High frequency generator

  HF generator:   HF generator is the core of HF machine. It can transduce and converts the industrial AC to HF electric field and supply the heat required by the prodction.     High-frequency generator (radioffequency generator), also known as radio frequency generator. Inductively coupled plasma atomic emission spectroscopy / mass spectrometry analysis of the device used to generate the plasma torch. High frequency inductor current losing it produces to stimulate quartz torch (placed coil) within the argon plasma torch to form. Points, and his self-excited-excited (crystal-controlled) oscillator types. The oscillation frequency of 3 to 50 MHz, 27.12 MHz and 40.68 often MHz, output power of 0.7 to 7 kilowatts, commonly 1.0 to 2.0 kilowatts. Self-excited oscillator circuit is simple, oscillation, motivation, power amplifier consists of a tube is completed at the same time, easy to match with the load impedance, easy to ignite a plasma, but somewhat less frequency stability. He was excited by the composition of the oscillator crystal oscillator, frequency, motivation, power amplifier and other components, high frequency stability, but the output impedance matching requirements more stringent, generally also equipped with impedance matching network and a stable output power directional couplers, etc. . General requirements for high-frequency generator having a stable power output, the measurement system has no electrical interference, high power conversion efficiency and frequency stability as possible.