Fotric H4mini
Acoustic Imaging Camera
112 MEMS Digital Michrophone
770g Weight
13 Megapixels Digital Camera
2kHz ~ 100kHz Frequency Range
What is Acoustic Imaging?
Limitation of Human Peception
The human ear can only perceive sounds in the range of 20 Hz to 20 kHz. However, hidden faults such as gas leaks, bearing wear, and electrical discharges often emit much higher frequency ultrasound (>20 kHz) — sounds that are imperceptible to the human ear and beyond the capabilities of traditional stethoscopes or microphones.
How does it work?
- Microphone Array: Simultaneously captures sound signals from multiple sources to enhance spatial accuracy.
- Beamforming Algorithm: Focuses on sound sources from specific directions, filtering out environmental noise
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Acoustic Image Overlay: Displays sound source locations as a heatmap over the image.
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Low-Latency Rendering Engine: Enables near-instant response, ideal for continuous inspection scenarios.
H4mini
Beyond What’s Audible
Compressed Air System Leaks
As gas leaks emit high-frequency turbulence noise, the TD2 can quickly detect even the smallest leaks in compressed air pipelines.
Vacuum System Leaks
The TD2 precisely captures subtle leak sounds in vacuum systems that human ears cannot hear, enabling fast leak localization without contact or damage to equipment.
Loose Joint Vibration During Operation
The TD2 detects abnormal high-frequency sounds caused by loose screws while equipment is running. It visualizes and pinpoints the issue in real time without requiring a shutdown, helping maintenance teams address risks and ensure operational stability.
Tire air leaks
The TD2 quickly visualizes and locates tire leak points without the need for soap spray—precise, efficient, and easy to use.
Why Fotric H4mini?
- High-density microphone array with 64 MEMS digital microphones
- Industrial digital camera: 13 MP, 66° × 52° field of view
- ≥ 4 hours of single-battery runtime, removable; device rated IP54
- Multiple imaging modes single-source, multi-source, and holographic
- Multiple capture modes: Holographic image capture and video recording, and time-lapse capture.
- Professional features such as SPL measurement, Acoustic Image Delay (T-FFTD®) and Acoustic Image Focus
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On-device acoustic report generation.
Specifications
Standard Configuration: Acoustic imaging camera main unit, rechargeable lithium battery * 1, power adapter, USB Type-C to USB cable, 32G TF card, wrist strap, document bag (packing list, quick start guide), outer
Unique Features
Source Mode Switching
The H4Mini Acoustic Imaging Camera supports multiple image modes, including single-source, multi-source, and holographic views, allowing users to adapt to varying noise complexities and detection targets on-site.
Flexible Capture Modes
The H4Mini camera supports holographic image capture, holographic video recording, and time-lapse capture, enabling inspectors to make comprehensive documentation on-site.
Precise SPL Measurement
Combining holographic imaging and decibel data measurement, the camera is capable of industrial-level sound source tracking and signal diagnosis, enhancing acoustic inspection efficiency and user safety.
