REPLACABLE MEASUREMENT MICROPHONE
FIG1 shows a top view of part of a wing of an airplane with an array of surface mountable microphones
FIG1 shows a top view of part of a wing 1 of an airplane with an array 2 of surface mountable microphones 3 attached to the wing 1. Each of these microphones 3 is connected by a coax-cable 4 to a signal analyzer 5. During a test flight or within a wind tunnel, wing 1 is exposed to a laminar air stream 6 that may cause turbulences in an area 7 and vibrations in an area 8. As a result of this test, wing 1 needs to be reworked to improve the aerodynamics, for which work microphones 3 need to be detached first. After the rework has been finished, microphones 3 need to be attached again for the next test to check the improvement. It is essential to attach each of the microphones 3 to exact the same position on wing 1 where it was attached during the first test to ensure comparability of the tests to detect whether or not the rework helped to reduce turbulences and vibrations on wing 1.
view
17
attraction force
5
analyzer
12
Mounting means
14
screw
11
electrical connector
19
area
18
truncated cone areas
9
case
2
array
20
area
21
transparent plastic ring
16
metal ring metal rings
10
microphone case part
15
magnets
13
case mounting means
['5. Microphone (3) according to claim 4, wherein the positioning means are realized by truncated cone areas (18) of the case mounting means (13) and the surface mounting means (16).', '6. Microphone (3) according to any of the claims 2 to 5, wherein the case (9) comprises: a microphone case part (10) that protects the microphone (3) and is connected to case mounting means (13), which forms a back volume for the microphone (3).', '7. Microphone (3) according to any of the claims 2 to 6, wherein the electrical connector (11) is arranged on the case (9) separated from an area (19) of the case mounting  means (13) that mechanically connects to an area (20) of surface mounting means (16) to enable electrically passive surface mounting means (16).']