ES341485A1 - Improvements in and relating to Measuring Apparatus - Google Patents
Improvements in and relating to Measuring ApparatusInfo
- Publication number
- ES341485A1 ES341485A1 ES341485A ES341485A ES341485A1 ES 341485 A1 ES341485 A1 ES 341485A1 ES 341485 A ES341485 A ES 341485A ES 341485 A ES341485 A ES 341485A ES 341485 A1 ES341485 A1 ES 341485A1
- Authority
- ES
- Spain
- Prior art keywords
- photo
- shaft
- counter
- cells
- metering wheel
- 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
- 230000000007 visual effect Effects 0.000 abstract 2
- 108010076504 Protein Sorting Signals Proteins 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/02—Input circuits
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
The distance travelled by one body relative to another is measured by a metering wheel 20, Fig. 2, on the. first body frictionally engaged with a surface 14 of the second, the metering wheel driving an output shaft 28 carrying means to generate incremental:pulses which are used to drive a visual display unit, located at a distance, indicating the number of rotations of the metering wheel and fractions thereof. The output shaft 28 may be geared to turn 60 times to each revolution of the metering wheel. The output shaft may carry a perforated disc co-operating with spaced photo-cells to provide two waveforms displaced by 90 degrees. These are squared and applied to gates to produce forward and backward signals on separate leads for application to a counter. The counter is connected to the visual display. Indicating dials are also provided on the body 12 to indicate the positions of the shafts 22 and 28. In another form the increment pulses may be derived from a ten facet mirror 95, Fig. 8, which sweeps a beam of light over ten photo-cells arranged in an arc. Each photo-cell is composed of four parts which are differently masked so that as the beam crosses each photo-cell four different amplitudes are obtained in succession. From the order of arrival of these signals the direction of motion can be ascertained to control a counter as before. The direction discriminator is controlled by a switch so that " forwards " can be in either direction as selected. In another form the rotating mirror has 100 facets and the beam sweeps over two photo-cells which are staggered so that the direction can be determined from the signal sequence. Alternatively there may be a single mirror on the end of the shaft 28, an aligned lamp and a ring of 100 photo-cells which may be masked as above to obtain an indication of direction. In another modification, a contact disc pick-up brushes provides increment and direction signals. The signal generating means may be on another shaft remote from the body 12, the remote shaft being driven from shaft 28 through a servo-system with a reversing switch. The measuring system may be embodied in a control system for a machine tool in which values read from a punched tape are compared with the contents of the counter and a leadscrew motor driven to achieve equality.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55306866A | 1966-05-26 | 1966-05-26 | |
US57177566A | 1966-08-11 | 1966-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES341485A1 true ES341485A1 (en) | 1968-07-01 |
Family
ID=27070209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES341485A Expired ES341485A1 (en) | 1966-05-26 | 1967-05-24 | Improvements in and relating to Measuring Apparatus |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH461821A (en) |
DE (1) | DE1623826A1 (en) |
ES (1) | ES341485A1 (en) |
GB (1) | GB1189323A (en) |
NL (1) | NL6705773A (en) |
SE (1) | SE315745B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1165711B (en) * | 1979-09-27 | 1987-04-22 | Olivetti & Co Spa | OPTICAL TRANSDUCER TO DETECT THE ANGULAR POSITION OF A ROTATING ORGAN COMPARED TO A FIXED STRUCTURE |
GB2152209A (en) * | 1983-12-23 | 1985-07-31 | Practical Technology Limited | Apparatus for compilation of measurement data from scaled drawings |
-
1967
- 1967-04-25 NL NL6705773A patent/NL6705773A/xx unknown
- 1967-05-09 GB GB2146067A patent/GB1189323A/en not_active Expired
- 1967-05-16 DE DE19671623826 patent/DE1623826A1/en active Pending
- 1967-05-22 CH CH714567A patent/CH461821A/en unknown
- 1967-05-23 SE SE7252/67A patent/SE315745B/xx unknown
- 1967-05-24 ES ES341485A patent/ES341485A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1189323A (en) | 1970-04-22 |
DE1623826A1 (en) | 1971-05-27 |
NL6705773A (en) | 1967-11-27 |
SE315745B (en) | 1969-10-06 |
CH461821A (en) | 1968-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1305310A (en) | ||
ES487516A1 (en) | Method of and apparatus for determining the angular position of a rotating member. | |
US4716292A (en) | Linear incremental measuring system for measuring speed and displacement | |
GB1289728A (en) | ||
ES341485A1 (en) | Improvements in and relating to Measuring Apparatus | |
US3420101A (en) | Flow velocity and direction sensor | |
US3916186A (en) | Spinning-vane shaft position encoder | |
GB1466471A (en) | Optical digistising system | |
US2829824A (en) | Automatic computer | |
US3491247A (en) | Accurate once-around pulse generating system | |
GB1498146A (en) | Indication device in plan position indication system | |
US3089133A (en) | Dynamic coders | |
GB1281339A (en) | Improvements in the measurements of twist in rotating shafts | |
GB805756A (en) | Improvements in or relating to radar systems | |
JPS545744A (en) | Rotation controller of rotary scanners | |
US3809909A (en) | System for the automatic reading of curves | |
GB1423373A (en) | Angular positions transducer apparatus | |
EP0088626A3 (en) | Apparatus for controlling the speed of a rotating body | |
FR2287681A1 (en) | Digital magnetic compass - produces digital measurement of azimuth of given direction with respect to earths magnetic field | |
GB1272907A (en) | Pulse generator for speed measuring instruments | |
US3448457A (en) | Monitoring and recording system | |
GB1347657A (en) | Magnetic compasses and similar arrangements | |
SU446889A2 (en) | The method of control of the angular position sensors | |
GB1353732A (en) | Measurement of blade vibration in rotary bladed machines | |
GB984605A (en) | Improvements in or relating to digital resolvers |