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Fixed Osc. 200kHz:
Var. Osc. 200-240kHz:
Ext. Input:
OUTPUT:
2.2.3. Vibration Meter Section
(Fig. 2.10)
A BNC socket providing a 200kHz squarewave signal. The output is
intended for use with the high frequency input of the Slave Filter Type
5888, or the Narrow Band Random Noise Unit Type 5887. Refer to the
Type 5888 and Type 5887 Instruction Manuals for further
details.
A BNC socket providing a squarewave signal with a frequency variable
from 200 to 240kHz. The output is intended for supplying the high
frequency input of a slave filter. Refer to the Type 5888 Instruction
Manual for further details.
A BNC socket for connecting the Narrow Band Random Noise Unit
Type
5887.
This enables generation of narrow band random noise with
a bandwidth centred around the generator frequency of the Vibration
Exciter Control Type 1 050.
7 V
L
90°
and
7 V
L
0°:
Two 7 V RMS output signals are available with
90° phase difference. Maximum load is 10kQ shunted by 1 nF. These
signals can supply the Multiplier Type 5795 with the sine and cosine
waveforms of the generator frequency, from which the real and imagi-
nary signal components can be generated. Either of the outputs will
provide the frequency control signal for a motion analyzer, such as
Digital Stroboscope Type 4913 (refer to section 4.3).
0-10V: A BNC socket used to connect the 10V RMS sine output of the
generator to a vibration exciter via a power amplifier. Output is contin-
uously variable from 0 to 10 V RMS, the amplitude being controlled
either manually or by the compressor. This socket is duplicated on the
front panel.
,.....----Vibratton Meter-----.
E~tt.
filter lnJOUt
C.og.
DC
Output
Fig. 2.10. Vibration Meter Connectors and Sensitiv-
ity Selector
Ext. Filter In/Out:
An 8-pin DIN socket for insertion of an external filter for filtering the
compressor and vibration meter circuits of the Vibration Exciter Con-
trol. The Slave Filter Type 5888 is suitable for this purpose as it is
controlled by the 1 050.
17
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