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BROEL
&
KJ~R
instruments cover the whole field of sound and vibration measurements.
The main groups are:
ACOUSTICAL MEASUREMENTS
Condenser Microphones
Piezoelectric Microphones
Microphone Preamplifiers
Hydrophones
Sound Level Meters
Precision Sound Level Meters
Impulse Sound Level Meters
Noise Dose Meters
Noise Level Analyzers
Standing Wave Apparatus
Calibration Equipment
Reverberation Processors
Sound Sources
ACOUSTICAL RESPONSE TESTING
Sine Generators
Random Noise Generators
Sine-Random Generators
Artificial Voices
Artificial Ears
Artificial Mastoids
Hearing Aid Test Boxes
Audiometer Calibrators
Telephone Measuring Equipment
Audio Reproduction Test Equipment
Tapping Machines
Turntables
VIBRATION MEASUREMENTS
Accelerometers
Force Transducers
Impedance Heads
Accelerometer Preamplifiers
Vibration Meters
Accelerometer Calibrators
Magnetic Transducers
Capacitive Transducers
Complex Modulus Apparatus
Bump Recorders
VIBRATION TESTING
Exciter Controls -
Sine
Exciter Controls- Sine- Random
Exciter
Equalizers.
Random or Shock
Exciters
Power Amplifiers
Programmer Units
Stroboscopes
STRAIN MEASUREMENTS
Strain Gauge Apparatus
Multipoint Selectors
MEASUREMENT AND ANALYSIS
Voltmeters
Phase Meters
Deviation Bridges
Measuring Amplifiers
Band-Pass Filter Sets
Frequency Analyzers
Real Time Analyzers
Heterodyne Filters and Analyzers
Distortion Measuring Equipment
Psophometers
Statistical Distribution Analyzers
Tracking Filters
RECORDING
Level Recorders
Frequency Response Tracers
Tape Recorders
Alphanumeric Printers
Digital Event Recorders
DIGITAL EQUIPMENT
Computers
Tape Punchers
Tape Readers
Bri.iel & Kjcer
DK-2850 NJERUM, DENMARK
.
Telephone:
+
45280o5oo . Telex: 37316 bruka dk
Instruction Manual
Heterodyne Analyzer Type 201 0
033-0074
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2010
A versatile 3-in-1 precision instrument for
linear and logarithmic frequency analysis of
sound. vibration or electrical sources, and
frequency response measurement of sys-
tems, in the range 2Hz to 200kHz.
It incor-
porates a wide-range measuring amplifier,
a tunable selectable-bandwidth bandpass fil-
ter and a sinewave generator slaved to the
centre frequency of the filter
.
It
features au-
tomatic tuning for swept-frequency record-
ing
,
precise digital and dial indications of
frequency, extensive facilities for local and
remote control of characteristics including
bandwidth and averaging times, and a com-
pressor loop for remote regulations of the
generator output.
+
BrUel
&
Kjcer
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