What is infrared radiation? Infrared thermometers operate through infrared radiation. Infrared rays occupy a part of the electromagnetic spectrum between visible light. The electromagnetic spectrum is a group of different types of radiation. It includes gamma rays, X-rays, ultraviolet rays, visible infrared radiation, microwaves, and radio waves. The wavelength of infrared rays is greater than the wavelength of visible light. So infrared is an invisible light. "Infrared" means "below the red line", indicating that this light can only be seen below the red light in the electromagnetic spectrum. Features Usually used to measure moving and intermittent targets, targets in a vacuum state, targets that cannot be touched by humans due to harsh environmental space constraints and security threats. Although it can be done with other equipment in some cases, the cost is relatively high. Contact and non-contact temperature measurement The contact temperature detector must match the target material temperature. For example, mercury in a glass thermometer receives the temperature in the air, and therefore expands or shrinks. When a contact detector is placed in a different environment, it takes a while to adapt to the new environment. This is also called the response time of the detector. In some applications, it is impractical or impossible for the detector to contact the measured object. The infrared detector can measure the temperature in a short distance, so it is very practical in some cases. Principles of temperature measurement Infrared detectors convert absorbed radiation into thermal energy, thus increasing the temperature of the detector. And the temperature change data is converted into an electronic signal, which is enlarged and displayed. Principle of radiation All objects are made up of constantly shaking atoms, the higher the frequency of high energy atom vibration. The vibration of all particles, including these atoms, generates an electromagnetic spectrum. The higher the temperature of an object, the faster its vibration, so the higher the radiant energy of the spectrum. As a result, all objects continue to radiate outward at their own wavelength and frequency, and their wavelength and frequency depend on the temperature of the object itself and its spectral emissivity. Visual range ratio and ratio to diameter distance The visual range refers to the angle of operation of the instrument, which is determined by the individual's diopter. The visual range is the ratio of the distance between the instrument and the target and the diameter of the target. The smaller the target, the closer you should be to it. When the diameter of the target is very small, it is very important to bring the thermometer closer to the target, so as to ensure that only the target is being measured, not including the surrounding environment. Laser vision The laser point is used to display the point of the measurement area, not to emit something to be measured. This is a misunderstanding. The sensor is placed next to the laser module and is hit directly by the object. Forms the same light path as the laser. Kids's Furniture Handles,Kids Plastic Knob,Kids Door Handle,Kids Coloful Handles Shenzhen Hongjingyuan Metal&Plastic Products Co., Ltd. , https://www.hjypull.com