GB991873A - Equipment for indicating the amount of the displacement of a moving part - Google Patents
Equipment for indicating the amount of the displacement of a moving partInfo
- Publication number
- GB991873A GB991873A GB45475/62A GB4547562A GB991873A GB 991873 A GB991873 A GB 991873A GB 45475/62 A GB45475/62 A GB 45475/62A GB 4547562 A GB4547562 A GB 4547562A GB 991873 A GB991873 A GB 991873A
- Authority
- GB
- United Kingdom
- Prior art keywords
- displacement
- window
- scale
- imaged
- photo
- 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
Links
- 238000006073 displacement reaction Methods 0.000 title abstract 6
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
991, 873. Photo-electric positions determination; optical pointers. M. HENSOLDT UND SOHNE, OPTISCHE WERKE A. G. Dec. 3, 1962 [Dec. 4, 1961; March 15, 1962 (2); Sept. 22, 1962], No. 45475/62. Headings G1A and G1M. [Also in Division G4] A displacement measuring system is characterized in that a first scale is imaged either on to a second fixed scale, or on to itself or on to a window by an optical system including a chain of reflecting surfaces moved in accordance with the displacement that is to be determined. As described a millimetre scale 201, Fig. 20 is imaged on to a window 210 carrying an index mark 212<SP>1</SP>, the light path including one of a chain of reflecting prisms 204 attached to a glass plate 205 whose displacement-in the direction of arrow 206-is being measured. The arrangement operates as follows. A "coarse" indication of a displacement of plate 205 is provided by a rack and pinion controlled indicator 216 which projects its reading via a half-silvered mirror 213 on to the window 210 and a "fine" indication of the displacement is provided by a micrometer screw 211 which is rotated by hand until the image of scale 201 in the window is bought to a position where one of its graduations again registers with the index mark 212<SP>1</SP>. A modification using two phase-displaced chains of prisms on the displaceable plate is described (Figs. 22, 23 and 24 not shown). A number of photo-electric modifications are described, the majority employ fringe counting techniques (see Division G4) but one Figs. 28, 29, and 30 uses a sinusoidally shaped curve which is imaged on to three cells 404, 405, 406 spaced by 120 degrees, the resulting output signals controlling a rotary indicator Fig. 29, complete revolutions of which are counted by a further photo-electric system Fig. 30, and another Fig. 37 uses a mechanically oscillated receiving grating so that displacement of the mirror system (not shown in Fig. 37) manifests itself as a change in phase of the light that passes the grating.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH44311A DE1226797B (en) | 1961-12-04 | 1961-12-04 | Photoelectric device with optical grids as display means for displaying the change in position of a moving part |
| DEH0055156 | 1962-03-15 | ||
| DEH0046987 | 1962-09-22 | ||
| DE1966H0055155 DE1945440U (en) | 1966-04-09 | 1966-04-09 | PACKAGING AND SHOWS, ESPECIALLY FOR EGG WARMER. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991873A true GB991873A (en) | 1965-05-12 |
Family
ID=27437023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB45475/62A Expired GB991873A (en) | 1961-12-04 | 1962-12-03 | Equipment for indicating the amount of the displacement of a moving part |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB991873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3598493A (en) * | 1969-06-30 | 1971-08-10 | Ibm | Optical graduated rule of transparent material |
| GB2338549A (en) * | 1998-06-02 | 1999-12-22 | Ching Shun Wang | A Rotary Encoder |
-
1962
- 1962-12-03 GB GB45475/62A patent/GB991873A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3598493A (en) * | 1969-06-30 | 1971-08-10 | Ibm | Optical graduated rule of transparent material |
| GB2338549A (en) * | 1998-06-02 | 1999-12-22 | Ching Shun Wang | A Rotary Encoder |
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