Detailed LDR80K2 Specifications
The technical material below is retained for this model only. Do not transfer a range, pulse, interface, mechanical or safety value from another 1064 nm product.
TECHNICAL SPECIFICATIONS
|
Laser Wavelength |
1064nm±1nm |
|
Pump Mode |
Side-pumped semiconductor (diode) pumping |
|
Designation Frequency |
Fixed Frequency: 45 ms – 125 ms (default 20 Hz) |
|
Trigger Mode |
Internal-Synchronization Illumination / External-Synchronization Illumination |
|
Output Energy |
TBC - the controlled LDR80K2 source records |
|
Dimensions |
≤150×102×55mm |
|
Weight |
≤850g |
|
Designation Capability |
≥10km |
|
Q-Switch Type |
Electro-optic Q-switch (EO Q-switch) |
|
Pulse Width |
15ns ±5ns |
|
Beam Divergence |
≤0.15mrad |
|
Energy Instability |
≤8%(RMS) |
|
Laser Designation Performance |
Short-duration irradiation mode: The irradiation time for each cycle is 17 seconds, followed by a 30-second interval. The system can perform up to 8 consecutive irradiation cycles. Long-duration irradiation mode: The irradiation time for each cycle is 60 seconds, followed by a 45-second interval. The system can perform up to 4 consecutive irradiation cycles. |
|
Optical Axis Parallelism Error Relative to Mounting Datum |
≤0.5mrad |
|
Ranging Performance |
· Minimum Measuring Distance: ≤ 300 m · Maximum Measuring Distance: ≥ 15 km · Ranging Frequency: 1–20 Hz (up to 3 simultaneous targets) · Ranging Accuracy: ≤ 5 m · Probability of Valid Ranging: ≥ 98% · Continuous Ranging Operating Time: 90 s |
|
Communication Serial Interface |
RS422 |
|
External Synchronization Interface |
+5 V differential line driver/receiver, RS-422 interface (delay from external synchronization signal to laser emission: 304.0 μs ± 0.1 μs). |
|
Laser Coding Mode |
l Precise Frequency Coding l Time Coding l Pseudo-Random Coding |
|
Period Accuracy |
<+-1us |
|
Power Supply |
DC 20V ~ 28V |
|
Power Consumption |
During operation, the average power consumption is not more than 55W, and the peak power consumption is not more than 100W. |
|
Low-Temperature Test |
Operating temperature: −40 °C |
|
High-Temperature Test |
Operating temperature: +60 °C |
|
Damp-Heat Test |
Relative humidity: 95% ± 3% |
|
Shock Test |
Waveform: Half-sine pulse Vertical axis: ≥ 10 g Shock waveform: post-peak sawtooth, duration 11 ms, applied along the X, Y, and Z axes, in both directions on each axis, three shocks per direction, for a total of 18 shocks. Test condition: Post-test requirement: |
|
Vibration |
The equipment shall withstand flight vibration and the shocks occurring during takeoff and landing, and all components shall meet the environmental conditions of vehicle transportation. The vibration profile is a swept-frequency spectrum: l From 5 Hz to 16 Hz, constant-displacement sinusoidal vibration with an amplitude of 1.5 mm; l From 16 Hz to 60 Hz, constant-acceleration sinusoidal vibration with an acceleration level of 1.5 g. Each of the three axes shall be vibrated for 36 minutes. Test condition: Post-test requirement: |
OUTLINE DIMENSION(mm)
PIN INTERFACE
- The electrical connection interface consists of connectors J30J-21ZKP and J30J-04ZK, which are defined as follows:
Table 1 J30J-21ZKP Interface Definitions
| J30J-21ZKP | ||||
| pinout | functionality | clarification | orientations | note |
| 1 | TX+ | RS422 + | exports | RS422 communication interface |
| 2 | TX- | RS422 send - | exports | |
| 3 | RX+ | RS422 Receive + | importation | |
| 4 | RX- | RS422 Receive - | importation | |
| 5 | GND | RS422 Ground | GND | |
| 6 | EN+ | power supply enable (computing) | 24V power supply enable switch | |
| 7 | EN- | power supply enable (computing) | ||
| 8-13 | unoccupied | |||
| 14 | A | External Synchronous Differential+ (A) | importation | A, B are the A and B outputs of the differential chip (RS422 chip) |
| 15 | B | External Synchronous Differential - (B) | importation | |
| 16 | LED+ | DC5V | importation | Indicator light power supply |
| 17 | LED- | GND | importation | |
| 18-21 | ||||
able 2 J30J-04ZK Interface Definitions
| J30J-04ZK | ||||
| Pinout | functionality | clarification | orientations | note |
| A, B | 24V | Power supply | importation | bonus |
| C, D | GND | electric place | importation | (loanword) hack (computing) |
2. Power supply interface: +24VDC±10%.
3. External trigger: RS422 differential signaling.
4. Cooling Mode: The cooling fan is located on the front of the unit.
Model-specific conditions and limits
Conditions are retained only when the source states them. They are not reconstructed from a nominal range or wavelength.
Read the controlled model table for its stated target, reflectance, visibility, temperature, rate and acceptance conditions. No additional condition has been inferred for this model.
Pulsed Time-of-Flight Ranging
A pulsed rangefinder estimates one-way distance from the round-trip delay of an accepted optical return. The equation is general engineering context, not an additional LDR80K2 specification.
Pulse energy describes emitted energy per pulse; its effect cannot be separated from pulse width, divergence, optical losses, receiver threshold and the stated target/atmosphere conditions. It is not a substitute for a model-specific near- or long-range acceptance test.
Source-stated application context
Application labels indicate evaluation context, not automatic fitness for a finished system.
The controlled LDR80K2 PDF describes long-range fire-control and surveillance systems, including UAV pods, vehicle turrets, and coastal or border-defense EO/IR payloads.
This context is bound only to the controlled LDR80K2 document; end-system suitability and acceptance remain subject to engineering review.
Confirm short- and long-distance acceptance conditions
- Define minimum distance, target material, reflectance, size and incidence angle.
- Check receiver recovery, optical-axis overlap and strong-return handling at the intended near limit.
- Verify supply tolerance, peak current, grounding, interface levels, connector and timing with the ordered revision.
- For long-distance acceptance, state target geometry, visibility, weather, background and required detection probability.
- Test with the installed window, boresight, field of view, enclosure and thermal path rather than a bare module alone.
- Evaluate accessible emission, labels and failure conditions again for the finished laser product under IEC 60825-1.
Questions to resolve before design release
Does a stated maximum range apply to every target?
No. A stated range must be read with its target and environmental conditions. Dark, small, oblique, wet or partially obscured targets and degraded visibility can reduce received signal.
Does 1064 nm itself establish the laser classification?
No. Classification concerns accessible emission from the finished laser product. The module statement and final instrument assessment are distinct.
Can a long-range claim be used as the minimum range?
No. Minimum-distance behaviour depends on the particular transmit/receive geometry, receiver timing and strong-return management documented for the model and host system.
Product evidence and general technical context
The model PDF controls model claims. Public references below explain general engineering principles only.
- ERDI LDR80K2 model PDFModel-specific technical evidence.
- System Design of a Pulsed Laser RangefinderOptical Engineering 30(3), 1991 - link budget, background, noise, detection and range error.
- The Short-Range, High-Accuracy Compact Pulsed Laser Ranging SystemSensors 22(6), 2146, 2022 - pulsed-ToF equation, timing error, reflectivity and temperature effects.
- Laser system range calculations and the Lambert W functionApplied Optics 48(4), B1-B7, 2009 - range performance versus atmospheric transmission, target and system parameters, and threshold SNR; its 1.06 µm example is general context, not ERDI model data.
- Monostatic all-fiber rangefinder systemApplied Optics 54(25), 7687-7694, 2015 - a measured case study of shared-aperture geometry and receiver-recovery loss; it does not establish an ERDI model limit.
- Light Transmission in Fog: The Influence of Wavelength on the Extinction CoefficientApplied Sciences 9(14), 2843, 2019 - measured and modeled wavelength-dependent fog attenuation.
- IEC 60825-1:2014Laser-product classification and accessible-emission requirements; final equipment requires system-level assessment.