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1535nm Laser Rangefinder -A8K20 is a high-precision laser rangefinder module made out of erbium glass lasers that developed by Erbium Tech. It is a device to determine distance to an object by detecting return signal of laser pulse.Its raw materials including erbium glass and erbium glass laser are both developed and researched by Erbium Tech. With mature technology and stable performance, it can determine distance not only to static objects but also to dynamic objects and can be set on various equipment to achieve wide range of application.
1.Technical parameter
Item | technical parameter | Instruction |
Working wavelength | 1535±5nm | |
Ranging range | 50m~8km | 2.3m×2.3m vehicle target, 0.3 diffuse reflectance, visibility ≥10km; |
50m~15km | Energy intensity ≥ 20km, 0.3 large reflectivity target; | |
Ranging accuracy | ±2m | 3δ |
ranging frequency | 1~10Hz adjustable | |
Accuracy rate | ≥98% | |
Divergence angle | ≤0.5mrad | |
Receiving caliber | 40mm | |
Communication Interface | RS422 | |
voltage | DC18~32V | |
Working power consumption | ≤1.2W(@1hz) | Normal temperature test |
≤0.5W | Normal temperature test | |
Size | ≤80mm×67mm×47mm | |
Weight | ≤120g |
2.Structure installation interface
3.External Interface
Connector model: MDC1-15SW1 | |||
Pin number | Definition | Function | Remark |
1 | VEE | power input positive | DC9-36V |
2 | GND | power input ground | |
3 | RS422_T/R+ | RS485+/RS422 send positive | |
4 | RS422_T/R- | RS485+/RS422 send nagative | |
5 | RS422_RXD- | RS422 receive negative | |
6 | RS422_RXD+ | RS422 receive positive | |
7 | RS232-TX | RS232 send | |
8 | RS232-RX | RS232 take over | |
9 | TTL-TX | TTL send | 3.3V |
10 | TTL-RX | TTL take over | 3.3V |
11 | GND | place of communication | |
12 | NC | Alternate | |
13 | NC | Alternate | |
14 | NC | Alternate | |
15 | NC | Alternate | |
4.Environmental adaptability
a) working temperature：-40℃～+60℃。
b) Storage temperature：-45℃～+70℃。
C) Random vibration: 15～2000Hz, 3 directions. The specific test conditions are shown in Table 1.
Table 1 Random vibration test conditions
Serial number | Frequency range (Hz) | Acceleration spectral density (g2/Hz) | Vibration time (min) |
1 | 15～190 | 0.01 | Vibration in every direction 15 min |
2 | 190～210 | 0.1 | |
3 | 210～380 | 0.01 | |
4 | 380～420 | 0.025 | |
5 | 420～2000 | 0.01 |
