Detection sensor for spatial atmospheric surface density and manufacturing method thereof

An areal density and sensor technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of inability to directly obtain the atmospheric areal density and real-time in-situ detection of atmospheric density, and achieve distributed measurement, light weight and volume. small effect

Inactive Publication Date: 2018-07-27
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

Real-time in-situ detection of atmospheric density cannot be realized in existing space atmospheric density detection devices; in addition, the monitoring method of atmospheric density at the present stage monitors the bulk densi

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  • Detection sensor for spatial atmospheric surface density and manufacturing method thereof
  • Detection sensor for spatial atmospheric surface density and manufacturing method thereof
  • Detection sensor for spatial atmospheric surface density and manufacturing method thereof

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Embodiment Construction

[0032] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] This embodiment provides a sensor for detecting the surface density of the space atmosphere. The sensor is a resonant sensor, and the detection principle diagram is as follows figure 1 shown. The measuring crystal oscillator and the reference crystal oscillator are coated with a molecular adsorption film, and the reference crystal oscillator is provided with an airtight cover to prevent its surface from adsorbing the space atmosphere; since the molecular adsorption film of the measuring crystal oscillator absorbs the space atmospheric gas near the surface of the sensor, the measurement Compared with the frequency of the reference crystal oscillator, the crystal oscillator frequency forms a frequency drift, and the atmospheric surface density of the space atmospheric gas near the sensor surface can be calculated by using the frequency drift, so as to...

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Abstract

The invention provides a detection sensor for spatial atmospheric surface density and a manufacturing method thereof. The detection sensor can realize direct detection of the atmospheric surface density of a spatial fixed point; the resonant sensor is employed for detection of spatial atmospheric surface density, realizes direct measurement of atmospheric surface density via atmospheric substancesadhering onto the surface of a probe of the sensor and better serves research on the resistance of atmospheric surface density to spacecrafts; and the resonant sensor is low in power consumption, canmeet the networking requirements of micro-nano satellite constellations, and realizes spatial large-scale distributed measurement of atmospheric surface density and real-time measurement of orbit atmosphere simultaneously in virtue of the networking micro-nano satellite constellations. According to the invention, the resonant sensor is small in size, light in weight and capable of monitoring atmospheric surface density at different positions and different angles in virtue of a sensor array mode. A data processing unit of the invention can be separated from a gas acquisition module, so distributed measurement can be realized, and the atmospheric surface density of the spacecraft during orbital flight can be accurately determined.

Description

technical field [0001] The invention relates to the technical field of space atmospheric density detection, in particular to a space atmospheric surface density detection sensor and a manufacturing method thereof. Background technique [0002] At present, there are mainly two methods for space atmospheric density detection, one is remote sensing and the other is in situ detection. Among them, the remote sensing method obtains the average atmospheric density in the airspace, and the in-situ detection is the atmospheric density value of a specific location. In-situ detection methods mainly include mass spectrometers, vacuum gauges, etc. The resulting volume density of the space atmosphere. At present, optical remote sensing, mass spectrometer, orbit data inversion or GPS signal delay methods are mainly used to measure the space atmospheric density at home and abroad. Real-time in-situ detection of atmospheric density cannot be realized in existing space atmospheric density ...

Claims

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Application Information

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IPC IPC(8): G01N9/00
CPCG01N9/002G01N2009/004
Inventor 郭兴杨生胜矫义薛玉雄庄建宏石红
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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