What is the trimmer capacitor of a quartz watch?
Trimming capacitance
The fine-tuning capacitor and the quartz vibrator form the oscillating circuit of the electronic watch. Adjusting the capacity of this capacitor can change the oscillation frequency to reach the standard 32768Hz. Regardless of the trimming capacitor or the oscillating capacitor, the smaller the capacitance, the higher the frequency. Explain, suppose that at the beginning, the metal parts of the moving piece and the fixed piece are exactly aligned, that is, 0. At this time, the electric capacity is the largest (3 5PF), and the frequency is the lowest. When the relative angle changes to a certain point, the frequency is exactly 32768H on the point. Then to the minimum capacitance of 5PF. At this time, the relative frequency is also the highest, so it changes cyclically. In the actual adjustment, the change is of course not necessarily like the ideal curve. But as long as it appears there is 32768H. The adjustment point. So that the purpose of adjustment can be achieved.
Quartz watches can be divided into digital quartz electronic watches, analog quartz watches, automatic quartz watches and light kinetic energy watches. Quartz watches are relatively cheaper than mechanical watches (same brand and the same style), but some high-end brand quartz watches are expensive because they have good brands, good appearance materials (18k gold or diamonds or precious metals), and excellent appearance design, resulting in some quartz watches than ordinary Mechanical watches are much more valuable.