CN108801169A - One-dimensional PSD sensor module suitable for the in-orbit deformation measurement of satellite structure - Google Patents
One-dimensional PSD sensor module suitable for the in-orbit deformation measurement of satellite structure Download PDFInfo
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- CN108801169A CN108801169A CN201810664429.9A CN201810664429A CN108801169A CN 108801169 A CN108801169 A CN 108801169A CN 201810664429 A CN201810664429 A CN 201810664429A CN 108801169 A CN108801169 A CN 108801169A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The present invention provides a kind of one-dimensional PSD sensor modules suitable for the in-orbit deformation measurement of satellite structure; including shell and the PSD signal processing board being arranged in the shell; the PSD signal processing board is equipped with PSD signal processing circuit; the PSD signal processing circuit includes one-dimensional PSD chip, current sampling circuit, voltage amplifier circuit, output protection circuit, precision voltage source circuit, heater circuit and temperature measurement circuit, and the one-dimensional PSD chip is for incuding incident laser spot positions；The current sampling circuit, precision voltage source circuit are connected with the one-dimensional PSD chip；The voltage amplifier circuit is connected with the current sampling circuit and output protection circuit, and the heater circuit is connect with externally fed；The temperature measurement circuit is connect with external temperature acquisition single machine.The present invention can be used for realizing the non-contact measurement of the in-orbit deformation of satellite structure；Have own temperature and measures function, the autonomous thermal control function of low temperature environment.
Description
Technical field
The present invention relates to spacecraft fields, more particularly to a kind of suitable for the one-dimensional of the in-orbit deformation measurement of satellite structure
PSD sensor modules.
Background technology
Due to the complexity of satellite structure and its material, spatial heat environment alternately and repeatedly changes seriously, it is likely that can cause
The apparent thermal deformation of satellite structure, and malformation may on satellite fractional load be imaged and be directed toward precision cause it is serious
It influences.With the promotion of spacecraft performance, influence of the malformation to the performance indicator of satellite in orbit Main Load increasingly by
Pay attention to, the application demand of malformation measuring technique also show increasingly with it is important, be that structure becomes by the in-orbit monitoring of malformation
Shape inhibits and in-orbit amendment provides data and supports.Traditional malformation measurement is mostly based on the contact measuring apparatus such as optical fiber,
Volume, weight are generally large, and especially when for the application scenario of long range, big front, contact measuring apparatus is past to be occupied
More whole star volume, weight and thermal control resource, and be easy to have an impact to being measured, therefore develop a kind of lightweight, non-
The measuring device of contact more increases significant.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of lightweight, low temperature environment autonomous thermal controls
The contactless in-orbit deformation measuring device of satellite structure, the in-orbit deformation of satellite structure particularly suitable for long range, big front are surveyed
Amount.
In order to solve the above technical problems, the present invention is realized especially by following technical scheme：
Suitable for the one-dimensional PSD sensor module of the in-orbit deformation measurement of satellite structure, including shell and setting are described
PSD signal processing board in shell, the PSD signal processing board are equipped with PSD signal processing circuit, the PSD signal processing
Circuit includes one-dimensional PSD chip, current sampling circuit, voltage amplifier circuit, output protection circuit, precision voltage source circuit, heating
Circuit and temperature measurement circuit, the one-dimensional PSD chip is for incuding incident laser spot positions；The current sampling circuit, precision
Power circuit is connected with the one-dimensional PSD chip；The voltage amplifier circuit and the current sampling circuit and output protection electricity
Road is connected, and the heater circuit is connect with externally fed；The temperature measurement circuit is connect with external temperature acquisition single machine.
Preferably, the shell includes optical filter, front housing, rear cover and screw, and shell passes through the installation on screw and front housing
Hole is fixed on tested structure interface, and optical filter is mounted at the PSD light holes of front housing, after incident laser beam passes through optical filter
It gets on the one-dimensional PSD chip.
Preferably, the PSD signal processing board is single plate structure, and the one-dimensional PSD chip is mounted at the PSD signal
The front of plate is managed, the PSD signal processing board is directed at the PSD light holes on the front housing when installing.
Preferably, the PSD signal processing back is welded with electric connector, and is connected with outside by the electric connector
It connects, shell is stretched out in the trepanning which covers after passing through.
Compared with prior art, the invention has the advantages that：
One, the non-contact measurement that can be used for realizing satellite structure in-orbit deformation, particularly suitable for over long distances, big front
The in-orbit deformation measurement of satellite structure；
Two, have own temperature and measure function；
Three, have the autonomous thermal control function of low temperature environment, be applicable in satellite capsule or extravehicular environment；
Four, positive supply or negative supply power supply may be selected in heater circuit, avoids multiple one-dimensional PSD sensor modules while using
When, positive and negative output power unbalance；
Five, output voltage is equipped with limited amplitude protection function, avoids signal acquisition single machine on output high pressure damage star；
Six, shell is processed using carbon fibre material, and lightweight, thermal deformation is small, significantly reduces introducing error；
Seven, input path designs optical filter, can effectively filter out jamming light source；
Eight, single component is using can be achieved malformation displacement measurement function, and multiple components use simultaneously, by reasonable
Flatness deformation can be achieved in layout and plane is directed toward deformation measurement function.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature mesh of the invention
And advantage will become more apparent upon.
Fig. 1 is the body diagram of the present invention；
Fig. 2 is the principle schematic of PSD signal processing circuit in the present invention；
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As Figure 1-Figure 2, an embodiment of the present invention provides a kind of suitable for the one-dimensional of the in-orbit deformation measurement of satellite structure
PSD sensor modules, including shell and the PSD signal processing board that is arranged in the shell, shell bottom surface are equipped with a peace
Pedestal 6 is filled, the mounting seat 6 is equipped with mounting hole 7, and the PSD signal processing board is equipped with PSD signal processing circuit, institute
It includes one-dimensional PSD chip, current sampling circuit, voltage amplifier circuit, output protection circuit, precision to state PSD signal processing circuit
Power circuit, heater circuit and temperature measurement circuit, the one-dimensional PSD chip is for incuding incident laser spot positions；The electric current
Sample circuit, precision voltage source circuit are connected with the one-dimensional PSD chip；The voltage amplifier circuit and the current sampling circuit
It is connected with output protection circuit, the heater circuit is connect with externally fed；The temperature measurement circuit acquires single machine with external temperature
Connection；By the temperature measurement circuit in PSD signal processing circuit, may be implemented in space environment to one-dimensional PSD sensor module
Temperature measurement function；Under low temperature environment out of my cabin, low temperature ring can be realized by the heater circuit in PSD signal processing circuit
Autonomous thermal control under border, without occupying whole star thermal control resource.
The shell includes optical filter 3, front housing 1, rear cover 4 and screw 5；PSD signal processing back is welded with electrical connection
Device, and by electric connector and external connection, shell is stretched out in the trepanning that electric connector covers after passing through；Before optical filter 3 is mounted on
At the PSD light holes 2 of shell, one-dimensional PSD chip is mounted on the front of PSD signal processing board, and PSD signal processing board is aligned when installing
PSD light holes on front housing, incident laser beam are got to after passing through optical filter on one-dimensional PSD chip；Shell is by screw with before
Mounting hole on shell is fixed on tested structure interface；In use, laser is small mounted on satellite structure good rigidity, in-orbit deformation
Position.The shell is processed using carbon fibre material, realizes the lightweight of one-dimensional PSD sensor module, volume is only
20mm × 10mm × 30mm, weight are only 25g, while the in-orbit thermal deformation for reducing one-dimensional PSD sensor module itself, are avoided
Measuring system itself introduces larger measurement error.
This specific implementation one-dimensional PSD sensor module used aloned suitable for the in-orbit deformation measurement of satellite structure
Malformation displacement measurement function can be achieved, it is multiple to use simultaneously, flatness deformation and plane can be realized by rational deployment
It is directed toward deformation measurement function；Positive supply or negative supply power supply may be selected in heater circuit in PSD signal processing circuit, avoids multiple
One-dimensional PSD sensor module is simultaneously in use, cause the positive and negative output power unbalance of power supply single machine on star；At PSD signal
Output protection circuit in reason circuit has the function of limited amplitude protection, avoids signal acquisition single machine on output high pressure damage star.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (4)
1. the one-dimensional PSD sensor module suitable for the in-orbit deformation measurement of satellite structure, it is characterised in that：Including shell and set
The PSD signal processing board in the shell is set, the PSD signal processing board is equipped with PSD signal processing circuit, the PSD
Signal processing circuit includes one-dimensional PSD chip, current sampling circuit, voltage amplifier circuit, output protection circuit, precision voltage source electricity
Road, heater circuit and temperature measurement circuit, the one-dimensional PSD chip is for incuding incident laser spot positions；The current sample electricity
Road, precision voltage source circuit are connected with the one-dimensional PSD chip；The voltage amplifier circuit and the current sampling circuit and output
Circuit is protected to be connected, the heater circuit is connect with externally fed；The temperature measurement circuit is connect with external temperature acquisition single machine.
2. the one-dimensional PSD sensor module according to claim 1 suitable for the in-orbit deformation measurement of satellite structure, feature
Be, the shell includes optical filter, front housing, rear cover and screw, shell by the mounting hole on screw and front housing be fixed on by
On geodesic structure interface, optical filter is mounted at the PSD light holes of front housing, and incident laser beam gets to described one after passing through optical filter
It ties up on PSD chips.
3. the one-dimensional PSD sensor module according to claim 1 suitable for the in-orbit deformation measurement of satellite structure, feature
It is, the PSD signal processing board is single plate structure, and the one-dimensional PSD chip is being mounted on the PSD signal processing board just
Face, the PSD signal processing board are directed at the PSD light holes on the front housing when installing.
4. the one-dimensional PSD sensor module according to claim 1 suitable for the in-orbit deformation measurement of satellite structure, feature
It is, the PSD signal processing back is welded with electric connector, and passes through the electric connector and external connection, the electrical connection
Shell is stretched out in the trepanning that device covers after passing through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664429.9A CN108801169B (en) | 2018-06-25 | 2018-06-25 | One-dimensional PSD sensor assembly suitable for satellite structure in-orbit deformation measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664429.9A CN108801169B (en) | 2018-06-25 | 2018-06-25 | One-dimensional PSD sensor assembly suitable for satellite structure in-orbit deformation measurement |
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| CN108801169A true CN108801169A (en) | 2018-11-13 |
| CN108801169B CN108801169B (en) | 2020-10-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017768A (en) * | 2019-03-05 | 2019-07-16 | 上海卫星工程研究所 | A kind of design method avoiding PSD signal processing circuit output negative pressure |
| CN114136229A (en) * | 2021-12-01 | 2022-03-04 | 上海市计量测试技术研究院 | Design method for range splicing of one-dimensional PSD (position sensitive detector) sensor |
| CN114485447A (en) * | 2022-01-17 | 2022-05-13 | 上海卫星工程研究所 | Satellite-borne laser measuring device |
| CN114543668A (en) * | 2022-01-24 | 2022-05-27 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane orientation change |
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| CN102620756A (en) * | 2012-03-27 | 2012-08-01 | 天津大学 | Phase sensitive demodulator (PSD) signal single-channel processing method based on modulated laser, and processing circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017768A (en) * | 2019-03-05 | 2019-07-16 | 上海卫星工程研究所 | A kind of design method avoiding PSD signal processing circuit output negative pressure |
| CN114136229A (en) * | 2021-12-01 | 2022-03-04 | 上海市计量测试技术研究院 | Design method for range splicing of one-dimensional PSD (position sensitive detector) sensor |
| CN114136229B (en) * | 2021-12-01 | 2023-09-19 | 上海市计量测试技术研究院 | Design method for one-dimensional PSD sensor range splicing |
| CN114485447A (en) * | 2022-01-17 | 2022-05-13 | 上海卫星工程研究所 | Satellite-borne laser measuring device |
| CN114485447B (en) * | 2022-01-17 | 2024-01-09 | 上海卫星工程研究所 | Satellite-borne laser measuring device |
| CN114543668A (en) * | 2022-01-24 | 2022-05-27 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane orientation change |
| CN114543668B (en) * | 2022-01-24 | 2023-11-10 | 上海卫星工程研究所 | Measuring system and method suitable for ultra-large array plane pointing change |
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| CN108801169B (en) | 2020-10-09 |
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