Laser displacement sensor is a new breakthrough point in the detection of different parameters such as displacement, thickness and height. Many people use the video of laser displacement sensor to prepare for in-depth understanding of its measurement method and application function. The triangulation method and the laser echo analysis method are the most commonly used measurement methods for displacement sensors. Now we will further analyze the differences between the triangulation method and the laser echo analysis method:

What are the differences between the triangulation method of the laser displacement sensor and the laser echo analysis method

1. The distance suitable for measurement is different

There is a big difference between the triangulation method of the laser displacement sensor and the laser echo analysis method in measuring the distance of the object. Generally speaking, the triangulation method can reflect the light to the surface of the object through the lens, so it is more suitable for the measurement of short-distance parameters; while the laser echo analysis method is more suitable for the measurement of long-distance parameters, because the distance of the echo is compared with the visible red The wavelength of light is longer.

2. The working principle on which the measurement is based is quite different

The triangulation method with high application rate of laser displacement sensor refers to the use of visible red laser to shoot the object to be measured, and then the laser is reflected by the object and received by the receiver lens. For example, the CCD linear camera obtains the distance between the light point detection laser and the camera through different angles; and the laser echo analysis method is mainly based on the time required for the emitted pulse to hit the obstacle and return.

3. The measurement accuracy is different

According to the feedback from many users, the triangulation method and the laser echo analysis method of the laser displacement sensor have different measurement accuracy. Many people have found that the triangulation method has higher measurement accuracy in machining and loading and unloading assembly operations, while the laser echo analysis method has a slightly lower measurement accuracy than triangulation due to its long distance measurement. .

According to the survey feedback, the application rate of laser displacement sensors in the market is increasing year by year, and the status of those laser displacement sensor manufacturers has also risen. According to the sharing of these manufacturers, the difference between the triangulation method of the laser displacement sensor and the laser echo analysis method is not only reflected in the difference in the measurement distance, but also in the principle on which the measurement is based and the accuracy level of the measurement.