No strong radiation, no effect on the human body! The main principle is: the way of wireless charging is electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Most of the wireless charging of mobile phones uses the principle of electromagnetic induction.
Although the technical content of the equipment is high, the economic cost of the equipment is higher and the maintenance cost is large. Because of the realization of long-distance high-power wireless magnetoelectric conversion, the energy consumption of the equipment is relatively highHigh. As the distance and power of wireless charging devices increase, the loss of idle work will be greater.
Under normal circumstances will not harm the mobile phone, wireless charging now the working frequency is done below 1M, so the signal of the mobile phone will not have an impact. Wireless charging has no effect on mobile phone battery life, and wired charging is basically the same, but the rate is lower, but the wireless charger conversion rate is still high, more energy saving.
does no harm to mobile phones. The wireless charger uses the latest wireless charging technology by using alternating magnetic generated between coilsField, transmission of electrical energy, inductive coupling technology will become a bridge connecting charging base stations and equipment.
Taking a 1000mAh capacity lithium battery as an example, the radiation of the wireless charger is calculated. 50% charging capacity is about 7~8Wh. If it is required to be full for about two hours, the maximum charging power should reach at least 1W (the maximum power of the GSM900 mobile phone is about 2W); Because the mobile phone wireless charging method is to place the phone above the charger rather than inside, soThe radiation leakage rate may not be small.
Radiation is certain, otherwise the energy cannot be transmitted through space. The radio waves used for charging must be larger than the radiation power of the phone itself, otherwise the charging efficiency is too low. Calculated with a 1000mAh capacity lithium battery, 50% of the charging capacity is about 7~8Wh.
Reporter conducted a test, the results show that the wireless charger does exist radiation, the value is small but not without. Tests show that the radiation value of wireless chargers is less than that of mobile phones, such as Sharp SH8010C and Samsung i579, but when used with other electronic devices such as computers, WiFi2 id=' Is it true that wireless chargers emit more radiation than mobile phones '> Is it true that wireless chargers emit more radiation than mobile phones
First answer no: Yes. The working power of the wireless charger is larger than that of the mobile phone, and the electromagnetic field energy radiated by the wireless charger is larger than that of the mobile phone.
Conclusion: Wireless chargers do produce electromagnetic radiation, although the value is usually small, but should be wary of its possible cumulative effect. With the popularity of wireless charging technology, users are exposed to more and more radiation sources in daily life, such as mobile phones, computers, WiFi, etc., and long-term accumulation may have an impact on health. Wireless Charging Technology and controversy With the development of mobile Internet, the rise of wireless charging function has led to a discussion on electromagnetic radiation.
Radiation is certain, otherwise the energy cannot be transmitted through space. The radio waves used for charging must be larger than the radiation power of the phone itself, otherwise the charging efficiency is too low. Calculated with a 1000mAh capacity lithium battery, 50% of the charging capacity is about 7~8Wh.
The radiation of wireless chargers does not seem to be as large as imagined, but it does not rule out that there are some inferior products on the market at present, which do not meet the relevant regulations and standards, and can not be well judged, but the needleFor the current more common "Electromagnetic radiation protection Regulations", the average specific absorptance (SAR) of the whole body should be less than 0.02W/kg for any consecutive 6 minutes within 1 day and 24 hours.
Does not harm the human body. "As long as the wireless charger is done according to the technical specifications, it will not have a radiation hazard to the human body." He Guili said. This shows that the Internet rumors are not true. Nowadays, people are more and more concerned about their health, so the radiation problem of electronic devices is also more and more concerned. Wireless charging technology is implemented using the principle of electromagnetic induction, although it will also produce radiation, but it will notCause harm to human body.
Conclusion: Wireless chargers do produce electromagnetic radiation, although the value is relatively small, but the cumulative effect can not be ignored, users need to be vigilant. With the popularity of wireless charging, the problem of radiation gradually surfaced. Wireless chargers transfer electrical charges through the air, and their working principle involves electromagnetic radiation. Experts say any wirelessly connected device generates electromagnetic waves, and the effects on the human body are complex and require long-term research.
1, there is radiation is certain,Otherwise, the energy cannot be transmitted through space. The radio waves used for charging must be larger than the radiation power of the phone itself, otherwise the charging efficiency is too low. Calculated with a 1000mAh capacity lithium battery, 50% of the charging capacity is about 7~8Wh. 2, the Ministry of Telecommunications Research Institute Tel laboratory director He Guili said that wireless chargers have radiation is inevitable, but since it has been listed, it means that it must meet international standards, will not cause harm to the human body. "As long as the wireless charger is done according to the technical specifications, it will not have a radiation hazard to the human body." He Guili said. This shows that the Internet rumors are not true.
3, conclusion: Wireless chargers do produce electromagnetic radiation, although the value is usually small, but should be wary of its possible cumulative effect. With the popularity of wireless charging technology, users are exposed to more and more radiation sources in daily life, such as mobile phones, computers, WiFi, etc., and long-term accumulation may have an impact on health. Wireless Charging Technology and controversy With the development of mobile Internet, the rise of wireless charging function has led to a discussion on electromagnetic radiation. However, some experts said that radiation is not only generated by wireless chargers, computers, mobile phones, WiFi, TV, microwaveThe furnace also has radiation, so there is a problem of superimposed radiation. Some experts remind that when using products with electromagnetic radiation, it is best to maintain an appropriate distance, and develop the habit of washing your face and hands after use to effectively reduce the adverse effects of electromagnetic radiation on health.
5, the body's response to electric fields is very strong, but the body's response to magnetic fields is almost no, so this system will not affect human health. As an electronic charging product, the charger itself can not avoid radiation, so it is inevitable that the wireless charger has radiation. However, the current power of the wireless charger is very small, and the charging time is long, which is generatedRadiation is also small, should not cause greater harm to people.
6, many wireless chargers on the market do not indicate the radiation value, and the electromagnetic radiation standard for wireless chargers has not yet been introduced. According to the Regulations on Electromagnetic Radiation Protection, the average specific absorption rate (SAR) of the whole body of ordinary users should be less than 0.02W/kg for any consecutive 6 minutes within 1 day and 24 hours. Wireless charging, the principle is inductive charging. Samsung uses the same technology in its flagship Galaxy phones.
1, there is radiation is certain, otherwise the energy can not be transmitted across the space. The radio waves used for charging must be larger than the radiation power of the phone itself, otherwise the charging efficiency is too low. Calculated with a 1000mAh capacity lithium battery, 50% of the charging capacity is about 7~8Wh. 2, the Ministry of Telecommunications Research Institute Tel laboratory director He Guili said that wireless chargers have radiation is inevitable, but since it has been listed, it means that it must meet international standards, will not cause harm to the human body. "As long as the wireless charger is done according to the technical specifications, it will not have a radiation hazard to the human body." He GuiliSay. This shows that the Internet rumors are not true. 3, however, some experts said that radiation is not only generated by wireless chargers, computers, mobile phones, WiFi, TV, microwave ovens and other radiation, so there is a problem of superimposed radiation. Some experts remind that when using products with electromagnetic radiation, it is best to maintain an appropriate distance, and develop the habit of washing your face and hands after use to effectively reduce the adverse effects of electromagnetic radiation on health.
4, many wireless chargers on the market do not indicate the radiation value, and the electromagnetic radiation standard for wireless chargers has not yet been introduced.According to the Regulations on Electromagnetic Radiation Protection, the average specific absorption rate (SAR) of the whole body of ordinary users should be less than 0.02W/kg for any consecutive 6 minutes within 1 day and 24 hours. Wireless charging, the principle is inductive charging. Samsung uses the same technology in its flagship Galaxy phones.