IT8121559A0 - Dispositivo di misura della frequenza di una corrente elettrica rappresentativa di una grandezza variabile. - Google Patents
Dispositivo di misura della frequenza di una corrente elettrica rappresentativa di una grandezza variabile.Info
- Publication number
- IT8121559A0 IT8121559A0 IT8121559A IT2155981A IT8121559A0 IT 8121559 A0 IT8121559 A0 IT 8121559A0 IT 8121559 A IT8121559 A IT 8121559A IT 2155981 A IT2155981 A IT 2155981A IT 8121559 A0 IT8121559 A0 IT 8121559A0
- Authority
- IT
- Italy
- Prior art keywords
- measuring
- frequency
- electric current
- variable quantity
- current representative
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/20—Induction instruments, e.g. Ferraris instruments
-
- 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
- G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
- G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8010911A FR2482730A1 (fr) | 1980-05-14 | 1980-05-14 | Dispositif de mesure de la frequence d'un courant electrique representative d'une grandeur variable |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8121559A0 true IT8121559A0 (it) | 1981-05-07 |
IT1138331B IT1138331B (it) | 1986-09-17 |
Family
ID=9242017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21559/81A IT1138331B (it) | 1980-05-14 | 1981-05-07 | Dispositivo di misura della frequenza di una corrente elettrica rappresentativa di una grandezza variabile |
Country Status (8)
Country | Link |
---|---|
US (1) | US4371834A (it) |
AR (1) | AR227186A1 (it) |
DE (1) | DE3118991A1 (it) |
ES (1) | ES502468A0 (it) |
FR (1) | FR2482730A1 (it) |
GB (1) | GB2076156B (it) |
IT (1) | IT1138331B (it) |
MX (1) | MX149302A (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3419100A1 (de) * | 1984-05-23 | 1985-11-28 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Motor |
GB2189322B (en) * | 1986-04-18 | 1990-03-14 | Lucas Electrical Electronics A | Composite rotary component |
IT208131Z2 (it) * | 1986-10-03 | 1988-04-11 | Veglia Borletti Srl | Dispositivo tachimetrico pilotato da un motore elettrico |
JPH0660908B2 (ja) * | 1988-01-22 | 1994-08-10 | 矢崎総業株式会社 | クロスコイル形計器の駆動装置 |
DE3839547A1 (de) * | 1988-11-24 | 1990-05-31 | Vdo Schindling | Wirbelstrommesswerk |
US5698974A (en) * | 1995-02-13 | 1997-12-16 | Delco Electronics Corporation | Robust gauge driving circuit with pulse modulated input |
CN104914270A (zh) * | 2015-06-08 | 2015-09-16 | 无锡吉兴汽车声学部件科技有限公司 | 快速获取汽车发动机转速的测试方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922445C (de) * | 1943-07-11 | 1955-01-17 | Westfaelische Metall Ind G M B | Elektrische Antriebseinrichtung fuer Wirbelstromtachometer |
GB973996A (en) | 1959-12-02 | 1964-11-04 | Lucas Industries Ltd | Means for imparting angular movement to an indicator or rotor |
US3299353A (en) * | 1962-06-08 | 1967-01-17 | King Seeley Thermos Co | Electrical speedometer utilizing unsymmetrically positioned field coils |
US3335366A (en) * | 1964-10-02 | 1967-08-08 | Motorola Inc | Electronic speedometer with transistor amplifier |
GB1367465A (en) * | 1970-11-20 | 1974-09-18 | Lumenition Ltd | Device for measuring the speed of a rotating shaft |
DE2117031A1 (de) * | 1971-04-07 | 1972-10-26 | Knab Elektronik Inh. Anton Knab, 80OO München | Steuerelektronik, insbesondere für einen Schrittmotor |
FR2147783B1 (it) * | 1971-06-17 | 1974-06-21 | Mecanique Ind Int | |
DE2321890B2 (de) * | 1973-04-30 | 1975-03-27 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung für einen elektrischen Schrittmotor |
US3946311A (en) * | 1973-06-11 | 1976-03-23 | Stewart-Warner Corporation | Air core gauge with expanded pointer range |
JPS5332609Y2 (it) * | 1974-02-26 | 1978-08-12 | ||
DE2709412A1 (de) * | 1977-03-04 | 1978-09-07 | Max Baermann | Wirbelstromtachometer mit temperaturkompensation |
IT1107302B (it) * | 1978-04-21 | 1985-11-25 | Borletti Spa | Dispositivo tachimetrico pilotato da un motore elettrico |
-
1980
- 1980-05-14 FR FR8010911A patent/FR2482730A1/fr active Granted
-
1981
- 1981-05-07 IT IT21559/81A patent/IT1138331B/it active
- 1981-05-12 ES ES502468A patent/ES502468A0/es active Granted
- 1981-05-12 GB GB8114538A patent/GB2076156B/en not_active Expired
- 1981-05-13 AR AR285308A patent/AR227186A1/es active
- 1981-05-13 DE DE19813118991 patent/DE3118991A1/de not_active Withdrawn
- 1981-05-18 US US06/264,396 patent/US4371834A/en not_active Expired - Fee Related
- 1981-06-14 MX MX187296A patent/MX149302A/es unknown
Also Published As
Publication number | Publication date |
---|---|
IT1138331B (it) | 1986-09-17 |
US4371834A (en) | 1983-02-01 |
MX149302A (es) | 1983-10-13 |
GB2076156B (en) | 1984-06-27 |
ES8204176A1 (es) | 1982-04-01 |
DE3118991A1 (de) | 1982-04-29 |
AR227186A1 (es) | 1982-09-30 |
FR2482730B1 (it) | 1983-09-30 |
FR2482730A1 (fr) | 1981-11-20 |
GB2076156A (en) | 1981-11-25 |
ES502468A0 (es) | 1982-04-01 |
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