Вопросы и ответы о инфракрасный термометр (дальний инфракрасный) технология
1. Почему использовать a бесконтактный инфракрасный термометр?
Non-contact infrared thermometers use infrared technology to quickly and easily measure the surface temperature of objects. Quickly obtain temperature readings without mechanical contact with the measured object. Just aim, press the trigger, and read the temperature data on the LCD display. Infrared thermometers are lightweight, compact, easy to use, and reliably measure hot, hazardous, or hard-to-reach objects without contaminating or damaging the object being measured. Infrared thermometers can take several readings per second, while contact thermometers take several minutes to measure per second.
2. Как делает Инфракрасный термометр рабочий? (Рабочий принцип)
Инфракрасный термометры прием невидимый инфракрасный энергия излучаемый по различные объекты сами. Инфракрасный излучение is часть из электромагнитный спектр, который включает радио волны, микроволны, микроволны, видимый свет, ультрафиолетовый, R-лучи, и рентгеновские лучи. инфракрасный is расположенный между видимый свет и радио волны. Инфракрасный длины волн are commonly expressed in microns, and the wavelength range is 0.7 microns to 1000 мкм. В факт%2с те 0,7 мкм к 14 мкм диапазон ис б/б/д для инфракрасный термометры.
3. Как к обеспечить температура измерение точность из инфракрасный термометр?
The undisputed understanding of infrared technology and its principles is its ultimate temperature measurement. When the temperature is measured by an infrared thermometer, the infrared energy emitted by the measured object is converted into an electrical signal on the detector through the optical system of the infrared thermometer, and the temperature reading of the signal is displayed. There are several decisions** Important factors for temperature measurement, the most important factors are emissivity, field of view, distance to spot and position of spot. Emissivity, all objects reflect, transmit, and emit energy, and only the emitted energy gives an indication of the object's temperature. When an infrared thermometer measures surface temperature, the instrument receives all three types of energy. Therefore, all infrared thermometers must be tuned to read only emitted energy. Measurement errors are often caused by infrared energy reflected from other light sources. Some infrared thermometers can vary the emissivity, and emissivity values for various materials can be found in published emissivity tables. Other instruments were fixed with an emissivity preset of 0.95. This emissivity value is for the surface temperature of most organic materials, painted or oxidized surfaces, and is compensated by applying a tape or flat black paint to the surface being measured. When the tape or varnish reaches the same temperature as the base material, measure the temperature of the surface of the tape or varnish, which is its true temperature. The ratio of the distance to the spot, the optical system of the infrared thermometer collects energy from the circular measuring spot and focuses it on the detector, and the optical resolution is defined as the ratio of the distance from the infrared thermometer to the object to the size of the spot to be measured (D :S). The larger the ratio, the better the resolution of the infrared thermometer and the smaller the measured spot size. Laser aiming, only to aid in aiming at the measuring point. A recent improvement in infrared optics is the addition of a near-focus feature that provides accurate measurements of small target areas and is immune to background temperature effects. Field of view, make sure that the target is larger than the spot size of the infrared thermometer. The smaller the target, the closer it should be. When accuracy is critical, make sure the target is at least 2x the spot size.
4. Как к измерению температура с инфракрасный термометр? (Как к использовать)
Point the инфракрасный термометр at the object to be measured, press the trigger to read the temperature data on the LCD of the instrument, and ensure that the ratio of the distance to the spot size and the field of view are arranged. There are arew important things to remember when using an infrared thermometer:
1. Only the surface temperature is measured, and the infrared thermometer cannot measure the internal temperature.
2. The temperature cannot be measured through glass. Glass has very special reflection and transmission характеристики, and infrared temperature readings are not allowd. But the temperature can be measured through the infrared window. Infrared thermometer are best not use for temperature measurement on on bright or polished metal surfaces (нержавеющая сталь, алюминий, etc).
3. Locate the hot spot. To find the hot spot, the instrument aims at the target, and then scans up and down on the target until the hot spot is determined.
4. Pay Attention to environmental conditions: steam, dust, smoke, etc. It blocks the optical system of the instrument and impacts temperature measurement.
5. Ambient temperature, if the infrared thermometer is suddenly exposed to an ambient temperature difference of 20 degrees or higher, allow the instrument to adjust to the new ambient temperature within 20 minutes.
