Eta250 Ultra

XARION's Eta250 Ultra membrane-free optical microphone allows coverage of the acoustic frequency bandwidth from 10 Hz to 1MHz with a single sensor head and is ideally suited for process monitoring. It was specially designed for applications with low self-noise requirements.

Features

• Membrane-free optical microphone
• Low self-noise level
• Frequency range: 10 Hz–1 MHz (acoustics and ultrasound)
• Dynamic range: 50–150 dB (A) SPL

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Downloads

• Eta250 Ultra Datasheet (26.56 kB)

Related Applications

• Ultrasound Measurements
• Inline process monitoring of hairpin welding
• Process Monitoring

Related Products

• Eta100 Ultra
• Eta450 Ultra
• Eta450 Ultra Array
• Eta600 Ultra

Open Access Publications

• Acoustic Process Control for Laser Material Processing
• Air-Coupled Ultrasonic Inspection of Fiber-Reinforced Plates Using an Optical Microphone
• Akustische Überwachung für die Lasermaterialbearbeitung (German)
• Inline process monitoring of hairpin welding
• Inline Process Monitoring of Hairpin Welding Using Optical and Acoustic Quality Metrics
• Online cracking detection by means of optical techniques in laser‐cladding process
• Ultrasound inspection of spot-welded joints