Brüel & Kjær 2635 Amplifier
Manufacturer:
Model:
2635
Date:
1986
Class:
Type:
SubType:
Conditioning Amplifier
Information
USES:
* Field and laboratory measurement of vibration in terms
acceleration, velocity and displacement together with
piezoelectric accelerometer and voltmeter or measuring
Amplifier
* Field recording of vibration and other signals together
with portable tape recorders and level recorders
« Underwater sound measurements with hydrophone
* Mechanical impedance measurements
FEATURES:
• Charge Input
■ 3 digit conditioning to transducer sensitivity
■ Unified output ratings for simplified system calibration
« High sensitivity up to 10 V/pC
■ Built-in integrators for displacement and velocity
■ Switchable low and high frequency limits
■ Built-in test
Oscillator
The Charge
Amplifier Type
2635 is a comprehensively
equipped, charge conditioning
Amplifier intended for general
vibration measurements with a piezoelectric accelerometer
input and for underwater sound measurements in conjunction
with piezoelectric hydrophones. Its output will be routed to
portable tape recorders and level recorders, electronic
voltmeters, measuring amplifiers and frequency analyzers. It
can be powered from internal batteries or an external DC
Power supply and is equally suitable for portable use in the
field and for general laboratory use.
Description
Reference is made to the block diagram shown in Fig.l. The
2635 is a four stage
Amplifier consisting of an input
amplifier, low-pass filter-ampli-fier, integrator
Amplifier,
and output
Amplifier. An overload detector, test
Oscillator
and
Power supply unit are also included.
Manual type:
User Manual
Pages:
27
Size:
1.24 Mbytes (1296541 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
1986 04 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 06 01
MD5:
d8d4caecf7196e9bc4c4965b1b916373
Downloads:
923
Information
1. INTRODUCTION AND SPECIFICATIONS (PRODUCT
DATA) ... 1
2. CONTROLS
... 5
2.1. FRONT
PANEL ... 5
2.2. REAR
PANEL ... 7
3. OPERATION
...
8
3.1.
PRELIMINARY ... 8
Environment ...
8
Mounting ... 8
Battery
installation ... 8
Grounding
... 9
3.2. MEASUREMENT
PROCEDURE ... 10
Measurement Procedure using Overlay SC
0418 ... 13
3.3. USE OF INTERNAL TEST
SOURCE ... 14
3.4. USE OF EXTERNAL POWER
SUPPLY ... 14
Recharging Nickel Cadmium
Cells ...
15
Powering the 2635
...
15
3.5. ADJUSTMENT OF OUTPUT DC OFFSET
VOLTAGE ... 16
4.
CHARACTERISTICS ...
17
4.1. OVERALL
GAIN ... 17
4.2. FREQUENCY AND
PHASE ...
1 7
4.3. INFLUENCE OF CAPACITANCE
LOADING ... 18
4.4. NOISE AND DYNAMIC
RANGE ...
20
5.
ACCESSORIES ... 22
5.1. MEASURING AND RECORDING
INSTRUMENTATION ... 22
5.2. EXTERNAL POWER
SUPPLIES ... 22
B & K Measuring Amplifiers and Frequency
Analyzers ... 22
Battery Charger ZG
0113 ... 23
5.3. ACCELEROMETER CABLES AND
PLUGS ... 23
6. SERVICE AND REPAIR
Comments