CH612819B - Dispositif de controle de la haute frequence de la base de temps d'une piece d'horlogerie a cristal de quartz. - Google Patents

Dispositif de controle de la haute frequence de la base de temps d'une piece d'horlogerie a cristal de quartz.

Info

Publication number
CH612819B
CH612819B CH191072A CH191072A CH612819B CH 612819 B CH612819 B CH 612819B CH 191072 A CH191072 A CH 191072A CH 191072 A CH191072 A CH 191072A CH 612819 B CH612819 B CH 612819B
Authority
CH
Switzerland
Prior art keywords
quartz crystal
monitoring
high frequency
time base
watch part
Prior art date
Application number
CH191072A
Other languages
English (en)
Other versions
CH612819GA3 (fr
Inventor
Kinji Fujita
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 of CH612819B publication Critical patent/CH612819B/fr
Application filed by Suwa Seikosha Kk filed Critical Suwa Seikosha Kk
Publication of CH612819GA3 publication Critical patent/CH612819GA3/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)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Laminated Bodies (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
CH191072A 1971-02-10 1972-02-10 Dispositif de controle de la haute frequence de la base de temps d'une piece d'horlogerie a cristal de quartz. CH612819B (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
CH612819B true CH612819B (fr)
CH612819GA3 CH612819GA3 (fr) 1979-08-31

Family

ID=11605038

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191072A CH612819B (fr) 1971-02-10 1972-02-10 Dispositif de controle de la haute frequence de la base de temps d'une piece d'horlogerie a cristal de quartz.

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
TW201415022A (zh) 2012-07-13 2014-04-16 Sicpa Holding Sa 用於鑑定計時器真僞的方法
WO2014009563A1 (fr) * 2012-07-13 2014-01-16 Sicpa Holding Sa Procédé d'authentification d'un compteur de temps
TW201415023A (zh) 2012-07-13 2014-04-16 Sicpa Holding Sa 用於鑑定計時器真僞的方法
SG11201600181PA (en) * 2013-08-23 2016-03-30 Sicpa Holding Sa Method and system for authenticating using a quartz oscillator
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
FR2124549A1 (fr) 1972-09-22
GB1352082A (en) 1974-05-15
DE2206341B2 (de) 1977-02-03
US3864957A (en) 1975-02-11
HK40776A (en) 1976-07-09
DE2206341A1 (de) 1972-08-17
CH612819GA3 (fr) 1979-08-31
FR2124549B1 (fr) 1977-01-14

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Legal Events

Date Code Title Description
PL Patent ceased