What are the characteristics of quartz watches?
Quartz is an oxide, the composition is silicon dioxide (SiO2). Quartz will vibrate when placed in an oscillating circuit. Under certain conditions, it will transmit its own frequency to the circuit. If this characteristic is applied Quartz movement, through the quartz oscillator, the electric energy can be converted into motion. Use mechanized equipment to mass-produce circuit boards, and then add resistors and capacitors to complete the movement, and then install the case, glass and strap, one The quartz watch is roughly assembled.
advantage
Accuracy, light weight and easy maintenance.
shortcoming
Generally, the life of quartz batteries is only one or two years, and they often need to be replaced. For watches that use quartz oscillations, the quartz oscillations will decline after five to eight years of use, and the relative accuracy will be reduced. At this time, they need to be replaced. Due to the development of modern industry, labor costs are high, and it is too costly to replace many small parts with labor. Therefore, if a quartz watch has a major failure, the original factory will usually require a new movement directly.
Prevent inaccurate time
Because we have been in various magnetic fields for a long time, and the internal parts of the watch are relatively small, it is easier to magnetize. The error will be different for different magnetic field strengths. Normally, it is about 2 minutes within 24 hours (extra-strong magnetic field watch pointers will even appear directly and not move).