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BRUEL & KJAER 2512 User Manual

BRUEL & KJAER 2512
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4.4. USE WITH THE TAPE RECORDER TYPE 7005/6
The Tape Recorder Type 7005 is a multichannel instrumentation tape recorder, powered from
internal batteries making it completely portable. The three
FM
channels, and low sensitivity to
external vibration, make it highly suitable
for
recording simultaneous 3 axis human vibration
measurements
in
the field, prior to analysis on the Type
2512.
A typical system for recording a
three-axis signal from the Seat Transducer Type
4322
or
Triaxial Accelerometer
4321
is shown
in Fig.4.9. and a typical analysis system using the 2512 is shown in Fig.4.10.
Charge Amplifiers
Type 2635
x------
v-----
z
-----
Triaxial Accelerometer
Type 4321
~
Ac~::~~;;~;er
~
Type4291
Triaxial
Seat
-Accelerometer
Type 4322
Tape Recorder
Type 7005
810430
Fig.
4.9.
Recording 3-axis vibration using the Tape Recorder Type 7005
for subsequent analysis on the 2512
Tape Recorder 7005
0 dB
Adaptor
WB
0251
20 dB Adaptor
WB
0706
Attenuator Set
WB
0473
~:
~
~
-
Electronic Voltmeter
2425
Measuring
Amplifier
2610
Measuring
Amplifier
2636
Adaptor
WB
0251 or
WB
0706
Human-
Response
Vibration Meter
2512
810467
Fig.
4.
10.
Replay
of
vibration signals from a Tape Recorder Type 7005 for
analysis
by
the 2512
The input
of
the 2512 is a charge input designed to accept a unigain accelerometer with a
sensitivity of unity. A voltage output such as that from the Tape Recorder Type 7005/6 must
37

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BRUEL & KJAER 2512 Specifications

General IconGeneral
BrandBRUEL & KJAER
Model2512
CategoryMeasuring Instruments
LanguageEnglish

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