Development of soldering iron head for soldering and tinning
1. Advantages of infrared thermometer
1. Non-contact measurement: It does not need to touch the inside or surface of the measured temperature field, therefore, it will not interfere with the state of the measured temperature field, and the thermometer itself is not damaged by the temperature field:
2. Wide measurement range: Because it is a non-contact temperature measurement, the thermometer is not in a higher or lower temperature field, but works at a normal temperature or only under the conditions allowed by temperature measurement. - Under normal circumstances, it can measure minus tens of degrees to more than three thousand degrees.
3. The temperature measurement speed is fast: that is, the response time is fast. As long as it receives the infrared radiation of the target, the temperature can be fixed in a short time;
4. High accuracy: Infrared temperature measurement will not destroy the temperature distribution of the object itself like contact temperature measurement. Therefore, the measurement accuracy is high:
5. High sensitivity: As long as there is a slight change in the temperature of the object, the radiation energy will change greatly, which is easy to detect. It can perform temperature measurement and temperature distribution measurement of tiny temperature field, as well as temperature measurement of moving or rotating objects. It is safe to use and has a long service life.
Second, the disadvantages of infrared thermometers
1. Susceptible to environmental factors (ambient temperature, dust in the air, etc.);
2. It has a greater influence on the temperature readings of bright or polished metal surfaces:
3. It is only limited to measuring the external temperature of the object, and it is inconvenient to measure the temperature inside the object and when there are obstacles.
3. Precautions for the use of infrared thermometers
1. The emissivity of the object under test must be accurately determined:
2. Avoid the influence of high temperature objects in the surrounding environment;
3. For transparent materials, the ambient temperature should be lower than the temperature of the measured object;
4. The thermometer should be aligned vertically to the surface of the object to be measured. In any case, the angle cannot exceed 30C
5. It can be applied to the temperature measurement of bright or polished metal surfaces, and cannot be used for temperature measurement through glass;
6. To choose the follow-up coefficient correctly, the target diameter must fill the field of view;
7. If the infrared thermometer is suddenly in a situation where the ambient temperature difference is 20C or higher, the measurement data will be inaccurate, and the measured temperature value will be taken after the temperature is balanced.
