| 摘要 |
<p>The present subject matter relates to a method for determining the quality of the measurement results of a scattered light meter (3) for measuring the particle concentration in motor vehicle exhaust gases, which device has at least one scattered light measurement chamber (26), at least one light source (4) and at least one light sensor (6a, 6b), said method comprising the following steps: determining the difference R between two scattered light sensor signals (S1, S2) which have been recorded in a reference state of the scattered light meter; determining the difference (D) between two scattered light sensor signals (M1, M2) which have been recorded in a used state of the scattered light meter; and comparing the difference (D) between the signals recorded in the used state to the reference signal difference (R) between the signals recorded in the reference state.</p> |
