Method for measuring sampling amount of extraterrestrial celestial body sample by using sunlight source
A technology of light source and sunshine, applied in the field of deep space exploration, can solve problems such as increasing uncertainty, increasing load weight, reducing mission reliability, etc., to achieve the effect of reducing the possibility of failure and high reliability
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Embodiment 1
[0031] A method for measuring the sampling volume of a sample by using a sunlight light source when a detector is in an extraterrestrial celestial body. The method uses image judgment to calculate the sampling volume of a sample container based on the landing position of the extraterrestrial celestial body, the landing angle, and the angle of the sunlight light source. Just like the sundial principle, it simply and directly displays the target. The equipment required for this technology does not require any additional sensors except for the cameras that are already equipped with the general detector itself due to mission requirements. Because the more electronic components, the greater the possibility of failure. This method eliminates the need for sensors, which means that no additional weight is added to the payload. The roughness Ra value of the inner wall of the sample container is not less than 0.8, and the sample container is integrally formed through a machining proces...
Embodiment 2
[0048] Since the sample container is mounted on a fixed panel, the relationship between the camera position and the physical size of the container is known. The distance between the camera and the bottom of the container is represented by H. The camera uses a fixed-focus lens, so when the camera can clearly capture the scale projected by the sunlight light source and the top surface of the sample in the container, you can know the f value, and f is the focal length, which is the distance between the camera and the top surface of the sample in the container. When the sample container inclination angle θ≠0°, that is, when the sample container is tilted, that is, when the reference horizontal plane of the incident angle of the light source is not parallel to the bottom surface of the sample container, after knowing the f value, you can calculate V by the following derivation 2 value to get the sample size. Wherein, the sampling volume refers to the sampling volume.
[0049] ...
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