G ... IN
CONTROL
CIRCUIT
20
dB
3-ST"'GE
INPUT
... LC
BAND-STOP
RMS
PRE "'MP.
DETECTOR
"'TTN.
FILTER
G ... IN
CONST "'NT LEVEL
MEASURING
�IRCUIT
INPUT
MEASURING
CIRCUIT
E
R
DEVIC
UNDE
TEST
OUTP UT
... MPLlTUDE
LOG
CONVERTER
CONST ... NT"
INPUT
CO
��i��r
... MPLlTUDE
LOG
CONVERTER
REF.
LEVEL
+
LEVEL
CONTROL
CIRCUIT
-
R ... MP
GEN
LEVEL
0
CONTROL
00
"'LC
SWEEP
OUTPUT
FREOUENCY
... MPLIFIER
OSCILLATOR
+
3V DC BIAS
(FOR TR ... CKING
POTENTIOMETER)
OISTORTION
INPUT FREOUENCY
RE
C.
RE
C .
RE
OUTP
UT
ENCY
ROL
FREOU
CONT
EX'
" REFERS TO
-�
DEVICE UNDER
TEST
OUT PUT
ENCY
FREOU
Fig. 7. Block diagram of BKF10.
SPECIFICATIONS
Distortion meter
Fundamental frequency:
20 Hz to 20 kHz
Harmonics and noise (--3 dB):
10 Hz to 150 kHz
Distortion range:
0.02% to 10%
Accuracy (0.1%-10% distortion): ± 1 dB
Intrinsic distortion:
<0.02%
Input voltage limits:
10 mV--30 V
Input impedance: Vi" = <3 V
1 MfI
Vi"= <30 V
10 kfl
Input noise voltage:
(BW=150kHz)
Pre-amp. dynamiC range:
Min. sweep time (20 Hz-20 kHz):
SIN
range:
Recorder output voltage:
HP-LP filter: Cult-off frequency
Attenuation
Input/output ratio meter
Frequency range:
Measuring range:
Accuracy:
Recorder output voltage:
<Sp.V rms
50 dB
approx. 1 min.
-80
dB to -20 dB
Vdc=log k [Volt) (100%-k=1)
k = distortion factor
250 Hz
20 dB
20 Hz to 20 kHz
-40 to +90 dB
±1 dB
Vdc=log
V
INPUT
[Volt)
V
OUTPUT
Input frequency meter
Measuring range:
Accuracy:
Recorder output voltage:
Oscillator
Frequency range:
Output freq. control:
Accuracy of frequency:
Time constant of fraq. reg.:
Harmonic distortion:
Output voltage (EMF):
Accuracy of output voltage:
Output impedance:
Output voltage control:
Input voltage control:
Time constant of V output reg.:
Power requirements:
Ambient temp. range:
Storage temp.:
Dimensions (W
x
H
x
D):
Weight:
Accenorlu supplied:
Patents:
EXT .... MP LITUDE
ROL
CONT
20 Hz to 20 kHz
±5%
Vdc = log
---L-
[Volt)
20 Hz
20 Hz to 20 kHz
Vdc=log
20fHZ
[Volt]
±5%
0.16 s
<0.01%
1 mV to 1 V
±0.5 dB
SOOfl
Vdc = log
V
OUTPUT
[Volt)
1V
Vdc = log
V
INP�
[Volt]
1 v
0.25 s
115/220 V (95-130/190-260),
47.5-63 Hz, 50 VA
+ 5°C to + 40°C
-40°C to + 70°C
440 X
144
X 344
mm
9.5 kg
Operating Instructions
Power cord
US
and other
patents pending
1
Содержание BKF10
Страница 8: ...RADIOMETER COPENHAGEN _...
