PLEASE HELP! Wireless Electricity Transmission using Lasers

[hoprqwgriop]

I am calculating transmission efficiency by calculating the power gained by the solar panel (Volts * Amps) over the power output of the laser (.1 Watts) but it is returning a transmission efficiency over 100 percent. Can someone please help.

[morgea]

Hello,

If your calculations have a transmission efficiency of over 100%, there may be an error in the calculation or assumptions made. Try and heck these things:
- check units in calculations, make sure they are consistent
- measure accuracy, make sure the measurements for voltage and current are accurate
- review assumptions, and make sure there aren't any factors or losses that were neglected (losses can be due to reflection, absorption, or inefficiencies in the solar panel)
- look over your experimental setup
- research on your data to gain data validation, see if your calculated transmission efficiency may be validated through our experiments similar to yours

I hope this helps!

[bfinio]

Hi,

Unless you are testing this in a completely dark room, your solar panel is going to generate electricity from ALL of the light hitting it, including any sunlight entering the room, and to some extent from artificial light, not just the laser pointer. You are not including the power of these other sources in your calculation, which can result in an apparent efficiency over 100%. If you only want to test the laser pointer, you need to do the experiment in any otherwise dark room. Hope that helps!

Ben