Title:
SOLAR SENSOR
Document Type and Number:
Japanese Patent JPH04355317
Kind Code:
A
Abstract:
PURPOSE:To enable either one type out of three types of operations to be calculated by addition/subtraction operation logic and a two-dimensional attitude angle to be detected highly accurately even if either of detection elements fails and achieve a high reliability of a solar sensor. CONSTITUTION:In a solar sensor for detecting a direction of sun which is mounted on a satellit two-dimensionally, six detection elements 5-10 which are placed radially from a center of a hexagonal shape for detecting an incidence solar light 1, a mask 4 with slit having a slit with a same shape as the hexagonal shape which is projected to the detection elements 5-10 after the incidence solar light 1 is transmitted, and addition/subtraction logic 11 for performing addition and subtraction of detection voltage of the detection elements 5-10 in a specified combination are provided.
Inventors:
AOYAMA JUNICHI
Application Number:
JP13012891A
Publication Date:
December 09, 1992
Filing Date:
June 03, 1991
Export Citation:
Assignee:
NEC CORP
International Classes:
G01C1/00; G01C21/24; G05D1/08; B64G1/36; (IPC1-7): B64G1/36; G01C1/00; G01C21/24; G05D1/08
Attorney, Agent or Firm:
Shin Uchihara