Lightmeter LM10
6.3. Calculation of flicker component
LM10 calculates the flicker component according to the following selectible procedures:
Ripple content:
In accordance with the
Standard of
Building Biology Testing Methods
SBM-2015.
Flicker%:
In accordance with
IESNA.
Luminous flux ϕ in Lumen (lm)
6.4. Measuring the flickering rate and flickering frequency
The visible spectrum must be measured using the measuring probe VL10.
To precisely measure the flicker rate and flicker frequency of a lamp, the influence of other light
sources including daylight must be avoided. The measurement must therefore be carried out in a
dark room.
The LM10 must be aligned directly to the lamp using the measuring probe VL10 and get it closer
till the measured values are stable.
Brightness of an incandescent lamp (Flicker rate 23%, flicker frequency 100 Hz)
14
W
=
Φmax – Φmin
Φmax
∗
100%
F%
=
Φmax – Φmin
Φmax
+
Φmin
∗
100 %
