All issues
Successor
- IEEJ Transactions on Sensors and Micromachines
- IEEJ Transactions on Industry Applications
- IEEJ Transactions on Electronics, Information and Systems
- IEEJ Transactions on Power and Energy
- IEEJ Transactions on Fundamentals and Materials
- The Journal of The Institute of Electrical Engineers of Japan
- The transactions of the Institute of Electrical Engineers of Japan.C
- The transactions of the Institute of Electrical Engineers of Japan.B
- The transactions of the Institute of Electrical Engineers of Japan.A
Volume 43, Issue 424
Displaying 1-7 of 7 articles from this issue
- |<
- <
- 1
- >
- >|
-
[in Japanese]1923 Volume 43 Issue 424 Pages 845-858
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSDownload PDF (4507K) -
H. NUKIYAMA, T. KUWASHIMA1923 Volume 43 Issue 424 Pages 859-869
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSThe voltage amplification ratio of the triode valve resistance amplifier is measured in the audio frequency range by means of an alternating current potentiometer As the source of the alternating current, Triode valve oscillator is used.
The relation between the amplification ratio and the resistance in the plate circuit and the amplitude of the impressed alternating voltage at the grid, is studied experimentally. It is observed that in the amplifier which has a grid condenser, the grid average voltage is affected to a great extent by the input grid alternating potential due to the rectifying action and this will cause the change of the amplification ratio by the change of the amplitude of the input grid alternating potential.
From the static characteristics with the resistance in the plate circuit, which is called the resistance static characteristics, all the dynamical phenomena are explained (March, 1923)View full abstractDownload PDF (569K) -
H. HO1923 Volume 43 Issue 424 Pages 870-875
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSIt is shown, that the exact circle diagram of polyphase induction motor canbe derived in a simple and easy manner, without using inversion and other troublesome processes, by applying the principle of superposition of currents.View full abstractDownload PDF (253K) -
YASUSI WATANABE1923 Volume 43 Issue 424 Pages 876-892
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSAlternating E. M. F. at extra-low frequency, say from a fraction of acycle to several cycles per second, can be derived from a separately excited D. C. generator, when the brushes are slowly revolved by some mechanical means around the commutator. The frequency is given by the number of revolutions per second of the brushes multiplied by the number of pairs of poles of the generator. The magnitude of the E. M. F. may be varied by the field excitation.
One of the various applications of the extra-low-frequency E. M. F. is the determination of mechanical constants of electrical measuring instruments. The method is based on the fact that the amplitude characteristic of the forced vibration of the moving system reveals resonance for certain frequency of the impressed E. M. F.
Test results are given for the instruments of the moving coil type, the moving iron type, the electrodynamometer type and the hot-wire type.
It is ascertained that measuring instruments of industrial use generally have natural frequencies less than two to three cycles per second, and that many of them have small value of bluntness, i. e., insufficient damping effect.
Hysteresis phenomena are observed for instruments of permanent magnet type, and even jumping phenomena for those with very small bluntness.
This method of study was first suggested to the author by Prof. H. Yagi, to whom the author's sincere thanks are due. (Sendai, june 1923)View full abstractDownload PDF (1852K) -
S. BEKKU1923 Volume 43 Issue 424 Pages 893-913
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSThe detail of the artificial three phase transmission line built at the Electrotechnical Laboratory is fully described in this paper. The electrostatic and electromagnetic requirements to represent the three phase transmission line are discussed, special endevour was paid to fulfil the electromagnetic property to conform with the actual results of writer's two experiments.
The condensers representing the electrostatic capacity of the line, and the inductance coils representing the electromagnetic property of the lineare all constructed at the Laboratory, the detail of the condensers was already described in the January issue of this Joumal. The combination of condensers and inductance coils was carefully carried out to maintain the perfect balancing of each phase and the results were very satisfactory.
The whole line is consisted of hundred II sections, the equivalent length was measured to be 517.1 Kilometers, which can he used as two parallel lines of length 256.5 Kilometers and 258.6 Kilometers.
The line is capable of working at 5200 volts continuously at 50. cycles.
With a slight modification of connection, the artificial line can represent another line of different constants 329.8 Kilometers long, in the steady state as well as in the transient state. With the steady state only, this artificial line can represent another three phase line of 402.3 Kilometers with a furtherr slight modification of connection.
From the measured values of the line constants. the propagation constants were calculated and the voltage distribution along the line was worked out which agreed fairly well with the actual measurement.
In the appendix, the preliminary test performed on the flat inductance coils is described with a note on the actual cost of the artificial transmission line.View full abstractDownload PDF (2784K) -
F. SHIN1923 Volume 43 Issue 424 Pages 914-918
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSWith the intention of ascertaining whether the electrostatic disturbances of aerial lines can be anticipated from the change of capacities between lines or not, the writer has made special investigations in both theory and experiment.
The capacities between lines have been measured by means of counting the beats produced in radio-oscillators, the result of which fairly coincides with the theoretically obtained.View full abstractDownload PDF (197K) -
HIDETSUGU YAGI1923 Volume 43 Issue 424 Pages 919-920
Published: 1923
Released on J-STAGE: November 20, 2008
JOURNAL FREE ACCESSDownload PDF (251K)
- |<
- <
- 1
- >
- >|