SINUS Tango Plus - Configuration for Electrical Test; Frequency Response of the Microphone - Configuration for Electrical Test

3.3 Configuration for electrical test
3.3 Configuration for electrical test
For eletrical testing use the equivalent electrical impedance device K65 (figure 3.10) only. Table 3.7 descri-
bes its properties.
Figure 3.10: Image of K65
Feature Value
Model Transducer type Equivalent electrical impedance for 1/2”
Mikrophone preamplifyer
Capacitance CE 22 pF
Temperature range +20 . . . +60
◦
C
Diameter 17 mm
Length 60 mm
Weight 46 g
Table 3.7: Technical data of K65 (800030.3)
This configuration is dedicated to type approval test only. “Direct connection” must be selected under “Functi-
ons > Device > Options > Microphone Connection”.
3.3.1 Frequency response of the microphone - Configuration for electrical test
100 1k 10k
−4
−2
0
2
f / Hz
Amplitude / dB
TangoPlus Frequency Generator
Tolerance
mid frequency cut-off frequency Correction value
in Hz in Hz in dB
50 44,7 0,00
63 56,2 0,00
80 70,8 0,00
100 89,1 0,00
125 112 0,00
160 141 0,00
200 178 0,00
250 224 0,00
315 282 0,00
400 355 0,00
500 447 0,00
630 562 0,00
800 708 0,00
1000 891 0,00
mid frequency cut-off frequency Correction value
in Hz in Hz in dB
1250 1122 0,00
1600 1413 0,00
2000 1778 0,00
2500 2239 0,00
3150 2818 0,00
4000 3548 0,00
5000 4467 0,00
6300 5623 0,00
8000 7079 0,00
10000 8913 0,00
12500 11220 0,00
16000 14130 0,00
20000 17780 0,00
- - -
Table 3.8: Correction to the frequency raw data for the Configuration Electrical test.
SINUS Messtechnik GmbH 37 of 47 Manual Tango_Plus