DE2642645A1 - Digitales tachometer zur bestimmung und anzeige der drehzahl einer sich drehenden einrichtung - Google Patents
Digitales tachometer zur bestimmung und anzeige der drehzahl einer sich drehenden einrichtungInfo
- Publication number
- DE2642645A1 DE2642645A1 DE19762642645 DE2642645A DE2642645A1 DE 2642645 A1 DE2642645 A1 DE 2642645A1 DE 19762642645 DE19762642645 DE 19762642645 DE 2642645 A DE2642645 A DE 2642645A DE 2642645 A1 DE2642645 A1 DE 2642645A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- counting
- counter
- frequency
- pulses
- 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.)
- Ceased
Links
- 238000005259 measurement Methods 0.000 claims description 12
- 230000003111 delayed effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000000737 periodic effect Effects 0.000 description 10
- 230000001133 acceleration Effects 0.000 description 3
- 101000851593 Homo sapiens Separin Proteins 0.000 description 1
- 102100036750 Separin Human genes 0.000 description 1
- 235000020291 caffè lungo Nutrition 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT69357/75A IT1047443B (it) | 1975-09-23 | 1975-09-23 | Tachimetro digitale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2642645A1 true DE2642645A1 (de) | 1977-03-24 |
Family
ID=11311959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762642645 Ceased DE2642645A1 (de) | 1975-09-23 | 1976-09-22 | Digitales tachometer zur bestimmung und anzeige der drehzahl einer sich drehenden einrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4056778A (enExample) |
| JP (1) | JPS5253475A (enExample) |
| DE (1) | DE2642645A1 (enExample) |
| FR (1) | FR2325936A1 (enExample) |
| GB (1) | GB1548726A (enExample) |
| IT (1) | IT1047443B (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933516A1 (de) * | 1979-08-18 | 1981-03-26 | Robert Bosch Gmbh, 70469 Stuttgart | Einrichtung zur drehzahlerfassung und winkelsegmenterkennung einer welle, insbesondere der kurbelwelle einer brennkraftmaschine |
| DE3446611A1 (de) * | 1983-12-20 | 1985-07-11 | Mitsubishi Denki K.K., Tokio/Tokyo | Umlaufgeschwindigkeitsdetektor |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2730699A1 (de) * | 1977-07-07 | 1979-01-18 | Vdo Schindling | Einrichtung zur anzeige einer mechanischen messgroesse, insbesondere der geschwindigkeit eines kraftfahrzeugs |
| US4181962A (en) * | 1978-02-27 | 1980-01-01 | The United States Of America As Represented By The Secretary Of The Navy | Digital programmable timing device |
| US4219875A (en) * | 1978-05-05 | 1980-08-26 | Honeywell Inc. | Digital event input circuit for a computer based process control system |
| US4181883A (en) * | 1978-07-03 | 1980-01-01 | The Economy Engine Company | Hourmeter-tachometer |
| JPS5522163A (en) * | 1978-08-07 | 1980-02-16 | Hitachi Ltd | Engine rpm detector |
| US4257005A (en) * | 1979-05-23 | 1981-03-17 | Hall David S | Fixed interval variable period pulse rate measuring method and system and tachometer system using same |
| US4255793A (en) * | 1979-06-11 | 1981-03-10 | The United States Of America As Represented By The United States Department Of Energy | Apparatus for generating nonlinear pulse patterns |
| US4267575A (en) * | 1979-07-09 | 1981-05-12 | The Bendix Corporation | Wheel speed signal-producing system for skid control |
| US4420814A (en) * | 1980-06-27 | 1983-12-13 | Nippon Air Brake Co., Ltd. | Wheel speed measuring circuit |
| JPS5770936A (en) * | 1980-10-22 | 1982-05-01 | Hitachi Ltd | Electronic control unit for internal combustion engine |
| US4434470A (en) | 1981-02-09 | 1984-02-28 | The Bendix Corporation | Speed measurement system with means for calculating the exact time period of a known quantity of speed pulses |
| US4648104A (en) * | 1983-09-27 | 1987-03-03 | Nippon Seiki Corporation | Pulse counting and pulse rate indicating device responsive to abrupt pulse rate change to accurately indicate current rate |
| FR2578369B1 (fr) * | 1985-03-01 | 1987-04-24 | Jaeger | Circuit multiplicateur de frequences et dispositif de mesure de la vitesse de deplacement d'un vehicule incorporant un tel circuit |
| FR2583166B1 (fr) * | 1985-06-07 | 1988-04-15 | Jaeger | Dispositif de mesure de la vitesse de deplacement d'un vehicule |
| GB2217536B (en) * | 1988-04-21 | 1992-05-13 | Marconi Instruments Ltd | Frequency counter |
| US5740083A (en) * | 1996-04-01 | 1998-04-14 | Ford Motor Company | Delta time measurement circuit for determining parameter derivatives of a rotational velocity sensor signal |
| JP4650552B2 (ja) * | 2008-10-14 | 2011-03-16 | ソニー株式会社 | 電子機器、コンテンツ推薦方法及びプログラム |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3524131A (en) * | 1967-09-25 | 1970-08-11 | John A Mcwaid | High speed frequency computing apparatus |
| US3611134A (en) * | 1969-04-30 | 1971-10-05 | Ibm | Apparatus for automatically measuring time intervals using multiple interpolations of any fractional time interval |
| US3603769A (en) * | 1969-11-03 | 1971-09-07 | Bio Data Inc | Rate detecting apparatus |
| US3617715A (en) * | 1970-05-04 | 1971-11-02 | Allen Bradley Co | Automatic acceleration/deceleration for a numerical controlled machine tool |
| US3753111A (en) * | 1971-07-09 | 1973-08-14 | S Denbnovetsky | Method for measuring time intervals and apparatus |
| GB1415342A (en) * | 1971-11-10 | 1975-11-26 | Philips Electronic Associated | Speed measurement and indication apparatus |
| US3906346A (en) * | 1972-12-26 | 1975-09-16 | Us Navy | Precision time interval comparator |
| US3840174A (en) * | 1973-05-29 | 1974-10-08 | Rca Corp | Precision digital interpolator |
-
1975
- 1975-09-23 IT IT69357/75A patent/IT1047443B/it active
-
1976
- 1976-09-13 US US05/722,462 patent/US4056778A/en not_active Expired - Lifetime
- 1976-09-17 GB GB38682/76A patent/GB1548726A/en not_active Expired
- 1976-09-21 FR FR7628324A patent/FR2325936A1/fr active Granted
- 1976-09-22 JP JP51114308A patent/JPS5253475A/ja active Pending
- 1976-09-22 DE DE19762642645 patent/DE2642645A1/de not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933516A1 (de) * | 1979-08-18 | 1981-03-26 | Robert Bosch Gmbh, 70469 Stuttgart | Einrichtung zur drehzahlerfassung und winkelsegmenterkennung einer welle, insbesondere der kurbelwelle einer brennkraftmaschine |
| DE3446611A1 (de) * | 1983-12-20 | 1985-07-11 | Mitsubishi Denki K.K., Tokio/Tokyo | Umlaufgeschwindigkeitsdetektor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2325936B1 (enExample) | 1980-03-28 |
| GB1548726A (en) | 1979-07-18 |
| US4056778A (en) | 1977-11-01 |
| IT1047443B (it) | 1980-09-10 |
| FR2325936A1 (fr) | 1977-04-22 |
| JPS5253475A (en) | 1977-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8131 | Rejection |