Nowadays, the industry has been developing rapidly, and the use of sensors is becoming more and more frequent, such as industrial production, ocean exploration, environmental protection, resource investigation, medical diagnosis, biological engineering, and even artificial intelligence, scientific research, cosmic development, cultural relic protection and so on. Spectral confocal controller can be used for segment difference detection, thickness detection, wafer detection, center positioning, etc. Today, Shenzhen Lii Technology Company introduces the difference between spectral confocal controller and traditional laser displacement sensor:

1. The measurement compatibility of traditional laser displacement sensors is weak, and the probe and installation method need to be changed repeatedly when measuring different material surfaces; The spectral confocal sensor can be compatible with both displacement and thickness measurement modes, and can be used for stable measurement of objects with different surfaces, multiple angles, and even multi-material mixtures without changing the probe and at fixed points. The very high scanning accuracy of the spectral confocal sensor makes it a perfect match for roughness measurement applications, such as camera modules, lens and support rings and lOGO segment difference for specific scene precision measurements.

2. Laser displacement sensor is generally used to measure planar objects, spectral confocal displacement sensor adopts coaxial measurement structure, has a wider Angle characteristics. The maximum measuring Angle of the specular surface confocal displacement sensor can reach ±62°, and the maximum measuring Angle of the diffused surface confocal displacement sensor can reach ±88°. In the measurement of non-plane will not be affected by the impact of the back light, even if the object to be measured has too large inclination or curved surface, you can also carry out high-precision shape measurement, such as the 3D glass profile in industrial testing, dispensing glue height and high-light metal surface segment difference, which need to use high-precision measuring instrument output 3D measurement data.

3. Laser displacement sensor generally adopts the principle of triangulation positioning and ranging measurement. Compared with the problem of large output light spot of traditional laser displacement sensor, the optical spot measured by spectral confocal displacement sensor can reach the minimum of 2.48um, and the measurement resolution can reach the nanometer level. The problem of measuring objects with small geometric structures and varying contours is effectively solved. When measuring segment difference and gap, contour fidelity and edge position accuracy can be achieved even in the case of multi-faceted reflection, and clear contour can be measured to ensure precision measurement.

4. The traditional laser displacement sensor can only be measured at the fixed installation position, and the moving average of a higher value needs to be added when the data is output, so it is difficult to solve the problems of low efficiency, poor stability and poor synchronization of soft trigger measurement in the traditional way; The spectral confocal sensor has great flexibility for mounting direction and moving direction, and can also support four-channel synchronous measurement.

5. The traditional laser displacement sensor will also cause problems such as deformation and optical axis offset of the fixture due to its own heating, which is prone to measurement errors; Hyberson spectral confocal sensor sensor head inside only the lens structure design, because there is no electronic components, no heat, so there is no deformation of the fixture mounting the probe, and for micron and submicron measurement, temperature drift is the key, the temperature drift can achieve ideal high-precision detection.