Miniaturized 40mJ Laser Rangefinder Target Designator
DESCRIPTION
The LDR40K1 Laser Ranging and Indication System is an advanced equipment specifically designed for high-precision target ranging and laser-coded indication. It not only achieves accurate long-distance measurements of ≥6000m but also has an effective range of ≥4000m for target indication. Renowned for its extreme lightweight design, the entire system weighs no more than 450g, making it compact and portable without compromising its stable and outstanding performance.
This system particularly offers customization services for the laser divergence angle, ranging from 0.3 to 1 mrad, flexibly meeting the needs of different operational scenarios. The LDR40K1 strictly adheres to internationally recognized standards, ensuring wide applicability and high reliability worldwide. With its exceptional durability, precise measurement capabilities, and compact, portable design, the LDR40K1 Laser Ranging and Indication System is undoubtedly the ideal choice for professionals pursuing efficient and accurate operations.
The laser ranging target indicator has the following functions:
- It responds to laser target indication commands and can indicate laser targets using prescribed internal and external synchronization encoding methods.
- If no stop command is received after initiating laser target indication, the indication will automatically stop after one cycle.
- Laser coding setting function.
- Laser ranging.
- If no ranging command is received, and no stop command is received after initiating continuous ranging, ranging will automatically stop after 5 minutes (1Hz) / 1 minute (5Hz) / 20 seconds (20Hz). These durations can also be modified according to user requirements through communication.
- Multi-target prompt function.
- Power supply reverse polarity protection function.
- Statistics on the number of laser pulse emissions.
TECHNICAL SPECIFICATIONS
Range Finding/Target Indication Parameters |
|
Laser ranging and target designation operating mode |
Ready to work instantly |
Maximum ranging distance |
≥6000m (visibility 10km, target reflectivity 0.2, target size 2.3m x 4.6m) |
Minimum ranging distance |
100m |
Ranging accuracy |
±2m |
Ranging logic |
3 goals |
Laser target designation distance |
≥4000m |
Ranging frequency |
1~20Hz |
Target designation frequency |
1~20Hz |
Accuracy rate (or Measurement success rate) |
98% |
Continuous ranging time |
5min(1Hz)/1min (5Hz)/20S(20hz) |
Continuous laser target designation time |
Short-cycle Laser Target Designation: Ø Duration of a single illumination is not less than 18 seconds, with an interval of not more than 10 seconds, and continuous illumination for 8 cycles. Long-cycle Laser Target Designation: Ø The duration of a single laser target designation is not less than 60 seconds. When initiating laser target designation again, the interval is not more than 60 seconds, and it is capable of continuous laser target designation for 4 cycles. Ø After a single long-duration or short-duration target designation, the interval for restarting is not more than 30 minutes. |
Encoding |
Complies with MIL-STD-810F requirements; possesses user-defined coding expansion capabilities. |
Laser encoding pattern |
Equipped with external synchronization signal reception capability. Precise frequency codes (eight sets of pre-stored periodic code encodings); |
Encoding accuracy |
≤2.5μs |
Laser Parameters |
|
Laser Type |
LD Pumped Nd:YAG Crystal |
Cooling Method |
Passive cooling, no temperature control |
Wavelength |
1064nm±3nm |
Single Pulse Energy |
≥40 mJ |
Energy Fluctuation |
<10% (Energy Standard Deviation / Average Energy Value × 100%) - Less than 10% (Energy Standard Deviation / Average Energy Value × 100%) |
Repetition Rate |
0~20Hz adjustable - Adjustable from 0 to 20 Hz |
Pulse Width |
≥15ns±5ns |
Beam Divergence Angle |
≤0.4mrad [Customizable 0.3mrad~1mrad] |
Laser Beam Axis Instability |
≤0.05mrad |
Laser Start-up Time |
10s |
Laser Safety Class |
Class 4 |
Environmental adaptability |
|
Operating Temperature |
-40℃~60℃ |
Storage Temperature |
-55℃~70℃ |
Vibration and Shock Standards |
Meets the vibration and shock requirements for airborne equipment as specified in MIL-STD-810F |
Electrical Parameters |
|
Power Supply Voltage |
20~28VDC(typical 24 V) |
Total Power Consumption |
Standby Power Consumption: ≤ 10 W Average Power Consumption: ≤ 50 W Peak Power Consumption: ≤ 100 W |
Communication Interface |
RS422 (Standard) |
Baud Rate |
115200bit/s |
Mechanical Parameters |
|
Weight |
≤445g |
Overall Dimensions |
≤116mm×71mm×53mm |
Non-parallelism between Mounting Base and Optical Axis |
0.5mrad |
STRUCTURAL DRAWING (mm)
ELECTRICAL INTERFACE
Baud Rate: 115200 bit/s
Communication Interface: RS422 Interface;
External Trigger Interface: Reserved for External Code Trigger Interface;
Connector Interface Definitions are provided in Table 1.
Table 1: Electrical Interface Definitions
Pin |
Definition |
Description |
1 |
422-GND |
RS422 Ground |
2 |
24V |
Power Supply + |
3 |
24V |
Power Supply + |
4 |
24VGND |
Power Supply - |
5 |
24VGND |
Power Supply - |
6 |
422_Rx+ |
Upper Computer ->Laser Rangefinder Target Designator + |
7 |
422_Rx- |
Upper Computer ->Laser Rangefinder Target Designator - |
8 |
422_Tx- |
Laser Rangefinder Target Designator ->Upper Computer- |
9 |
422_Tx+ |
Laser Rangefinder Target Designator ->Upper Computer+ |