TEST #7 : Tests of the model v1.1 with a new bifilar flat Tesla coil
created on december 28, 2012 - JLN Labs - last update january 5, 2013
All informations and diagrams are published freely (freeware) and are intended for a private use and a non commercial use.
Toutes les informations et schémas sont publiés gratuitement ( freeware ) et sont destinés à un usage personnel et non commercial
Cliquez ici pour la version FRANCAISE
January 5, 2013 - TEST #7 : Here is a new version v1.1 of the GEGENE with a new flat bifilar Tesla coil.
The power I/O measurements have been done with a common digital oscilloscope, the measurements have been also checked on an ungrounded oscilloscope Fluke123 powered by its own internal batteries. The two scope probes are set to X10 and are connected to the flat bifilar coil output. The probe Ch1 is used to measure the voltage accross the flat bifilar coil output and the probe Ch2 is used to measure the current i.e. the voltage accross a 0.1 Ohm non inductive resistor Mundorf MR10 10W. Then the datas are sent to a datasheet to compute true RMS values and the efficiency. The electrical power input of the induction cooker is measured with a Wattmeter Energy Logger 4000F directly connected on the power grid.
In this test, I have used the same setup of halogens lamps as for the TEST#5, there are :
The TOTAL POWER connected at the OUTPUT of the GEGENE is 3550 Watts
Here are the full construction details of my new flat bifilar Tesla coil v1.1, it is wounded exactly as the flat bifilar Tesla coil described in his patent N° 512,340 from 1894.
Below the construction details :
The coil is assembled on a plywood board of 10/10 mm thick and 180x180mm wide. The dual cable is fixed with cyanoacrylate glue.
The model v1.1 is ready for the tests :
Here the setup of the TEST #7:
TEST #7 RESULT :
Here the measurements done with a digital oscilloscope.
A zoom on the voltage and the current shows clearly that there is no inductive effect here.
voltage and current measurements have also been checked with an
"ungrounded" oscilloscope Fluke123 and powered with its
own internal batteries.
The measured values are perfectly similar.
Here the accurate measurements of the non inductive resistor Mundorf MR10 of 0.1 ohm 10W. The true value is 0.09 Ohm.
The value of the non inductive metal resistance used as the current probe is still the same since the previous TEST#2 and TEST#5.
The electrical power for the induction cooker is measured with a Wattmeter Energy Logger 4000F directly connected on the power grid :
The Wattmeter measures 1431 Watts at the INPUT, this is in line with the 1600 Watts programmed on the induction cooker.
Below the curve of the power output of the halogens lamps computed with the datas recorded with the digital oscilloscope.
Here a video of the tests of the GEGENE v1.1 in action
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