In marching conditions there is not always opportunity to recharge the mobile phone, radio station or the digital camera. It is good when at your disposal there is car – it is possible to recharge accumulators from its onboard network. And if the car is inaccessible? Then the self-made electric generator of small power will come to the rescue.
It is required to you
- The coil, copper wire, permanent magnet, diodes, thong of hours, insulating tape
Instruction
1. Manufacture the coil on which reel up copper wire. In the coil insert small permanent magnet which can freely move. The sizes of the coil should be picked up by practical consideration as well as quantity of rounds of wire on it. For production of the coil it is possible to use piece of plastic tube. If you move the conductor in magnetic field across its magnetic lines, then in the conductor the electromotive force which will cause potential difference on the ends of the conductor is directed, as generates the directed movement of electrons, that is electric current.
2. Muffle the ends of internal tube (coil) that the magnet has not dropped out. Now shake such electric generator that the magnet moved in the coil. In wire the electromotive force will begin to be directed and electric current will begin to be developed.
3. To have opportunity to charge the accumulator by means of the generator, make the rectifier (diode bridge). Diodny Bridge is necessary as tension and polarity of current change chaotically. Now at any fluctuation of magnet in the coil at the output of the rectifier the impulse of current of the polarity, necessary for charging, will be developed.
4. As the generator by the sizes does not exceed matchbox, attach to it thong of hours and place on hand (or leg). Now, when during the movement you will swing hand, the magnet fluctuates in the coil therefore it develops electric current. Generator capacity is enough in order that in day to recharge the mobile phone. And if you make two devices and place them standing, then there will be enough energy for work of LED small lamp.
5. If you make campaign on the kayak, strengthen the generator on oar. The generator will develop energy at oscillating motions of oar. The generator is not afraid of moisture, does not demand lubricant and at thorough hermetic execution can work even under water. For protection of the generator against dirt envelop it polyethylene.