Kabushiki Kaisha Kobe Seiko Sho

Shigeki Tojyo

Takao Fujikawa

Hiroyuki Takamatsu

Kozo Nishimura

Hiroyuki Tachibana

Masato Moritoki

Shigeo Kofune

Takeshi Kanda

Yoshiro Nishimoto

Takuya Kusaka

Yoshio Kawate

Yasuhide Nakai

Takefumi Horiuchi

Akimitsu Nakaue

Yoshihiko Onishi

Takayoshi Inoue

Yasuji Yoneda

Hiroshi Kajikawa

Masayoshi Iwaskai

Tatsuo Uesaka

Shinichi Imaoka

An apparatus for detecting position/variance of input light is disclosed which includes a photoelectric conversion device receiving input light constituted of a first resistive layer formed of a first photoelectric conversion material and a second resistive layer formed of a second photoelectric conversion material connected with the first resistive layer through a depletion layer or directly, wherein the first resistive layer is provided with uniform resistivity throughout its surface so that a linear output proportional to the average of the distances between one end of the photoelectric conversion device and positions of the input light is detected and the second resistive layer is provided with resistivity dependent upon the distance from its one end so that a quandratic ouput proportional to the average of the squares of the distances between one end of the photoelectric conversion device and positions of the input light is detected.

Method and apparatus for detecting position/variance of input light

A method of measuring the temperature in a high pressure furnace of a hot isostatic pressing apparatus, wherein a closed-end pipe having its inside communicated with the inside of the high pressure furnace and enabling a pressure medium to pass therethrough is disposed in the furnace, an incident top end of an optical fiber, a bundle of optical fibers or like other equivalent optical rod-like memeber is disposed to the open end of the closed-end pipe so as to be capable of receiving thermally radiated light from the inside of the closed-ended pipe and an exit rear end thereof is led out through a cover and to the outside of said high pressure vessel and a measuring system is connected to said exit rear end to detect heat radiation power from the top end of the closed-end pipe to thereby measure the temperature inside of the furnace.

Method and apparatus for measuring temperature in the high pressure

Growing community of inventors

Osaka, Japan

Shigeki Tojyo