6.5.4 Test Questions
1. What units are in IR-radiometer?
2. What surface temperature intervals can remote observations be accomplished
with the IR-radiometer?
3. What is the instrument error of the remote temperature T s measurement with the
IR-radiometer?
6.6 Practice 5
6.6.1 Objectives
1. Study the device, principle of operation, and methodology of the remote
measurement of the surface temperature with the automatic, one-channel
IR-radiometer.
2. Master the remote measurements by IR-radiometer included to the laboratory
complex “IR-radiometer–Computer”.
3. Carry out testing the IR-radiometer.
Table 6.1 Results of IR-radiometer calibration
T r [
C]
T s À T r [
C]
T r [
C]
T s À T r [
C]
T s [
C]
T s À T r [
C]
36.3
0.4
35.8
0.4
35.3
0.5
35.1
0.5
35.0
0.4
34.4
0.3
34.5
0.1
34.0
0.3
33.9
0.0
33.5
0.1
33.0
0.2
32.2
0.1
31.6
À0.1
31.3
0.1
31.2
0.0
30.9
À0.2
30.6
À0.2
30.3
À0.2
29.9
À0.2
29.6
À0.2
29.4
À0.2
29.1
À0.3
28.7
À0.4
28.4
À0.6
28.0
À0.6
27.6
À0.5
27.5
À0.7
27.2
À0.6
26.8
À0.7
26.6
À0.8
26.4
À0.8
25.8
À0.9
25.6
À0.9
24.9
À0.9
24.8
À0.9
24.6
À1.0
24.4
À1.2
23.9
À1.4
22.9
À1.4
22.3
À1.6
21.7
À1.6
20.9
À1.7
19.9
À2.2
19.5
À2.0
19.1
À2.0
18.8
À2.2
18.3
À2.2
17.4
À2.3
17.0
À2.3
16.8
À2.4
16.7
À2.4
16.3
À2.3
16.1
À2.5
15.8
À2.5
15.4
À2.6
15.0
À2.6
14.5
À2.7
14.3
À2.8
14.2
À3.0
13.6
À2.9
13.4
À2.8
T r is the IR-radiometer reading, T s is the contact measurement
60
6 Construction and Operation of the Automated One-Channel IR-Radiometer