1535nm Laser Rangefinder -15K25
Parameters
|
Parameters |
Specification |
Note. |
|
Wavelength |
1535±5nm |
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|
Ranging capability |
100m~15km |
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|
Ranging ability
|
≥15km(2.3m×2.3m, 0.3 reflectivity vehicle, visibility≥20km) |
Humidity≤80%
|
|
≥25km(for large targets, visibility≥30km) |
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Ranging accuracy |
±3m |
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|
Ranging repetition rate |
1~5hz(adjustable) |
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|
Accuracy |
≥98% |
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|
Divergence angle |
≤0.3mrad |
|
|
Receiving aperture |
63mm |
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|
Communication interface |
RS422 |
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|
Supply voltage |
DC18~32V |
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|
Operating power |
≤20W(@1hz) |
Tested under room temperature |
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Stand-by power |
≤5W |
Tested under room temperature |
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Dimension |
≤117mm×71mm×121mm |
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|
Weight |
≤1kg |
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|
Temperature |
-40℃~65℃ |
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Heat-dissipating |
By thermal conduction |
|
Line NO. |
Definition |
Note. |
|
1 |
Direct current |
+24V Direct current |
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2 |
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3 |
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4 |
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5 |
GND(direct current) |
+24V GND |
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6 |
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7 |
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8 |
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|
9 |
Serial port T+（from a laser rangefinder to upper computer+） |
RS422 |
|
10 |
Serial port R-（from upper computer to a laser rangefinder-） |
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|
11 |
Serial port T-（from a laser rangefinder to upper computer-） |
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|
12 |
Serial port R+（from upper computer to a laser rangefinder+） |
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|
13 |
RS422 GND（connection is not necessarily required） |
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|
14 |
SYN+ |
RS422 differential external trigger, width＞10us |
|
15 |
SYN- |
Targets and condition requirements
Visibility≥20km
Humidity≤80%
For vehicles with 2.3m×2.3m dimension
Reflectivity=0.3
Ranging ability≥15km
Analysis and verification
The main parameters that affect ranging ability are peak power of lasers, divergence angle, transmitting and receiving transmittance, wavelength of laser, etc.
For this laser rangefinder, it takes≥100kw peak power of lasers, 0.3mrad divergence angle, 1535nm wavelength, transmitting transmittance≥90%, receiving transmittance≥80% and 63mm receiving aperture.
It is a laser rangefinder for small targets, ranging ability can be calculated by the following formula. Ranging formula for small targets：
As long as detectable optical power that reflected by targets is larger than minimum detectable power, a laser rangefinder is able to range distance to a target. For a laser rangefinder with 1535nm wavelength, generally, the minimum detectable power(M.D.S) of APD is 5×10-9W.
Under 20km visibility with 16km distance to targets, the minimum detectable power is lower than M.D.S of APD(5×10-9W), therefore, under a condition with 15km visibility, a laser rangefinder can range distance for (2.3m×2.3m) targets up to 15~16km(might be close or less than 16km).
|
Line NO. |
Definition |
Note. |
|
1 |
Direct current |
+24V Direct current |
|
2 |
||
|
3 |
||
|
4 |
||
|
5 |
GND(direct current) |
+24V GND |
|
6 |
||
|
7 |
||
|
8 |
||
|
9 |
Serial port T+（from a laser rangefinder to upper computer+） |
RS422 |
|
10 |
Serial port R-（from upper computer to a laser rangefinder-） |
|
|
11 |
Serial port T-（from a laser rangefinder to upper computer-） |
|
|
12 |
Serial port R+（from upper computer to a laser rangefinder+） |
|
|
13 |
RS422 GND（connection is not necessarily required） |
|
|
14 |
SYN+ |
RS422 differential external trigger, width＞10us |
|
15 |
SYN- |
Targets and condition requirements
Visibility≥20km
Humidity≤80%
For vehicles with 2.3m×2.3m dimension
Reflectivity=0.3
Ranging ability≥15km
Analysis and verification
The main parameters that affect ranging ability are peak power of lasers, divergence angle, transmitting and receiving transmittance, wavelength of laser, etc.
For this laser rangefinder, it takes≥100kw peak power of lasers, 0.3mrad divergence angle, 1535nm wavelength, transmitting transmittance≥90%, receiving transmittance≥80% and 63mm receiving aperture.
It is a laser rangefinder for small targets, ranging ability can be calculated by the following formula. Ranging formula for small targets：
As long as detectable optical power that reflected by targets is larger than minimum detectable power, a laser rangefinder is able to range distance to a target. For a laser rangefinder with 1535nm wavelength, generally, the minimum detectable power(M.D.S) of APD is 5×10-9W.
Under 20km visibility with 16km distance to targets, the minimum detectable power is lower than M.D.S of APD(5×10-9W), therefore, under a condition with 15km visibility, a laser rangefinder can range distance for (2.3m×2.3m) targets up to 15~16km(might be close or less than 16km).
