Warning: Undefined variable $s in /var/www/public_html/osl/classes/DAO.php on line 959
NAOJ GW Elog Logbook
LOG-IN
Displaying report 1-1 of 1.
BIGFOOT (cell birefringence)
Print this report.
ShalikaSingh - 23:37, Monday 21 October 2024 (3795)Get code to link to this report
hydrogel meaurement with new force gauge

[Katsuki, Shalika, Marc]

1.5 mm hydrogel, recipe same as previous. The error on force can be ±0.01 N. The measurement is taken in transmission of LC without BS. 

20 avg, 0.5V-3V with 0.25V

0 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-15-53 PM.txt

0.28 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-22-16 PM.txt

0.31 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-27-33 PM.txt

0.36 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-31-40 PM.txt

0.41 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-36-20 PM.txt

hydrogel broke -- Also, there could be an issue of hydrogel breaking due to it getting dried. So, reduced to 10 avg for faster measurement.

0 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-44-04 PM.txt

0.28 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-47-38 PM.txt

0.30 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-50-56 PM.txt

0.37 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-54-23 PM.txt

0.42 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 5-58-02 PM.txt

0.45

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-02-41 PM.txt

0.51

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-06-23 PM.txt

we moved the translation stage by (23.2-20.2) cm

0.51 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-12-19 PM.txt

0.45 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-15-46 PM.txt

0.42 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-20-16 PM.txt

0.37 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-23-50 PM.txt

0.31 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-27-47 PM.txt

0.28 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-31-09 PM.txt

0 N

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-34-17 PM.txt

Input without any sample

C:\Users\atama\Dropbox\Cell Birefringence\Measurement data\hydrogel\Force gauge v2\Mon, Oct 21, 2024 6-37-59 PM.txt

Comments related to this report
ShalikaSingh - 15:33, Thursday 24 October 2024 (3800)

The analysis done only for the 2nd hydrogel (the one which was measured after the first one broke). The point with force 0N is omitted, since the actual 0N should be the point of start of seeing the force change. The birefringence was measured at 2 points

Fig1:Birefringence vs Force of point 1

Fig 2: Diattenuation vs Force  of point 1

Fig 3:Birefringence vs Force of point 2

Fig 4: Diattenuation vs Force  of point 2

The number plotted is the median obtained from the data at each force value.

Update 1: I changed the plot becauase I had previously overconverted rad to rad, assuming it was degrees.

Update 2: Added Error bar to fitted data