A solar sensor based on a photoelectric converter and its measurement method

Abstract

The invention discloses a sun sensor based on a photoelectric converter and measurement method thereof, and belongs to the technical field of aerospace. The sensor includes a satellite body, two support structures respectively arranged on a pair of opposite angles of the satellite body; each support structure has three vertical surfaces; each surface of each support is provided with a photoelectric converter; a signal processing circuit is installed in the satellite body; the signal processing circuit consists of a signal conditioning circuit, a temperature detector and a processor; each photoelectric converter is respectively connected with the corresponding signal conditioning circuit; the signal conditioning circuit is connected with the processor and used for inputting voltage signal to the processor; and the temperature detector is connected with the processor, and used for inputting the temperature signal of the satellite main body into the processor. In order to achieve the purpose, the invention provides the sun sensor based on the photoelectric converter and the measuring method thereof, solves the problems in the prior art, and has the advantages of wide field of view, small volume and light weight.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and relates to a sun sensor based on a photoelectric converter and a measurement method thereof, especially for micro-nano satellites to realize the measurement of the sun vector angle. Background technique [0002] The real-time determination of attitude is the premise and basis for high-precision control of satellites, and the observation of the satellite’s in-orbit status needs to obtain the relative position information of reference celestial bodies. Sunlight has the characteristics of high brightness, high signal-to-noise ratio, and high parallelism, making it It is easy to detect and the direction of the sun vector angle is almost irrelevant to the orbit of the satellite, so it is of great significance to install the sun vector angle sensor on the satellite to detect its attitude. [0003] At present, the more mature sun vector angle sensors are mainly divided into analog sun vector angl...

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Problems solved by technology

[0006] In summary, the existing analog sun vector angle sensors and digital sun vector angle sensors are usually large in size and heavy in weight, and cannot achieve a full field of view, which takes up the load of the satellite; in this field, Under the premise of accurately measuring the sun vector angle, the simpler the structure, the lighter the mass, the smaller the volume, the better

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