巻号一覧
3 巻, 7 号
選択された号の論文の7件中1～7を表示しています
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丹羽 登1964 年 3 巻 7 号 p. 483-491
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーPDF形式でダウンロード (2157K) -
川瀬 武彦, 町山 忠弘, 高橋 利衛1964 年 3 巻 7 号 p. 492-500
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーThe authors carried out some experiments for optimalizing flow control to maximize the blower output power. The controlled object consists of a single duct and a blower driven by V. S. coupling motor. The control system has two manipulated variables, namely, control valve and rotational' speed of blower.
The peak-seeking technique by the trial input is applied to detect the condition of the blower output power. The peak-seeking instruments contain no specified computers, but are mainly made of some coventional pneumatic relays and sequencial relay circuits.
The result of experiments has been fundamentally a success, but it shows that some improvement of the instruments is necessary: to quicken the transient response to comparatively large disturbance input; to simplify the peak-seeking process. In this paper, experimental approach is explained briefly.抄録全体を表示PDF形式でダウンロード (1647K) -
穂坂 衛1964 年 3 巻 7 号 p. 501-511
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーThis paper describes a real time digital computing machine for calculation of coordinate transfor-mation and other trigonometric equations. It has same functions as servo computer with analog resolvers has and is more accurate, faster and of smaller size.
When rotation angle in a plane is given, it is decomposed into many rotation steps in which'vector components transformation can be performed easily and each successive step is determined so as to reduce remaining error angle. When two components of a vector are given, its magnitude and argument are obtained by the almost same process, minimizing the remaining quadrature component. Resultant transformations are
x'=x cosφ+ysinφ
y'=-xsinφ+ysinφ or R=√x2+y2
θ=tan-1y/x
In the rotation process, at first, multiple right angle transformations, number of which is determined from the bit pattern of φ or x and y, make remaining error angle within ± 45°. Then, ±sin-12-n or ±tan-12-n are next sequences of rotations, in which component transform arithmetic is of the form a±2-mb, where a and b are results of the immediate previous arithmetic step. The functions of cascading analog resolvers are replaced by programming the time sharing use of this machine, which are possible by connecting the sequencer outputs to the control gate inputs. The machine, including the programming unit, are composed of four electromagnetic delay lines, two full adders and about ten control flip-flops and mean transformation time is about 0. 7 ms, using 1 Mc clock.
In the paper some logical design techniques and circuits are given and three examples of the application are also described.抄録全体を表示PDF形式でダウンロード (1881K) -
山口 仁雄, 伊沢 計介1964 年 3 巻 7 号 p. 512-518
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーIn On-Off control systems it is known that very good control characteristics may be obtained by proper design of the feedback compensator based upon the characteristics of controlled object. In this paper authors show that the limit cycles can be made arbitrarily small or may vanish when the compensator is designed to make the loop transfer function of linear parts besides the relay element take equivalently the form of first order lag or first order integral. Experimental result performed on analogcomputor shows great possibilities of using the feedback compensated On-Off type controller in various fields.抄録全体を表示PDF形式でダウンロード (831K) -
定位性制御対象に対して山口 仁雄1964 年 3 巻 7 号 p. 519-528
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーOn-Off control of the controlled object with static behavior, in other words the controlled object which has no pole at origin, is discussed in this paper. The amplitude of the limit cycle can be made arbitrarily small when the loop transfer function of linear parts besides the relay element takes equivalently the form of first order lag by the properly designed compensator. The transient response of the system depends on the time constant T0 of the first order lag obtained by the above mentioned way. The magnitude of T0 is so determined that the ISE becomes minimum for the step change of the reference value. By this method, such an optimal time constant denoted by Tm depends generally on the magnitude of change of the reference value. When the controlled object is expressed by a dead time plus first order lag of Tp, the optimal value Tm, of the time constant T0 becomes equal to Tp, and does not depend on the reference value. In the latter part of this paper a method for approximating e-Les/1+Tes to the transfer function of controlled objects with higher order lag is also described.抄録全体を表示PDF形式でダウンロード (1007K) -
五十嵐 寿一, 石井 泰, 杉山 清春1964 年 3 巻 7 号 p. 529-540
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーIn this paper a digital electronic correlator for analizing vibration and acoustic phenomena is presented. Two signals, to be correlated are, at first, recorded by a multi-channel tape recorder and the reproduced voltage outputs are fed into the analog-to-digital converters of the correlator. Then, the voltage inputs are converted to 4-bit binary numbers at regular sampling intervals. One of these digital signals is transported in shift register delay line and is read out at a later stage to be multiplied with the other signal. Every product of the two signals is shown as number of pulses and is accumulated by a counter.
The shift register has 11 stages and the sampling instant of A-D converters may be shifted stepwise by one-fifths of the sampling interval, within one sampling interval. Therefore, there are 55 sampling combinations in positive and negative time shift respectively. The correlation of the input signals is calculated one by one with these combinations. The number of samples to be calculated may be set arbitrarilly in the correlator.
This device consists of about 400 transistor logical elements and is applicable to the input signals up to 5 kc. Many auto-and cross-correlation functions have been determined with this device. Several of these reults are also shown in this paper.抄録全体を表示PDF形式でダウンロード (1962K) -
比護 和治, 野上 巌, 立岩 幸治1964 年 3 巻 7 号 p. 541-547
発行日: 1964/07/10
公開日: 2010/10/21
ジャーナル フリーPDF形式でダウンロード (993K)
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