The role and application scope of laser ranging sensors in industrial applications are becoming more and more developed in today's increasingly developed technological war. Therefore, problems plague users during use. What should be paid attention to in use is that

1. The installation of the instrument requires a stable and fixed platform;

2. The laser ranging sensor avoids strong light;

3. The installation should be wired according to the wiring instructions.

  color effect

  The color of the object being measured affects the resolution and accuracy of the measurement. White, red, yellow and orange targets are more reflective than green, blue or black targets. The resolution parameters listed in this catalog are for white targets. The resolution of black targets is more than four times worse than that of white targets.

  The figure below shows the size of the reflectivity of the target objects of various colors. In general, the resolution is affected by the square of the received light intensity. For example, reducing the light intensity by a factor of nine will reduce the resolution by a factor of three.

  target requirements

  Banner triangulation sensors rely on the diffuse reflection of light by the target. Diffuse reflection is the equal scattering of light in all directions by an object. If the target surface is specular, then there is only one direction of light reflection. LG5, LG10, Q50 series sensors do not work on specular targets. The triangulation sensor also requires the surface of the object to be non-porous and opaque for accurate measurement. Translucent targets or porous materials such as plastics, foams, etc. can cause measurement errors in the sensor.

  metal surface

  For bare metal surfaces, although they have some diffuse reflection, their surface reflectivity is not uniform; therefore, the repeatability of different detection points on the metal surface or the same detection point will be reduced. This effect varies with different metals and depends on the coating of the metal surface. Therefore, for metal samples we recommend testing first in order to obtain the desired repeatability

  Measurement error

  The measurement error of an analog sensor is the sum of several performance parameters, not just the resolution of the sensor. For example, the LG5 laser measurement sensor detects the position of a dark plastic part in an environment with a temperature change of +/- 3°C at a medium speed setting. The errors are:

  Resolution: 48 μm (4 x 12 μm, the resolution of the white target)

  Linearity: 60 μm

  Temperature Effect: 21 μm ( 7μm/°C x 3°C )

  These independent errors can be calculated as their measurement error by square root evaluation:

  Measurement error = √482 + 602 + 212 = 80 μm