CH544942A - Tragbares digitales Messgerät - Google Patents
Tragbares digitales MessgerätInfo
- Publication number
- CH544942A CH544942A CH253272A CH253272A CH544942A CH 544942 A CH544942 A CH 544942A CH 253272 A CH253272 A CH 253272A CH 253272 A CH253272 A CH 253272A CH 544942 A CH544942 A CH 544942A
- Authority
- CH
- Switzerland
- Prior art keywords
- measuring device
- portable digital
- digital measuring
- portable
- measuring
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1066—Mechanical or optical alignment
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electric Clocks (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2206110A DE2206110A1 (de) | 1972-02-09 | 1972-02-09 | Verfahren zum stromsparenden betrieb von tragbaren digitalen messgeraeten |
Publications (1)
Publication Number | Publication Date |
---|---|
CH544942A true CH544942A (de) | 1974-01-15 |
Family
ID=5835512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH253272A CH544942A (de) | 1972-02-09 | 1972-02-22 | Tragbares digitales Messgerät |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS4889769A (de) |
CH (1) | CH544942A (de) |
DE (1) | DE2206110A1 (de) |
FR (1) | FR2171757A5 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK664473A (de) * | 1973-09-24 | 1975-05-12 | Texas Instruments Inc | |
DE2543696C3 (de) * | 1975-09-30 | 1980-04-17 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Umsetzung von Digital-Signalen in Analog-Signale und zur Umsetzung von Analog-Signalen in Digital-Signale |
US4181883A (en) * | 1978-07-03 | 1980-01-01 | The Economy Engine Company | Hourmeter-tachometer |
JPS59111013A (ja) * | 1982-12-16 | 1984-06-27 | Matsushita Electric Ind Co Ltd | 回転位置検出装置 |
JP3355370B2 (ja) | 2000-03-31 | 2002-12-09 | 名古屋大学長 | 周波数変化測定装置 |
-
1972
- 1972-02-09 DE DE2206110A patent/DE2206110A1/de active Pending
- 1972-02-22 CH CH253272A patent/CH544942A/de not_active IP Right Cessation
-
1973
- 1973-02-05 FR FR7303988A patent/FR2171757A5/fr not_active Expired
- 1973-02-08 JP JP48015216A patent/JPS4889769A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4889769A (de) | 1973-11-22 |
DE2206110A1 (de) | 1973-08-16 |
FR2171757A5 (de) | 1973-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |