The main goal is to find out how the WET system performs when the copper wire and the Sand-Salt-Water box used in the first experiments are substituted with the Earth as the conducting ground path. A sandy beach seems a perfect test ground, sand, salt and water. So the second test round takes place on the beach were the TC s will be grounded. The main test goal is trying to repeat the earlier test results. Will the Earth function as a conductor? One experimenter claimed no difference between a cable and the Earth testing over 2 meter outside the lab. However, details are lacking.
Also, if possible, we would like to test the system at a distance of 300 meters, 1 wavelength at 1Mhz. The test at this distance is very important in order to verify the so called near- and far field effects of the WET system.
Wi-tap found an almost rainless day in the rainy season, packed a car with the Tesla coils, and all measurement and regulation equipment and drove to the beach. A restaurant facilitated the power supply and a table to put the equipment on. The temperature was around 40 Celsius. Unfortunately first we encountered a problem with the video card of the computer, after fixing that, the 110 V power supply in the restaurant turned out not to be stable. But after fixing that and connecting the input and measurement system to the the WET system, we were ready for the first test.
But another problem arose. No 1Wrms power, as aimed, entered at the transmitter coil or TxTC. Either there was a problem with the coax-cable or connectors, or not enough power was sent as a starting power. We didn’t have time to find out, besides still 100mW was left and that should be enough to test if the WET works or not.
The first test is with TC’s at a 4 meter distance, still using a cable of 5 meter. The result: The power led of the receiver Tesla Coil, or RxTC shines. Because of the unreliable equipment Wi-tap didn’t measure the power-efficiency, but the led didn’t shine weak.
The second test with TC’s was at a 4 meter distance without the virtual cable. As you can see on the pictures some nice guys helped dig the holes in the sand for placing vertically the stainless steel plates used for grounding. The result: the power led gives light, weaker this time, but shines, as long as the WET is in function! At least the WET works 100% wireless with the real Earth!
We repeated the above tests at a distance of 8 meters. With the cable, it still works, but with the Earth as conductor it didn’t at 8 meters.
- The most important: Wireless energy transfer trough the Earth is possible!!!
- We need to analyse and understand better how Earth conduction /transmitting through the Earth works.
- Our goals for the first tests on the beach were too ambitious. Circumstances are difficult and we have to simplify the control and measurement circuit drastically.