35,0(6
Cube L1
26
Revision 01/2019 EN
12.3
Series measurement
Always start a measurement series with the smallest power and increase it gradually.
Small amounts of energy should be measured with absorber temperatures that are
close to the ambient temperature.
In general:
The minimum amount of irradiated energy should amount to approximately twenty times
the difference of the absorber temperature minus room temperature, so at least 200 J.
In case of subsequent measurements, the residual capacity of the absorber for another
laser pulse has to be considered. Fig. 12.4 on page 26 shows information for select-
ing the energy permissible for a series measurement in conjunction with the absorber
temperature.
Max. energy input
Min. energy input
100
Permissible measuring energy in J
1 000
5 000
10 000
25
20
30
35
40
45
50
55
60
65
70
Absorber temperature in °C
1
st
measurement 200 J
2
nd
measurement 400 J
3
rd
measurement 800 J
5
th
measurement 2 000 J
4
th
measurement 1 600 J
Fig. 12.4: Example of a series measurement in conjunction with the absorber temperature
If the absorber temperature is greater than 70
°C, it won’t be possible to take any fur-
ther measurements. In this case, please wait until the temperature falls to below 50
°C
(depending on the energy application selected). Please take the limit values from Fig.
12.4 on page 26.
