巻号一覧
7 巻, 3 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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尾中 竜猛1959 年 7 巻 3 号 p. 1-4
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (560K) -
益子 洋一郎1959 年 7 巻 3 号 p. 5-9
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーWith the purpose of reducing the reflectance of optical system in Raman spectrograph, surfaces of lens and prisms, 14 in all, are coated with MgF2 anti-reflection film. The intensity of the Raman effect observed by the coated system increased about three times as much as that by uncoated one.
By calculating the reflectance of coated and uncoated surfaces, the total transmittance of the optical system is estimated by (i) using a simple Fresnel's formula and (ii) considering multiple reflections in lens system, and the effect of the coating thus calculated is compared with that obtained by observation. If most part of the light by multiple reflections is considered responsible to cause stray light and again if the effect of background produced by the stray light is taken into account and introduced into calculation, the obferved result is reasonably explained.抄録全体を表示PDF形式でダウンロード (609K) -
益子 洋一郎1959 年 7 巻 3 号 p. 9-16
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーFor obtaining a monochromatic spectral line of mercury arc as the source of excitation for Raman effect, a suitable filter is usually used. Various filters for the purpose have been reported, but as to their spectral characteristics no satisfactory description is given .
Absorption spectra of more than ten of those liquid solution filters have been examined spectro-photometrically from 3500Å to 5000Å. Most of these filters are found inadequate except sodium nitrite aqueous solution and iodine-carbontetrachloride solution; they are very efficient if their concentrations are kept properly adjusted.
Interference filter, which has lately been much improved, is tried. Examination of spectral charac- teristics shows its superiority over the above liquid solution filters, yet its application to practice need further investigation.抄録全体を表示PDF形式でダウンロード (2006K) -
第1報ガラス面の変角光度計による反射率測定ならびに耐毀傷性長谷川 泰, 川久保 正一郎1959 年 7 巻 3 号 p. 16-25
発行日: 1959年
公開日: 2011/07/01
ジャーナル フリーUm die optischen Eigenschaften des Glasoberfläche zu studieren, wurde ein Goniophotometer neu ausgerüstet, das für jede fünf Minute 0±145° Winkelmessungsbereich hat.
In der vorliegenden Untersuchung wurde die Reflexionsveränderung der mit Siliziumkarbid abgeriebenen Glasoberfläche in der Nähe des regulären Reflexionswinkels (φ±1°) gegen verschiedenen Einfallswinkeln gemessen und mit der Hilfe der statistischer Verfahren, d. h. Standardabweichung und Spitze, wurde die Veränderung der goniometrischen Verteilungskurven zahlmäßig gezeigt. Die optisch polierte Fläche wurde nach Sandrieselungsmethode abgerieben. Nach der Messung mit dem Mikrointerferometer war die Rauheit der einzelnen abgeriebenen Fläche in dem Bereich von einigen Zehm mμ.
Es zeigt sich, daß Standardabweichung und Spitze der Reflexionsvermögenskurven sich bei dem Abreiben des polierten Fläche vermehren und die reziproken Zahlen des Spitzenvermehrungsmoduls der Kennzahlen der Abriebfestigkeit von der Glasoberfläche unter den bestimmten Bedingungen eignen.抄録全体を表示PDF形式でダウンロード (1691K) -
熊谷 十郎, 堀沢 寛1959 年 7 巻 3 号 p. 25-31
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーIt would be very convenient if a milliammeter can be used instead of an electrometer or a galvanometer for spectrometric microphotometer. As such combination is not yet known to exist, the authors modified the light accepting compartment of Shimadzu microphotometer to serve for galvanometer-lamp-scale system by attaching a photomultiplier and a milliammeter. Usually in determining the ratio of light intensities with a microphotorneter, the ratio of the galvanometer deflection by the base metal to that by the element under examination is to be calculated, say, on a slide rule which is not only tedious and time consuming but may lead into error.
A method has been devised to simplify the procedure by making the light intensity adjustable with iris stop placed between the photometer and the dry plate. Thus if, by adjusting the light intensity, the galvanometer deflection by the element under examination is brought to a given fixed position on the scale, the deflection by the base metal gives at once the required intensity ratio.
Special feature of this outfit is:
(a) No calculation is needed for obtaining the intensity ratio.
(b) Easy manipulation because of iris adjustment of light intensity.
(c) Time saving.抄録全体を表示PDF形式でダウンロード (1153K) -
高沢 俊彦, 花崎 文一1959 年 7 巻 3 号 p. 31-35
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーDegree of graphitization directly influences the quality of carbon products. The surest way of determining the degree of graphitization is known to be to measure the specific gravity which is however time consuming. Various other methods for the use in practice have been devised in the past.
The authors report the possibility of the measurement utilizing the relation of the specific gravity to the ultraviolet reflecting power of carbon affected by graphitization.
A simple apparatus has been contrived for this purpose using a Hg lamp and a photo-tube responding only to 2537Å rays without filter.抄録全体を表示PDF形式でダウンロード (578K) -
石田 良平1959 年 7 巻 3 号 p. 36
発行日: 1959年
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (117K)
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