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Thread: Radio frequency heating apparatus

  1. #1 Radio frequency heating apparatus 
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    Hi! I need to carry out radio frequency heating(heating by radio waves) of my reaction sample.
    Can anyone please help me design the circuit for that?


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  3. #2 Circuit comes later.. 
    Forum Freshman Raghavendrabsrg's Avatar
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    Radio frequency heating?? principle would be quite similar to "microwave heating"...

    overview: 1) Lot of radio wave energy will be needed to heat anything.
    2) Normally the Antenna systems that emit the radio waves should be properly designed, and in most of the cases maximum efficiency is to be needed, so heat production need to be reduced to reduce the losses, so the antenna design may be hard.
    3) a microwave heater has something called as a "magnetron"(sounds cool eh?) so you might try building one which works on radio frequency first..

    So until unless you try to work on the above things.. there is no meaning in constructing the "circuit"..

    Do reply,
    -Raghavendra bsrg


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  4. #3  
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    Stick your sample in the microwave oven.

    http://en.wikipedia.org/wiki/Microwave_transmission
    Microwave transmission refers to the technology of transmitting information or power by the use of radio waves whose wavelengths are conveniently measured in small numbers of centimeters; these are called microwaves. This part of the radio spectrum ranges across frequencies of roughly 1.0 gigahertz (GHz) to 30 GHz. These correspond to wavelengths from 30 centimeters down to 1.0 cm.
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  5. #4  
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    I am looking into transmitter and antenna design to generate radio waves and how to confine them in the space to heat the reaction mixture.
    I came across a paper in which they connected two electrodes to a RF generator and generated RF waves between them. Can you help me with the design of an RF generator?
    My reaction requires constant refluxing with a condenser. So I will have to make a hole in the oven to allow for refluxing.
    I also need to vary the frequency of waves I am using for heating and need to determine which frequency works best for my sample..
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  6. #5  
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    an INDUCTION HEATER:>??
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