High-precision laser distance measurement sensor module

High-precision laser distance measurement sensor module uses light measurement, so all working ideas should follow the characteristics of light, such as light reflection, penetration and other characteristics.

The phased laser ranging sensor measures statically at the white wall of 3 meters indoors, with an accuracy of ± 1mm, a maximum rate of 20Hz (TTL interface, 485 and the fastest 10Hz of analog current interface), and a range of up to 80 meters (the reflection point needs to be equipped with a reflector).

Shortening the range does not lead to an increase in accuracy; The data rate returned by different interfaces will vary. TTL >> 232>> 485>> 4-20mA analog current interface.

Technical parameters
 
Model L3

Electricity DC 9-36V

Consumption

The maximum capacity is 0.8W, and the standby is less than 0.2W

System startup time 600ms

Optical device parameters

Wavelength: 650nm

Optical power: <1mW

Spot Type: Spot laser

Spot size: 10m<5mm

Working life: 6000-8000 hours

Communication interface

4-20mA analog current

Polt rate 9600/19200/38400/115200 Baud, default 115200

Serial port format

Baud rate: 115200

Data bits: 8

Stop bits: 1

Check: none

Flow control: none

Communication Agreement ASCII

Sampling rate 1, 2, 5, 10, 20Hz, default 1Hz

Range 0.03—80m

Zero-based standard Front-end

Resolution 1mm

Precision ± (1.5mm+ D*5‱), D is the measured distance

Repeat accuracy ±1mm

Working temperature -10—+50℃

Working humidity ≤RH85%（L3s）

Water-proof grade IP56（L3s）

Cable Aviation Cables (L3s)

Net weight 20.7 grams

Gross weight 21.2 grams

Size 79.05*36.61*14.3mm

*(1) With a strong reflector, it can measure a longer distance. The range value can be set by means of a downstream command up to 80 meters.

*(2) In bad environments, such as outdoor sunlight, the performance will be affected, and it can be used with the target reflector to improve the performance.

*(3) In fast mode, the recovered light signal is weak, and the error will become larger, which has certain requirements for the measurement target and distance.

*(4) Not suitable for outdoor daytime applications.