30km Laser Range Finder Module

M3065x long range laser rangefinder module is a military pulse laser rangefinder designed for aircraft, unmanned aerial vehicle, tank, artillery and other application scenarios.It has the advantages of small size, light weight, low power consumption, stable performance, long measuring distance, long service life, eye safety and so on. JIOPTICS® is an important technical equipment to improve the product aiming accuracy. Welcome to buy 30km Laser Range Finder Module from us.

Ranging range: Visibility under the conditions of not less than 40km, for vehicles (2.3mX2.3m target), 0.3 diffuse reflectance, ranging distance ≥30000m;Visibility under the conditions of not less than 40km, large target, ranging distance ≥65000m;

Model:M3065X

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Product Description

JIOPTICS® 30km Laser Range Finder Module Parameters

Parameters	Specification	Note.
Wavelength	1570±5nm
Ranging capability	200m~65km
Ranging ability	≥30km(2.3m×2.3m, 0.3 reflectivity vehicle, visibility≥35km)	Humidity≤80%
Ranging ability	≥65km(for large targets, visibility≥40km)	Humidity≤80%
Ranging accuracy	±5m
Ranging repetition rate	1~10hz(adjustable)
Accuracy	≥98%
Divergence angle	≤0.6mrad
Receiving aperture	80mm
Communication interface	RS422
Supply voltage	DC18~32V
Operating power	≤50W(@1hz)	Tested under room temperature
Stand-by power	≤20W	Tested under room temperature
Dimension	≤225mm×150mm×100mm
Weight	≤3.8kg
Temperature	-40℃~65℃
Heat-dissipating	Air-cooling

Communication interface

Line NO.	Definition	Note.
1	Direct current	+24V Direct current
2
3
4
5	GND(direct current)	+24V GND
6
7
8
9	Serial port T+（from a laser rangefinder to upper computer+）	RS422
10	Serial port R-（from upper computer to a laser rangefinder-）
11	Serial port T-（from a laser rangefinder to upper computer-）
12	Serial port R+（from upper computer to a laser rangefinder+）
13	RS422 GND（connection is not necessarily required）
14	SYN+	RS422 differential external trigger, width＞10us
15	SYN-	RS422 differential external trigger, width＞10us

Dimension

Calculation of ranging ability

(1)Targets and condition requirements
Visibility≥40km
Humidity≤80%
For vehicles with 2.3m×2.3m dimension
Reflectivity=0.3
Ranging ability≥30km
(2)Analysis and verification
The main parameters that affect ranging ability are peak power of lasers, divergence angle, transmitting and receiving transmittance, wavelength of laser, etc.
For this laser rangefinder, it takes≥5MW peak power of lasers, 0.6mrad divergence angle, 1570nm wavelength, transmitting transmittance≥90%, receiving transmittance≥80% and 80mm receiving aperture.
It is a laser rangefinder for small targets, ranging ability can be calculated by the following formula. Ranging formula for small targets：

: Detectable optical power

: Transmitting power of laser rangefinder(5MW)

: Transmitting transmittance(0.9)

: Receiving transmittance(0.8)

: Optical receiving area(80mm receiving aperture)

: Effective reflection area of targets(5.29㎡)

: Target reflectivity(0.3)

: Atmosphere attenuation coefficient(0.02)

: Visibility(according to testing condition)

: Distance to targets
As long as detectable optical power that reflected by targets is larger than minimum detectable power, a laser rangefinder is able to range distance to a target. For a laser rangefinder with 1570nm wavelength, generally, the minimum detectable power(M.D.S) of APD is 5×10-9W.
Under 40km visibility with 32km distance to targets, the minimum detectable power is lower than M.D.S of APD(5×10-9W), therefore, under a condition with 40km visibility, a laser rangefinder can range distance for (2.3m×2.3m) targets up to 31~32km(might be close or less than 32km).

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