Non-contact infrared thermometers advantages and use
Advantages of using non-contact infrared thermometer: non-contact infrared thermometer using infrared technology for measurement, the measurement does not need to contact the object to be measured, just aiming and pressing the board can be quickly and accurately measure the surface temperature, the measurement data is displayed directly on the LCD display. Infrared thermometer light weight, small size, easy to use, and can reliably measure hot, dangerous and other difficult to distinguish the object, without contamination or damage to the object being measured. Non.jpg The use of non-contact infrared thermometer
1, the use of non-contact infrared thermometer temperature measurement, non-contact infrared thermometer to point to the measured object and then press the key, at this time to pay attention to the consideration of the ratio between the distance and the size of the measurement area, the machine is equipped with a laser light for aiming at the measured object.
2, the object distance ratio (D: S) refers to the measurement distance and the surface area of the object to be measured ratio, when the non-contact infrared thermometer and the object to be measured when the distance increases, then the requirements of the thermometer and the surface area of the object to be measured is greater.D: S = 12:1
3, the observation range Be sure to ensure that the target to be measured to be larger than the machine's measurement area. Less diameter of the measured area needs to be more than 1.5 square centimeters.
4,Reflectivity The emissivity of most organic materials and paint or oxidized materials is 0.95 (has been set in this machine), smooth or polished metal surfaces may lead to inaccurate measurements, to compensate for the need to cover the surface of the tape or black paint, and wait to make it the same temperature as the material underneath, and then carry out temperature measurements.
5,Press the battery switch, load the battery correctly, press the switch button to turn on the power, LCD display battery symbol, temperature value, value retention time of about 7 seconds.
6, use According to the size of the object to be measured, select the appropriate distance, align the object to be measured, press the button switch, the LCD displays the temperature value, the reading.
Several factors that affect the measurement accuracy of non-contact infrared thermometer:
1, emissivity: general object surface emissivity of 0.95, the emissivity of a variety of other materials can be found from the published emissivity table.
2, field of view: infrared thermometer to the measured object distance and the measured spot size ratio.
3, object distance ratio: to ensure that the area of the object to be measured is greater than the spot size measured by the infrared thermometer, the smaller the area of the object to be measured, it should be closer to the word.
Infrared thermometer working principle: infrared thermometer by the optical system, photodetector, signal amplifier, signal processing, display output and data analysis and other components. Optical system convergence of its field of view of the target infrared radiation energy, infrared energy gathered in the photoelectric detector and transformed into the corresponding electrical signals, the signal is then converted into the temperature value of the target to be measured.
