Space debris detecting device based on thin film type solar cell array

A technology of space debris and solar cells, applied in measuring devices, electric/magnetic exploration, radio wave measurement systems, etc., can solve problems such as the inability to provide photocurrent, and achieve the effects of simple structure, easy detection, and low manufacturing cost

CN109725359AActive Publication Date: 2019-05-07BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-05-07

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Abstract

The invention discloses a space debris detecting device based on a thin film type solar cell array, comprising a detecting case having a top opening, a first layer of the thin film solar cell array, asecond layer of the thin film solar cell array, and a piezoelectric effect detecting layer. A first layer array and a second layer array are respectively formed by plating a single solar cell unit arranged in a grid pattern on a polymer film. The solar cell units of the two-layer array are sensitive to the sunlight of different bands respectively. The sunlight sensitive to the second layer (ie, bottom layer) of the solar cell array can penetrate the first layer of the solar cell arrays. According to the space debris detecting device based on the thin film type solar cell array, the structureis simple, the manufacturing cost is low, and the detection of the space debris is easy to be realized, and the size, speed, direction and quality data of the space debris can be obtained.
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Description

technical field

[0001] The invention belongs to the technical field of space debris environment detection, and in particular relates to a detection device for space debris of a Bo model solar cell array. Background technique

[0002] In the space environment, "space debris" (also known as space junk) is the waste left in space by human spaceflight activities, and is the main source of pollution of the space environment. Since the launch of the first artificial earth satellite in 1957, the total number of space debris has exceeded 40 million, and the total mass has reached several million kilograms. The number of space debris that can be observed by ground telescopes and radars has increased by about 200 per year on average, greater than 10 There are now more than 9,200 centimeters of space debris. Space debris is mainly distributed in the low-orbit region below 2000 kilometers, and they pose a serious threat to spacecraft in near-Earth space.

[0003] The size range of spa...

Examples

Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings, but this is only exemplary and not intended to limit the protection scope of the present invention. Below in conjunction with accompanying drawing, patent of the present invention is described further.

[0036] figure 1It shows a schematic structural diagram of the first layer of thin film solar cell array in the space debris detection device based on thin film solar cell array of the present invention. Among them, the first thin-film solar cell array is an array formed by setting n×n single solar cell units on a 1m×1m polyimide film, and the size of a single solar cell unit is 1cm×1cm, due to GaInP2, GaAs, The Ge film layer absorbs light in the bands of 300nm-660nm, 660nm-900nm, and 900nm-1800nm ​​respectively. Therefore, we can choose GaInP 2 The battery and the Ge battery are used as the batteries of the upper and lower battery arrays respectively, and the...