Table Of Contents - BRUEL & KJAER 4152 Instructions And Applications

Contents
Page
I. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3
General ..... . ....................................................
3
2 em 3 Coupler
........... .. ....................................... 4
6
~m3
Coupler .................................................... 6
2. Operation ...... ....... . .. .... .................... ....... ...... . ..
9
Operation of the Artificial Ear . . ...... ... ... ..... ................. 9
Operation of a Complete Arrangement for the Testing of the Earphone 10
Artificial Ear in Connection with the Precision Sound Level Meter .. 13
3.
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
16
Automatic Recording of Harmonics in Earphones . .. . . . . . . . . . . . . . . . . . 16
Some Typical Examples of Coupler Adaptation . . . . . . . . . . . . . . . . . . . . . . 17
4. Appcndix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
Influence of Vibration ............ .. . ....... .. ........ . ... ... ..... 20
Use of protecting cover in the 6 cm
3
Coupler ... ........ ..... ...... .. 22