Acoustic Imager | Smart Partial Discharge & Gas Leak Detection with 138 MEMS Microphones MPB568

Product Description

The MPB568 Acoustic Imager is a smart detection device designed for partial discharge monitoring and gas leak detection in high-voltage systems. Equipped with 138 low-noise MEMS microphones, it captures an extended acoustic spectrum from 2kHz to 100kHz, enabling precise sound source localization even from long distances.

The MPB568 can intelligently identify corona, floating, and surface discharges, making hidden flaws visible and easy to trace. With a detection range of 0.3 to 150 meters, a 13MP digital camera, and advanced acoustic imaging modes (single, multi, hologram), it delivers unmatched reliability for predictive maintenance and inspection.

Key Features

• 138-channel MEMS microphone array for accurate acoustic imaging

• Adjustable bandwidth from 2kHz to 100kHz for extended spectrum capture

• Ultra-long detection distance from 0.3m to 150m

• Intelligent recognition of corona, floating, and surface discharges

• High sensitivity: detects leak rates as low as 0.15m/s (0.5MPa, 0.5m)

• Acoustic imaging frame rate: 25 FPS for real-time monitoring

• 13MP digital camera with 60° × 40° FOV

• 4.3" touch display for easy operation

• Multiple display modes: Single, Multi, Hologram

• Built-in noise filtering and auto enhancement functions

• Photo, video, and audio recording with annotation support

• Wi-Fi & Bluetooth connectivity for wireless data transfer

• Large 128GB SD card storage for reports, images, and videos

• Rugged design, operational in temperatures from -20℃ to +50℃

Technical Specifications

Microphones & Detection

• Type: High sensitivity digital MEMS microphones

• Channels: 138

• Array Size: Approx. 150mm

• Sensitivity: -26 dBFS @1kHz

• SNR: 64 dB @1kHz

• Bandwidth: 2kHz – 100kHz

• Sound Sampling Rate: 200kHz

• Frame Rate: 25 FPS

• Detection Distance: 0.3 – 150m

• Leak Rate Sensitivity: >0.15m/s (0.5MPa, 0.5m), >0.2m/s (0.5MPa, 1m)

Camera & Display

• Camera Resolution: 13MP

• Field of View (FOV): 60° (H) × 40° (V)

• Display: 4.3" touch screen

• Display Modes: Single, Multi, Hologram

Recording & Storage

• Photo Format: JPG

• Video Format: MP4

• Audio Format: WAV

• Storage: 128GB SD card

• Annotation: Text & voice support

Connectivity

• Wireless: Wi-Fi & Bluetooth

• USB Port: Type-C

• Interface: Data transmission & automatic report generation

General Characteristics

• Functions: Partial discharge detection, gas leak detection

• Detection Types: Corona, floating, surface discharges

• Operating Temperature: -20℃ to +50℃

• Sound Pressure Range: <20dB to >120dB

• Languages Supported: Chinese, English

Applications

• High-voltage electrical system inspection

• Power plant and substation monitoring

• Predictive maintenance in industrial facilities

• Gas leak detection and localization

• Research and laboratory testing

Downloads

Data Sheet Link