計測と制御
Online ISSN : 1883-8170
Print ISSN : 0453-4662
ISSN-L : 0453-4662
3 巻, 11 号
選択された号の論文の11件中1~11を表示しています
  • 磯部 孝
    1964 年 3 巻 11 号 p. 805-806
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • 森村 正直, 山本 弘, 高田 誠二, 飯塚 幸三
    1964 年 3 巻 11 号 p. 807-818
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • 江崎 英雄
    1964 年 3 巻 11 号 p. 819-826
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • データを処理するシステムについて
    中村 一郎, 大野 豊, 間野 浩太郎
    1964 年 3 巻 11 号 p. 827-834
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • 若月 豊
    1964 年 3 巻 11 号 p. 835-846
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • 森竜 太郎
    1964 年 3 巻 11 号 p. 847-853
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
  • 中原 寿喜太, 坂手 邦夫
    1964 年 3 巻 11 号 p. 854-861
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
    Presented in this paper are a high-performance “photo-tube type frost-point meter for low humidity” which can work at the frost-point below -40°C and a saturator for low humidity to check the frost-point meter, both of which show fairly good result. Satisfactory result was obtained by picking up and solving the following problems :
    1) Increase of amplifier gain resulting from decrease of water vapour pressure inclination.
    2) Improvement of mirror and mirror body.
    3) Error due to water dehydration out of gas passages and test room wall.
    4) Error caused by the form of frost attaching the surface of mirror, etc.
    As a new type of amplifier, a variant of multi-vibrator was made from the authors own designand good result was obtained even for large input. The characteristics of the frost-point meter made in this way is quick in response (approximately within '30 sec.) and is able to measure approximately from -70°C to 0°C. Its accuracy is within ±1.0° at the temperature lower than -40°C.
  • 後藤 圭司, 井伊谷 鋼一
    1964 年 3 巻 11 号 p. 862-866
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
    Size measurement of solid particles has been generally performed for a test sample. In such a conventional measurement, however, it needs much time and trouble to get a test sample from a process line. Discussed in this paper is a method of particle size estimation from pressure drop of pneumatic conveying pipe line. According to the previous report 1), pressure drop of pneumatic conveying pipe line can be theoretically calculated using empirical values of λs and νt e. friction coefficient of solid flow through a pipe and mean sedimentation rate of solid particles respectively. In this paper, λs and νt are obtained from the relations between solid-gas mixture ratio and pressure drop of an accelerating and a constant-velocity sections. Then, the mean particle size equivalent to a sphere is calculated from νt, showing good coincidence with experimental results. This is an indirect method of particle sfze measurement through the pressure drop and is believed to make a contribution to automatic measurement in industrial process.
  • 都築 繁彦, 岩谷 六之介, 河井 陽一
    1964 年 3 巻 11 号 p. 867-874
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
    Various speedometer's transducers for rolling stock have been developed up to this time. However, in their designs, the fault detection of transducer, transmitter and receiver has rarely been considered. A shifting field type transducer which produces AC 60 c/s output power a base signal in the secondary winding regardless of stopping or running state, is most useful for detecting the faults during operation. Since this transducer can be made so compact due to the shifting field principle, it can be set in the gear box whose gear is directly connected to the wheel shaft and is driven by the main motor. For measuring the speed, the transducer counts the number of gear teeth and converts it into frequency. This frequency is a input signal the speed indicating system. The shifting field type speedomete's transducer is adopted by the ATC system of New Tokaido Line.
  • 土井 康弘, 清水 嘉重郎, 坪井 定一, 河野 嗣男
    1964 年 3 巻 11 号 p. 875-883
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
    Introduced in this paper is a new device which can calibrate in an hour's run a standard scale to 1 000 mm in terms of the number of interference fringes. A standard scale on a carriage is. translated longitudinally with a uniform speed of 5 mm/min. Fringes produced by a Michelson interferometer are changed into a train of electric pulses that measure the translation with the of a quarter of a wavelength used (5461 A) and these pulses are successively accumulated in a counter. At every time wher the graduation lines pass across the microscope axis, an impulse is produced a fixed photoelectric microscope. When the impulse comes from the microscope, the content of counter is immediately taken out and printed automatically. Six of photoelectric microscopes at maximum can be used in tandem to extend the limited coherence length and data concerning each microscope can be connected without any appreciable errors. Thus, a single run over 300 mm makes, possible to calibrate all graduations with a total accuracy of ±0.1μ. This paper describes the machine part, interferometer, photoelectric microscopes and data handling equipment as well as statistical treatment of the resultant data obtained by this device.
  • 桜井 好正
    1964 年 3 巻 11 号 p. 884-889
    発行日: 1964/11/10
    公開日: 2010/10/21
    ジャーナル フリー
    This paper gives a method to rule the standard scales by means of wavelength of light regulated by interferometric method. A corner-cube reflector of interferometer and the scale blank be ruled are mounted tandem on a carriage moved along well machined way on the base by a driving mechanism. The interference fringes passing through the visual field of the interferometer during the movement of the carriage are counted in an electronic counter which generates electric signals to control the motion of cutting tool and carriage. The ruling machine has also as a standard of wavelength control an interferometer of Fizeau type whose interference fringes are detected by photo-electric method, and all of the mechanical and optical parts are placed in a closed vessel. The air pressure in the vessel is controlled by the signals from Fizeau interferometer to obtain an integral number of fringes for unit interval of scale lines and yet to eliminate the errors caused by variation of refractive index of air and thermal expansion of the scale blank.
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