DEVICE AND METHOD FOR CALIBRATING A SCATTERED LIGHT METER

摘要

A calibrating device according to the invention for calibrating a scattered light meter designed to measure a particle concentration in motor vehicle exhaust gases has at least one scattering body (2) comprising a plurality of scattering centres (6) that have a defined size and defined mutual spacing. The scattering centres (6) are disposed such that when the scattering body (2) is irradiated with light (11) from a light source (10), said scattering body emits scattered light (20) having an intensity and distribution predetermined by the scattering body (2).