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  The American Surveyor     

Acuity Technologies Introduces the AL-500 Lidar System Print E-mail
Written by Acuity Technologies   
Wednesday, 11 January 2017

December 30, 2016 Menlo Park CA Today Acuity Technologies Inc. introduces its AL-500 Lidar, a compact omnidirectional scanning range and image acquisition system. It features measurement up to 150 meters in full sunlight with an optional 300 meter capability, and sample rates up to 800,000 points per second.

The AL-500 is available in configurations for terrestrial scan acquisition, for real-time industrial and continuous process control in fixed installations, and for mobile land and airborne applications. An available battery pack attaches to the bottom of the lidar and provides up to 8 hours of field operation. IP67 sealing with dry nitrogen fill is standard, and an optional air cooled version can be used in ambient temperatures above 85 C. A two axis inclinometer facilitates easy setup and multi-scan registration. The AL-500 is 83 mm by 312 mm by 133 mm, weighs 4.3 Kg and is a Class I laser product.

Point capture density is fully configurable up to 6667 by 40000 equally spaced points in a field of view of 120 by 360 degrees. Scanning is a combination of fast vertical scans at up to 360 lines per second and a variable azimuth sweep rate of up to 10 revolutions per second. High speed scanning can capture 10 million points in 25 seconds, and the high resolution mode has 1mm measurement resolution.

A unique aspect of the AL-500 is the acquisition of monochrome images simultaneously with range data. Since the scene brightness is captured point by point along with distance, no registration of the image is required and no mismatch occurs in dynamic scenes or mobile applications.

The scanner is controlled with Acuity's PointWorks interface for scan collection and visualization. Interactive configuration and in-capture scan display let the user define the field of view, point density, and other scan parameters on a Windows notepad or computer connected via a 100Mb ethernet link. Default scan configurations demonstrate the capabilities of the AL-500 and allow users to start collecting useful data immediately. Point clouds may exported in several standard formats.

PointWorks is built on the Acuity Scanning Application Programming Interface, and source code for the API is included with the AL-500 to speed development of scanning application software. The API can be used to control all aspects of AL-500 operation, and includes features such as buffered sequential scanning, real-time calibration, and variable short-range airborne particulate rejection. Support for application software development is also available from Acuity.

About Acuity Technologies
Acuity Technologies has been developing laser measurement and scanning systems for industrial and defense applications since 1993. With markets for lidar in autonomous navigation and commercial scene and structure capture rapidly expanding, Acuity is now focused on producing simple yet flexible 3D data acquisition systems for field use as well as industrial processes and autonomous vehicles. For more info: www.acuitylidar.com

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