IT945561B - Perfezionamento nei dispositivi di misura della frequenza di impulsi elettrici in particolare per contragiri o tachimetri - Google Patents
Perfezionamento nei dispositivi di misura della frequenza di impulsi elettrici in particolare per contragiri o tachimetriInfo
- Publication number
- IT945561B IT945561B IT54884/71A IT5488471A IT945561B IT 945561 B IT945561 B IT 945561B IT 54884/71 A IT54884/71 A IT 54884/71A IT 5488471 A IT5488471 A IT 5488471A IT 945561 B IT945561 B IT 945561B
- Authority
- IT
- Italy
- Prior art keywords
- speedometers
- contractors
- improvement
- measuring
- frequency
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
- G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values
- G01R13/405—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs
- G01R13/406—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values using a plurality of active, i.e. light emitting, e.g. electro-luminescent elements, i.e. bar graphs representing measured value by a dot or a single line
-
- 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
- G01P3/481—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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Indicating Measured Values (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712102567 DE2102567B2 (de) | 1971-01-20 | 1971-01-20 | Elektronisches messgeraet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT945561B true IT945561B (it) | 1973-05-10 |
Family
ID=5796422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT54884/71A IT945561B (it) | 1971-01-20 | 1971-12-20 | Perfezionamento nei dispositivi di misura della frequenza di impulsi elettrici in particolare per contragiri o tachimetri |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2102567B2 (cs) |
| FR (1) | FR2122430A1 (cs) |
| GB (1) | GB1365761A (cs) |
| IT (1) | IT945561B (cs) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT354764B (de) * | 1976-08-13 | 1979-01-25 | Licentia Gmbh | Magnetbandgeraet |
| DE3027051A1 (de) * | 1980-07-17 | 1982-02-04 | Bayerische Motoren Werke AG, 8000 München | Pruefverfahren fuer messgeraete und schaltanordnung zur durchfuehrung des verfahrens |
| FR2522177A1 (fr) * | 1982-02-23 | 1983-08-26 | Jaeger | Dispositif d'affichage simultane sur une meme echelle de grandeurs analogiques |
| FR2579344B1 (fr) * | 1985-03-21 | 1991-06-21 | Dupont Daniel | Stimulateur analogique de circuits de commande actionnes a partir d'un poste ou habitacle |
-
1971
- 1971-01-20 DE DE19712102567 patent/DE2102567B2/de active Pending
- 1971-12-20 IT IT54884/71A patent/IT945561B/it active
-
1972
- 1972-01-06 GB GB65872A patent/GB1365761A/en not_active Expired
- 1972-01-10 FR FR7200598A patent/FR2122430A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2122430A1 (cs) | 1972-09-01 |
| DE2102567B2 (de) | 1972-05-25 |
| DE2102567A1 (cs) | 1972-05-25 |
| GB1365761A (en) | 1974-09-04 |
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