Features of Far Infrared Thermometer
1. Non-contact measurement: it does not need to contact the internal or surface of the measured temperature field, therefore, it will not interfere with the state of the measured temperature field, and the pyrometer itself is not subject to damage from the temperature field.
2. Wide measurement range: because it is non-contact temperature measurement, so the pyrometer is not in the higher or lower temperature field, but work in the normal temperature or the pyrometer allows the conditions. In general, it can measure negative tens of degrees to more than three thousand degrees.
3. Temperature measurement speed: that is, the response time is fast. As long as the infrared radiation received by the target can be set in a short period of time.
4. High accuracy: infrared temperature measurement will not destroy the temperature distribution of the object itself as contact temperature measurement, so the measurement accuracy is high.
5. High sensitivity: as long as there is a small change in the temperature of the object, the radiant energy will have a large change, easy to measure. Temperature measurement of tiny temperature field can be carried out.
6. Temperature distribution measurement, and temperature measurement of moving or rotating objects. Safe to use and long service life.
Disadvantages of far-infrared thermometer
(1) Must accurately determine the emissivity of the object to be measured;.
(2) Avoid the influence of high temperature objects in the surrounding environment; and
(3) For transparent materials, the ambient temperature should be lower than the temperature of the object to be measured.
(4) The pyrometer should be vertically aligned with the surface of the object to be measured, and in any case, the angle should not exceed 30 ° C
(5) can not be applied to the temperature measurement of bright or polished metal surfaces, can not be through the glass for temperature measurement;;
(6) the correct choice of the follow-on coefficient, the target diameter must be filled with the field of view;
7) If the infrared thermometer is suddenly in the ambient temperature difference of 20 ℃ or higher, the measurement data will be inaccurate, the temperature equilibrium and then take its measured temperature value....
