JPS549915B2 - - Google Patents
Info
- Publication number
- JPS549915B2 JPS549915B2 JP11223872A JP11223872A JPS549915B2 JP S549915 B2 JPS549915 B2 JP S549915B2 JP 11223872 A JP11223872 A JP 11223872A JP 11223872 A JP11223872 A JP 11223872A JP S549915 B2 JPS549915 B2 JP S549915B2
- Authority
- JP
- Japan
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/08—Output circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
-
- 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
- G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
-
- 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)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU695471 | 1971-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4859876A JPS4859876A (en:Method) | 1973-08-22 |
| JPS549915B2 true JPS549915B2 (en:Method) | 1979-04-28 |
Family
ID=3697557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11223872A Expired JPS549915B2 (en:Method) | 1971-11-10 | 1972-11-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3863153A (en:Method) |
| JP (1) | JPS549915B2 (en:Method) |
| FR (1) | FR2159455B1 (en:Method) |
| GB (1) | GB1415342A (en:Method) |
| IT (1) | IT975472B (en:Method) |
| NL (1) | NL7215199A (en:Method) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000465A (en) * | 1974-05-04 | 1976-12-28 | Shimpo Kogyo Kabushiki Kaisha | Digital tachometer |
| IT1047443B (it) * | 1975-09-23 | 1980-09-10 | Fiat Spa | Tachimetro digitale |
| US4007419A (en) * | 1975-10-02 | 1977-02-08 | Richard Jasmine | Digital bicycle speedometer-odometer |
| US4158172A (en) * | 1977-12-05 | 1979-06-12 | Ford Motor Company | Digital speedometer for indicating velocity in at least two selectable units of measurement |
| JPS5522163A (en) * | 1978-08-07 | 1980-02-16 | Hitachi Ltd | Engine rpm detector |
| FR2439385A1 (fr) * | 1978-10-17 | 1980-05-16 | Jaeger | Perfectionnements a la commande des dispositifs d'affichage a tambours electro-magnetiques |
| JPS5631653A (en) * | 1979-08-24 | 1981-03-31 | Nissan Motor Co Ltd | Digital display type tachometer for automobile |
| US4350952A (en) * | 1979-11-05 | 1982-09-21 | Outboard Marine Corporation | Digital read-out meter circuit and tachometer with variable meter update rate using an up/down counter means |
| US4484137A (en) * | 1982-04-15 | 1984-11-20 | General Electric Company | Wide dynamic range shaft speed sensor |
| US4519091A (en) * | 1983-08-03 | 1985-05-21 | Hewlett-Packard Company | Data capture in an uninterrupted counter |
| JP2871787B2 (ja) * | 1990-02-13 | 1999-03-17 | 日本電気株式会社 | 積算カウンタ |
| US8008908B2 (en) * | 2007-06-25 | 2011-08-30 | Allegro Microsystems, Inc. | Low power magnetic field sensor |
| US8222888B2 (en) * | 2008-09-29 | 2012-07-17 | Allegro Microsystems, Inc. | Micro-power magnetic switch |
| JP5725609B2 (ja) * | 2011-04-05 | 2015-05-27 | 株式会社Ｉｈｉエアロスペース | モータの制御装置及び制御方法 |
| CN107436363B (zh) * | 2017-06-30 | 2019-10-18 | 南京中车浦镇海泰制动设备有限公司 | 一种轨道交通车辆速度动态测量方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1445818A (fr) * | 1965-06-29 | 1966-07-15 | Ibm | Système d'échantillonnage pour indicateurs binaires |
| GB1248904A (en) * | 1967-10-16 | 1971-10-06 | Smiths Industries Ltd | Improvements in or relating to digital instruments |
| US3525044A (en) * | 1968-02-28 | 1970-08-18 | Vapor Corp | Digital speed and control system |
| US3683159A (en) * | 1969-01-21 | 1972-08-08 | Diversified Electronics Co Inc | Electronic counter and storage apparatus |
| US3705296A (en) * | 1970-02-24 | 1972-12-05 | Iwatsu Electric Co Ltd | Count display system |
-
1972
- 1972-11-07 IT IT70487/72A patent/IT975472B/it active
- 1972-11-07 GB GB5130672A patent/GB1415342A/en not_active Expired - Lifetime
- 1972-11-10 FR FR7239900A patent/FR2159455B1/fr not_active Expired - Lifetime
- 1972-11-10 US US305380A patent/US3863153A/en not_active Expired - Lifetime
- 1972-11-10 NL NL7215199A patent/NL7215199A/xx unknown
- 1972-11-10 JP JP11223872A patent/JPS549915B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4859876A (en:Method) | 1973-08-22 |
| FR2159455A1 (en:Method) | 1973-06-22 |
| US3863153A (en) | 1975-01-28 |
| GB1415342A (en) | 1975-11-26 |
| NL7215199A (en:Method) | 1973-05-14 |
| IT975472B (it) | 1974-07-20 |
| FR2159455B1 (en:Method) | 1976-08-20 |