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  • Laser-Proximity-Detection-Device.jpg
  • Laser-Proximity-Detection-Device1.jpg

Laser Proximity Detection Device

Model:

Classification:

Keyword: dynamo,Water pump series

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Product Introduction

Features

Operating wavelength: 900nm±10nm

Module configuration: 3Tx+3Rx

360° field of view @3-4m (1m*1m reflector, 80% reflectivity)

Forward azimuth: 20°

Power supply: 12V&40V (typical values)

Max. power consumption: 4.6W

Miniature structure

Strong background light resistance

Applications

Industrial LiDAR, collision avoidance systems

Functional Block Diagram

Laser

Figure 2 Functional Block Diagram

Performance Indicators

Table 1 Electrical Performance Parameters

Parameter Name Symbol Test Conditions(Vcc=20V, Vbias=40V, reflector size: 1m*1m, emissivity=80%, emission frequency=20KHz, emission pulse=50ns) Parameter Value Unit
Min. Value Typical Value Max. Value
Max. Detection Distance Ra Detector avoids direct sunlight, target surface perpendicular to laser beam 3 4 — m
Blind Zone Ang Detector avoids direct sunlight — 0 — m
Forward Azimuth Fa Guaranteed by design — 20±2 — o
Field of View Fo Test range set at 3.5m — 360 — o
Pulse Width Pw Considering laser reliability and ranging capability 30 50 60 ns
Laser Transmitter Repetition Rate PRF Considering laser reliability at 50ns pulse width — 20 25 KHZ
Laser Driver Voltage Vtr High Level (Trig-x) 3   5 V
Low Level (Trig-x) 0   0.3
Detector Reception Voltage Vre High Level (DRX) 3 3.3 3.6 V
Low Level (DRX)   10 50 mV
Current @20V Icc Each time 1 laser transmitter is turned on (standard application) — 95-100 — mA
Each time 2 laser transmitters are turned on   130-140  
Each time 3 laser transmitters are turned on   165-180  
Current @40V Ibias Depends on light intensity (tested under dark background) — <500nA — nA

Absolute Max. Ratings

Power Supply @ 20V Power Supply @ 40V Operating Temperature Storage Temperature
25V 50V -40~+70℃ -40~+85℃
Laser Emission Repetition Rate Laser Emission Pulse Width — —
25KHZ @ PW40ns 40ns@PRF=16KHZ — —

Mechanical Structure Dimensions Unit: mm

Laser

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