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・ Automatic number identification
・ Automatic number plate recognition
・ Automatic Packet Reporting System
・ Automatic painting
・ Automatic parallelization
・ Automatic parallelization tool
・ Automatic parking
・ Automatic Performance Control
・ Automatic Picture Transmission
・ Automatic Pilot
・ Automatic pistol
・ Automatic platform gate
・ Automatic Press / VIP
・ Automatic Pressure Tracking Adiabatic Calorimeter
・ Automatic programming
Automatic quartz
・ Automatic radar plotting aid
・ Automatic redial
・ Automatic Reference Counting
・ Automatic repeat request
・ Automatic revolver
・ Automatic rifle
・ Automatic ring back
・ Automatic route selection
・ Automatic scorer
・ Automatic Secure Voice Communications Network
・ Automatic Self-Cleansing Filter Syndicate Co Ltd v Cuninghame
・ Automatic semigroup
・ Automatic sequence
・ Automatic server discovery


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Automatic quartz : ウィキペディア英語版
Automatic quartz

Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the environmental impact of batteries. Several manufacturers employ this technique.
==Mode of operation==

A rotating pendulum inside the case is attached to a relatively large gear which meshes with a very small pinion. As the wearer moves, the pendulum turns and spins the pinion at a very high speed - up to 100,000 rpm. This is coupled to a miniature electrical generator which charges a storage device which is a capacitor(s) or a rechargeable battery. A typical full charge will last between two weeks and six months.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Automatic quartz」の詳細全文を読む



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