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FOTRIC H4Mini Acoustic Imaging Camera
Find Leaks in Seconds
112
MEMS Digital Microphone
770g
Weight
13 Megapixels
Digital Camera
2kHz~100kHz
Frequency Range
What is Acoustic Imaging?
Limitation of Human Perception
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.
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How does it work?
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Microphone Array: Simultaneously captures sound signals from multiple sources to enhance spatial accuracy.
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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.
Beyond What's Audible
The FOTRIC H4Mini acoustic imaging camera can detect not only audible sound , but also highfrequency ultrasonic signals that are beyond the range of human hearing.
This means it can easily capture things like:
Compressed Air System Leaks
As gas leaks emit high-frequency turbulence noise, the H4Mini can quickly detect even the smallest leaks in compressed air pipelines.
Vacuum System Leaks
The H4Mini 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 H4Mini detects abnormal highfrequency sounds caused by loose screws while equipment is running. It visualizes and pinpoints the issue in real time without requiring a shutdown.
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Tire air leaks
The H4Mini quickly visualizes and locates tire leak points without the need for soap spray—precise, efficient, and easy to use.
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Why FOTRIC H4Mini?
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High-density microphone array with 112 MEMS digital microphones
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Industrial digital camera: 13 MP, 66° × 52° field of view
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≥ 4 hours of single-battery runtime, removable; device rated IP54
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Multiple imaging modes: single-source, multisource, and holographic
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Multiple capture modes: Holographic image capture and video recording, and time-lapse capture.
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Professional features such as SPL measurement, Acoustic Image Delay (T-FFTD®) and Acoustic Image Focus
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On-device acoustic report generation.
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.
Specifications
Product Model
FOTRIC H4Mini Acoustic Imaging Camera
Size | 243mm*95mm*150mm |
Weight | 770g |
Acoustic Image Delay (T-FFTD®) | Captures instantaneous sound signals, can stay longer in real-time acoustic image |
Acoustic Image Focus | Masks surrounding areas, focuses only on the acoustic image of the focused area |
On-device Report Generation | The device is capable of directly generating acoustic image reports. |
Gray Scale Background | Display digital camera images in grayscale. |
Favorites | Click the favorite button to save the favorite status to acoustic images and
holographic acoustic videos, highlighted in the gallery preview screen, and later filter
by favorite status in the gallery. |
QR Code Scanning | Scan QR code or Bar code for text annotation and tag table. |
Battery Type | 3.6V, 5000mAh Rechargeable Lithium Battery, Field-Replaceable |
Microphone Channel | 112 MEMS Digital Microphones |
Acoustic Image Field of View (FOV) | 66° *52° |
Sound Sampling Rate | 200kHz |
Acoustic Refresh Rate | 25Hz |
Operating Distance | 0.3~100m |
Frequency Range | 2~100kHz |
Detection Mode | Leakage mode: display leakage level on device |
Display Screen | 3.5-inch, 640 x 480 pixels, IPS LCD touch display |
Image Modes | Single-source mode, multi-source mode, hologram mode |
Digital Camera | 13 Megapixels, Industrial-Grade Digital Camera |
Battery Operating Time | (Actual usage time depends on environmental and usage conditions) |
Supported Languages | English, French, German, Italian, Japanese, Korean, Portuguese,
Spanish, Thai, Traditional Chinese |
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 packaging box |
