General Radio Company 1630-A Other
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Model:
1630-A
Date:
1962
Category:
Group:
Description:
INCREMENTAL INDUCTANCE BRIDGE
Information
The Type 1633-A Incremental Inductance Bridge (Figure 1-1)
is designed to measure inductors and resistors, both linear
and nonlinear, over a wide range of ac and dc signal levels.
Direct-reading measurements can be made over a broad
frequency range.
1.2 DESCRIPTION.
1.2.1 GENERAL. The Type 1633-A Incremental Inductance Bridge
includes a unique bridge circuit and a highly selective
detector. It is direct reading in series inductance
(Ls) and either series resistance (Rs) or storage factor (Q)
at nine commonly used frequencies between 50 cps and 15.75
kc. It features single-knob controls for the measurement of
L, R, or Q, and combines simplicity of operation with very
high voltage- and current-handling capabilities. The signal
losses in the bridge are small; thus the voltage and current
through the unknown are nearly identical in both amplitude
and waveform to the respective voltage and current applied
at the Generator terminals. In many instances measurements
can be made while the inductor is actually operating in its
circuit.
Manual type:
Service and User Manual
Pages:
47
Size:
9.66 Mbytes (10124404 Bytes)
Language:
english
Revision:
Manual ID:
1633-0100-A
Date:
1962 06 01
Quality:
Scanned document, all readable.
Upload date:
2016 12 30
MD5:
e617120506f0d8339dd49b6c050da01c
Downloads:
896
Information
Section 1.
INTRODUCTION ...
1
1.1
Purpose ...
1
1.2
Description ...
1
1.3 Symbols, Abbreviations, and
Definitions ... 3
1.4 Series and Parallel
Components ...
3
1.5 Accessories
Supplied ...
4
1.6
Mounting ...
4
1.7 Type 1630 Inductance Measuring
Assemblies ... 4
Section 2. OPERATING
PROCEDURE ...
5
2.1
Installation ...
5
2.2 Use at Frequencies Indicated on Panel (Internal
Detector). . 5
2.3 Use at Other
Frequencies ...
7
2.4 Possible Sources of
Error ...
7
Section 3. PRINCIPLES OF
OPERATION ... 10
3.1 General. .
~ ... 10
3.2 Bridge
Circuit ... 10
3.3 Isolation
Amplifiers ... 11
3.4 Operational
Amplifier ... 11
3.5
Standards ... 12
3.6 Internal
Detector ... 12
3.7 Compensation
Techniques ... 12
3.8 Protective
Devices ... 13
Section 4.
APPLICATIONS ... 14
4.1 Measurements of Iron-Cored
Coils ... 14
4.2 AC Resistance
Measurements ... 17
Section 5. SPECIAL
MEASUREMENTS ... 18
5.1
General ... 18
5.2 Grounded
Unknowns ... 18
5.3 Use with Higher
Currents ... 18
5.4 Three-Terminal
Measurements ... 18
5.5 Use with Nonsinusoidal
Waveforms ... 19
5.6 Remote
Measurements ... 19
5.7 Measurement of Mutual
Inductance ... 19
5.8 Limit
Testing ... 20
5.9 Use at Other
Frequencies ... 20
5.10 Displaying AC Hysteresis
Loops ... 21
Section 6. SERVICE AND
MAINTENANCE ... 22
6.1
General ... 22
6.2 Noisy or Erratic
Balances ... 22
6.3 Bridge Error at Low
Frequencies ... 22
6.4 Bridge Will Not
Balance ... 22
6.5 Calibration
Procedure ... 24
7.1
General ... 24
7.2 Operating
Procedure ... 24
7.3 Alternating Current in the DC
Supply ... 24
7.4 Maximum Direct Current in the AC
Supplies ... 24
7.5 Meter
Readings ... 24
7.6 Possible Resonance of DC Supply Capacitor with Inductor
Under
Test ... 26