With the development of mobile phones, people are more and more inseparable from the mobile phone, people's demand for mobile phones is getting higher and higher. In many places, there is always a "beep" sound from mobile phones. It is a very annoying thing for us. Especially in areas where more work needs to be done. Let me introduce you to something that can help solve these problems.
With the popularity of mobile phones, mobile phone interference is also increasing. Especially in many places, people always hear the sound of “beep” from mobile phones. It is a very annoying thing for us. People who are working in these places will have more or less problems. Such as high frequency transformer manufacturing industry.
The third place is the production line of high-frequency transformers (HF), because there are many power supplies and control panels on the production line; if there is no mobile phone jammer to block them, it will cause great interference impact on sensitive devices such as transformers and electric meters; so HF manufacturers must use mobile phone jammers at specific positions on their production lines to ensure that equipment safety security requirements
High frequency transformers are used in many fields, such as power generation and distribution, industrial control and communications equipment, digitally controlled power supplies, computer switching power supplies, instrumentation, audio-visual applications and radio frequency (RF) and microwave electronics. When designing a high frequency transformer, the designer needs to consider a lot of parameters according to different purposes. The design parameters include leakage inductance parameter Lkmax (or Lkmin), turns ratio N1/N2 , primary wire-to-secondary wire overlap length Ls , stray capacitance Cs1 and Cs2 between primary/secondary windings and the core(e) The magnetic field strength Hm generated by the transformer when it is carrying current under open or short-circuit conditions. In order to meet different uses ,the design of high frequency tranformer is also divided into categories:
Mobile phone jammer is a device that emits radio frequency signals to prevent mobile communication devices from receiving and transmitting signals. It uses radio frequency interference technology. When mobile phones work, the base station transmits control signals and user data to users through the air interface, and users also send data back to the base station through the air interface. The mobile phone jammer can send a high-power signal with the same frequency as the base station in a small area, thereby forming a strong interference field with the same frequency as it around it, causing all mobile phones in this area to lose their connection with the base station and thus Unable to make outgoing calls or dial 911. In this way, they can protect important places such as prisons, courts, examination rooms, detention centers, factories and enterprises where security is needed. At present, mobile phone jammers are mainly used in prisons, military bases (barracks), intelligence agencies, government offices and other places where confidentiality is required.
October 10, 2022- -
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