Non-Contact Laser Beam Monitoring System

  Enquire / contact me

Measurement of laser characteristics in additive manufacturing

Test & Measurement

Non-Contact Laser Beam Monitoring System
Non-Contact Laser Beam Monitoring System

Ophir distributes the Ophir BeamWatch AM, the industry's first non-contact laser beam monitoring system for additive manufacturing. BeamWatch is a lightweight, compact system designed for real-time measurement of focal shift during laser startup of powder bed fusion manufacturing processes. It measures key beam size, position, and quality parameters, including focus spot size and beam caustic. These measurements allow users to more easily determine when the beam is aligned and in focus, providing more consistent metallurgy. Measurements can be displayed as tabular, 2D, and 3D views, providing a quick and realistic display of laser characteristics. 

Understanding the beam

"Additive manufacturing processes, such as Selective Laser Sintering (SLS) and Selective Laser Melting (SLM), require symmetrical, uniform, and stable power density distribution of the laser beam," said Gary Wagner, General Manager, Ophir Photonics (U.S.). "This requires a beam spot size and intensity that is maintained within a finite acceptance window when delivered to the material that is to be transformed. Users need to understand where the system laser beam is focusing, if the focus is stable, and, if not, where focus occurs after the system has thermally stabilized in order to avoid structural weakness, captured stress, and voids in the AM build. BeamWatch AM solves these problems by providing real-time measurement of the beam at the working plane location." 

Measuring rates up to 14 Hz

BeamWatch AM is the next generation of the company's laser beam monitoring systems, all of which use Rayleigh scatter to image the beam without contacting the laser. This removes the potential for damage to the laser and speeds the measurement process by up to two minutes. BeamWatch AM can measure laser powers to 1000 watts in-situ at rates up to 14Hz and can handle up to 120,000 joules without cooling. System measurements include laser power, waist width, waist location, focal plane location, spot size at focus, spot size at any point along the 10mm measurement space, ellipticity, Rayleigh length, M2, K, BPP, divergence, and centroid beam tilt. Results can be charted and exported to .csv files for importing into Excel or other analysis software. 
 

Posted on February 5, 2018 - (6711 views)
Ophir Spiricon Europe GmbH
Guerickeweg 7
64291 Darmstadt - Germany
+49-00800 67447678
View full company profile
Location
Related articles
Labfacility L60+ Thermocouple & Fine Wire Welder
Designing Optical Systems for Space Projects
5 Things You Need to Know About Surface Metrology
Radar Sensors R&D Gets on a Flexible Track
Ready to Race
Ultrasonic Flowmeters for Fuel Gas
Verigo Model PB3 Reusable Temperature Data Logger
Differential Pressure Transmitter PS17
Ultrasonic Flowmeter for Laboratory
Mass Flow Controller FMA-2600A Series
Ultrasonic Flowmeter TRX
Handheld Optical Gas Imaging Camera GFx320
Level Switches RFS-12 and RFS-9
Electric Charge Reduction of Compressor Air
Digital Storage Oscilloscope TBS 2074
Ultrasonic Flowmeter for Air
Digital Multimeter, Gas Soldering Iron and Carrying Case
Sensing Innovation in Process and Control
Ultrasonic Flowmeter for Air