The Development of a New Electromagnetic Field Generator for Anti-seal ing
Scaling exists commonly and its harm is huge. Because of this, design an amplitude-modulating electromagnetic field generator. The drive signal is obtained by amplitude modulation and power amplification. Generate two sine signals by the wien bridge and make the two signals through the MC1496 multiplier, the carriers amplitude changes with the modulators rule. And the frequency of carrier and modulator could be changed with the adjustment of the Oscillation resistance. Then, make use of D class amplifier TDA8920BTH to enlarge the power of modulated signal. At last, load the drive signal on a ferrite of magnetic coil to gain an electromagnetic field whose strength is modulated. Differ from the ordinary form of winding pipe with wire line, this design is making the magnetic coil close to a pipe. Thats more convenient for installing and removing. Of course, the concrete effect of descaling is needed to test by further experiments.
Scaling Amplitude modulation Multiplier D class amplifier Electromagnetic field
Wen Bin Jiang Qing Li Xiong Li
China Jiliang University, Hangzhou, China
国际会议
上海
英文
2162-2168
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）