CN106374998B - The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity - Google Patents
The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity Download PDFInfo
- Publication number
- CN106374998B CN106374998B CN201610893910.6A CN201610893910A CN106374998B CN 106374998 B CN106374998 B CN 106374998B CN 201610893910 A CN201610893910 A CN 201610893910A CN 106374998 B CN106374998 B CN 106374998B
- Authority
- CN
- China
- Prior art keywords
- hot spot
- examining system
- measuring device
- frequency
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
- H04B10/0731—Testing or characterisation of optical devices, e.g. amplifiers
Abstract
The invention discloses a kind of pointing systems to the measuring device and method of beacon hot spot displacement sensitivity.The device uses the data processing method based on wavelet transformation, the light source displacements of remote fixed frequency, the variation of amplitude rule are generated by simulations such as laser, piezoelectric ceramic actuator, piezoelectric ceramics fast mirror, parallel light tubes, the amplitude and frequency of light source displacements are set in advance, light source is detected by examining system again, examining system can be obtained to the displacement sensitivity of beacon hot spot to the data processings such as resulting information progress wavelet transformation are detected by working computer.The present invention can effectively inhibit interference of the measuring table shake to measuring device, and simple and easy to do.
Description
Technical field:
The present invention relates to the measurements of high-precision system sensitivity, and in particular to a kind of pointing system is clever to beacon spot displacement
The measurement of sensitivity can be used for the system testing and system evaluation of the pointing system of laser space communication.
Background technique:
The core technology of laser space communication is acquisition tracking pointing, and inhibits irregularly trembling for satellite platform
It is dynamic, realize that the pointing technology of differential of the arc measurement level is difficult point therein.After the completion of a set of satellite laser communication terminal is developed, to wherein
Pointing system performance tested and assessed it is most important.The irregular chatterin of satellite platform has low-frequency high-amplitude degree, high frequency
The characteristics of low amplitude, so pointing system is that it inhibits energy to satellite platform irregular chatterin to the displacement sensitivity of beacon hot spot
The important parameter of power evaluation, however have the following problems to lead to be difficult to precise measurement pointing system sensitive to the displacement of beacon hot spot
Degree:
1. pointing system needs it to reach sub- to the displacement sensitivity of hot spot to realize the pointing precision of differential of the arc measurement level
Differential of the arc measurement level is even higher, and the spot displacement of sub-micro radian magnitude generates in laboratory conditions more difficulty；
2. conventional method is in laboratory conditions, accurately in order to measure pointing system to the displacement sensitivity of hot spot
The spot displacement of different amplitudes is set, then this spot displacement is detected respectively with examining system again, such process behaviour
Make relatively complicated；
3. testing indoor test platform itself, there are the irregular oscillations of more than ten or even tens urad magnitudes, for survey
Sensitivity of the pointing system to spot displacement sub-micro radian magnitude is measured, this irregular oscillation can introduce great error to measurement.
Summary of the invention:
In order to solve the technical problems in background technology, the present invention uses the data processing side based on wavelet transformation
Method is generated fixed at a distance by simulations such as laser, piezoelectric ceramic actuator, piezoelectric ceramics fast mirror, parallel light tubes
The light source displacements that frequency, amplitude rule change, the amplitude and frequency of light source displacements are set in advance, then by pointing system pair
Light source is detected, by working computer to detect resulting information carry out the data processings such as wavelet transformation can be obtained it is to be measured with
System is taken aim to the displacement sensitivity of beacon hot spot.
A kind of pointing system of the present invention includes: parallel light tube 1, piezoelectricity pottery to the measuring device of beacon hot spot displacement sensitivity
Porcelain fast mirror 2, laser 3, piezoelectric ceramic actuator 4 and working computer 5, it is characterised in that:
The measuring device is placed on stabilized platform, and is rigidly connected with stabilized platform；1 light of parallel light tube
Axis is contour with examining system optical axis and on same straight line；The light that the laser 3 issues drives through piezoelectric ceramic actuator 4
Dynamic piezoelectric ceramics fast mirror 2 is reflected into parallel light tube 1, simulates remote collimated light beam by parallel light tube 1, to
Examining system receives directional light, the facula mass center information that directional light generates in examining system is transferred to working computer 5, simultaneously
The activation bit of piezoelectric ceramic actuator 4 is transferred to working computer 5, the data finally obtained by 5 Duis of working computer are believed
Breath carries out the analyses such as wavelet transformation and obtains examining system to the displacement sensitivity of hot spot.
Pointing system is as follows to the measuring process of beacon hot spot displacement sensitivity:
1. the generation of light source displacement of the lines: driving piezoelectric ceramics rapid fire mirror 2 to generate frequency using piezoelectric ceramic actuator 4
The swing for being θ (t) for X, amplitude, the distance of 3 light emitting end tripping electroceramics fast mirror of laser, 2 mirror surface are L, can be equivalent
Generate frequency be X, the light source displacement of the lines that amplitude is 2*L* θ (t)；
2. data processing method: in working computer 5, to examining system detect resulting facula mass center data information into
The processing such as row wavelet transformation, obtains the T/F information that examining system detects resulting facula mass center data, m- at this
The time point t that frequency is X is first appeared in frequency information0, pointing system to be measured can be obtained to beacon hot spot displacement sensitivity
For θ (t0)/f, wherein f is the focal length of parallel light tube 1；
The method have the advantages that:
1. piezoelectric ceramics fast mirror high frequency characteristics is good, it is high to execute precision, use piezoelectric ceramics fast mirror as
The generation source of accurate um magnitude displacement, meets the accuracy requirement of test macro.
2. the um magnitude displacement of the lines for the light source high frequency that test macro simulates and the low frequency of test platform irregularly disturb
It is distinguished on frequency domain, the low frequency that can effectively reduce test platform irregularly disturbs interference to measurement.
3. the system integration is higher, there is the advantages of high-performance, high reliability.
Detailed description of the invention:
Fig. 1 is test principle figure of the pointing system to beacon hot spot displacement sensitivity.In figure: 1. parallel light tubes；2.
Piezoelectric ceramics fast mirror；3. laser；4. piezoelectric ceramic actuator；5. working computer.
Fig. 2 is piezoelectric ceramics fast mirror as swing source, and in conjunction with laser, simulation generates the light source line position of high frequency
It moves.
Fig. 3 is piezoelectric ceramic actuator output signal curve.
Fig. 4 is the displacement curve for the light source that test macro simulation generates.
Specific embodiment:
A specific embodiment of the invention is further described with reference to the accompanying drawing:
A kind of pointing system of the present invention is as shown in Fig. 1 to the measuring device of beacon hot spot displacement sensitivity, uses piezoelectricity
Ceramic driver drives piezoelectric ceramics fast mirror to generate the swing of high frequency, and as shown in Fig. 2, piezoelectric ceramic actuator is selected
The S330.8SL series of PI Corp.'s production, mechanical angle range are ± 10mrad, execute resolution ratio in 1urad hereinafter, laser
The distance of the beam emissions end tripping electroceramics reflecting mirror of device is 25mm.Signal curve such as Fig. 3 of piezoelectric ceramic actuator output
It is shown, frequency 10Hz, the amplitude of swing regular increase as illustrated.The focal length of parallel light tube is 1m, entire test macro
The light source displacements curve θ (t) simulated is as shown in Figure 4.As shown in Figure 1, by the system to be measured being overlapped with parallel light tube central axis
It unites parallel optical detection that parallel light tube is issued, the light source that the facula mass center information detected is simulated with test macro
Displacement information successor's working computer.In working computer, resulting facula mass center data information is detected to examining system and is carried out
The processing such as wavelet transformation, obtains the T/F information that examining system detects resulting facula mass center data, m- frequency at this
The time point t that frequency is 10Hz is first appeared in rate information0, pointing system to be measured can be obtained to beacon hot spot displacement sensitivity
For θ (t0)。
Claims (2)
1. a kind of pointing system is to the measuring device of beacon hot spot displacement sensitivity, comprising: parallel light tube (1), piezoelectric ceramics is fast
Fast reflecting mirror (2), laser (3), piezoelectric ceramic actuator (4) and working computer (5), it is characterised in that:
The measuring device is placed on stabilized platform, and is rigidly connected with stabilized platform；Described parallel light tube (1) optical axis
It is contour with examining system optical axis and on the same straight line；The light that the laser (3) issues is through piezoelectric ceramic actuator (4)
The piezoelectric ceramics fast mirror (2) of driving is reflected into parallel light tube (1), is simulated by parallel light tube (1) flat at a distance
Row light beam, examining system receive directional light, the facula mass center information that directional light generates in examining system are transferred to work meter
Calculation machine (5), while the activation bit of piezoelectric ceramic actuator (4) is transferred to working computer (5), finally by working computer
(5) resulting facula mass center data information is detected to examining system and carries out the position that wavelet transformation analysis obtains examining system to hot spot
Move sensitivity.
2. it is a kind of based on the pointing system of claim 1 described device to the measurement method of spot displacement sensitivity, feature exists
In the following steps are included:
1) generation of light source displacement of the lines: frequency is generated using piezoelectric ceramic actuator (4) driving piezoelectric ceramics rapid fire mirror (2)
The swing for being θ (t) for X, amplitude, the distance of laser (3) light emitting end tripping electroceramics fast mirror (2) mirror surface are L, can
Equivalent generation frequency is X, the light source displacement of the lines that amplitude is 2*L* θ (t)；
2) data processing method: in working computer (5), resulting facula mass center data information is detected to examining system and is carried out
Wavelet transform process obtains the T/F information that examining system detects resulting facula mass center data, in the T/F
The frequency of occurrences is the time point t of X in information0, can show that pointing system to be measured is θ (t to beacon hot spot displacement sensitivity0)/f,
Wherein f is the focal length of parallel light tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893910.6A CN106374998B (en) | 2016-10-13 | 2016-10-13 | The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893910.6A CN106374998B (en) | 2016-10-13 | 2016-10-13 | The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106374998A CN106374998A (en) | 2017-02-01 |
| CN106374998B true CN106374998B (en) | 2019-01-25 |
Family
ID=57895210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610893910.6A Active CN106374998B (en) | 2016-10-13 | 2016-10-13 | The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106374998B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204801A (en) * | 2017-07-12 | 2017-09-26 | 中国科学院上海技术物理研究所 | It is a kind of to measure the device and method that pointing system interference suppresses bandwidth |
| CN107543682A (en) * | 2017-09-08 | 2018-01-05 | 中国科学院上海技术物理研究所 | A kind of device and method of active suppression optical system for testing shake |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804711A (en) * | 2006-01-16 | 2006-07-19 | 中国科学院光电技术研究所 | Apparatus for improving light beam quality of solid laser by using in-chamber adaptive optical technology |
| CN102185659A (en) * | 2011-03-23 | 2011-09-14 | 中国科学院上海技术物理研究所 | Quantum communication ATP (array transform processor) precise tracking system with optical axis self-calibrating function and calibrating method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7355793B2 (en) * | 2004-05-19 | 2008-04-08 | The Regents Of The University Of California | Optical system applicable to improving the dynamic range of Shack-Hartmann sensors |
| CN206149275U (en) * | 2016-10-13 | 2017-05-03 | 中国科学院上海技术物理研究所 | Measurement device for with taking aim at system to beacon facula displacement sensitivity |
-
2016
- 2016-10-13 CN CN201610893910.6A patent/CN106374998B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1804711A (en) * | 2006-01-16 | 2006-07-19 | 中国科学院光电技术研究所 | Apparatus for improving light beam quality of solid laser by using in-chamber adaptive optical technology |
| CN102185659A (en) * | 2011-03-23 | 2011-09-14 | 中国科学院上海技术物理研究所 | Quantum communication ATP (array transform processor) precise tracking system with optical axis self-calibrating function and calibrating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106374998A (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103759641B (en) | Three-dimensional micro-scale measurement device and method based on four-core fiber grating | |
| CN106209221B (en) | A kind of measuring device and measuring method of facula mass center extraction accuracy | |
| CN103292732B (en) | A kind of large-scale free form surface on-machine measurement device of extension type | |
| CN102589439B (en) | Contact type temperature non-inductive three-dimensional detection sensor based on fiber Bragg grating (FBG) | |
| US9618331B2 (en) | Method and equipment based on detecting the polarization property of a polarization maintaining fiber probe for measuring structures of a micro part | |
| CN103759652B (en) | Two-dimentional micro-scale measurement device and method based on double optical fiber grating | |
| CN102155986B (en) | Optical frequency metering and testing device for laser vibration measurer | |
| CN102798850B (en) | Rayleigh-Doppler laser radar ground calibration system | |
| CN109470176B (en) | High-precision three-dimensional angle measuring method and device based on double gratings | |
| Xiong et al. | Workspace measuring and positioning system based on rotating laser planes | |
| CN104197844A (en) | All optical fiber frequency domain interference absolute distance measurement method and device | |
| CN106425691A (en) | Laser interference principle-based precise main shaft rotation precision detecting device and method | |
| CN103759643B (en) | Two-dimentional micro-scale measurement device and method based on twin-core fiber grating | |
| CN106374998B (en) | The measuring device and method of a kind of pointing system to beacon hot spot displacement sensitivity | |
| CN105446051A (en) | Laser acousto-optical scanning method and device thereof | |
| CN102012401A (en) | Nondestructive testing method of heterogeneous property of solid material | |
| CN102508225B (en) | Double-shaft laser remote sensing instrument ground detection and calibration system and detection and calibration method | |
| CN206149275U (en) | Measurement device for with taking aim at system to beacon facula displacement sensitivity | |
| CN105115407A (en) | Portable multifunctional planeness detection device and application method therefor | |
| CN205594083U (en) | Detect piezoceramics piezoelectric constant d31's device | |
| CN103759653B (en) | Three-dimensional micro-scale measurement device and method based on five core fibre gratings | |
| CN104567796A (en) | 3D shooting ranging method | |
| CN108398090A (en) | Parallel institution formula coordinate measuring apparatus | |
| JP2006322820A (en) | Method and device of measuring displacement of actuator | |
| CN110631509B (en) | Object surface curvature detection system and method based on grating Talbot image |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |