Device for measuring optical characteristics of near-far field of space target

Abstract

The invention discloses a device for measuring optical characteristics of a near-far field of a space target. The device comprises a spherical container and a light-passing optical path cylinder, wherein the spherical container and the light-passing optical path cylinder are connected through a connecting cylinder, and a gate valve is arranged on the connecting cylinder; the spherical container isprovided with an equatorial measuring surface and a second measuring surface, the second measuring surface and the central axis of the connecting cylinder are positioned in one plane, and the centralaxis of the light-passing optical path cylinder is located at a position 0.5 m below the second measuring surface; an optical measuring device body irradiates a measured target from the far end of the light-passing optical path cylinder through the light-passing optical path cylinder, the connecting cylinder and the spherical container, and the measured target is positioned on the second measuring surface; the view field of the measuring device body, the size of the measured target, the length of the connecting cylinder and the size of the gate valve are constrained by one another. Accordingto the device, by designing the combination of the spherical main container and the cylindrical light-passing optical path cylinder, measurement of a far optical field becomes reality while the spherical container is not enlarged. Meanwhile, by reasonably designing the measuring position, the optical path, the light-passing aperture and length of each apparatus and the like, full coverage of the measured view field is achieved.

Description

technical field [0001] The invention relates to measuring ring mold equipment in the field of space target characteristic measurement, in particular to a device for space target far-field optical characteristic measurement. Background technique [0002] In the space environment simulation test, the target needs to be observed from multiple angles, and at the same time, the distance between the measuring equipment and the measuring target is required to be consistent, otherwise it will cause measurement errors, so the design of the spherical container is the best way to ensure that the distance between each measuring device and the test target is consistent. At the same time, in order to reduce the measurement error introduced by environmental simulation, the spherical container needs to be designed with a large size. [0003] Sometimes, the analysis of far-field optical characteristics of space targets requires far-field measurement, so on the one hand, the design of the sph...

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Problems solved by technology

[0003] Sometimes, the analysis of far-field optical characteristics of space targets requires far-field measurement, so on the one hand, the design of the spherical container is required to be relatively large. Far Field Measurement Requirements

Therefore, in order to meet the far-field conditions of optical analog measurement, that is, the optical characteristic measurement equipment needs to be farther away from the target (optical path), it is not advisable to directly increase the size of the spherical container, which will cause the entire vacuum container to become larger. It is difficult to realize the process, and the cost increases sharply

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