DHR/AR Series SALS Accessory Getting Started Guide Page 22
Calibrating the Scattering Angle
Calculation of the Scattering Angle
The relationship between the scattering angle and the pixel position on the sensor can, in principle, be cal-
culated directly from the characteristics of the optical system, but variables such as the lens and sensor
positions are not known sufficiently precisely to make this a reliable way of determining that relationship.
Mie Scattering
A more accurate method of obtaining the relationship between the scattering angle and the pixel position is
to calibrate the system using the scattering pattern obtained from a well-characterized sample.
The Mie scattering pattern from the sample previously used for system alignment can be used for this
purpose.
Figure 12 Mie scattering.
To Next Page
Loading...
Need help?
General
