Commissioning
3 - 7
Siemens AG
SPR2-130.814.01
Page 7 of 10
SIREMOBIL Compact
Medical Solutions
Rev. 01 03.01
TD PS 24
System Manual
Testing the image quality
3
SMPTE test image on the monitor (positive image display)
•
The SMPTE test image is still displayed on both monitors. If not, call up as described
above.
•
With programmed positive image display, expose a film and measure the density in the
fields 0%, 40% and 100%, enter in Table 1 and compare with the reference values
below.
Table 1: Reference values with programmed positive image display
Gray scale
Minimum
density
Nominal
density
Maximum
density
Actual values
0%
2.7
2.9
3.1
10%
2.1
2.28
2.46
n.a.
20%
1.64
1.81
1.98
n.a.
30%
1.33
1.48
1.63
n.a.
40%
1.06
1.2
1.34
50%
0.84
0.96
1.08
n.a.
60%
0.65
0.75
0.85
n.a.
70%
0.48
0.57
0.66
n.a.
80%
0.34
0.41
0.48
n.a.
90%
0.22
0.28
0.34
n.a.
100%
0.16
0.2
0.24
30%
40%
50% 50%
60%
70%
20%
80%
10%
90%
0%
100%
