China TianYing TY-LR72 mini 1540nm 7km eye safe laser rangefinder module 1Hz continuous for tank, developed for class 1 eye safe and compact modern optronic reconnaissance tracking systems that require a high repetition rate of measured ranges from moving small targets.
Depending on target albedo, the extended range can be up to 5 Hz measurement frequency, measuring accuracy is better than 1m, the weight is only 300g, that 15km house 5 Hz has been proven at 20km visibility.
The LRF-10km leveraged the lastest technology to construct this remarkably compact, exceptionally accurate rangefinder, hence customer enable very easy integration into ships, land vehicles or aeroplanes platforms, inclduing camera system, fire-control system etc.
The performanc, price and quality that can compete with Europe company.
7km tank 1Hz continuous 1540nm Eye Safe Laser Rangefinder of Application: 1) Sensor suites on naval vessels, airborne or ground vehicles.
2) Fire control systems.
3) Remote weapon stations.
4) Observation and surveillance systems.
5) Coastguard and border control system..
6) Target tracking system and position determination.
1Hz (typical 2Hz) work 1minute and rest 1minute cycle.
Max 5Hz
Effective ranging(1Hz, standard 23.5km visibility, aerial craft such as plane at ≥5km flight altitude)
≥ 13km for large plane (≥ 15km building/house in 35km visibility).
≥ 8km of 5m² aircraft, even 9km.
Max range capability(1Hz)
20km
Accuracy
≤ +/-1m
Accuracy rate
≥ 98%
Electrical interface
Data interface
RS422
Power
8- 16V DC
Environmental conditions
Operation Temperature
-40ºC~+60ºC
Storage temperature range (°C)
-55ºC~+75ºC
Vibration Shockproof
meet military standard
Reliability
Life
≥five hundred thousandrange measurements
Shot life time
≥five million.
Mechanical interface
Size
≤ 310 cubic centimeters
Weight
≤300g
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.
For example, air to land read 2.3m X 2.3m target 10km, then, real target is including land and 2.3m x 2.3m target, or said this is measure big target distance. this is why some LRF said 28km for 4m x 6m 0.3 albedo vehicle at 28km visibility, then, when measure Phantom 4 drone, only measure 2.5km at 28km visibility, in fact typical 18-20km LRF can guarantee to measure Phantom 4 drone 3km ~ 4.2km in standard 23.5km visibility.
Also, max energy and stable state measuring range is different too, such as 15mJ-25mJ LRF, max energy is 25mJ, typical stable state is only 15mJ, only many companies are only said max energy, for example, said laser energy is not less than 25mJ, normal this is max energy.
In fact, only recognize tank 20km~30km, many 1200mm/2000mm/2200mm/2600mm CCTV camera can not meet in standard 23.5km visibility.
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 for low energy LRF, such as 1Hz-5Hz, 1Hz-10Hz, 1Hz-20Hz, 5Hz-25Hz etc, then their working distance have more different too.
About low energy 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, even 10Hz is balance less than 40%.
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, 5mj~8mJ Erbium-glass can not compete 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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