HK40776A - Improvements in or relating to methods and apparatus for measuring the accuracy of electric timepieces - Google Patents

Improvements in or relating to methods and apparatus for measuring the accuracy of electric timepieces

Info

Publication number
HK40776A
HK40776A HK407/76*UA HK40776A HK40776A HK 40776 A HK40776 A HK 40776A HK 40776 A HK40776 A HK 40776A HK 40776 A HK40776 A HK 40776A
Authority
HK
Hong Kong
Prior art keywords
accuracy
measuring
relating
methods
timepieces
Prior art date
Application number
HK407/76*UA
Other languages
English (en)
Original Assignee
Suwa Seikosha Kk
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 Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Publication of HK40776A publication Critical patent/HK40776A/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Laminated Bodies (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
HK407/76*UA 1971-02-10 1976-06-30 Improvements in or relating to methods and apparatus for measuring the accuracy of electric timepieces HK40776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP521871 1971-02-10

Publications (1)

Publication Number Publication Date
HK40776A true HK40776A (en) 1976-07-09

Family

ID=11605038

Family Applications (1)

Application Number Title Priority Date Filing Date
HK407/76*UA HK40776A (en) 1971-02-10 1976-06-30 Improvements in or relating to methods and apparatus for measuring the accuracy of electric timepieces

Country Status (5)

Country Link
US (1) US3864957A (fr)
CH (1) CH612819B (fr)
FR (1) FR2124549B1 (fr)
GB (1) GB1352082A (fr)
HK (1) HK40776A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5188257A (en) * 1975-01-31 1976-08-02 Denshidokeino kankyuchoseisochi
CH624540B (fr) * 1978-11-24 Ebauches Sa Dispositif de mesure de la marche d'une piece d'horlogerie electronique.
EP2458458B1 (fr) * 2010-11-26 2017-11-15 The Swatch Group Research and Development Ltd. Procédé de mesure de la précision d'une montre mécanique
US9465367B2 (en) * 2012-07-13 2016-10-11 Sicpa Holding Sa Method and system for authenticating using external excitation
TW201415022A (zh) 2012-07-13 2014-04-16 Sicpa Holding Sa 用於鑑定計時器真僞的方法
TW201415023A (zh) 2012-07-13 2014-04-16 Sicpa Holding Sa 用於鑑定計時器真僞的方法
CN105518541B (zh) * 2013-08-23 2018-09-28 锡克拜控股有限公司 用于验证设备的方法和系统
CN107479357A (zh) * 2017-08-14 2017-12-15 江苏大利邦精密制造有限公司 一种钟表智能测试仪

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377349A (en) * 1943-07-24 1945-06-05 Bell Telephone Labor Inc Vibration analyzer
CH289121A (fr) * 1951-04-05 1953-02-28 Electronic S A Dispositif de contrôle de la marche d'une montre.
CH1143562A4 (fr) * 1962-09-29 1963-12-31
US3345862A (en) * 1964-01-21 1967-10-10 Robert G Rowe Resonance vibration apparatus for testing articles
US3370456A (en) * 1966-02-18 1968-02-27 Portescan Le Porte Echanpement Timepiece testing apparatus
US3540207A (en) * 1968-09-20 1970-11-17 Timex Corp Electronic watch counting circuit

Also Published As

Publication number Publication date
CH612819GA3 (fr) 1979-08-31
US3864957A (en) 1975-02-11
DE2206341A1 (de) 1972-08-17
FR2124549B1 (fr) 1977-01-14
FR2124549A1 (fr) 1972-09-22
DE2206341B2 (de) 1977-02-03
CH612819B (fr)
GB1352082A (en) 1974-05-15

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