GB637311A - Improvements in or relating to tachometers - Google Patents
Improvements in or relating to tachometersInfo
- Publication number
- GB637311A GB637311A GB1323547A GB1323547A GB637311A GB 637311 A GB637311 A GB 637311A GB 1323547 A GB1323547 A GB 1323547A GB 1323547 A GB1323547 A GB 1323547A GB 637311 A GB637311 A GB 637311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- coils
- frequency
- permanent magnet
- circuit
- 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
- 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
- G01P3/487—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 delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
637,311. Machines with permanent magnets. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and HAND, H. E. May 16, 1947, No. 13235. [Class 35] [Also in Group XXXVIII] A permanent magnet or inductor member rotating yith a part, the speed of which is to be indicated or recorded, co-operates with stationary angularly spaced coils whereby interrupted E.M.F.s are produced and are applied to a frequency responsive device, the number of coils in circuit being variable according to the range of speed to be measured to bring the frequency within a comparatively limited range. As shown, a frequency indicator or recorder 6, which may be calibrated for speed, is fed through a thyratron circuit by a selected number of coils 3 co-operating with a permanent magnet 2 carried by the rotor 1 of a gas turbine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1323547A GB637311A (en) | 1947-05-16 | 1947-05-16 | Improvements in or relating to tachometers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1323547A GB637311A (en) | 1947-05-16 | 1947-05-16 | Improvements in or relating to tachometers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB637311A true GB637311A (en) | 1950-05-17 |
Family
ID=10019294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1323547A Expired GB637311A (en) | 1947-05-16 | 1947-05-16 | Improvements in or relating to tachometers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB637311A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2175538A1 (en) * | 1972-03-13 | 1973-10-26 | Felix Jean | |
DE3130338A1 (en) * | 1980-08-26 | 1982-04-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi | Revolution sensor for a swash-plate compressor |
US4361288A (en) * | 1980-04-04 | 1982-11-30 | Toyota Jidosha Kogyo Kabushiki Kaisha | Rotating speed detecting device of a rotary type electrostatic spray painting device |
US4924674A (en) * | 1987-09-30 | 1990-05-15 | Isuzu Motors Limited | Turbocharger with rotary electric machine |
US5090236A (en) * | 1989-09-28 | 1992-02-25 | Riv-Skf Officine Di Villar Persosa S.P.A. | Phonic element for speed sensing bearing assembly |
-
1947
- 1947-05-16 GB GB1323547A patent/GB637311A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2175538A1 (en) * | 1972-03-13 | 1973-10-26 | Felix Jean | |
US4361288A (en) * | 1980-04-04 | 1982-11-30 | Toyota Jidosha Kogyo Kabushiki Kaisha | Rotating speed detecting device of a rotary type electrostatic spray painting device |
DE3130338A1 (en) * | 1980-08-26 | 1982-04-29 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi | Revolution sensor for a swash-plate compressor |
US4924674A (en) * | 1987-09-30 | 1990-05-15 | Isuzu Motors Limited | Turbocharger with rotary electric machine |
US5090236A (en) * | 1989-09-28 | 1992-02-25 | Riv-Skf Officine Di Villar Persosa S.P.A. | Phonic element for speed sensing bearing assembly |
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