How about the quartz watch performance?

How about the quartz watch performance?

Application of quartz crystal on the clock is a modern invention.

The first quartz watch appeared for the first time in 1969.

In this year, Japan's seiko company discovered how to make quartz tuning fork.

Quartz watch how it works?

Like a tuning fork will follow a certain regularity of vibration, when quartz crystal is affected by the 

battery power, it also can produce the vibration of the law.

Quartz crystal vibration frequency up to 32768 times per second, we can design a simple circuit to calculate the vibration frequency, when it count up to 32768 times, the circuit will be outgoing messages, for the second hand go for a second.

Because of the vibration of the quartz fairly regular, even cheap quartz watch, a day of the error rate is not more than 1 second.

The application of quartz crystal watch can mass production, production speed much faster than before, not only the price.

Can produce up to 500 million watches each year, enough to supply used around the world.

Quartz watch can also be called a "crystal vibration type electronic watch", because it is the use of crystal slice "hair vibration phenomenon".

When the crystal accept external strength voltage, will have the nature of the deformation and expansion, on the contrary, if the compression crystal, will make the crystal at both ends to produce electric power;

This was also seen in many crystals on the properties of that called "piezoelectric effect".

Quartz watch is using periodic crystal "vibration", bring us the correct time.

First of all, will be within the quartz crystal chips with electricity, crystal will be in 32768 Hertz frequency, vibration correctly;

Then the frequency must be turned to 1 hz (a change between the current of a second) signal current cycle count.

Add some signal amplitude (due to the current is very weak due to vibration), followed by some signal current and rotor gear, the second hand on the table will be launched, then after a minute hand and hour hand beat about in the principle of mechanical structure, such as: beats 60 times a second hand, minute hand would jump all quartz watch is equipped with a battery.It is a piece of integrated circuit and a quartz resonator to provide energy, 327678 vibrations per second.Is faster than this.Integrated circuit is the "brain" table.

It controls the vibration of the quartz resonator and ACTS as a frequency divider.32768 times the vibration is half-and-half division 15 times, to produce a pulse per second.