Brüel & Kjær - 2635 - Verstärker
Hersteller:
Gerät:
2635
Datum:
1986
Kategorie:
Gruppe:
Untergruppe:
Informationen
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.
1 Handbuch
Bedienungsanleitung
Dokumenttyp:
Bedienungsanleitung
Seitenanzahl:
27
Größe:
1,2 MB
Sprache:
englisch
Revision:
Dokument-ID:
Datum:
April 1986
Qualität:
Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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Informationen
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