Laser rangefinder B93D

Order the B93D Laser Rangefinder - Precise Vision for your Drone!

Laser rangefinder B93D is a professional measuring sensor for quadcopters. It accurately determines the distance from the drone to the ground or objects. This module is critical for autonomous flight and precision positioning. You will be able to provide your device with a stable hover and a safe descent. It is a key component for autonomous landing and mapping missions.

This device uses a safe laser beam for measurements. It does not depend on the GPS system and works in any conditions. The rangefinder provides accurate data on the height above the surface. This allows the drone to maintain a given altitude with minimal error. Your automatic flights will become much more reliable.

• High measurement accuracy distances with millimeter resolution.

• Long range up to several tens of meters.

• Independence from external lighting and GPS signal.

• Compact and lightweight body for easy on-board integration.

• Digital communication interface for easy connection to a flight controller.

How does this laser measuring module work?

The rangefinder emits a short pulse of laser light. This beam is reflected from the surface of the earth or an obstacle. The sensor picks up the reflected signal and records the delay time. Knowing the speed of light, the processor calculates the exact distance. The result is transmitted to the flight controller in real time.

This method is called pulsed or time-of-flight. It provides high precision on different types of surfaces. Unlike ultrasonic sensors, lasers are not affected by wind. It is also not affected by acoustic interference in the environment. You get stable data for autopilot decision making.

The technical characteristics of the B93D make it a versatile tool. The measurement range is from 0.3 to 30 meters. The accuracy over the entire range reaches several centimeters. Up to 100Hz update rate for smooth control. The beam's viewing angle is very small, reducing errors on inclined surfaces. Module power supply is 3.3-5V, current consumption is about 50 mA.

The functionality includes data output in digital format. I2C and UART interfaces are supported for communication with the controller. The module can operate in continuous measurement or single query mode. Built-in temperature compensation ensures stable readings. The device is protected against reverse polarity and short circuit.

Device and features

The design of the device is protected from external influences. The optics are covered with transparent and durable scratch-resistant glass. The aluminum alloy body effectively dissipates heat. Low weight and dimensions do not affect the flight characteristics of the drone. Installation is carried out using two screws or strong double-sided tape.

The rangefinder is compatible with popular flight controllers. It easily integrates with Pixhawk, Cube, Matek and other systems. The ArduPilot or PX4 autopilot has ready-made drivers for it. You will be able to use the data to hold altitude in AltHold mode. They are also used for precise landing using a laser beam.

This sensor is indispensable for a number of professional tasks. It is used in aerial photography to maintain a constant altitude. In agriculture, it helps to accurately maintain the spray height. Inspection of structures requires precise positioning of objects. Any autonomous mission benefits from accurate altitude measurement.

For accurate operation, it is important to install the rangefinder correctly. It should be placed vertically downwards with minimal vibration. Do not allow dust or water to contaminate the optical window. It is also important to calibrate the offset relative to the drone's center of mass. These simple steps will ensure that you receive accurate data.

Specifications

• Measuring range: 0.03–60 m
• Measuring accuracy: ±3mm
• Unit: Meter
• Measurement time: 0.4–4 s
• Laser class: Class III
• Laser type: 520 nm, <1 mW
• Size: 64×40×18 mm
• Weight: 13 g
• Frequency: 3Hz
• Voltage: 2.5-3.3V DC
• Operating temperature: 0–40 °C
• Storage temperature: -25–60 °C.