Laser spatial informat← ">ion sensing technology
Different from the conventional laser sp©↑₹atial information sensors a♦Ωpplied in industrial automation and unmδ←'anned field, the order of magnituσ≈™de based on the advantages of la→€"ser limit detection and coherent de✔λ★tection, focusing on lon♦α¶ g-range tracking laser ranging, long-range lσ♥idar, laser wind measε☆γurement radar, mapping lidar and other special ↓→ laser spatial information sensγ♠↓$ing sensors, applied <®in airborne, shipborne and other special equipme¥'αnt occasions.
Laser ranging and tracking system
[Long range single ph✔↑×oton laser ranging system.]
Function description
The detection sensitivity of traditional l♦♠ε inear system lidar and laser ranging system ca↔£↑n only reach the order of 100 photons and 1,0ε§00 photons. However, sing€λ≈le photon and subphoton signals of high-sensitiviβ"¥ty single photon detector ca₹"♣n cause the response output photon✔₹× echo pulse of the detect←φ•or. Combined with ultra-narrow pulλ♠se high-frequency laser tec ∞πhnology, photon countin©π→ g correlation countin←≈↕≈g moving target filtering technology✘☆♥♣ and two-dimensional fast point<♥β♠ing technology, It can realize₩♠® the remote ranging fuφ φnction with autonomous pointing funct"↓¶ion. It can be used in beyond v♦®isual range optoelectron☆≠✘&ic imaging tracking system aφΩλnd other special equipme¶÷nt with long distance d®σ≤βistance measurement.
Characteristic parameter
Compared with the traditio$$★nal laser ranging system, λ♦the efficiency ratio advantage is obvi↓∏★"ous, the detection dist ×♦÷ance under the same volume power consump÷←≥tion condition is increased by₽≠ several times. The single-phot<→→∏on ranging system with two-dimensional p →∞ointing mechanism has the advantages of long dete≥£ction distance, high precision and fast poin★>βting, high data update rate, light miniat♠↔φurization and so on.
Special Lidar system
[Special Lidar system]
Function descripti≈ <on
Different from the lidar used in vehicle and r≠₽obot navigation and obstacle avoφ×idance, the special lidar system ✔©εis mainly characteri ↕εzed by panoramic imaging, remote imaging and mu¥λ±↕lti-echo detection. Through the multi-beam, ÷δcircumferent panoramic imaging, sin↔$¥gle photon detection or f→∑$ull waveform detection techn® ₹ology route, it can achieve a variety of ε≥functions, such as over-the-horizon remoteε↕γ panoramic lidar, remote cabl•e detection lidar and mapping lidar. It can be∏¥∞© applied to ship autonomous navigation, helicopσ∑γ∏ter obstacle avoidance, airborne ↔₹÷≠surveying and mapping, portable or wearab₽βle autonomous navigation and other scena≥βrios.
Characteristic parameter
Different from the conventional 100-meter lida♦¶★₩r, the special Lidar series has the featurγ♣✘&es of panoramic imaging, long✔×>-range imaging, high-resolution imaging and mult←©i-echo layered imaging, withσ÷ the operating range exc§™≤πeeding 2km and the number of channels exceed¶✘★∑ing 128 beams.
Laser coherent Doppler radar velocity me'★asurement-vibration measurement-wind me∏βπasurement
[Laser coherent Doppler velocity measuring ra&←dar, wind measuring radar, vibra↓↓↓¶tion measuring sensor]
Function description¶↔
Laser coherent Doppler detection technology ≥makes it possible to achiε δeve high precision measurement★≈ of speed, vibration and wind sp≈ eed at a distance by non-co✔♠₩ntact, telemetry. Laser coherent v±£elocity measurement and vibration m↓ ✔easurement are used to return ¥§•the target velocity and vibration ✘☆♣₩information with Doppler frequency shift aγαfter the modulated laser is irradiated to the so•↓±lid target. Laser coherent wind measureme←$Ωnt is to send laser t ₩γo the atmosphere, detect the Doppler shi±∞♣✔ft generated by the optical < £≠echo signal of aerosol particles to obtain the ↓¶∞radial velocity of laser beam direction, ✔♦and obtain the horizontal wind field inform★♠ation through three-®∑dimensional decomposition. Laser coherent D•↕αoppler radar has been δ"₹ applied in non-contact vibr £♥ation measurement, target navigation tra ★£≠cking, airborne wind measurement, stationary win♥↕★d field measurement and so on.
Characteristic par♥ε÷×ameter
The range of laser coherentσ∏ velocity measurement can be♥£≈ up to 3km, the rang∏λ☆e of velocity measurement c© an be up to -80m/s ~ +80m≥$/s, and the velocity resolution can be 0.¶←02m/s. The maximum range of laser co ₩≤¶herent microvibration measurement is 4m/s,↔×♠ and the vibration measurement accurac&≈←y is 0.02%. The accuracy of las€€≈βer coherent wind measurement is 0.1m/s, an✘∑d the operating distance♦≥π is up to 300 m. Laser coherence σ §®radar has the advantages of small sΩize, high ranging accuracy,$÷∏• high spatial and temporal resolution and h♠ε↕φigh data acquisition ra♦↓≈♠te.
