JPS61169798U

JPS61169798U -

Info

Publication number: JPS61169798U
Application number: JP5225885U
Authority: JP
Priority date: 1985-04-09
Filing date: 1985-04-09
Publication date: 1986-10-21

Description

[Brief explanation of the drawing]

第１図はこの考案による地球センサの一実施例
の全体構成図、第２図はこの考案による冗長系統
切換え前中後の人工衛星姿勢角の出力波形図、第
３図はこの考案のマルチプレクサ及び遅延回路関
係の詳細図、第４図は従来の地球センサの全体構
成図、第５図は従来の冗長系統切換前中後の人工
衛星の出力波形図である。図において、１は光学系、２は赤外線検知器、
３はヒータ１、４はヒータ２、５はスイツチ１、
６はスイツチ２、７は増幅器１、８は信号処理部
１、９は増幅器２、１０は信号処理部２、１１は
遅延回路、１２はマルチプレクサ、１３はＦＥＴ
スイツチ１、１４はＦＥＴスイツチ２、１５はＦ
ＥＴスイツチ３、１６はＦＥＴスイツチ４、１７
は積分回路１、１８は積分回路２、１９は従来の
マルチプレクサである。なお、図中同一符号は同
一または相当部分を示す。 Figure 1 is an overall configuration diagram of an embodiment of the earth sensor according to this invention, Figure 2 is an output waveform diagram of the satellite attitude angle before and after redundant system switching according to this invention, and Figure 3 is a diagram of the multiplexer and FIG. 4 is a detailed diagram of the delay circuit relationship, FIG. 4 is an overall configuration diagram of a conventional earth sensor, and FIG. 5 is an output waveform diagram of an artificial satellite before, during and after conventional redundant system switching. In the figure, 1 is an optical system, 2 is an infrared detector,
3 is heater 1, 4 is heater 2, 5 is switch 1,
6 is a switch 2, 7 is an amplifier 1, 8 is a signal processing section 1, 9 is an amplifier 2, 10 is a signal processing section 2, 11 is a delay circuit, 12 is a multiplexer, 13 is an FET
Switches 1 and 14 are FET switches 2 and 15 are FET switches
ET switches 3 and 16 are FET switches 4 and 17
1 is an integrating circuit 1, 18 is an integrating circuit 2, and 19 is a conventional multiplexer. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

An optical system that focuses the earth's infrared radiation energy,
An infrared detector that detects the infrared radiant energy of this focused earth image, a heat control material that controls the temperature inside the earth sensor, a switch that switches the output detected by the infrared detector to a redundant signal processing unit, An amplifier that amplifies the weak output from the infrared detector, a signal processing section that processes the attitude angle of the satellite based on this amplified signal, an integration circuit that integrates the output of the signal processing section, commands from the ground or onboard An earth sensor equipped with a delay circuit that delays command signals, and a multiplexer that switches the output of the signal processing section and the output of the integration circuit.