Eta600 Ultra

The membrane-free Eta600 Ultra Optical Microphone represents the latest development in XARION's sensor technology. With a frequency bandwidth ranging from 50 kHz to 4 MHz for air-coupled ultrasonic measurements and the highest sensitivity within the Eta product line, this sensor proves to be optimal for use in ultrasonic testing applications that require high resolution. In conjunction with XARION's technology for laser-based ultrasound excitation, the sensor is deployed in applications such as non-destructive testing (NDT) of semiconductor components and composite materials, used in the aerospace industry.

Features

• Membrane-free Optical microphone
• Frequency range 50 kHz–4 MHz
• Self-noise: 3.5 µPa (BW: 1 Hz, measured @ 500 kHz)
• Max. sound pressure for THD < 3%: 20 Pa
• Dynamic range: 95 dB
 

• 
• 
• 
• 
• 
• 

Downloads

• Eta600 Ultra Datasheet (67.52 kB)

Related Applications

• Semiconductor Testing
• Ultrasonic Inspection of Composite Materials

Related Products

• Eta100 Ultra
• Eta250 Ultra
• Eta450 Ultra
• Eta450 Ultra Array

Open Access Publications

• Air-Coupled Ultrasonic Inspection of Fiber-Reinforced Plates Using an Optical Microphone
• Impact damage assessment in biocomposites by micro-CT and innovative air-coupled detection of laser-generated ultrasound
• Material characterization via contact-free detection of surface waves using an optical microphone
• Ultrasound inspection of spot-welded joints
• Acoustic Process Control for Laser Material Processing
• 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