is determined by the shape of the individual zones and its size by the size, spacing and relative densities of the zones, several examples being described.
GB16308/63A 1962-05-14 1963-04-25 Apparatus for producing moire patterns Expired GB1009699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US194606A US3217590A (en) 1962-05-14 1962-05-14 Apparatus for producing moire patterns for use in determining the relative position of a pair of elements

Publications (1)

Publication Number Publication Date
GB1009699A true GB1009699A (en) 1965-11-10

Family

ID=22718226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16308/63A Expired GB1009699A (en) 1962-05-14 1963-04-25 Apparatus for producing moire patterns

Country Status (3)

Country Link
US (1) US3217590A (en)
DE (1) DE1303561B (en)
GB (1) GB1009699A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302587B (en) * 1995-06-24 1998-04-08 British Aerospace Measuring relative deflection between two adjacent components

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE408734B (en) * 1977-09-09 1979-07-02 Bergkvist Lars A DEVICE FOR RASES INTENDED TO CREATE A MOIRE MONSTER
US4247769A (en) * 1978-12-21 1981-01-27 The Charles Stark Draper Laboratory, Inc. Apparatus for measuring angular and linear displacements
GB8821837D0 (en) * 1988-09-16 1988-10-19 Renishaw Plc Scale for use with opto-electronic scale reading apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415627A (en) * 1919-11-07 1922-05-09 Howard S Levy Precision instrument
US2247076A (en) * 1939-08-25 1941-06-24 Gen Electric Tuning instrument
US2246001A (en) * 1940-04-01 1941-06-17 Associated Patentees Inc Light modulator
US2256170A (en) * 1941-01-24 1941-09-16 Associated Patentees Inc Propeller synchronizing and other instruments
US2280038A (en) * 1941-10-17 1942-04-14 Associated Patentees Inc Turn indicator
US2451972A (en) * 1945-12-03 1948-10-19 Associated Patentees Inc Optical indicator having cooperating grids
US2475490A (en) * 1948-03-20 1949-07-05 Gelardin Albert Direct reading, visual index forming intersection pattern thread and line counter
US2559915A (en) * 1949-12-28 1951-07-10 Gaebel Arthur Henry Half-tone screen determiner
US2817266A (en) * 1954-04-13 1957-12-24 Gelardin Albert Direct reading, visual index forming, intersection pattern thread and line counter
US2788519A (en) * 1954-12-10 1957-04-09 Telecomputing Corp Position indicating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302587B (en) * 1995-06-24 1998-04-08 British Aerospace Measuring relative deflection between two adjacent components

Also Published As

Publication number Publication date
US3217590A (en) 1965-11-16
DE1303561B (en) 1972-02-03

Similar Documents

Publication Publication Date Title
AT349558B (en) MEASURING ARRANGEMENT IN A MACHINE WITH AT LEAST ONE ROTATING MACHINE PART
ATA544979A (en) MEASURING ARRANGEMENT WITH A PRESSURE GAUGE FOR MEASURING THE PRESSURE OF HOT MEDIA
BE849768A (en) OPTICAL THICKNESS MEASUREMENT GAUGE
SE407416B (en) WEAKLY CROSS-BONDED HYDROGEL COPIES CONCERNING AN N-VINYLLACTAM TOGETHER WITH A HYDROPHOB ACRYLIC MONOMER AND THEIR PREPARATION
BR7706627A (en) COPY PRODUCTION AND WORD PROCESSING MACHINE
BE884354A (en) PRESSURE RELIEF APPARATUS FOR NUCLEAR REACTORS IN THE EVENT OF DISTURBANCE
GB1009699A (en) Apparatus for producing moire patterns
US2418436A (en) Identifying minute measurement
AT362168B (en) MEASURING ARRANGEMENT WITH INDUCTIVE SPACER
JPS5310225A (en) Recorder
GB1192513A (en) Improvements in and relating to Linear Measurement Scales
DE3679606D1 (en) POSITION MEASURING DEVICE WITH OPTICAL GRIDS.
JPS5320865A (en) Relative position deviation observing apparatus of patterns
JPS52110684A (en) Measuring apparatus for refractive index distribution
ES320322A1 (en) Improvements in the construction of moderating structures of a nuclear reactor. (Machine-translation by Google Translate, not legally binding)
Ranganayakamma et al. Mismatches applied to Ligtenberg's reflective moiré method
GB1353633A (en) Moire fringe device and method of determining displacements using moire fringes
IT1062424B (en) SUPPORTED ZIEGLER CATALYSTS WITH RESTRICTED GRANULOMETRIC DISTRIBUTION AND PROCEDURE FOR THEIR PRODUCTION
USD236062S (en) Best available copy
JPS5275482A (en) Fluid refractive index measuring apparatus
JPS5267681A (en) Fluid refractive index measuring apparatus
JPS56163412A (en) Phase adjusting device of moire pattern
GB1073994A (en) Improvements in or relating to chart position indicating apparatus
FR1458629A (en) Method for producing plates with contact pads and plates thus produced
FR2307309A1 (en) Accountancy cumulative data display - consists of series of rotable discs which present combination of data