1. Laser Emission
The laser displacement sensor emits a very fine laser beam through its internal laser diode. This beam is highly linear and focused, striking the surface of the object being measured.
2. Light Reflection
After the laser beam hits the object's surface, it reflects back. The angle and direction of the reflected light vary depending on the surface properties of the object and the sensor's position. The sensor receives the reflected light through a receiving unit, usually a position-sensitive photodiode or a CCD/CMOS image sensor.
3. Triangulation Method
The core technology of laser displacement sensors is based on laser triangulation. When the laser beam strikes the object’s surface and reflects, the sensor uses the triangular geometric relationship between the laser emission point, the reflection point, and the sensor’s receiving point to calculate the distance between the object and the sensor by detecting the angle of the reflected light. This measurement method ensures high precision, making it especially suitable for measuring small displacements or complex surfaces.
4. Data Processing and Output
The laser displacement sensor's internal processing unit converts the measured data into standard electrical signals, such as analog or digital signals, for further analysis and processing by subsequent equipment. These signals are typically used in applications like monitoring, automated control, or quality inspection.
ATINY laser displacement sensors, with their high precision, efficiency, and wide applicability, have become indispensable measurement tools in modern industrial automation. Whether in welding, assembly, or quality inspection, they provide strong technical support for improving production efficiency and product quality.
