Infrared thermometer has a harm to human body? What works? What is structure?

Benefits: infrared rays to human skin, subcutaneous tissue, has strong penetrating power. The infrared radiation of human body to produce an effect to make the temperature of the skin and subcutaneous tissue increased accordingly, promote blood circulation and metabolism, promote people's health. The effects of the thermal infrared physiotherapy on organizational, anti-inflammatory effects and promote the regeneration has certainly by clinical treatment usually adopt the direct illuminate the lesion site. Near infrared trace irradiation treatment on microcirculation improvement effect is remarkable, especially in the micro flow condition improved significantly. Of irradiated blood capillary blood stream speed, reducing erythrocyte aggregation phenomenon, nipple venous plexus under congestion phenomenon of ease or disappear, thus to improve the tissue, the vital organs of nutrition, metabolism, repair, and have a positive role in hazard: infrared the damage to the skin effect is different from ultraviolet light. Uv main cause immunological reaction photochemical reaction and light, and infrared radiation generated by reaction is caused by the molecular vibration and temperature. Caused by the infrared thermal radiation on the skin penetration than ultraviolet light. The amount of 25% ~ 65% can reach the epidermis and the dermis, 8% ~ 17% can reach the subcutaneous tissue. Infrared thermal radiation effect through its make the skin temperature, blood capillary expansion, congestion, increase skin moisture evaporation of adverse effects on the skin directly. Its main show is red papules, premature aging and skin pigment disorder. Skin temperature, expansion of capillary hyperemia, increasing skin moisture to evaporate, such as direct adverse effects on the skin. Infrared can also increase uv damage to the skin, accelerate skin aging process. Use the same uv intensity is prevented bask in a product and the same energy, measured in the natural outdoor sun to SPF ( Prevent bask in coefficient) Significantly lower under artificial light is measured in the laboratory is prevented bask in performance, this is because in the natural sunlight, skin by ultraviolet and infrared dual function. The role of infrared and ultraviolet (uv) in accelerating tissue degeneration is the same. Infrared also can promote the development of ultraviolet light causes skin cancer. Principle: all temperature above absolute zero objects are constantly emit infrared radiation energy into the surrounding space. The size of the object's infrared radiation energy and wavelength distribution & ndash; — With its surface temperature has a very close relationship. Therefore, based on the object of the radiation of infrared energy measurement, can accurately determine its surface temperature, which is the objective basis which is the basis of the infrared radiation temperature measurement. Infrared energy focusing on the photoelectric detectors and translated into corresponding electrical signals. The signal after amplifier and signal processing circuit according to the instrument internal algorithm and the target emission rate adjusted to the temperature of the measured target. In addition, target and thermometer should also be considered in the environmental conditions, such as temperature, atmosphere, pollution and interference factors such as the impact on the performance index and correction method. Structure: by the optical system, photoelectric detector, signal amplifier, signal processing and display output parts. The optical system within its field of view of target infrared radiation energy, the size of the field is decided by the optical parts and positions of the thermometer.