Upper Limit of Resolution Determined by Slit Width in a Spectrometer
Author: RutoExecutions: 31
※ This library was created by a member. This site is not responsible for its content.
Calculates the upper limit of resolution based on slit width for astronomical spectrographs.
| Resolution (diffraction grating) | |
| Resolution (slit width) |
R = m f ρ D / ( F cosα )
R = m f ρ λ / ( w cosα )
The upper limit of resolution is the smaller of these two values.
Note that this is an approximation valid only when the slit width is sufficiently smaller than the focal length of the collimator lens.
Furthermore, this calculation provides the upper limit of resolution. The actual resolution will be lower than the calculated value due to factors such as the pixel size of the camera sensor and the signal-to-noise ratio.
R = m f ρ λ / ( w cosα )
The upper limit of resolution is the smaller of these two values.
Note that this is an approximation valid only when the slit width is sufficiently smaller than the focal length of the collimator lens.
Furthermore, this calculation provides the upper limit of resolution. The actual resolution will be lower than the calculated value due to factors such as the pixel size of the camera sensor and the signal-to-noise ratio.
No customer feedback for this calculation yet.