Specifications - BRUEL & KJAER 1018 Instructions And Applications

Automatic vibration exciter control
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Specifications
I
OSCILLATOR SECTION
I
Frequency Range:
5-5ooo c/s
and
5-10
kc/s.
Frequency Scale: Logarithmic from
5-5ooo c/s.
Frequency Accuracy: 1
%
±
o.25 c/s.
Output Voltage:
Max.
10
volts.
Max. Load: 10 k.Q.
Output Voltage Accuracy: Better than
±
o.5
decibel in the
frequency
range
5-5ooo c/s and better
than
±
1 decibel for frequencies between
5 and
10ooo
c/s.
Waveform: Maximum distortion in the
frequency
range
5-10ooo c/s,
o.5
%
without
compressor.
Maximum distortion with compressor
o.5
%
for higher
frequencies,
and 1
%
for 10
c/s
at the lowest
compressor speed.
Hum Voltage: At least 65 decibels below full
output.
Scanning Speed: Variable in 22
steps
from 3.1 to
315
degrees per
minute.
Frequency Limit Controls: Front panel
set-screw adjustment.
Automatic Cross-over Control:
Cross-over frequency
may be adjusted over
the frequency range 10-500 c/s.
I
VIBRATION METER SECTION
I
1.
Velocity Pick-up as Controlling Element.
Displacement Ranges: Full
scale
readings
o.01" (o.025 em), o.1" (o.25 em)
1"
(2.5
em), and 10"
(25
em), peak-to-peak value.
Accuracy
±
4
%
from
10-2ooo c/s. Approximately 4
%
down
at 5 c/s.
24

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