Title:
【発明の名称】高速電圧測定装置
Document Type and Number:
Japanese Patent JP2742474
Kind Code:
B2
Abstract:
PURPOSE:To measure voltage at good linearity and S/N ratio, even if the voltage is small, without converting, etc., output, of a light detector based on input/ output characteristics. CONSTITUTION:A high-speed voltage measuring device 10 is constructed by arranging a light source 12, a polarizer 14, a light modulator 16 onto which an electric signal to be measured is applied, a polarization interferometer 18, a streak camera 20, and a processing device 22, in that order. By utilizing the fact that interference fringes are formed on the input surface of the streak camera 20 by means of the polarization interferometer 18 and the fringes move according to the electric signal to be measured applied to the light modulator 16, the amount of movement is detected by the streak camera 20 for voltage measurement.
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Inventors:
Hironori Takahashi
Urakami Tsuneyuki
Aoshima Shinichiro
Urakami Tsuneyuki
Aoshima Shinichiro
Application Number:
JP8624591A
Publication Date:
April 22, 1998
Filing Date:
March 26, 1991
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
G01R15/24; G01R19/00; G01R31/302; G01R23/17; (IPC1-7): G01R19/00; G01R15/24; G01R23/17; G01R31/302
Domestic Patent References:
| JP3267766A | ||||
| JP3158704A | ||||
| JP2156166A | ||||
| JP6263802A |
Attorney, Agent or Firm:
Keisuke Matsuyama (2 outside)