Angle sensors, as the name suggests, are used to detect angles. It has a hole in its body that fits into a Lego shaft. When attached to the RCX, it counts every 1/16 turn of the shaft. When rotated in one direction, the count increases, and when the direction of rotation changes, the count decreases. The count is related to the initial position of the Angle sensor, when initializing it, its count value is set to 0, and you can programmatically reset it if necessary. When wheels are attached to the robot (or the robot is moved by gearing), the distance the robot has traveled can be inferred from the Angle of rotation and the number of wheel circles.

The application of spectral confocal sensors is to measure the thickness of multilayer transparent materials. Unlike other measurement methods, spectral confocal sensors only need a probe to complete the measurement when measuring such objects.

The surface roughness of the spectral confocal displacement sensor is a concept used to express the micro-geometric error of the surface of the part, and the micro-geometric error is expressed in microns.

With the rapid development of industry, the demand for precision measurement technology is getting higher and higher, displacement measurement technology as the basis of geometric precision measurement, not only requires ultra-high measurement accuracy, but also needs a wide range of adaptability to the environment and materials, and gradually tends to real-time, non-destructive testing. Spectral confocal displacement sensor is a new type of sensor defined in the Chinese automated measurement market, which can solve many high-precision measurement applications.

With the rapid development of computer technology, confocal microscopy has become a research hotspot and has been developed rapidly. Spectral confocal measurement technology is widely used in industrial measurement because of its unique advantages of high measurement accuracy, fast measurement speed and non-contact measurement.

The spectral confocal sensor does not need to be re-installed or adjusted for each material. For the measured object with a variety of materials, only one sensor can be used, one installation method can be stable measurement, and the junction of different materials can also be stable measurement. The spectral confocal displacement sensor has very high scanning accuracy and can measure roughness in accordance with ISO2587 international standard. Laser displacement sensor can not achieve roughness measurement, and Japanese and domestic spectral confocal sensors can not achieve roughness measurement because the spot is too large and the resolution is not enough.