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4212
BRUEL & KJAER 4212 Manuals
Manuals and User Guides for BRUEL & KJAER 4212. We have
1
BRUEL & KJAER 4212 manual available for free PDF download: Instructions And Applications
BRUEL & KJAER 4212 Instructions And Applications (32 pages)
Hearing Aid Test Box
Brand:
BRUEL & KJAER
| Category:
Test Equipment
| Size: 8 MB
Table of Contents
Table of Contents
4
Introduction
5
Descripti011
7
The Anechoic Chamber
7
Loudspeaker and Regulating Microphone
8
The Artificial Ear
9
Power Supply
11
Operation
12
Adjustment of the B.F.O. Type 1022
14
Adjustment of the A.F. Spectrometer Type 2112
15
Adjustment of the Level Recorder Type 2305
16
Adjustment of the Microphone Amplifier Type 2603
18
Adjustment of the Desired Sound Pressure Level in the Test Box
19
Calculation of the Acoustical Gain
19
Automatic Recording of the Frequency Characteristic of the Llearing Aid
20
Instruction for Sandfilling
20
Instructions for Replacing the 2 CC Coupler with the 6 CC Couplers
21
Applications
24
Automatic Recording of Harmonics
24
Recording of the Frequency Response at Different Sound Levels
26
Visual Check on Frequency Characteristics
26
Some Investigations of the Acoustical Qualities of the Hearing Aid Test Box
28
Appendix
28
Microphone and the Artificial Ear
29
Specification
30
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