Every piece of critical infrastructure has a voice — and it's usually the first thing to change before a failure happens. A hissing valve, a faint crackle around an insulator, a subtle hum from a bearing that shouldn't be there. The problem isn't that these warning signs don't exist. It's that they're invisible, buried in a frequency range no human ear can reliably catch, and easy to miss until the fault has already escalated into downtime, safety risk, or costly repairs.

AiHua Instruments is addressing this exact challenge with the launch of the YT2002 acoustic imaging camera — a 136-channel diagnostic tool built to give engineers a way to see faults they could previously only guess at.

Hearing What the Eye Can't See — The Real Cost of Hidden Faults

In power, energy, mining and metallurgy, and oil & gas facilities, some of the most dangerous and expensive failures don't announce themselves visually. Corona discharge on an insulator, a pinhole leak in a hydrogen valve, a bearing beginning to wear inside a compressor housing — none of these show up on a standard visual inspection until the damage is already underway.

Traditional inspection methods rely on manual listening, contact-based sensors, or scheduled shutdowns, all of which come with real limitations: they're slow, they expose personnel to hazardous areas, and they often catch problems only after they've become serious. What operations teams need is a way to detect these acoustic signatures remotely, continuously, and with enough precision to act before failure — not after.

That's the gap the YT2002 is designed to close.

Introducing the YT2002 — Turning Sound Into a Diagnostic Tool

The YT2002 gives your team a practical way to locate and visualize abnormal sound sources long before they become visible or measurable through conventional means. Instead of relying on guesswork or physical proximity, your engineers can identify exactly where a problem is originating — safely, remotely, and in real time.

Core Technology: Precision You Can See

At the heart of the YT2002 is a 136-channel microphone array paired with a reliable sound source localization algorithm. The camera captures the acoustic signals emitted by equipment and translates them into a sound pressure cloud map overlaid directly on the visual image — so whether the issue is corona discharge, a gas leak, or an unusual mechanical vibration, your team can see precisely where it's coming from, not just that something is wrong.

This isn't a one-time snapshot tool. The YT2002 supports real-time dynamic monitoring and video playback, so teams can track how an issue develops over time, document conditions for maintenance records, or review historical footage when investigating an incident. In short: sound becomes something your team can actually see, track, and act on.

Product Highlights: Built to Adapt to Your Environment

Every facility has different layouts, different hazards, and different monitoring needs — the YT2002 is designed with that reality in mind.

· 136-channel microphone array covering a frequency range of 1kHz–100kHz, with an effective sound pressure detection range of 28dB–120dB, giving your team the sensitivity to catch both faint early-stage signals and louder, more urgent ones.

· Intelligent PTZ (pan-tilt-zoom) mount with 360° horizontal rotation and -85°~60° vertical rotation, so a single unit can cover wide, complex areas without needing to be repositioned manually.

· Preset-point patrol inspection, allowing the camera to automatically cycle through key monitoring locations — supporting consistent, repeatable inspection routines with far less manual effort.

Four Industries, One Solution

The YT2002 was engineered around the real problems that power, energy, mining, and oil & gas teams face every day.

Power Industry: Catch Electrical Faults Before They Escalate

For power utilities, the YT2002 helps identify insulator corona discharge and transformer winding deformation, giving maintenance teams a non-contact way to locate developing electrical faults without needing to power down equipment or send personnel into hazardous proximity.

Energy Sector: Prevent Leaks Before They Become Incidents

For energy operators, the YT2002 detects steam pipeline leaks and hydrogen valve leakage, helping prevent deflagration risks and reduce the energy losses that come from undetected leaks left to run for weeks or months.

Mining & Metallurgy: Monitor Gas Safety From a Safe Distance

In mining and metallurgical operations, the YT2002 can scan for CO leak sources from a safe distance, supporting gas recovery safety programs without requiring personnel to enter potentially hazardous zones.

Oil & Gas: Reduce Explosion Risk Through Early Detection

For oil and gas facilities, the YT2002 monitors pipeline weld seam integrity and compressor bearing condition, giving teams an early warning system that helps reduce the risk of catastrophic failure.

Ready to See What Your Equipment Has Been Trying to Tell You?

Hidden faults don't stay hidden forever — they eventually show up as downtime, safety incidents, or expensive emergency repairs. The YT2002 gives your team the chance to catch them first.

Request a live demo of the YT2002 acoustic imaging camera, or contact AiHua Instruments today to discuss how acoustic imaging can fit into your facility's inspection and maintenance program.

Get in touch with our team to schedule your demonstration and see the technology in action: 
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