| MHNV MH-LRF-20K Laser Rangefinder |
Engineer Manager Name: Jacky
WhatsApp/ Wechat: 0086-187 9245 6795
Email: mh_elec@126.com or jacky@mh-elec.com
MHNV "LRF-20K Laser Rangefinder" (hereinafter referred to as MH-LRF-20K) integrates a 7x medium - magnification direct-view optical system and a 20km ultra-long-range laser ranging function. It is an intelligent, portable, monocular hand-held direct-view optical laser rangefinder. It has functions such as ultra-long-distance and high-precision single-shot ranging, continuous ranging, relative ranging of multiple targets, self-positioning, and target positioning. The direct-view optics have no delay or frame drop, and it can still be used for approximate ranging in a degraded mode without power. It is also equipped with sufficient expansion interfaces to meet different application scenarios, which can be used for environmental reconnaissance and mapping, artillery fire correction, etc.
Working Principle
1. The 7x optical module magnifies the image within the field of view through the transmission,reflection, and refraction of light by lenses and prisms.
2. This product can perform laser ranging on the target to obtain the distance between the observation point and the target.
3. This product is equipped with an electronic compass accelerometer unit to measure the azimuth angle, pitch angle, roll angle, etc. between itself and the target.
4. This product has a GPS/BeiDou/Glonass positioning unit, which can receive local satellite information for self-positioning and calculate the local magnetic declination and meridian convergence angle.
5. This product can calculate the position coordinates of the target by combining the data of multiple sensors mentioned above, so as to perform target positioning, and can provide the geographical coordinates and projection coordinates of the target in multiple coordinate systems.
6. It has a complete RS232 interface, which can realize remote data transmission and control of this product.
7. It has multiple expansion interfaces, which can access digital CMOS optical units and medium-long -wave infrared units, and can be expanded with HDMI output, USB data import/export, and software upgrade functions.
Product Features
1. It can observe and aim at the target with 7 times white light magnification, without delay and frame drop, and can roughly measure the distance without battery, and use standard dense optical reticle.
2. It can temporarily record up to 10 recent targets, support relative distance measurement, angle measurement, height measurement, etc. of up to three targets, and support simultaneous distance measurement and display of three targets in front, middle and back.
3. It can perform self-positioning and target positioning, calculate the distance between itself and the target, the angle between itself and the target, etc., and can be externally triggered through the aviation plug line.
4. It can accurately and automatically calculate the magnetic declination of the location of the device,and display the true north angle/local azimuth).
5. It can accurately and automatically calculate the meridian convergence angle of the location of the device, and display the plane coordinate azimuth.
6. It can expand the infrared/low-light CMOS unit to cope with more complex application scenarios.
7. It has a multi-functional aviation plug interface, including RS232, DC12V, and remote ranging button; including an external multi-optical path module interface.
8. With high-definition video output function, the local OLED display can also be connected to an external HDMI high-definition video display device.
Performance parameters
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1.Optical Technical Parameters
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Category
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Item
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Parameter
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Optical performance
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Optical magnification
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7x±0.3x
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Field of view
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6.740.3° (Field of view:112m@1000m)
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Focus range
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50m~00
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Focus adjustment method
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Manual focus
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Aperture
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42mm
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Diopter
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-5SD~+5SD
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Crosshair reticle style
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6000MIL
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Function
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Milliradian crosshair illumination
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5 gears
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2. Laser Ranging Technical Parameters
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Category
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Item
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Parameter
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Ranging performance
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Laser wavelength
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1535nm (Eye safety)
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Beam divergence
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S0.5mrad
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Minimum range
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50m
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Maximum range .
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Large target ≥23km
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Vehicle target ≥18km
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Personnel target ≥29km
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UAV target ≥25km
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Distance measurement accuracy
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±5m
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Measurement frequency
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1Hz~5Hz
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Measurement logic
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Up to three targets
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Measurement resources (laser life)
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> 50,000 measurements
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Distance measurement record
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Last 10 goals
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Ranging function
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Unit
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Meter; Yard; Foot
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Relative distance measurement
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Support relative distance measurement and positioning of three target points
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3.Positioning Technical Parameters
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Category
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Item
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Parameter
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Positioning performance
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Positioning mode
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GPS/BeiDou/Glonass/Combination
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Own positioning accuracy
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Horizontal 2.5m (CEP), Elevation 10m (PE)
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Target positioning accuracy
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S20m
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Positioning frequency
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1Hz
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Coordinate system
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Geodetic coordinate system: SK42/WGS84
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Plane coordinate system: GAUSS 6°
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4.Directional Technical Parameters
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Category
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Item
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Parameter
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Directional performance
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Azimuth measurement range
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00-359°
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Azimuth measurement accuracy
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20.3(5Mil)(RMS,host inclination angle is 0°)
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Azimuth accuracy after map correction
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30.06°（1Mil)
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Pitch measurement range
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+90°--90°
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Pitch measurement accuracy
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≤0.1° (2Mil) (RMS.@-81~81°)
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Roll measurement range
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+180°--180°
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Roll measurement accuracy
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50.19(2Mil)(@-65
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Compass calibration
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Manual
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Angle unit
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Degrees, mils
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5.Storage and Browsing Technical Parameters
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Category
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Item
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Parameter
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Storage and browsing
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Storage capacity
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128G
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File export
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USB/wifi export
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6.Display Technical Parameters
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Category
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Item
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Parameter
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Display performance
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Display type
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OLED
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Display resolution
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1920*1080
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Display size
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0.71 inch
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Exit pupil diameter
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8mm
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Exit pupil distance
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18mm
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Screen protection
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Close to prevent light leakage
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When your face moves away from the eyepiece, the screen automatically turns off, when your face is close to the eyepiece, the screen automatically lights up.
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7.External Interface Technical Parameters
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Category
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Item
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Parameter
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Multi-function data line interface
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Distance measurement button
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Yes
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External power interface
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12V（±3V）
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External control command interface
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RS232
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Video interface
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HDMI
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8.Continuous Working Time Parameters
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Category
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Item
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Parameter
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Continuous working time
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Working time
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≥10 hours (21700*3, @20℃, distance measurement 1 time/min)
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Battery installation method
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Each section can be installed in either direction
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External power supply
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≥224 hours
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Lithium battery type
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Low temperature 3*21700 lithium battery
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9.Physical Parameters
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Category
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Item
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Parameter
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Physical parameters
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Dimension
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≤190mm*240mm*100mm
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Weighm
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2.5kg
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10.Environmental Adaptability Parameters
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Categony
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Item
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Parameter
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Environmentul aduptubility
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Protection level
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IP67
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Operating temperature
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-40℃~60℃
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Storage temperature
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-50℃~70℃ (0℃~40℃ is the best)
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11.Environmental Measurement Parameters
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Category
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Item
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Parameter
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Temperature
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Meusuring range
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-40℃-60℃
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Measuring accuracy
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+1℃
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Humidity
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Mcasuring range
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0%RH-100%RH
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Meusuring uccuracy
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±3%RH （15%RH-90%RH)
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5%RH（The remaining)
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Ait pressure
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Measuring range
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200hPa~1100hPa
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Measuring accuracy
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+2hPa
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Engineer Manager Name: Jacky
WhatsApp/ Wechat: 0086-187 9245 6795
Email: mh_elec@126.com or jacky@mh-elec.com
Request A quick Quote (WhatsApp:+ 86-18792456795)
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