A performance evaluation method of wolter-i type X-ray optical mirror

A technology of optical reflection and evaluation method, applied in the field of space optics, can solve the problems of unobtainable lens optical performance, optimization of grazing incidence reflective lens, low efficiency, etc., and achieve the effect of moderate data volume, improved efficiency, and small calculation amount

A technology of optical reflection and evaluation method, applied in the field of space optics, can solve the problems of unobtainable lens optical performance, optimization of grazing incidence reflective lens, low efficiency, etc., and achieve the effect of moderate data volume, improved efficiency, and small calculation amount

CN110702380BActive Publication Date: 2021-06-11BEIJING INST OF CONTROL ENG
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  • A performance evaluation method of wolter-i type X-ray optical mirror
  • A performance evaluation method of wolter-i type X-ray optical mirror
  • A performance evaluation method of wolter-i type X-ray optical mirror

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Embodiment Construction

[0033] The present invention will be further elaborated below in conjunction with embodiment.

[0034] For the Wolter-I type X-ray optical mirror performance evaluation method mainly includes the following steps:

[0035] Step 1. First select the optical reflector to be evaluated, and select the Wolter-I type X-ray optical reflector; the working band of the optical reflector is 0.2-10keV; the composition of the optical reflector includes a parabolic primary mirror and a hyperbolic secondary mirror; The mirror and the hyperboloid secondary mirror are both columnar structures; the side wall of the parabolic primary mirror is in the shape of a paraboloid; the side wall of the hyperbolic secondary mirror is in the shape of a hyperboloid; the parabolic primary mirror and the hyperbolic secondary mirror are coaxially connected, such as figure 1 .

[0036] Step 2. In order to facilitate the accurate detection of the surface error of the lens, the surface error of the optical mirror ...

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Abstract

The invention relates to a Wolter‑I type X-ray optical reflective lens performance evaluation method, which belongs to the field of space optics technology; Step 1, select the optical reflective lens; Step 2, divide the slope error measurement grid and roundness on the outer wall of the optical reflective lens Error measurement grid; step 3, measure the slope error h k,i , roundness error and actual radius r j ; Step 4, calculate the conversion slope error data h' k,i ; And reconstruct the fitting mirror surface according to the conversion slope error data; Step 5, set up an incident ray from the parabolic primary mirror into the optical reflector; Step 6, determine the normal vector of the first reflection point a, a point and the first reflection Step 7, determine the second reflection point b, the normal vector and the exit direction after the second reflection; Step 8, judge the performance of the optical mirror according to the distribution range of all focus points; the present invention will accuracy High, small amount of calculation, high efficiency.

Description

technical field [0001] The invention belongs to the technical field of space optics and relates to a Wolter-I type X-ray optical reflector performance evaluation method. Background technique [0002] X-ray pulsar navigation is suitable for fully autonomous navigation of spacecraft in near-Earth space, deep space exploration, and interstellar flight. It can provide comprehensive navigation information such as position, velocity, attitude, and time for most space mission spacecraft, and realize the navigation of spacecraft. Completely autonomous navigation has the advantages of strong reliability, good stability, high accuracy, and wide applicability. It is a new type of autonomous navigation technology with great development potential, and it has extremely important engineering practical value and strategic research significance. [0003] The core of the X-ray pulsar navigation sensor is the X-ray optical lens. As an X-ray optical lens with high angular resolution and strong...

Claims

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Application Information

Patent Timeline
11 Jun 2021
Publication
CN110702380B
IPC
G01M11/02; G01B11/24
CPC
G01B11/2408; G01M11/025
Inventors
左富昌; 梅志武