Top 5 Differences Between LiDAR and Laser Range Finder

LiDAR and laser range finders are two revolutionary technologies that are used to capture  accurate data on physical environments. Both these technologies work by analysing  reflections and sending signals for active remote sensing. However, they have some  common differences in terms of operation, cost, range, application, and accuracy.  

This article can help you discover these differences so you can make a smart choice. 

Operation 

Laser scanning uses a process called the time of flight to calculate the distance between the  target and the scanner. During this process, pulses of laser light are sent toward a surface.  These laser beams return to the scanner, and the travelling time for these pulses is  recorded. The laser scanner rotates in a 360-degree arc and pulses continuously. This  process helps in capturing data from various angles.

Light Detection and Ranging, or LiDAR, is not dependent on natural light and is used in day  and night applications. This remote sensing technology is used for larger data collection as it  emits a thousand pulses per second. You can get high-quality LiDAR from a trusted LiDAR company for aerial, terrestrial, and mobile systems. 

Range and Coverage 

The laser range finder is usually considered a point-to-point measurement and covers a  limited area. Its range usually covers a few meters of measuring distance between specific  targets. Moreover, these are best suited for capturing detailed images in confined spaces  and smaller areas.  

LiDAR technology is best suited to cover larger areas and even create detailed 3D models  for several kilometres. A long-range LiDAR can have a range beyond 100 meters for  detecting objects for faster-moving vehicles. For professional applications like mapping, this  range may be extended to 200 meters or more. 

Cost-Effectiveness 

Laser range finders are comparatively less expensive due to their minimal application and  simple technology. You can get a variety of laser range finders for a couple of hundred  dollars with the latest features.  

LiDAR systems are considered an investment as they require specialised equipment and  softwares. The cost associated with data processing makes it expensive for smaller projects.  Due to their professional applications and complex technology, LiDAR can cost thousands of  dollars.  

Application 

A laser range finder is used for applications like hunting, surveying a small area,  construction, and golf. It is also used while travelling to measure the distance between  specific targets and points. Industries like sports and the military also use these devices to  observe objects and positions. 

LiDAR is a highly flexible and versatile technology that is used for urban construction,  architecture, vehicles and forestry. This technology can also be used for topographic  mapping, environmental management, and infrastructure planning.

Accuracy 

Laser range finders can be affected due to sunlight, rain, mist, or wind. This decreases their  accuracy and makes them more suitable for a controlled environment and indoor  applications. 

LiDAR is more accurate as it uses a 3D point cloud for data about a wide range of  environments. Moreover, it is not suited for minute and granular details of a close-range  application. 

Conclusion 

Both LiDAR and laser range finder can help you with specific applications, whether it’s  personal or professional. While selecting one of these technologies, focus on range, budget,  model and required level of detail. Keep the above differences in mind to understand which  of these is better suited for your requirements.