First, the measurement units of point laser, line laser and surface laser are different;
1, point laser
Point laser can only measure one point at a time.
2. Line laser
Line laser can measure the values of all points on a line at a time.
3. Surface laser
Surface laser can measure all points on the surface at once.
Secondly, point laser, line laser and surface laser have different functions;
1, point laser
There are two kinds of point laser, one is laser time difference, and the other is triangular reflection displacement sensor. The former emits a laser pulse, measures the time difference between the emission pulse and the return pulse, and converts it into the distance between the probe and the measured object. The latter uses triangle ring to measure the distance between the measured object and the probe, which has high precision and short measuring range.
2. Line laser
Similar to the principle of laser triangular reflection displacement sensor, line laser also adopts the principle of triangular reflection. The photosensitive plate is a matrix, so a laser line can be drawn and the displacement or distance of all points on the line can be measured.
3. Surface laser
If the moving line laser sensor records the measured data and displacement distance at the same time, three-dimensional data can be synthesized. In other words, it can measure the shape of a surface, which is surface laser.
Third, point laser, line laser and surface laser have different uses;
1, point laser
Dot-matrix laser therapeutic instrument is a beauty instrument for removing acne scars. It has the functions of super pulse and laser scanning output, can perform various fine laser operations quickly and accurately, and is suitable for human plastic surgery and facial cosmetic surgery.
2. Line laser
Linear laser is a convenient and practical positioning tool. It can be widely used for efficient clothing laser positioning, clothing button point light source positioning, cloth cutting machine-assisted marking, clothing hem positioning laser marking, sewing machine/cutting machine/button sewing machine/automatic manual cloth cutting machine-assisted marking positioning.
3. Surface laser
OptoNCDT2300-2DR laser displacement sensor is specially designed for measuring total reflection surface and glossy surface. This kind of laser displacement sensor can be used to measure the thickness of glass, the displacement of tempered glass or the assembly accuracy of tiny parts.
Extended data:
Laser is another great invention after nuclear energy, computer and semiconductor since the 20th century. It is called "the fastest knife", "the most accurate ruler" and "the brightest light".
The English name is light amplification by gradual degradation of radiation, which means "stimulated radiation amplification".
The English full name of laser has fully expressed the main process of making laser. The principle of laser was discovered by Einstein, a famous American physicist, as early as 19 16.
Laser is widely used, including laser marking, laser welding, laser cutting, optical fiber communication, laser ranging, laser radar, laser weapon, laser recording, laser correction, laser beauty, laser scanning, laser mosquito killer, LIF nondestructive testing technology and so on. Laser system can be divided into continuous wave laser and pulsed laser.
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