De slinger opstelling.

 
The plate consists of stacked small transformer steel plates 11×1.5×0.5 mm and 18 mm high. This is to avoid Eddy currents! 
On one side of the pendulum plate is the permanent magnet. 
On the other side is a coil. This coil can be switched on or off. 
With this set-up we can test with stronger coil magnet force (the induction generated magnet is weak). 
So to find the force of the coil to work against the movement we can have a stronger coil magnet. 
I measured with an opto-coupler when the pendulum was at the lowest point. 
At that point the coil was switched off, to avoid the effect of the outgoing plate. At the highest point the coil was switch on again. So, only the effect of the ingoing plate was measured. 
The total time was measured when the pendulum came to a standstill. Also was measured the time when the coil was never on. The difference between the 2 times will give us our answers! 

Here are the results: 

test met de magneet en de spoel met ompoler in de N-Z stand (alle tijden in milliseconden) N-Z half aan & half N-Z off
aan	aan	aan	aan	aan			uit	uit	uit	uit	uit
332	333	319	318	317	323,8		317	316	317	316	328	318,8
312	314	329	330	330	323		327	328	329	329	313	325,2
325	325	314	313	314	318,2		314	313	313	313	321	314,8
306	306	326	326	325	317,8		322	323	322	323	307	319,4
312	314	307	304	306	308,6		306	305	308	304	310	306,6
290	292	314	313	313	304,4		311	309	309	308	293	306
272	277	294	290	289	284,4		293	289	293	292	279	289,2
248	255	278	271	273	265		279	274	276	280	256	273
246	247	257	243	243	247,2		255	244	254	251	248	250,4
186	192	246	245	246	223		249	248	247	248	181	234,6
244	245	194	182	180	209		184	175	178	177	251	193
162	165	242	242	243	210,8		250	255	254	253	148	232
243	244	164	158	157	193,2		151	146	147	147	295	177,2
152	153	243	245	245	207,6		282	297	298	297	141	263
246	247	150	147	147	187,4		141	142	140	140	334	179,4
145	144	246	252	254	208,2		380	354	319	334	144	306,2
258	258	144	140	142	188,4		142	142	144	143	161	146,4
140	141	260	273	275	217,8		185	174	158	165	151	166,6
274	273	139	140	140	193,2		148	150	151	150		149,75
142	142	271	263	260	215,6
255	255	144	146	147	189,4
5235	5267	5449	5141	5146	5247,6		4836	4952	4757	4770	4461	4755,2
				With EM& Mag							No EM & Mag

– Hi&Low

5216,0

4787,7

 
If the time of the pendulum is longer, then that means that there was less resistance. Or that there was a force helping the swing a bit. 
The measurement was done 5 times, 1 with the coil (EM) on (aan) and 1 with the coil (EM) off (uit). That sequence 5 times, then we got the average over those measurements.From the results, it is very clear that when the coil (EM) is on, there is a force helping it to swing longer than when the coil (EM) was off! (In line with my assumption that magnets attract metals plates, never repel!) 
This force must come from coil magnet in the ingoing faze, as it is the only change with no coil on! 
Another proof that the ingoing plate is not working against the movement of the plate, it is actually helping that movement. 
The movement of the plate is exactly as it would move (rotate) in a generator. 
So, I come to the exciting and disturbing conclusion that the coil can generate electricity without putting the required energy in!?