DURAG GROUP Scattered Light Principle - Backward Scattering

As with forward scattering, the laser beam encounters dust particles in the stack. In backward scattering, a detector is used to measure the intensity of the light that is scattered backwards by the dust particles.  

- Our product: D-R 320
- Application: For continuous, contactless measurement of low to medium dust concentrations in dry flue and process gases. Also suitable for corrosive gases and potentially explosive atmospheres. Usable for example in Refineries.