Zhejiang Pujiang Jingsheng Crystal Co.,Ltd.

Clock Crystal Frequency

Crystal desk clocks are a luxurious alternative for displaying the moment. Quartz clock movement counts on the quartz crystal's piezoelectric property, which leads to the crystal to modify shape when it's exposed to an electric charge. The pendulum is a dependable time measurer because,...

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Crystal desk clocks are a luxurious alternative for displaying the moment. 

Quartz clock movement counts on the quartz crystal's piezoelectric property, which leads to the crystal to modify shape when it's exposed to an electric charge. The pendulum is a dependable time measurer because, for smaller arcs, the time necessary for a comprehensive swing (period) depends just on the period of the pendulum and is almost independent of the area of the arc. The mercury pendulum isn't provided with a conventional rating nut and fine adjustment to the timekeeping is created with the suspension-regulating arbor accessible from the front part of the dial.


A Rolex bezel holds the watch crystal in place and might get an insert in the type of a more compact rim, which might be interchanged. The clearest method of cutting back the impact of temperature on oscillation rate is to maintain the crystal at a constant temperature. Certainly a main factor in building a clock is the selection of hands.


Crystal properties:

Piezoelectric effect: under the action of mechanical force (pressure or tension), the two ends of the crystal single crystal will generate electric charge, its electric quantity is equal but its sign is opposite. In industry, colorless, defect-free and amorphous crystals are often used as piezoelectric quartz.


Parliamentary thermoconductivity: better than glass, but worse than most minerals, and has directional properties.


(3) hot melt: crystal is difficult to melt, melt temperature of 1715 ℃ or so, the presence of inclusions can lower melting point.


(4) the boiling point: 2477 ℃


Chemical stability: excellent, dissolve only in hydrofluoric acid at room temperature, not in other acids and bases. It can be dissolved in sodium carbonate solution at high temperature and high pressure.


Methansolubility: crystals do not dissolve in water under ambient temperature and pressure.


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