CH618572GA3 - - Google Patents

Download PDF

Info

Publication number
CH618572GA3
CH618572GA3 CH1233977A CH1233977A CH618572GA3 CH 618572G A3 CH618572G A3 CH 618572GA3 CH 1233977 A CH1233977 A CH 1233977A CH 1233977 A CH1233977 A CH 1233977A CH 618572G A3 CH618572G A3 CH 618572GA3
Authority
CH
Switzerland
Prior art keywords
frequency
input signal
timepiece
phase
signal
Prior art date
Application number
CH1233977A
Other versions
CH618572B (en
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
Publication of CH618572B publication Critical patent/CH618572B/en
Application filed filed Critical
Priority to CH1233977A priority Critical patent/CH618572B/en
Priority to DE19782843699 priority patent/DE2843699A1/en
Priority to GB7839801A priority patent/GB2007881A/en
Priority to US05/949,993 priority patent/US4201077A/en
Publication of CH618572GA3 publication Critical patent/CH618572GA3/xx

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

A method and apparatus for measuring the frequency error of a timebase frequency of a quartz timepiece, relative to a reference frequency. An input signal having a frequency equal to the timepiece timebase frequency is produced from the timepiece. The input signal is applied to a passive quartz crystal filter having a resonant frequency equal to the reference frequency, and which filter produces an output signal in response to the input signal. The phase of the input signal and the output of the passive quartz crystal filter is compared and at least one phase comparison signal related to the phase difference of the two signals is produced. The phase comparison signal drives a meter having a dial graduated in frequency error units to display the frequency error.
CH1233977A 1977-10-10 1977-10-10 PROCESS FOR MEASURING THE RATE OR THE FREQUENCY DEVIATION OF A QUARTZ CLOCK PART AND MEASURING APPARATUS FOR IMPLEMENTING THIS PROCESS. CH618572B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1233977A CH618572B (en) 1977-10-10 1977-10-10 PROCESS FOR MEASURING THE RATE OR THE FREQUENCY DEVIATION OF A QUARTZ CLOCK PART AND MEASURING APPARATUS FOR IMPLEMENTING THIS PROCESS.
DE19782843699 DE2843699A1 (en) 1977-10-10 1978-10-05 METHOD OF MEASURING THE RATE OR FREQUENCY DEVICE OF A QUARTZ WATCH
GB7839801A GB2007881A (en) 1977-10-10 1978-10-09 Method for measruring the running or the deviation of frequency of a quartz timepiece and measuring apparatus for carrying out this method
US05/949,993 US4201077A (en) 1977-10-10 1978-10-10 Method for measuring the rate or the frequency error of a quartz timepiece and measuring apparatus for carrying out this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1233977A CH618572B (en) 1977-10-10 1977-10-10 PROCESS FOR MEASURING THE RATE OR THE FREQUENCY DEVIATION OF A QUARTZ CLOCK PART AND MEASURING APPARATUS FOR IMPLEMENTING THIS PROCESS.

Publications (2)

Publication Number Publication Date
CH618572B CH618572B (en)
CH618572GA3 true CH618572GA3 (en) 1980-08-15

Family

ID=4382095

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1233977A CH618572B (en) 1977-10-10 1977-10-10 PROCESS FOR MEASURING THE RATE OR THE FREQUENCY DEVIATION OF A QUARTZ CLOCK PART AND MEASURING APPARATUS FOR IMPLEMENTING THIS PROCESS.

Country Status (4)

Country Link
US (1) US4201077A (en)
CH (1) CH618572B (en)
DE (1) DE2843699A1 (en)
GB (1) GB2007881A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414036A1 (en) * 1983-04-13 1984-11-15 Noble, John Henry, Greenwich, Sidney CLOCKWORK ADJUSTMENT
JP3013775B2 (en) * 1996-04-11 2000-02-28 日本精機株式会社 Driving device for stepping motor type instrument
ITMI20112421A1 (en) * 2011-12-29 2013-06-30 St Microelectronics Srl METHOD AND CIRCUIT TO DETERMINE RESONANCE FREQUENCIES OF A RESONANT DEVICE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243702A (en) * 1939-05-19 1941-05-27 Rca Corp Frequency monitor and detector
US3892124A (en) * 1974-06-14 1975-07-01 Time Computer Wristwatch analyzer
US4041767A (en) * 1976-10-18 1977-08-16 Keeler Eugene R Testing apparatus for use in calibrating wristwatches

Also Published As

Publication number Publication date
DE2843699A1 (en) 1979-04-12
US4201077A (en) 1980-05-06
GB2007881A (en) 1979-05-23
CH618572B (en)

Similar Documents

Publication Publication Date Title
GB2076967A (en) Industrial process control instrument employing a resonant sensor
GB2054215B (en) Temperature compensating circuit
CH617314B (en) ELECTRONIC CLOCK.
HK11484A (en) Improvements in or relating to electronic timepieces
CH618572GA3 (en)
CH626499B (en) ELECTRONIC TIMING DEVICE WITH AN INPUT TERMINAL FOR RECORDING EXTERNAL TIME DATA AND TIME DATA SUPPLY DEVICE.
GB1352082A (en) Methods and apparatus for measuring the accuracy of electric timepieces
GB2004155B (en) Quartz electronic timepieces
SU661387A1 (en) Frequency small deviation measuring device
GB2036386B (en) Apparatus for measuring rate of electronic timepiece
SU651446A2 (en) Discrete syncronizer
SU1185261A1 (en) Apparatus for measuring own frequency of microwave resonator
SU1133576A2 (en) Quantum variometer
SU1137362A2 (en) Pressure and temperature pickup
JPS5357872A (en) Electronic watch
SU600598A1 (en) Electronic device for tuning musical instruments
JPS541051A (en) Producing apparatus for liquid crystal display element
SU1164620A1 (en) Digital spectrum analyser
SU1010540A1 (en) Ultrasound speed determination device
SU691679A1 (en) Frequency output apparatus for measuring displacements
SU1495813A1 (en) Device for determination of correlation function of transient characteristics of broad-band filter
JPS557607A (en) Digital display system by measuring sum or difference between two frequencies
JPS57190233A (en) Tuning device
GB2002982A (en) Quartz crystal timepiece
JPS5619482A (en) Electronic timepiece equipped with temperature compensating circuit

Legal Events

Date Code Title Description
PL Patent ceased