| An induction heater is exactly what it claims to be. It is | | | | power from the other two units and allow the heater |
| a heating unit that works but utilizing powerful magnetic | | | | to function correctly. |
| fields to heat a conductive body. There are three main | | | | They usually work on one of two frequencies known |
| components to an induction heater, the primary part | | | | in the business as RF and MF induction. The difference |
| being the coil. The coil is actually composed of many | | | | between the two is simply power. RF induction works |
| smaller coils - copper coils - wrapped around and | | | | between 100 kHz and 10 MHz, RF style heaters are |
| around each other, and a central mandrel (a rod | | | | used for smaller items and heating needs, while the MF |
| whose purpose is to be coiled by other metals and to | | | | Induction heater(s) work on a range anywhere |
| keep them in the desired shape). The coil is the | | | | between 1 kHz and 10 kHz and are, as a general rule |
| inductive unit, transferring the heat through from the | | | | of thumb used on larger components. |
| power source to the working surface. | | | | Induction heating is not a new idea, it was originally |
| The power unit is of course the generator, the item | | | | conceived back in the 19th century by a scientist call |
| that all induction heaters depend on, its function is to | | | | Michael Faraday when he connected two copper |
| take in the power from the mains supply, and increase | | | | wires to a battery and noticed a reverse flow of |
| it to an average anywhere between 2-500 kW. The | | | | current in one of the wires. Since then they have gone |
| final component of any induction heater is the working | | | | through many changes but are still running on the basic |
| surface or work head. This is simply an area of | | | | principles discovered and noted by Faraday almost |
| capacitors and transformers whose job it is to link the | | | | 200 years ago. |