What are the characteristics of long wave infrared?

Infrared is an electromagnetic wave with a frequency between microwaves and visible light. It is a general term for radiation in the electromagnetic spectrum with a frequency of 0.3 THz~400 THz and a wavelength of 760 nm-1000 um in vacuum. So, what are the characteristics of long-wave infrared?

What are the characteristics of long wave infrared?

1, the frequency of infrared is low (frequency from low to high order: radio, microwave, infrared, visible light), giving a feeling of heat, produce a thermal effect.

2, if the infrared ray can penetrate atoms and molecules, it will cause the expansion of atoms and molecules, resulting in the disintegration of atoms and molecules. Infrared low frequency, insufficient energy, far from the effect of atomic and molecular disintegration. So infrared rays can only penetrate the gaps between atoms and molecules, but not inside them.

3, because infrared rays can only penetrate the gap between atoms and molecules, it will accelerate the vibration of atoms and molecules, making the gap wider, that is, increase the energy of thermal motion. Macroscopically, matter is melting, boiling, vaporizing, but the physical and chemical properties of matter (atoms and molecules themselves) do not change.

4, you can use this infrared excitation mechanism to barbecue food, so that organic polymers denature, but can not use infrared to produce photoelectric effect, can not change the nucleus inside.

5. Do not use radio waves to grill food. The wavelengths of radio waves are too long to penetrate the gaps in organic polymers, let alone denature them for the purpose of cooking food.

6, the shorter the wavelength, the higher the frequency, the greater the energy, the greater the range of wave penetration. The longer the wavelength, the lower the frequency and the lower the energy, the smaller the range the wave will penetrate. For the range of diffraction energy, the opposite is true: the longer the wavelength, the stronger the diffraction power; The shorter the wavelength, the weaker the diffraction power.

Long-wave infrared

What are the operational methods of long-wave infrared therapy?

1. The patient adopts the correct posture and exposes the irradiated area.

2. Check whether the irradiated part has a normal sense of warmth.

3. Move the lamp to the top or side of the illuminated part, the distance is generally as follows:

4, in the local or whole body light bath, the two ends of the light bath box should be covered with cloth. 3 to 5 minutes after power, the patient should be asked whether the warm feeling is appropriate; The temperature in the light bath should be kept at 40~50.

5, after the treatment, dry the sweat of the irradiated area. Patients should rest indoors for 10 to 15 minutes before going out.

Long wave infrared need to pay attention to what?

1. Patients should not move during treatment to prevent burns.

2. When the irradiation part is close to the eyes or the light can reach the eyes, apply gauze to cover the eyes.

3, when the affected part has a warm sensation disorder or fresh scar sites and skin grafts are irradiated, small doses should be applied, and the local reaction should be closely observed to avoid burns.

4. Areas with obvious blood circulation disorders or vascular dilation are generally not exposed to infrared radiation.