UChicago Instructional Physics Laboratories

04/17/19

Vid2 : 4489.741fps

Vid1 : 21,839fps

Vid2 raw data

Frame P1 P2

12.000 28.000 194.00
16.000 33.000 189.00
23.000 41.000 181.00
31.000 50.000 172.00
38.000 57.000 166.00
49.000 66.000 156.00
62.000 61.000 145.00
74.000 89.000 134.00
81.000 95.000 127.00
86.000 99.000 123.00
90.000 104.00 118.00
91.000 106.00 116.00
92.000 107.00 114.00
93.000 109.00 113.00
94.000 110.00 112.00
95.000 111.00 112.00
96.000 111.00 111.00

04/18/19

Your browser does not support the HTML5 video element

{FIXME ${/s/4bl2bz/8401/758836457240a7983be3b3db3463da30107b780e/4.1.1/_/download/resources/com.atlassian.confluence.plugins.confluence-view-file-macro:view-file-macro-resources/images/placeholder-medium-multimedia.png}$Vid3.mp4

Vid3 : 29,771fps

1.0000 47.000 73.000
7.0000 49.000 71.000
17.000 51.000 69.000
27.000 54.000 66.000
33.000 57.000 63.000
38.000 59.000 62.000
40.000 59.000 61.000
49.000 60.000 61.000
51.000 60.000 60.000

Vid4 : 2162.115fps

83.000 120.00 360.00
99.000 153.00 324.00
118.00 195.00 283.00
128.00 215.00 263.00
130.00 222.00 257.00
132.00 226.00 250.00
133.00 228.00 249.00

Vid3 Calib : 210.67px / 1.5mm = 0.0071mm/px

Vid4 Calib : 1202px / 9.5mm = .0079mm/px

Below is a plot of the data and best fit to the two regions. The Black markers represent the data from the Thick Neck region which were used in the fit. Blue markers are measurements from the Thick Neck region that were not used in the fit. Likewise, the Red markers are the fitted data from the Thin Neck region and the magenta points are Thin Neck measurements which were not used in the fit.

Note that the blue dots which were excluded from the fit likely represent the transition from surface tension to viscosity dominated regimes. Data excluded from the Thin Neck region (red markers) are where the width of the neck is one or two pixels.

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Power law exponent for fitted data are:

γ = 0.65 in Thick Neck Region

γ = 1.02 in Thin Neck Region

04/24/19

Try using extension tubes. 68mm.

Calibration on 0.5mm scale. 1210 - 26 pixels over 8 tic marks = 3.378 microns / pixel.

Pinchoff frame = 61

Frame rate = 37106 fps

Frame	P1	P2
12	24	66
22	28	62
33	33	57
40	37	53
47	41	50
52	43	48
55	44	47
57	44	46
59	45	46

Frame	P1	P2	Frame	P1	P2	Frame	P1	P2	Frame	P1	P2
1	20	71	18	26	64	35	34	56	52	43	47
2	20	70	19	27	64	36	35	56	53	44	47
3	21	70	20	27	63	37	35	55	54	44	47
4	21	70	21	28	63	38	36	54	55	44	46
5	21	69	22	28	62	39	37	54	56	45	46
6	22	69	23	28	62	40	37	53	57	45	46
7	22	68	24	29	62	41	38	53	58	45	45
8	23	68	25	29	61	42	38	52	59	45	45
9	23	68	26	30	61	43	39	52	60	45	45
10	23	67	27	30	60	44	39	51	61	45	45
11	24	67	28	31	60	45	40	50	62	45	45
12	24	67	29	31	59	46	40	50	63	45	45
13	24	66	30	32	59	47	41	49
14	25	66	31	32	58	48	42	49
15	25	65	32	33	58	49	42	48
16	26	65	33	33	57	50	42	48
17	26	65	34	34	57	51	43	48

042519

2758.62 fps

Calib : 41 - 993 at 19 * 0.5mm

0.001 mm/px

Pinch off at frame 134.

Frame	P1	P2
1	87	378
2	87	377
3	88	376
4	89	375
5	89	374
6	90	374
7	91	373
8	91	372
9	92	371
10	93	370
11	93	369
12	94	368
14	96	366
16	97	365
18	99	363
20	100	361
22	102	359
24	103	357
26	105	355
28	107	353
30	109	351
32	110	349
34	112	346
36	114	344
38	116	342
40	117	339
42	120	337
44	122	334
46	124	332
48	125	330
50	128	327
52	130	325
54	132	322
56	135	320
58	137	318
60	139	315
62	141	312
64	144	309
66	147	307
68	149	304
70	152	301
72	154	299
74	157	296
76	159	293
78	161	291
80	164	288
82	167	285
84	169	282
86	172	280
88	174	277
90	177	275
92	179	272
94	182	269
96	184	267
98	186	265
100	188	263
102	190	261
104	192	259
106	194	257
108	196	254
110	198	252
112	200	250
114	202	248
116	204	246
118	207	244
120	209	241
122	211	239
124	213	237
126	215	235
128	217	232
129	219	231
130	220	229

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