GB1439553A - Method and an apparatus for measuring relative phase shift between two pulse trains - Google Patents
Method and an apparatus for measuring relative phase shift between two pulse trainsInfo
- Publication number
- GB1439553A GB1439553A GB1501674A GB1501674A GB1439553A GB 1439553 A GB1439553 A GB 1439553A GB 1501674 A GB1501674 A GB 1501674A GB 1501674 A GB1501674 A GB 1501674A GB 1439553 A GB1439553 A GB 1439553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pick
- cups
- arm
- pulse trains
- ups
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- G01R25/08—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents by counting of standard pulses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/489—Digital circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
- G01P5/07—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes with electrical coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measuring Phase Differences (AREA)
Abstract
1439553 Measuring wind velocity and direction S G SEM-SANDBERG 4 April 1974 [16 April 1973] 15016/74 Headings G1A and G1N [Also in Division H3] In an anemometer, a permanent magnet 7 is rotated by cups 21 past a fixed pick-up 4 and a second pick-up (5)' positioned by the vane 18 to generate two trains of pulses of equal but variable frequency dependent on the wind speed and relatively phase displaced depending on the wind direction. The pick-ups may be reed switches or series-connected pairs of coils (10, 11; 8, 9), Fig. 3 (not shown). The skirt 2" rides on balls 20. In another arrangement, Fig. 1(b) (not shown), the magnet is replaced by an arm (6) the pick-ups being switches (4, 5). Photo-electric arrangements. In Fig. 5 the cups rotate a counterbalanced arm carrying light emitting diodes 15', 15" co-operating with photodiodes or photo-transistors 14', 14". Alternatively, the cups may rotate an arm (12), Fig. 4 (not shown), to interrupt U/V paths between emittersensor pairs. The frequency and phase of the pulse trains is measured digitally [Division H3].
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7305364A SE371894B (en) | 1973-04-16 | 1973-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1439553A true GB1439553A (en) | 1976-06-16 |
Family
ID=20317219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1501674A Expired GB1439553A (en) | 1973-04-16 | 1974-04-04 | Method and an apparatus for measuring relative phase shift between two pulse trains |
Country Status (5)
Country | Link |
---|---|
US (1) | USB458010I5 (en) |
JP (1) | JPS5014378A (en) |
DE (1) | DE2418328A1 (en) |
GB (1) | GB1439553A (en) |
SE (1) | SE371894B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059585A2 (en) * | 1981-03-03 | 1982-09-08 | Caterpillar Inc. | Timing angle and speed measurement of shafts |
EP0086409A1 (en) * | 1982-02-15 | 1983-08-24 | Forschungsgesellschaft Druckmaschinen e.V. | Method and device for the high-precision measuring of the phase position and phase shift of two pulse trains |
EP0121732A1 (en) * | 1983-03-03 | 1984-10-17 | Wild Leitz Ag | Process for digital phase measurement |
CN116413474A (en) * | 2023-06-12 | 2023-07-11 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Pulling force type flow velocity and flow direction detection device and method |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5391052U (en) * | 1976-12-25 | 1978-07-25 | ||
WO1980001416A1 (en) * | 1979-01-08 | 1980-07-10 | J Hansen | A device for metering the angular position of a direction indicator |
FR2467405A1 (en) * | 1979-10-15 | 1981-04-17 | Majoni Claude | Wind direction indicator operating from anemometer - has rotating angular position detector and fixed position sensor with transmitter providing pulse train proportional to wind speed |
US4400865A (en) * | 1980-07-08 | 1983-08-30 | International Business Machines Corporation | Self-aligned metal process for integrated circuit metallization |
DE3808977C2 (en) * | 1988-03-17 | 1993-10-07 | Matec Mes Und Automatisierungs | Device for measuring an angular misalignment |
US5231876A (en) * | 1991-05-17 | 1993-08-03 | Peet Bros. Company, Inc. | Method and apparatus for wind speed and direction measurement |
-
1973
- 1973-04-16 SE SE7305364A patent/SE371894B/xx unknown
-
1974
- 1974-04-04 US US45801074 patent/USB458010I5/en active Pending
- 1974-04-04 GB GB1501674A patent/GB1439553A/en not_active Expired
- 1974-04-16 JP JP49042653A patent/JPS5014378A/ja active Pending
- 1974-04-16 DE DE2418328A patent/DE2418328A1/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0059585A2 (en) * | 1981-03-03 | 1982-09-08 | Caterpillar Inc. | Timing angle and speed measurement of shafts |
EP0059585B1 (en) * | 1981-03-03 | 1989-04-05 | Caterpillar Inc. | Timing angle and speed measurement of shafts |
EP0086409A1 (en) * | 1982-02-15 | 1983-08-24 | Forschungsgesellschaft Druckmaschinen e.V. | Method and device for the high-precision measuring of the phase position and phase shift of two pulse trains |
EP0121732A1 (en) * | 1983-03-03 | 1984-10-17 | Wild Leitz Ag | Process for digital phase measurement |
CN116413474A (en) * | 2023-06-12 | 2023-07-11 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Pulling force type flow velocity and flow direction detection device and method |
CN116413474B (en) * | 2023-06-12 | 2023-09-01 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Pulling force type flow velocity and flow direction detection device and method |
Also Published As
Publication number | Publication date |
---|---|
SE371894B (en) | 1974-12-02 |
DE2418328A1 (en) | 1974-10-31 |
JPS5014378A (en) | 1975-02-14 |
USB458010I5 (en) | 1976-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1439553A (en) | Method and an apparatus for measuring relative phase shift between two pulse trains | |
GB1528132A (en) | Remote measurement systems | |
US4160199A (en) | Line or pattern following system | |
IL58542A (en) | Apparatus for measuring s/n by phase jitter of digital signals | |
GB1327559A (en) | Speed measuring device for motor vehicles | |
US4673810A (en) | Increment sensing with three beam mark detection | |
DE3171333D1 (en) | Evaluation circuit for a digital rotational speed transducer | |
JPS6423453A (en) | Rotation controller for rotary head | |
GB1453728A (en) | Device for detecting degree of opening of a throttle valve | |
GB1281339A (en) | Improvements in the measurements of twist in rotating shafts | |
JPS552569A (en) | Indexing mechanism for works | |
GB1182027A (en) | Improvements in or relating to tachometer circuits | |
DE69421992D1 (en) | Device for optically measuring the speed of rotation of an object | |
JPS56160658A (en) | Magnetic detection system for engine revolution sensor device | |
JPS5734453A (en) | Wheel velocity sensor | |
JPS5432371A (en) | Rotating speed detector | |
JPS5733358A (en) | Vehicle speed sensor | |
FR2387453A1 (en) | Electromagnetic revolution counter for machine tools - has magnetic circuit housed in disc which is mounted on shaft, and has bridge network to generate pulses for comparator | |
SU662797A1 (en) | Device for continuous monitoring of the edge of rolled stock | |
GB1315442A (en) | Tachometers | |
SU605257A1 (en) | Device for measuring magnetic tape speed | |
GB1326329A (en) | Sensing device for measuring the speed of rotation of drilling turbine | |
SU1422066A1 (en) | Device for measuring angular vibrations of motor vehicle wheel | |
JPS56168562A (en) | Digital high-speed tachometer | |
SU1269029A1 (en) | Device for measuring difference of rotational speeds of shafts |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |