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Phsonic Optical Microphone
Light-Sound Synergy, Micro-Motion Mastery
New Generation Ultrasonic Non-Contact Inspection Solution
Phsonic™ Optical Microphone (High-Frequency Version) features high sensitivity, wide bandwidth, and a compact design. It requires no acoustic matching medium and does not rely on inertial components for sensing. The measured acoustic pressure signals are free from tail oscillations. Additionally, its all-fiber construction is immune to external electromagnetic interference, providing excellent environmental adaptability, which makes it ideal for applications in non-contact nondestructive testing and high-frequency acoustic wave detection.
Features
- Electromagnetic Interference Resistance
- No Need For An Acoustic Matching Layer
- Long-Distance Transmission
- High Resolution (3.5μPa@500kHz(0dB))
- High Sensitivity (200mV/Pa@1kHz)
- Wide Bandwidth (50kHz~5MHz )
- Large Dynamic Range (95dB)
- Real-time Synchronization
- Fully Self-Developed Internal Components
Applications
- Nondestructive testing
- Medical diagnosis
- Industrial monitoring (Gas concentration detection etc.
Principle
Phsonic™ Optical Microphone is an ultrasonic sensor based on laser interferometry technology, achieving high-precision acoustic wave detection by measuring slight changes in air refractive index.
1）Sensor Probe
Based on laser interferometry detection technology, it analyzes the changes in air refractive index caused by sound pressure in the F-P cavity, enabling high-precision acoustic wave measurement.
2）Demodulator
The demodulator integrates an optical interferometer and works in conjunction with the sensor probe to accurately analyze the cavity length changes in the sensor probe. By combining optical fiber multiplexing technology, it enables simultaneous demodulation of multiple sensitive elements.
Product specifications
NDT Applications
· Material Defect Inspection · New Energy Batteries
· Laser Welding · Aerospace
· Additive Manufacturing · Electronic Circuits
- Wide Material Compatibility
Suitable for various materials and structures, especially for inspecting complex structures and composite materials.
- Fast Inspection Speed
No need for precise clamping or positioning, easy to operate, and reduces time cost.
- Enhanced Inspection Quality
High resolution, high sensitivity, and superior detection quality.
Medical Diagnosis Applications
Application Scenarios
· Cardiovascular System
· Gastrointestinal System
Photoacoustic Imaging (PAI) combines the high contrast of optical imaging with the high resolution of ultrasound imaging for disease diagnosis and tissue assessment.
The Phsonic™ Optical Microphone, with its non-contact operation, high sensitivity, and strong penetration, serves as a key sensor in PAI, enhancing imaging resolution and diagnostic accuracy.
Industrial Inspection Applications
Application Scenarios
· Partial Discharge Detection
· Atmospheric Detection
Optizone Technology (Shenzhen) Limited
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