Table of Contents
Advertisement
PROBE
FEEDBACK WINDING
EXCITATION WINDING
SIGNAL
IN
INPUT
FILTER
PROBE
FEEDBACK WINDING
EXCITATION WINDING
SIGNAL
IN
INPUT
FILTER
PRECISION VOLTAGE
TO CURRENT
CONVERTOR
FEEDBACK
CURRENT
2
2
F
o
PROBE
EXCITATION
OSCILLATOR
2F
o
+7V
0V
-7V
Figure 5 Mag-01 SYSTEM SCHEMATIC
SUMMING AMPLIFIER &
PRECISION VOLTAGE TO
CURRENT CONVERTOR
FEEDBACK
2
CURRENT
S
2
F o
SWITCHED
OFFSET CONTROL
m
0-90 T IN
m
+ -
10 T STEPS
PROBE
EXCITATION
OSCILLATOR
DUAL
PRECISION
REFERENCE
2F
o
+7V
REGULATED
POWER
SUPPLY
0V
-7V
Figure 6 Mag-01H SYSTEM SCHEMATIC
DR0226(3)
OUTPUT
FILTER
-3dB @ 10Hz
REGULATED
POWER
SUPPLY
+6V
POWER
ON / OFF
DR0223(4)
RANGE
CONTROL
SWITCH
ATTENUATOR
X10
IC
X1
50
40
60
30
70
20
80
10
90
0
+
-
ON
ON
OFF
POWER
ON / OFF
OM0382 ISSUE 8 PAGE 14 OF 14
A-D CONVERTOR &
4 1/2 DIGIT LCD
+19.999
+
ANALOG
OUTPUT
-
0v
DEMODULATOR
12V d.c.
INLET
6V 1.1Ah
SEALED BATTERY
0v
A-D CONVERTOR &
4 1/2 DIGIT LCD
+19.999
+
-
ANALOG
OUTPUT
0v
OUTPUT
FILTER
-3dB @ 10Hz
DEMODULATOR
12V d.c.
INLET
+6V
6V 1.1Ah
SEALED BATTERY
0v
CONSTANT VOLTAGE
BATTERY CHARGER
CHARGE INDICATOR
CONSTANT VOLTAGE
BATTERY CHARGER
CHARGE INDICATOR
Advertisement
Table of Contents
