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Characteristics of Spectral Confocal Sensor Measurements

Characteristics of Spectral Confocal Sensor Measurements

Characteristics of Spectral Confocal Sensor Measurements

  • Categories:News
  • Time of issue:2022-06-14 14:08
  • Views:

(Summary description)Spectral confocal sensors do not require reinstallation or adjustment for each material, only one sensor can be used for test pieces with multiple materials, and stable measurements can be obtained with one mounting method, even at the intersection of different materials Measurement.

Characteristics of Spectral Confocal Sensor Measurements

(Summary description)Spectral confocal sensors do not require reinstallation or adjustment for each material, only one sensor can be used for test pieces with multiple materials, and stable measurements can be obtained with one mounting method, even at the intersection of different materials Measurement.

  • Categories:News
  • Time of issue:2022-06-14 14:08
  • Views:
Information

The spectral confocal sensor does not require re-installation or adjustment for each material, and only one can be used for test pieces with multiple materials A sensor that can measure stably with one mounting method, even at the intersection of different materials. Spectral confocal displacement sensors have extremely high scanning accuracy and measure roughness, which laser displacement sensors cannot measure at all.

Characteristics of Spectral Confocal Sensor Measurements

1. Comparison of traditional triangulation methods

Triangulation uses the change in the position of the light spot of the photosensitive element (CCD/CMOS) to measure the distance change of the object being measured. In the photoreceptor waveform, the error can be reduced by calculating characteristic quantities such as the peak value or the center of gravity, but in principle, if the material is different or the slope of the object changes, the photoreceptor waveform will have positional deviation or waveform confusion, resulting in measurement errors.

2. Measuring point potential problem

When using an existing triangulation, the measurement location or spot size will vary depending on the height. The coaxial confocal principle of the confocal displacement sensor enables high-precision measurement even if the measurement object is tilted or warped, and the measurement point remains unchanged.

3. Stable measurement of all material surfaces

4. Over-angle characteristics, the maximum inclination angle can be measured at 87 degrees.

Traditional triangulation coaxial confocal distance measurement method, if the inclination angle of the measurement object is too large, the luminous aberration image will appear due to the coaxial confocal principle No difference interference problem.

Even if there is a measured value, it may deviate significantly from the true value. Even if the measured object has too much slope, there is no image measurement accuracy.

5. Mirrors, transparent and translucent surfaces may also have super angular properties

The traditional triangulation method has high requirements on the installation angle of the sensor when measuring the mirror body. In applications where multiple heads are used to measure the thickness of glass or flexible samples, each sensor must be installed with high-precision angular adjustment. Using a confocal displacement sensor, high-accuracy measurements are possible without strict angle adjustment. The bouncing of the object being measured in motion does not have much effect on the measurement.

6. Displacement and thickness can be measured and output at the same time

7. The flatness and thickness of transparent parts can be measured at the same time.

Mirrors, transparent and translucent surfaces may also have super angular characteristics - traditional triangulation methods, when measuring mirrors, the installation angle of the sensor High expectations. In applications where multiple heads are used to measure the thickness of glass or flexible samples, each sensor must be installed with high-precision angular adjustment. Using a confocal displacement sensor, high-accuracy measurements are possible without strict angle adjustment. The bouncing of the object being measured in motion does not have much effect on the measurement.

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