Applications and Principles of 3D Galvo Lazer

3D galvo lazer technology, also known as reality capture technology, has been a significant breakthrough in the field of surveying since its inception in the mid-1990s, following GPS technology. This technology has revolutionized the traditional single-point measurement mode, standing out with its high efficiency and precision. Through high-speed galvo lazer, it can quickly capture 3D point cloud data of an object's surface and subsequently construct high-precision, high-resolution digital terrain models.

3D Galvo Lazer Technology Analysis

3D galvo lazer technology is based on lazer ranging principles. By capturing the 3D coordinates, reflectivity, and texture information of dense points on the surface of the measured object, it can quickly reconstruct accurate 3D models and various types of data products. Compared to traditional single-point measurement methods, this technology has achieved a revolutionary leap from point to surface measurement. Currently, it has made significant progress and applications in heritage preservation, architectural planning, civil engineering, and other fields. Moreover, the 3D galvo lazer systems are classified into airborne, vehicle-mounted, ground-based, and handheld types, offering flexible solutions for different applications.

Basic Functions of 3D Galvo Lazer

One of the core functions of 3D galvo lazer is 3D measurement. Through high-speed galvo lazer and data processing, these instruments can accurately capture 3D point cloud data of an object's surface, laying a solid foundation for subsequent surface reconstruction, editing, and modification.

In traditional measurement concepts, the resulting data ultimately present as 2D results, such as CAD drawings. Although total stations and GPS occupy important positions in the measurement field, the data they measure is also primarily in 2D form. However, with the gradual advancement of digitalization, 3D technology is gradually replacing 2D, leveraging its intuitive advantages. Each measurement by a 3D galvo lazer provides detailed information of points X, Y, and Z, as well as rich data like color information and object reflectivity, laying a strong foundation for the true reproduction of objects in a computer.

In addition, 3D galvo lazer also possesses a rapid scanning function. In conventional measurement methods, measuring each point often takes 2-5 seconds or even a few minutes. However, the advent of 3D galvo lazer has significantly increased measurement speed. Initially, the measurement speed of 1000 points per second was already remarkable. Nowadays, pulse scanners like the scanstation2 have a maximum speed of 50,000 points per second, while phase-based scanners like the Surphaser have a speed of up to 1.2 million points per second. This speed ensures 3D galvo lazer can detail objects, making previously unmeasured complex areas such as ancient culture inspections, factory pipelines, tunnels, and terrains now measurable.

Application of 3D Galvo Lazer

As representatives of high-tech products, 3D galvo lazer has played important roles in various fields. Whether in heritage preservation, urban building measurement, terrain surveying, mining, deformation monitoring, or large structure measurement, they have demonstrated remarkable performance. The scanning results are presented as point clouds, and using these spatial point cloud data, complex 3D visual models can be quickly constructed, being both efficient and labor-saving, far surpassing current 3D modeling software capabilities.

3D galvo lazer has wide applications, encompassing heritage preservation, urban building measurement, terrain surveying, and more. Additionally, in mining, deformation monitoring, and large structure measurement, they also demonstrate excellent performance. By scanning and obtaining spatial point cloud data, complex 3D visual models can be efficiently constructed, which surpasses existing 3D modeling software capabilities.

3D galvo lazer technology has broad and profound application fields. In recent years, with continuous technology advancement and commercialization of equipment, 3D galvo lazer has become valuable assistants in multiple domains. Their uniqueness lies in the ability to quickly scan target objects and obtain high-precision point cloud data without reflective prisms, thereby achieving efficient 3D modeling and virtual reproduction of the real world. Consequently, this technology has become a research hotspot, showing broad application prospects in many fields.

In the field of surveying and mapping engineering, 3D galvo lazer plays a crucial role. Whether for foundational terrain measurement of dams and power stations, detailed surveying of roads, railways, waterways, and bridges, they can easily cope. Additionally, tunnel inspection, deformation monitoring, and mining surveys and volume calculations also rely on their support.

Structural measurement also benefits from 3D galvo lazer. Whether it's bridge reconstruction and expansion projects, structural inspection and monitoring, or precise measurement of internal equipment in large industrial enterprises, they provide excellent support. Additionally, in the accurate measurement and preservation of buildings and monuments, they demonstrate exceptional performance, providing strong technical support for heritage preservation and site surveying.

In emergency services, 3D galvo lazer also plays an indispensable role. They can be used for counter-terrorism, land reconnaissance, attack surveying, and also provide strong support for disaster estimation, traffic accident handling, and crime scene investigation. Moreover, their application in the mining industry is extensive, capable of efficient 3D scanning in hazardous areas like open mines and underground metal mines.

In summary, the application fields of 3D galvo lazer technology are wide and varied. From surveying engineering to emergency services, to the entertainment industry and mining, they all depend on its technical support. Its efficiency and accuracy have brought unprecedented convenience and possibilities to various fields.