China TianYing TY-LR32 1570nm 40km 1~12.5Hz continuous eye safe laser rangefinder enables acquisition of 5m² UAV 25km, plane 40km and building up to 60km within 3m accuracy in 50km visibility.
Depending on weather conditions, target characteristics and measuring rate, ranges between 200 m to 60 km can be measured. Developed for integration into modern optronic reconnaissance tracking systems, provides class 1M eye safe to dynamic and fast moving targets, hence the 12.5Hz continuous 10minutes measuring rate and the extended range.
For erbium glass and fiber lasers that are unreliable under high temperatures and extremely harsh conditions, the LRF-40km-1Hz~12.5Hz uses Nd:YAG Diode-Pumped OPO lasers to provide mature and reliable performance under any conditions, it is ideal for camera system, fire-control system etc.
40km 1Hz~12.5Hz continuous 1570nm Eye Safe Laser Rangefinder Features: 1) Typically 5m² jet 25km, plane 40km and building up to 60km ranging capability at 50km visibility.
2) Pulse repetition frequency up to 12.5 Hz continuous 10minutes.
3) Range accuracy < +/-3 m for target ranges.
4) Diode-Pumped ND:YAG OPO.
5) ≤ 900 μrad beam divergence.
6) ANSI Z136.1-2007/ICE 60825-1:2007 Class 1M eye safe.
7) Mature advanced technology and compact design, weight ≤ 5.5 kg with house.
8) Typically UAV 0.05m² (DJI Phantom 4) ≥7.6km/5m² ≥21km of ≥5km flight altitude at 23.5km visibility.
Typical 12.5Hz work 2.5minues and rest 2.5minutes cycle.
Max 12.5Hz continuous 10minutes
Effective ranging(1Hz, 23.5km visibility)
≥ 34km for large plane at 6km flight altitude; can be 36km
> 19km of 5m² jet at 6km flight altitude/ 30% albedo, can be 21km
≥ 6.6km of drone 30cm x 8cm (0.024m²) at 6km flight altitude
Max ranging capability
60km
Accuracy
≤ +/-3m (RMS)
Accuracy rate
≥ 98%
False alarm rate
≤ 2%
Range gate
Yes
Extinction Ratio (1Hz)
≥53 dB (85% reflectivity at 500m target)
Cooling
Fan air flow.
Electrical interface
Data interface
RS422
Power
20 - 28V DC
Peak power
≤150W
Environmental conditions
Operation Temperature
-40ºC~+60ºC
Storage temperature range (°C)
-50ºC~+70ºC.
Vibration Shockproof
meet military standard
Reliability
Life
≥ One Million Range Measurements
MTBF
≥ 10000 hours
Mechanical interface
Size
≤ 6900 cubic centimeters
Weight
≤ 5.5kg with house
Packing and Warranty
Standarding accessories packing
Hard case, user's manual, RS422 communication cable kit etc
Warranty
one year
* - Note
*Product design and Technical information is subject to change without notice ** Depending on the region of sale.
Question: 1, Why many 20km/30km/40km laser rangefinder can not measure tank 10km in standard 23.5km visibility?
Because their 20km/30km/40km is theory data or high reflection large target in ideal visibility condition, even reflection need beyond 80% and visibility need beyond 50km.
2, Why many NATO target 10% reflection 12km laser rangefinder can not measure tank 10km in standard 23.5km visibility?
Because their 10% reflection is not real performance data, 2.3m x 2.3m NATO target is not real tank, or their NATO target effective size is different; normal the 2.3m x 2.3m target real albedo is 50% or more.
About test land standard, normal big target typical 20km LRF with 25km visibility, then, normal this LRF can measure their 2.3m x 2.3m target about 15km or more, then, real 30% albedo 2.3m x 2.3m target is only about 9km ~ 12km.
Also, starting state and stable state measuring range is different too, such as 15mJ-25mJ LRF, starting state is 25mJ, typical stable state is only 15mJ, only many companies are only said starting state, for example, said single pulse laser energy is at least 25mJ.
3, Why many laser rangefinder do not show measurement rate details?
Because max rate and continuous rate technology demand is different, such as max 12.5Hz 10 sec to 60 sec, maybe then 5Hz is max 1 min to 3 min with cycle.
Also, when rate have more different, such as 1Hz-5Hz, 1Hz-10Hz, 1Hz-20Hz, 5Hz-25Hz etc, then their working distance have more different too.
About 1.5µm eye safe laser rangefinder, if 1Hz is 10km, then, normal 5Hz is only balance about 80%~ 85%, normal 10Hz is only balance about 70%~80%, when this LRF laser energy is very low, then attenuation speed will accelerate.
4, Why normal mid-long range high rate laser rangefinder do not use for Erbium-glass laser?
Because normal Erbium-glass laser energy is too low, high rate continuous measuring time is too short, especially at extreme operating temperatures.
In fact, if Erbium-glass laser want to meet demand, energy need at least 2mJ, normal need 5mJ to 8mJ.
Then, Erbium-glass is not competitive with OPO and Raman shifted.
5, Why many laser rangefinder price is very cheap?
Because performance is different, for example: one LRF is used for bad cable, messy interface, messy wiring etc, then the LRF cost can reduce, even reduce much, but no warranty on performance.
If used for same performance, then our price is very cheap. that is why many laser rangefinder do not show their real main performance data.
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