Hitachi, Ltd.

Japan Ae Power Systems Corporation

Japan Ae Power System Corporation

Fuji Electric Co., Ltd.

Shigekatsu Sato

Takayuki Suzuki

Hiroyuki Fujita

Tomoyuki Hikosaka

Satoru Gohzaki

Yoshitaka Takezawa

Yukio Okamoto

Isao Hashimoto

Shiro Eguchi

Yuzo Ito

Hidenobu Koide

Nobuyasu Harada

Nobuyuki Hashimoto

Satoru Gozaki

At a conveying pathfor continuously carrying a sheet material, an electron beam irradiation meansis arranged in opposition to at least one surface of the sheet material, and at least one surface of the sheet materialis sterilized using such an electron beam. The conveying pathtakes shape of a hollow box surrounding the sheet material, and has an electron beam irradiation areaat a part of this area, while keeping a reduced-pressure state ranging from 10 to 80,000 Pa using a pressure reduction means. Further, the electron beam irradiation areawhere the electron beam irradiation meansis arranged at least one sub areaat each of adjacent hollow box-shaped conveying pathat carry-in side and carry-out side of the sheet material, providing the pressure reduction meansfor depressurizing the sub area

Electron beam irradiation apparatus for sterilizing sheet material

The electron beam irradiating apparatus with the monitoring device has an electron beam irradiating means for irradiating materials in an irradiation chamber. The monitoring device has a photographing means for imaging a lights emitted by irradiating an electron beam to the materials; a storage means that stores state of electron beam irradiation in advance; and a calculating means that processes an image, which is captured by the photographing means, to decide a state of electron beam irradiation. The storage means has stored at least three state of electron beam irradiation and also has stored image luminance associated with those states of electron beam irradiation. The calculating means loads the image, which is captured by the photographing means, to compare the loaded image with the image luminance stored in the storage means, thereby deciding a state of electron beam irradiation.

Electron beam irradiating apparatus with monitoring device

The apparatus has a rotating bodyin an irradiation processing chamber. Outside the rotating body, plural retaining mechanismsare installed at regular interval to retain open-mouthed containers. Above the conveying path, an electron beam generating meansis arranged. The rotating bodyhas a rotary shaftthat penetrates into the electron beam generating means. On the rotary shaft, a grid plateof an electron beam sourceof the electron beam generating meansis rotatively installed. On the grid plate, plural emission holesare provided at the same interval as that of the retaining mechanismson the rotating body. In an predetermined irradiation area, the emission holesand a irradiation windowson the irradiation processing chamberand the retaining mechanismfor holding the container are aligned approximately on the same axes.

Electron beam irradiation apparatus for open-mouthed containers

There are provided an electron beam application method and an electron beam application device capable of uniformly applying electron beams to an object even if the electron beams have a low energy. For this, electron beams (EB) are applied to a beverage container () (object) within a magnetic barrier (MF) formed by combining a plurality of magnetic fields generated in an electron beam application region.

Electron beam irradiation method, electron beam irradiation apparatus, and electron beam irradiation apparatus for open-mouthed container

In order to diagnose non-distructively the deterioration degree of such as insulation oil and insulation paper during operation of an oil filled electrical machine and apparatus without stopping the operation thereof, a deterioration degree disgnosis method for the oil filled electrical machine and apparatus makes use of optical fibers (6, 7) and oil immersed probe (5) and diagnoses the deterioration degree of an insulation paper non-distructively based on reflection absorbance difference between those for any two wavelengths of the insulation paper.

Deterioration diagnosis method and device of electrical machine and

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Hitachi, Japan

Shigekatsu Sato