FR2260691B1 - - Google Patents
Info
- Publication number
- FR2260691B1 FR2260691B1 FR7504367A FR7504367A FR2260691B1 FR 2260691 B1 FR2260691 B1 FR 2260691B1 FR 7504367 A FR7504367 A FR 7504367A FR 7504367 A FR7504367 A FR 7504367A FR 2260691 B1 FR2260691 B1 FR 2260691B1
- Authority
- FR
- France
- 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
- 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
-
- 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)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB665574A GB1446501A (en) | 1974-02-13 | 1974-02-13 | Motor speed monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2260691A1 FR2260691A1 (US06265458-20010724-C00033.png) | 1975-09-05 |
| FR2260691B1 true FR2260691B1 (US06265458-20010724-C00033.png) | 1981-05-22 |
Family
ID=9818394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7504367A Expired FR2260691B1 (US06265458-20010724-C00033.png) | 1974-02-13 | 1975-02-12 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2506131A1 (US06265458-20010724-C00033.png) |
| FR (1) | FR2260691B1 (US06265458-20010724-C00033.png) |
| GB (1) | GB1446501A (US06265458-20010724-C00033.png) |
| IT (1) | IT1031681B (US06265458-20010724-C00033.png) |
-
1974
- 1974-02-13 GB GB665574A patent/GB1446501A/en not_active Expired
-
1975
- 1975-02-12 IT IT2019875A patent/IT1031681B/it active
- 1975-02-12 FR FR7504367A patent/FR2260691B1/fr not_active Expired
- 1975-02-13 DE DE19752506131 patent/DE2506131A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| IT1031681B (it) | 1979-05-10 |
| DE2506131A1 (de) | 1975-08-21 |
| GB1446501A (en) | 1976-08-18 |
| FR2260691A1 (US06265458-20010724-C00033.png) | 1975-09-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |