Space-based large-diameter multi-constrained extrasolar terrestrial planet detector structure

Abstract

The invention provides a space-based large-diameter multi-constrained extrasolar terrestrial planet detector structure. The structure comprises a platform service module, a platform propelling module, a payload, a star sensor and a platform bottom plate; the back light path part of the payload is embedded into the platform service module, the star sensor is installed on a high-rigidity back plate of the payload, therefore, the attitude measuring error is decreased, and the attitude control precision of a whole detector is improved; intra-detector subsystem single units of the detector are arranged on the obverse side of the platform bottom plate, and thrusters and air cylinders are arranged on the reverse side of the platform bottom plate. According to the space-based large-diameter multi-constrained extrasolar terrestrial planet detector structure, by means of integrated design of a load platform, the mass center of the whole detector can be lowered, and the enveloping limiting requirement of a launch vehicle fairing can be met; meanwhile, attitude sensitive devices such as the star sensor are arranged on the high-rigidity back plate of the payload, therefore, the attitude measuring error can be decreased, and the attitude control precision of the whole detector can be improved. The structure can be effectively applied to layout design of a similar detector structure with a large-diameter multi-constrained space camera.

Description

technical field [0001] The invention relates to the configuration of a space-based large-aperture multi-constraint exoplanet probe, which provides a configuration layout scheme for the overall design of the probe, and the configuration layout scheme can be applied to similar large-aperture multiple Detector design for constrained space cameras. Background technique [0002] As a typical detection object, extrasolar terrestrial planets carry the significance of discovering habitable planets and extrasolar life, and are the hotspot and focus of current research. Developing fine spectral measurement technology, launching large-scale space cameras, studying exoplanet atmospheres, and finely characterizing the physical and chemical properties of exoplanets are important directions for future space exploration. [0003] However, due to the large aperture and many constraints of large-scale space cameras, it brings difficulties to the overall configuration design of the detector. ...

AI Technical Summary

Problems solved by technology

[0003] However, due to the large aperture and many constraints of the large space camera, it brings difficulties to the overall configuration design of the detector

According to analysis, in order to realize the detection of exoplanets, the camera needs to have a diameter of 3m, a height of 3.3m, and a rear optical path height of 1.7m. The overall envelope exceeds the limit of the launch vehicle fairing, and the center of mass of the entire vehicle is too high

Images