CH544942A - Portable digital measuring device - Google Patents

Portable digital measuring device

Info

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
Application number
CH253272A
Other languages
German (de)
Inventor
Peter Dr Dosch
Original Assignee
Heberlein & Co Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heberlein & Co Ag filed Critical Heberlein & Co Ag
Publication of CH544942A publication Critical patent/CH544942A/en

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)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
CH253272A 1972-02-09 1972-02-22 Portable digital measuring device CH544942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2206110A DE2206110A1 (en) 1972-02-09 1972-02-09 PROCEDURE FOR THE POWER-SAVING OPERATION OF PORTABLE DIGITAL MEASURING DEVICES

Publications (1)

Publication Number Publication Date
CH544942A true CH544942A (en) 1974-01-15

Family

ID=5835512

Family Applications (1)

Application Number Title Priority Date Filing Date
CH253272A CH544942A (en) 1972-02-09 1972-02-22 Portable digital measuring device

Country Status (4)

Country Link
JP (1) JPS4889769A (en)
CH (1) CH544942A (en)
DE (1) DE2206110A1 (en)
FR (1) FR2171757A5 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK664473A (en) * 1973-09-24 1975-05-12 Texas Instruments Inc
DE2543696C3 (en) * 1975-09-30 1980-04-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for converting digital signals into analog signals and for converting analog signals into digital signals
US4181883A (en) * 1978-07-03 1980-01-01 The Economy Engine Company Hourmeter-tachometer
JPS59111013A (en) * 1982-12-16 1984-06-27 Matsushita Electric Ind Co Ltd Rotary position detector
JP3355370B2 (en) 2000-03-31 2002-12-09 名古屋大学長 Frequency change measuring device

Also Published As

Publication number Publication date
FR2171757A5 (en) 1973-09-21
JPS4889769A (en) 1973-11-22
DE2206110A1 (en) 1973-08-16

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Legal Events

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