Difference between revisions of "Report"
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| + | ===Analysis Steps for ImageJ === | ||
| + | Steps: | ||
| + | #Open images before & after. | ||
| + | #Image -> Type -> 8-bit | ||
| + | #Select a square frame around sample | ||
| + | #Choose the same Threshold value for both pictures. All above threshold 255, all below 0. | ||
| + | #Note!!! This threshold includes different percentage of picture light for different pictures. | ||
| + | #Analyze -> Set measurements -> Area (area = sum of number of pixels that have non-zero values). | ||
| + | #Frame the region of interest and right click and choose "Measure". | ||
| + | #Results tab should appear. | ||
| + | #Calculate reduction factor: | ||
| + | Reduction = ((Before−After)/Before)×100% | ||
| − | |||
| − | |||
| − | [[File:Screenshot 2025-04-01 223213.png|thumb|Sample 7 before]] | + | |
| − | [[File:Screenshot 2025-04-01 223148.png|thumb|Sample 7after]] | + | ===Results of Cleaning=== |
| + | |||
| + | *Sample 7: KS115 Isopropanol | ||
| + | Before: | ||
| + | - threshold 20 | ||
| + | - included 6.61% of light histogram | ||
| + | - area: 148996, mean: 64.895, integrated density: 9669090 | ||
| + | After: | ||
| + | - threshold 26 | ||
| + | - included 6.51% of light histogram | ||
| + | - area: 152096, mean: 57.270, integrated density: 8710545 | ||
| + | |||
| + | |||
| + | [[File:Screenshot 2025-04-01 223213.png|thumb|Sample 7 before]] [[File:Screenshot 2025-04-01 223148.png|thumb|Sample 7after]] | ||
Revision as of 20:42, 1 April 2025
Cleaning and stress tests done to solder flux samples
Cleaning
Each sample was wiped for 30 seconds with the corresponding cleaning agent. In the case Tickopur an ultrasonic bath was used at 30°C temperature for 10 min each step and a rinse in DI water.
Analysis Steps for ImageJ
Steps:
- Open images before & after.
- Image -> Type -> 8-bit
- Select a square frame around sample
- Choose the same Threshold value for both pictures. All above threshold 255, all below 0.
- Note!!! This threshold includes different percentage of picture light for different pictures.
- Analyze -> Set measurements -> Area (area = sum of number of pixels that have non-zero values).
- Frame the region of interest and right click and choose "Measure".
- Results tab should appear.
- Calculate reduction factor:
Reduction = ((Before−After)/Before)×100%
Results of Cleaning
- Sample 7: KS115 Isopropanol
Before:
- threshold 20 - included 6.61% of light histogram - area: 148996, mean: 64.895, integrated density: 9669090
After:
- threshold 26 - included 6.51% of light histogram - area: 152096, mean: 57.270, integrated density: 8710545
