|
META TOPICPARENT |
name="StewartBoogertSpectroscopy2016" |
Focusing the camera |
|
- Plot showing sigma as a function of focal length:
|
|
> > |
- Standard deviation of the Gaussian fits to the peak as a function of the focal length:
|
|
- Obtain
values for different rotation of camera obtained using peak finder
Rotation (mm) |
2.00 |
2.50 |
3.00 |
3.21 |
3.50 |
4.00 |
4.50 |
5.00 |
Sigma values |
3.60381891499 |
3.63753847945 |
4.56762848828 |
3.64517768764 |
3.60828884108 |
3.74669667918 |
3.65238841404 |
4.74355676159 |
|
|
Rotation (mm) |
2.00 |
2.50 |
3.00 |
3.21 |
3.50 |
4.00 |
4.50 |
5.00 |
Sigma values |
3.39728720 |
4.246609001 |
3.397287201 |
3.821948101 |
3.821948101 |
4.246609001 |
3.821948101 |
3.821948101 |
|
|
> > | Peak asymmetry |
|
- Grating is centered on the mount, orientation of the blaze arrow is changed to investigate the asymmetry of the peak shape at different positions across the grating
- Peak chosen is a bright line in He at a large grating angle (micrometer setting)
|
|
META FILEATTACHMENT |
attachment="peak_asymmetry_toward.png" attr="" comment="Asymmetry of the peak for different pixel positions, with the blaze arrow pointed towards the camera" date="1480075103" name="peak_asymmetry_toward.png" path="peak_asymmetry_toward.png" size="59235" user="zyvb951" version="1" |
META FILEATTACHMENT |
attachment="asymmetry.py.txt" attr="" comment="Code to display the peak asymmetry" date="1480075804" name="asymmetry.py.txt" path="asymmetry.py.txt" size="1496" user="zyvb951" version="1" |
META FILEATTACHMENT |
attachment="Focallengthplot.png" attr="" comment="Plot of change in sigma against change in focal length" date="1480076637" name="Focallengthplot.png" path="Focallengthplot.png" size="98819" user="zyvb137" version="1" |
|
|
> > |
META FILEATTACHMENT |
attachment="sigma_focal_length.png" attr="" comment="Standard deviation of the Gaussian fits to the peak as a function of the focal length" date="1480082147" name="sigma_focal_length.png" path="sigma_focal_length.png" size="26889" user="zyvb951" version="2" |
META FILEATTACHMENT |
attachment="focus_curves.py.txt" attr="" comment="Code to plot standard devtiations as a function of micrometer settings" date="1480082332" name="focus_curves.py.txt" path="focus_curves.py.txt" size="2004" user="zyvb951" version="1" |
|