Top Quality 808 Diode Laser Germany Bars High Energy Effective Hair Removal Machine
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 200 unit/month
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- Q: Just bought a new house Agile Riverside International, the district behind a substation, measured a straight line distance of about 240 meters, the substation is a GIS substation, but outside are high voltage lines. A little heart unhappy, KFS did not mention the substation thing, pay a deposit to see before they found. The link is an introduction to this substation.
- Modern high-voltage intelligent substation electromagnetic environment is more complex, one, high-intensity static pure electric field or magnetic field on the human body is not long-term impact, and then do not know the 50Hz alternating, the previous low-voltage substation did not worry about this; Second, the intelligent power station Using a large number of digital monitoring equipment, many are working in the communication band, this one more than the radiation is also quite impressive, like the computer room like that.
- Q: What is the biggest difference between electromagnetic radiation and charged particles?
- X-ray and gamma-ray generated by the electromagnetic energy, different from the RF transmitter generated by the electromagnetic energy. RF device electromagnetic energy belongs to the spectrum of the lower frequency of that end, can not break the molecules together with the chemical bond, it is classified as "non-ionizing" radiation. Where will there be electromagnetic radiation? There are many sources of electromagnetic radiation. Both inside and outside the human body are covered by natural and artificial radiation emitted by the energy and magnetic energy; lightning is one of the examples of natural radiation sources. As for the artificial radiation source, including microwave ovens, radios, television broadcast transmitters and satellite communications devices. Electromagnetic radiation in two levels, the frequency band radiation, radio frequency electromagnetic waves. Frequency of the national standard electric field strength of 4000v / m, magnetic induction intensity of 0.1mT; radio frequency electromagnetic wave unit is μW / ㎝ 2, the national standard limit of 40, for the general public environmental assessment value of 20%. Common law Coulomb's law: F = kQq / (r ^ 2); electric field strength: E = F / q point electric field strength: E = kQ / (r ^ 2);
- Q: efore it is so down, there is no difference, but the recent period of time old!
- It is you can not adapt to the reasons for playing computer for a long time, the computer or less play, both damage vision, but also have to absorb a lot of radiation, if not necessary or less. If you really need to often play the computer, you can try to step by step practice.One day only one or two hours, and so on in the plus one hour, to adapt to a few days plus, so go on You will not be vomiting again for months
- Q: Briefly describe the conditions under which light radiation is generated and what is the difference between spontaneous emission and the process of stimulated radiation
- The conditions of light radiation, in the final analysis, are energy. The energy (or frequency) is high, such as gamma rays, decay from the nucleus. And blackbody radiation can come from any object with a temperature higher than 0K, such as the background radiation of 3K microwave radiation, warm objects can launch infrared, higher temperature, such as burning red iron, glass or incandescent light began to launch visible light , The temperature reaches the surface of the sun 6000K black body radiation, including both infrared, visible and ultraviolet light. Discharge phenomena can emit ultraviolet light (such as mercury lamps, hollow cathode lamps) and / or visible light (such as neon lights is the discharge of rare gases). Some substances have fluorescence, phosphorescence properties, that is, absorb a certain wavelength of photons, the energy through another specific, longer than the wavelength of wavelength absorption wavelength of light emitted and released. The difference between spontaneous emission and stimulated radiation Spontaneous radiation: In the excited state of the atom, the electrons in the excited state energy level can only stay for a short period of time, spontaneously jump to the lower energy level, while radiating a photon, this radiation is called spontaneous radiation. Stimulated radiation: When the atom is in the excited state E2, if the energy is exactly E1 (where E2> E1) Photons, under the influence of incident photons, the atoms will emit a similar photon and jump to the low level
- Q: (1): the best frequency of the various wall thickness of the tube (the highest wound injury) is different, adjust the frequency is changing the frequency of the tube (2): What is the difference between vertical polarization and horizontal polarization? (3): What is the reflector through the wave? Reflective value in the detection process? (4): I would also like to know the ultrasound (5): you use the electromagnetic sound related sources say something. Thank you enlighten me ... put away Ask the professional to help, thank you.
- The surface of the measured object is provided with a meandering coil, at some point, by loading a high-pressure narrow pulse or harmonic current source to generate an alternating electromagnetic field H, will be measured in the object to generate the induced current, that is, eddy current I The If a stable magnetic field is produced by the permanent magnet at the same time, it will interact with the internal eddy current of the metal to produce the Lorentz force. The particle of the measured object produces mechanical vibrations under the action of this force, resulting in ultrasonic waves propagating or traveling along the surface of the test object. This is the basic principle of electromagnetic ultrasonic excitation. Electromagnetic ultrasonic reception is the reverse process of excitation. When the surface of the measured object from the internal projection, the displacement of the particle, with a positive charge of the lattice under the action of the bias magnetic field, resulting in alternating current. This alternating current will cause the magnetic field of the alternating surface of the conductor to be measured. This alternating magnetic field leaks out the conductor and excludes the electromotive force in the coil above the conductor to be measured. This can be detected. In the electromagnetic ultrasonic non-destructive testing, the measured object as part of the turtle magnetic sensor, must be electrical or magnetic conductor. If the measured object is a ferromagnetic material, in addition to Lorentz force, but also by the role of magnetostrictive force.
- Q: Does the refrigerator have radiation? How much is the radiation?
- The radiation of the refrigerator is small and can be said to be small. Because now almost all of the refrigerator is completely closed, and are metal shell, the radiation will be screen to avoid.
- Q: Are there any radiation in the high pressure room of the power equipment?
- so it will not be like electromagnetic radiation as the body directly absorb, but will be in the body inside the induction current, then the induction current we need to control " The
- Q: Home downstairs telecommunications fiber and digital TV receiver (the whole district) will not have radiation, the human body has no harm?
- Fiber has outer protection, almost no radiation, digital TV receiver is also very little cable radiation Wireless router for the electromagnetic radiation problem, the reporter comprehensive expert recommendations, lists some of the recommendations to reduce radiation, provided to the residents reference: 1, away from the wireless device. 2, do the isolation, but also reduce the radiation. 3, notebook wireless Internet access, do not be too close to the body. 4, computer operators eat more carrots, cabbage, bean sprouts, tofu, red dates, oranges and milk, eggs, animal liver, lean meat and other foods to supplement the body of vitamin A and protein. But also drink tea, tea, tea polyphenols and other active substances conducive to the absorption and resistance to radioactive substances.
- Q: What is the power supply voltage of the beauty amplifier?
- This is different in different countries. Like Japan, Taiwan, the United States, Canada is to use 110V voltage, in these areas using the ultrasonic induction device would have to use 110V power supply voltage.
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Top Quality 808 Diode Laser Germany Bars High Energy Effective Hair Removal Machine
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 200 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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