1. Features and applications of thermal anemometers:
1. There is a tiny wind speed sensor (glass ball) on the top of the measuring rod probe, and a nickel-chromium wire coil (heating coil) and a thermocouple are burned in the ball.
2. The sensor is directly exposed to the airflow. When a certain amount of current passes through the heating coil, the glass ball is heated to a certain temperature. At this time, the corresponding thermoelectric potential appears at both ends of the thermocouple.
3. When the thermal anemometer is in still air (the wind speed is zero), the thermoelectric potential is a fixed value; when measuring the wind speed, the airflow makes the temperature of the working environment of the thermocouple drop, and the thermoelectric potential at both ends of the thermocouple changes. Its value is a function of wind speed. Therefore, the corresponding wind speed value can be calculated by measuring the thermoelectric potential.
4. The thermal anemometer can be used for low airflow velocity testing.
5. Small probes, clever grilles and diffusers.
6. The combination of hot wire and standard thermistor is convenient for fast and accurate measurement.
7. Small value record, repeated reading and data retention function.
8. Microprocessor circuit guarantee, in order to use special features.
9. Large backlit liquid crystal display, which can read wind speed and temperature values at the same time.
10. Quick digital measurements provided by portable anemometers.
11. The thermistor sensor for temperature measurement has a quick response.
12. Applications: Environmental testing, air conveyors, flow hoods, clean rooms, air velocity, air balance, fans/motors, furnace speeds, refrigerator freezers, spray paint booths.
