BE757316A - Dispositif de detection d'un seuil de frequence - Google Patents
Dispositif de detection d'un seuil de frequenceInfo
- Publication number
- BE757316A BE757316A BE757316DA BE757316A BE 757316 A BE757316 A BE 757316A BE 757316D A BE757316D A BE 757316DA BE 757316 A BE757316 A BE 757316A
- Authority
- BE
- Belgium
- Prior art keywords
- detection device
- frequency threshold
- threshold detection
- frequency
- threshold
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 1
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
-
- 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
- G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
- G01P1/106—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the time duration between two impulses with a reference time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6940380A FR2067968A5 (it) | 1969-11-24 | 1969-11-24 | |
| FR6942954A FR2070639A6 (it) | 1969-11-24 | 1969-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE757316A true BE757316A (fr) | 1971-03-16 |
Family
ID=26215390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE757316D BE757316A (fr) | 1969-11-24 | Dispositif de detection d'un seuil de frequence |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE757316A (it) |
| DE (1) | DE2057772A1 (it) |
| ES (1) | ES385446A1 (it) |
| FR (2) | FR2067968A5 (it) |
| IT (1) | IT941027B (it) |
| NL (1) | NL7017063A (it) |
-
0
- BE BE757316D patent/BE757316A/xx unknown
-
1969
- 1969-11-24 FR FR6940380A patent/FR2067968A5/fr not_active Expired
- 1969-12-11 FR FR6942954A patent/FR2070639A6/fr not_active Expired
-
1970
- 1970-10-29 IT IT8955470A patent/IT941027B/it active
- 1970-11-11 ES ES385446A patent/ES385446A1/es not_active Expired
- 1970-11-20 NL NL7017063A patent/NL7017063A/xx unknown
- 1970-11-24 DE DE19702057772 patent/DE2057772A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES385446A1 (es) | 1973-09-01 |
| IT941027B (it) | 1973-03-01 |
| DE2057772A1 (de) | 1971-06-03 |
| FR2070639A6 (it) | 1971-09-10 |
| FR2067968A5 (it) | 1971-08-20 |
| NL7017063A (it) | 1971-05-26 |
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