Laser Beauty Machine Supplier - Beauty Equipment ManufactureWhat is the working principle of the skin detector-Beijing Zhenhuimei Beauty Equipment Co., Ltd.
The oil content test adopts the world-recognized SEBUMETER method, which is based on the photometer principle. After a special matting tape with a thickness of 0.1mm absorbs the oil on the human skin, it will become a transparent tape. The amount will change, the more oil absorbed, the more light will be transmitted, so that the oil content of the skin can be measured. The biggest advantage is that the test probe is small in size, easy to use, and can test any part of the skin. This is an indirect measurement of oil gland secretions, and the results can differentiate between different skin types, making it possible to accurately understand oil changes caused by internal and external causes.
2. Principle of skin moisture test:
The water content of the skin is determined by two factors, internal and external. The ability of the stratum corneum to retain water varies greatly, and the water content can vary from 10% to 60%. The most important thing is the respiration process of the skin sweating and the skin The composition of the water mixture. External factors, including ambient temperature, humidity, medicines and cosmetics, etc., can determine and change the moisture content in the skin. The moisture content of the skin will affect the formation of the water and oil mixed film on the skin surface, and this protective film is very important to the aging of the skin. Therefore, it is very useful to quantitatively test the moisture content of the skin and the relative change after a certain care period.
The principle of moisture testing is based on the fact that the dielectric constant (<7) of water (81) and other substances varies considerably. According to the water content, the appropriate shape of the measuring capacitor will change with the capacitance of the skin, while the The capacitance of the skin is within the measurement range, so that the moisture content of the skin can be measured.
3. Principle of skin melanin test:
The color of human skin mainly depends on the content of melanin in human skin. Quick and accurate measurement of melanin content in skin is very important in the development of cosmetics, medical treatment, beauty, drug and health product efficacy testing. According to the amount of change in skin melanin Better whitening and freckle-removing cosmetics can be developed. The probe is based on the principle of spectral absorption (RGB), by measuring the specific wavelength of light on the human bodyThe amount of reflection on the skin to determine the amount of melanin in the skin. The transmitter of the probe emits light with a wavelength of 568nm to irradiate the skin surface, and the receiver measures the light reflected by the skin. Since the amount of emitted light is constant, the amount of light absorbed by the skin can be measured, and the content of melanin in the skin can be measured. The measurement range of the probe is 0-10, the higher the measurement value, the higher the melanin content in the skin.
Fourth, the test principle of skin pH:
The pH value of the skin is determined by the water-soluble substances in the stratum corneum, the sweat discharged, the water-soluble oil layer on the skin surface and the carbon dioxide discharged. The surface of the skin is usually in a weakly acidic state, and the pH range is basically between (4.0-6.5). Keeping the skin in a normal weakly acidic state can protect the skin from bacteria. It is very important to test the pH value of the skin frequently to study the effects of cosmetics, cleaning products and medicines on the skin.
Beauty Equipment Co., Ltd. is a professional manufacturer of beauty equipment integrating R&D, production, sales and service. Has successfully developed and produced radio frequency beauty equipment, , laser beauty equipment, beauty weight loss equipment, beauty weight loss equipment, water light beauty equipment, anti-aging Fading ultrasonic scalpel beauty equipment and various high-end beauty and body equipment and other professional beauty equipment are widely used in hospital dermatology, plastic surgery and other beauty and body institutions.
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