ELRF-C15-Mini Laser Rangefinder Module

1. Overview

ELRF-C15-Mini laser range finder module is a laser range finder module developed based on the 1535nm erbium laser independently developed by Lumispot it adopts single pulse TOF Ranging mode . lt is composed of laser, transmitting optical system, receiving optical system and control circuit board, and communicates with host computer through TTL serial port provides host computer test software and communication protocol, which is convenient for users to develop the second time. lt has the characteristics of small size, light weight, stable performance, high impact resistance, first-class eye safety, etc., and can be applied to hand-held, vehicle-mounted, pod and other photoelectric equipment.

2. Structural Composition and Main Performance Indicators

ELRF-C15-Mini laser rangefinder consists of a laser, a transmitting optical system, a receiving optical system and a control circuit. The main performance is as follows:

2.1 Ranging Capacity

Visibility under the conditions of visibility is not less than 12km, humidity ≤80%：

≥4000 m (@60% reflectivity, building)

≥3000 m (@30% reflectivity, vehicle: 2.3×2.3 m)

≥2000 m (@30% reflectivity, human: 0.5×1.7 m)

≥1000 m (@30% reflectivity, UAV: 0.2×0.3 m)

2.2 Main functions

a) single ranging and continuous ranging;

b) Multi-target ranging;

c)Range gating;

d) Self-test function.

2.3 Performance

2.4 Interface

Communication Interface: TTL; Baud Rate: 115200 bps (default).

Electrical Interface: The connector model is FWF08002-S06B13W5M. Firmware can be updated via the serial interface. The interface pin definition is detailed in the table below.

2.5 Mounting drawing

3. User Precautions

l The laser emitted by this rangefinder is 1535nm, which is safe for human eyes. Although it is an eye-safe wavelength, it is advised not to look directly into the laser.

l When adjusting the parallelism of the optical axis, be sure to cover the receiving lens to avoid permanent damage to the detector due to excessively strong echoes.

l This Rangefinder Module is not airtight. Ensure that the relative humidity of the environment is below 80% and maintain a clean and sanitary environment to prevent damage to the laser.

l The range of the rangefinder is related to atmospheric visibility and the nature of the target. Range will be reduced in fog, rain, and sandstorms. Targets like green tree clusters, white walls, and exposed limestone have better reflectivity and can increase range. Additionally, increasing the angle of the laser beam to the target will reduce the range.

l Do not emit lasers at highly reflective targets such as glass or white walls within 15 meters to avoid echo overstrength and damage to the APD detector.

l Do not plug or unplug cables while the device is powered on.

l Ensure the correct polarity of the power supply connection to avoid permanent damage to the equipment.