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project:laser_modulation [2015/12/16 20:02] ivan_ahepjuk [Main solution:] |
project:laser_modulation [2015/12/16 20:44] ivan_ahepjuk [Transmitting sound frequencies by using the modulated laser beam] |
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| **Introduction:** | **Introduction:** | ||
| - | Hopefully there will not be big fails. Still, It would be challenge to tune and tweak the concept and build robust design. I would like to use green laser, because i got it at home and I think that its strong enough to transfer from my rooftop to the Ema hill. | + | Hopefully there will not be big fails. Still, It would be challenge to tune and tweak the concept and build robust design with using as little parts as possible. I would like to use green laser, because i got it at home and I think that its strong enough to transfer from my rooftop to the Ema hill. |
| * **step 0:** Think, ask and read how to use laser beam to transfer sound frequencies. Think how to receive this kind of information. Understand the principles. | * **step 0:** Think, ask and read how to use laser beam to transfer sound frequencies. Think how to receive this kind of information. Understand the principles. | ||
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| - | **Step 1:** Initial design: | + | **Step 1:** Initial design: This is basic idea how to build the transmitter. |
| * All amplifiers are LM358N | * All amplifiers are LM358N | ||
| - | **Step 2:** simulation by LTspice | ||
| - | **Step 3:** Stay tuned | + | |
| + | **Step 2:** simulation by LTspice (maybe little tutorial how to use ltspice would be more than good) | ||
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| + | **Step 3:** Photo of actual prototype | ||