Click on the table's photo numbers for WAVEFORM scope-shots.

Parameters:

Symbol

Value

Unit

Recorded Data:

Symbol

Unit

Film:

PSU DC-Voltage

Vdc

6.2-6.6

[V]

Sweep Time/cm

sweep

[ms/cm]

Ilford FP4 plus

Resist. added to prim.

R1

0.1

[Ohm]

Channel 1 V/cm

ch1

[V/cm]

ASA 100

Signalgenerator freq.

f (=BPS)

40-100

[Hz]

Channel 2 V/cm

ch2

[V/cm]

Camera:

Cap. added to prim.

C1

0.1-8

[uF]

No of osc. at f1

osc f1

[ - ]

Nikon F90X AF

Cap. added to sec.

C2

0-375

[pF]

Ringtime at f1

t @ f1

[ms]

f = 4

Sec. spark length

x

0-15

[mm]

No of osc. at f2

osc f2

[ - ]

t = 0.2s

Red figures:

Ringtime at f2

t @ f2

[ms]

recorded

data taken

*)  C1,C2 are external capacitances, added to the corresponding self-capacitance

from photo

click photo number for waveforms!
  ¦                                           click on "Results" for an explanation!

Photo	Parameters				Results					Recorded Data ( from Oscilloscope )
No.	f	C1 *)	C2 *)	x	f1	f2	U1max	U1max	I1sat	sweep	ch1	ch2	osc f1	t @ f1	osc f2	t @ f2
[ - ]	[Hz]	[uF]	[pF]	[mm]	[Hz]	[Hz]	[V]@f1	[V]@f2	[A]	[ms/cm]	[V/cm]	[V/cm]	[ - ]	[ms]	[ - ]	[ms]
2A	50	0.0987	0	no spark	-	1200	-	155	3.6	5	50	0.2	-	-	12	10
3A	50	1.0567	0	no spark	-	1020	-	155	3.6	5	50	0.2	-	-	10.2	10
4A/5A	50	1.5947	0	no spark	-	950	-	150	3.6	5	50	0.2	-	-	9.5	10
6A	50	2.6397	0	no spark	-	850	-	150	3.6	5	50	0.2	-	-	8.5	10
7A	50	3.9857	0	no spark	-	730	-	147.5	3.6	5	50	0.2	-	-	7.3	10
8A	50	5.4817	0	no spark	-	640	-	130	3.6	5	50	0.2	-	-	6.4	10
9A	50	8.0227	0	no spark	-	590	-	115	3.6	5	50	0.2	-	-	5.9	10
10A	50	8.0227	0	8	1538	556	62	20	3.6	5	20	0.2	5	3.25	3	5.4
11A	50	8.0227	0	8	1538	556	62	20	3.6	1	20	0.2	5	3.25	3	5.4
12A	50	7.4847	0	8	1489	625	66	20	4	5	20	0.5	7	4.7	3	4.8
13A	50	5.4817	0	8	2078	667	64	16	3.75	2	20	0.5	8	3.85	3	4.5
14A	50	3.9857	0	8	2375	702	66	18	3.5	2	20	0.5	9.5	4	4	5.7
15A	50	2.6397	0	8	3000	800	54	10	3.7	2	20	0.2	12	4	4	5
16A	50	1.5947	0	8	3947	893	uncal.	uncal.	3.7	2	20uncal	0.5	15	3.8	5	5.6
17A	50	1.0567	0	8	4891	1000	uncal.	uncal.	3.6	2	20uncal	0.2	9	1.84	5	5
18A	50	0.0987	0	8	15625	1250	135	17.5	3.5	2	50	0.2	10	0.64	5	4
19A	100	0.0987	0	8	13514	1200	130	15	2.3	2	50	0.2	10	0.74	3	2.5
20A	100	3.9857	0	8	2500	741	57	17	2.4	2	20	0.2	4	1.6	2	2.7
21A	80	8.0227	0	8	1600	526	66	22	2.6	2	20	0.2	2	1.25	2	3.8
22A	70	8.0227	0	8	1622	541	60	17	3	2	20	0.2	3	1.85	2	3.7
23A	60	8.0227	0	8	1667	541	65	20	3.4	2	20	0.2	5	3	2	3.7
24A	50	8.0227	0	8	1714	547	66	17	3.6	2	20	0.2	6	3.5	3.5	6.4
25A	50	2.6397	0	15	3333	625	60	20	3.7	2	20	0.2	8	2.4	5	8
26A	50	2.6397	0	10	3019	786	58	28	3.5	2	20	0.2	8	2.65	5.5	7
27A	50	2.6397	0	5	3125	938	58	16	3.6	2	20	0.2	10	3.2	3	3.2
28A	50	2.6397	0	2	3235	1000	55	17	3.4	2	20	0.2	11	3.4	1	1
29A	50	2.6397	0	0	3143	-	41	-	4.7	2	20	0.2	11	3.5	-	-
30A	50	2.6397	375.4	2	3226	357	64	8	3.4	2	20	0.2	10	3.1	2	5.6
31A	50	8.0227	375.4	12 no spark	2105	317	-	66	3.4	2	20	0.2	4	1.9	2	6.3
32A	50	5.4817	375.4	12 no spark	2333	333	-	90	3.4	2	50	0.2	7	3	2	6
33A	50	3.9857	375.4	12 no spark	2647	351	-	87.5	3.6	2	50	0.2	9	3.4	2	5.7
34A	50	2.6397	375.4	12 no spark	3056	364	-	95	3.6	2	50	0.2	11	3.6	2	5.5
35A	50	1.5947	375.4	12 no spark	3846	370	-	102.5	3.6	2	50	0.2	10	2.6	2	5.4
36A	50	0.0987	375.4	12 no spark	18000	375	-	135	3.6	2	50	0.2	9	0.5	3	8

 

Dependence of  fast oscillation f1 on parameters C1, sparklength, BPS	Dependence of  slow oscillation f2 on parameters C1, sparklength, BPS