Laser Distance Sensor Module

HAWKEEP HKP-L100S Laser ranging module laser distance sensor module

 

 

The HKP-L100S laser ranging module is an eye-safe laser ranging module in an optoelectronic system. It can detect the target distance and transmit the measured distance to the host computer through serial communication.

 

 

Structural composition and main functional indicators

HKP-L100S laser ranging module consists of laser, transmitting optical system, receiving optical system and control circuit. The main performances are as follows:

 

2.1 Distance

The visibility is not less than 15km under clear vision conditions, and the ranging distance for vehicles (2.3m×2.3m target, diffuse reflectance ≥0.3, humidity ≤80%) is ≥10km.

 

 

2.2 Main functions

The main functions of the laser ranging module are:

a) Single ranging and continuous ranging;

b) Range gating, front and rear target indication;

c) Self-test function.

 

 

2.3 Performance

a) Wavelength: 1535nm±5nm;

b) Laser divergence angle: ≤0.3mrad;

c) Continuous ranging frequency: 1~10Hz adjustable;

d) Distance measurement accuracy: ≤±2m (RMS);

e) Accuracy rate: ≥98%;

f) Minimum measuring range: ≤50m;

g) Ranging resolution: ≤30m; (multiple targets)

h) Power supply voltage: DC9~16V; (can be customized)

I) Weight: ≤140g;

J) Power: average power consumption ≤1.5W (1Hz operation), peak power consumption ≤5W;

K) Size: ≤83mm*68mm*46mm;

L) Working temperature: -40℃～+60℃;

M) Storage temperature: -50℃～+70℃.

 

 

2.4 Interface description

Communication interface: RS422, 115200bps;

Electrical interface: The interface model is Molex connector 51021-0800. The interface definition is detailed in the table below.

 

 

8P socket wiring definition
No.	Definition	Color	Remarks
1	RS422 RX+	Brown	RS422 Receive+
2	RS422 RX-	Blue	RS422 Receive-
3	RS422 TX-	Yellow	RS422 Transmitting-
4	RS422 TX+	Purple	RS422 Transmitting+
5	GND	White	Communication interface ground wire
6	+12V	Red	Power supply
7	GND	Black	Power supply ground wire
8	Null	Green	Null

 

 

 

 

The laser emitted by this rangefinder is a 1535nm laser that is safe for human eyes. Although it is a safe wavelength for human eyes, it is recommended not to look directly at the laser;

 

When adjusting the parallelism of the optical axis, be sure to block the receiving lens, otherwise the detector will be permanently damaged due to excessive echo;

 

This ranging module is non-airtight. Be sure to ensure that the relative humidity of the environment is less than 80% and that the environment is clean and hygienic to avoid damaging the laser;

 

The measuring range of the rangefinder is related to the atmospheric visibility and the nature of the target. Measuring range in fog, rain and windy sand will reduce the measuring range. Targets such as green leaf clusters, white walls, and exposed limestone have better reflectivity and can increase the measurement range. In addition, when the inclination angle of the target to the laser beam increases, the measurement range will be reduced;

 

It is strictly prohibited to emit laser at strongly reflective targets such as glass and white walls within 50 meters to avoid excessive echoes that may damage the APD detector;

 

It is strictly prohibited to unplug and plug in cables while the power is on;

 

Be sure to ensure that the polarity of the power supply is connected correctly, otherwise the device will be permanently damaged;

 

 

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