China TianYing TY-LR85 miniaturized 30km ~ 40km 0.5Hz military laser rangefinder enables 0.5 Hz continuous rate acquisition of plane up to 30 km and building up to 40 km within 1m accuracy at 30km visibility.
Depending on weather conditions and target characteristics, ranges between 200 m to 45 km can be measured. Developed for integration into compact modern long range optronic systems, provides to dynamic targets in extremely compact unit that weighs 850 g. Up to 50 measurements can be carried out in 25 seconds with a measurement frequency of 2 Hz.
For normal erbium glass and fiber lasers must adopt large receiving aperture, also the performance is unstable and unreliable; old YAG OPO technology requires high energy or a large receiving aperture; the LRF-30km-0.5Hz uses cutting-edge YAG OPO lasers to provide ultra-compact size, mature and reliable performance under any conditions, it is ideal for camera system, fire-control system etc.
There is also an OPO 1570nm eye safe vision for the same size.
30km 0.5Hz continuous mainiaturized military Laser Rangefinder Features: 1) Typically up to 30 km with 0.5Hz-2Hz in 30km visibility and max 45 km ranging capability.
2) Variable repetition rate up to 2 Hz continuous.
3) Range accuracy < +/-1 m for target ranges.
4) Nd:YAG solid state laser.
5) Mature advanced technology and miniaturized design, weight 850 g with house.
6) Typically drone 0.05m² (DJI Phantom 4) ≥5.6km(~ 5.9km) of ≥5km flight altitude at 23.5km visibility.
7) There is also an option to add OPO functionality
30km ~ 40km 0.5Hz-2Hz continuous miniaturized Military Laser Rangefinder Recommended Use: 1) Optronic surveillance and reconnaissance.
2) Target tracking systems and anti-aircraft systems.
3) Fire control systems for land, air and sea targets.
4) For determination of flight altitudes on airports.
5) To measure the distance of ships from the coast.
6) In general for applications of position determination of dynamic objects.
30km~ 40km 0.5Hz-2Hz miniaturized Military Laser Rangefinder Mainly Specification:
Model
TY-LR85
Rangefinder
Laser Type
Nd: YAG
Wavelength
1064nm
Beam divergence
Approx. 0.8 mrad, option 0.5mrad.
Measuring rate(programmable)
typical 0.5Hz continuous, max 2Hz burst for 25 seconds.
Effective ranging
up to 30km of plane at ≥5km flight altitude at 30km visibility;
(Single measurement >13.7km mountain has been proven in 3km visibility)
Max range capability
45km
Accuracy
≤ +/-1m
Accuracy rate
≥ 98%
Electrical interface
Data interface
RS422
Power
20 - 30V DC
Peak power
≤45W
Environmental conditions
Operation Temperature
-40ºC~+60ºC
Storage temperature range (°C)
-55ºC~+75ºC
Vibration Shockproof
meet military standard
Reliability
Life
≥ one hundred thousand range measurements
Shot life time
≥one million.
Mechanical interface
Size
≤ 860 cubic centimeters
Weight
≤ 850g 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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