A weather instrument is an electronic device used to measure and record weather conditions. It typically includes several components such as a thermometer, hygrometer, barometer, and anemometer. The basic structure of a weather instrument can be divided into the following parts:
1. Thermometer: Used to measure the temperature of the surrounding air. There are generally two types: ordinary thermometers and electronic thermometers.
2. Hygrometer: Used to measure the humidity of the surrounding air. There are generally two types: mechanical hygrometers and electronic hygrometers.
3. Barometer: Used to measure the pressure of the surrounding air. There are two types: mercury barometers and mercury-free barometers.
4. Anemometer: Used to measure the speed and direction of wind. Common types include mechanical anemometers and electronic anemometers.
