XARION Laser Acoustics is a provider of unique, laser-based acoustic sensors. The membrane-free optical microphone uses an IP-protected principle of operation: it detects sound based on its ability to change the speed of light. Since no mechanically movable or deformable parts are involved in this approach, the sensor comes with a linear frequency response free from mechanical resonances. The microphone shows an unprecedented frequency bandwidth exceeding state of the art solutions by a factor of ten.
Optical Microphone
Membrane-free Optical Microphone
XARION's Optical Microphone enables a novel real-time process control approach. As a complementary solution to visual inspection, the sensor monitors processes via air-coupled ultrasound, contact-free.
Features:
- Membrane-free optical microphone
- Low self-noise level
- Frequency range: 10 Hz–2 MHz (acoustics and ultrasound)
- Dynamic range: 30–180 dB (A) SPL
Typical applications to monitor in the field of laser material processing are:
- Laser Welding
- Laser Powder Bed Fusion (LPBF)
- Laser Material Deposition (LMD – powder or wire based)
- Extreme high-speed laser material deposition (EHLA)
- Laser Cladding
- Laser Texturing or Structuring
- Laser Micromachining
- Laser Glass Processing
More information about the technology and the advantages can be found in an article published in the Laser Technik Journal: Download
Further technical articles have been published about the following applications:
- Laser welding: Download
- Laser Metal Deposition (LMD) for detection of hot cracks during and after the build process: Download
XARION's Optical Microphone can also be used for any other process in your production. Especially if you run into any limits with thermal, camera-based, optical, mechanical or any other monitoring technology, the acoustic most likely can help. See here a simple but very impressive demonstration:
Data sheets: Eta100 Ultra (80–180 dB (A) SPL) | Eta250 Ultra (50–150 dB (A) SPL) | Eta450 Ultra (30-130 dB SPL @ 50 kHz-2 MHz)
Contact
Tobias Heider
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Tel: +49-(0)89-818 90 781
Mobile: +49-(0)151-227 95 965
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