Tunnel Detection 40m Laser Distance Module

The tunnel detection laser distance module is a phased rangefinder sensor designed for measuring distances up to 40 meters using laser technology. It’s commonly used in applications such as tunnels, construction sites, mining operations, or industrial inspections.

Key Features of a 40m Laser Distance Module:

1. Measurement Range: Up to 40 meters.

2. High accuracy: Typically ±1–2 mm depending on environmental factors.

3. Laser Technology: Phase-shift principle to calculate distance.

4. Output Interface: Digital output UART, RS485, USB, RS232 allows communication with Arduino, Raspberry Pi, PLC, etc.

5. Operating Environment: Works well in tunnels, caves, and enclosed spaces due to stable performance without GPS dependency.

6. Mounting Integration: Compact design, easy to mount on drones, robots, surveying equipment, or fixed structures. Laser detection sensor can be integrated into autonomous vehicles or inspection robots for obstacle detection.

Applications:

1. Tunnel wall thickness monitoring: Detecting wall deformation, cracks, or structural shifts over time.

2. Mining safety and depth tracking: Monitoring roof collapse risks by measuring distance from the ceiling.

3. Construction site alignment and leveling

4. Robotics navigation (especially in GPS-denied areas)

5. Automated Guided Vehicles (AGVs): Avoiding obstacles inside tunnels or warehouses.

6. Surveying Mapping: Creating 3D point clouds when combined with rotating platforms.

Example 40m Laser Distance Module:

1. M88B laser distance sensor: Low cost, popular in factories/tunnels.

2. M703A: Affordable with 8hz, widely used in robotics.

3. M95 rangefinder sensor: High precision and IP54, good for short-to-medium range.

4. MB2A: MODBUS RTU RS485, used in custom.

The 40m laser detection sensor is combination of long range, high accuracy, and rugged design, and makes it ideal for automation, safety monitoring, and surveying tasks. If you’re building or upgrading a tunnel inspection system, this laser distance module can provide real-time data essential for preventing accidents and maintaining infrastructure integrity.

Let me know if you want recommendations based on your project specs.