In the high-stakes environment of electrical grid maintenance, detecting a fault is only half the battle. The real challenge lies in Classification. Is that ultrasonic hiss a harmless corona or a critical internal insulation failure? The Hertzinno HA3T bridges this gap by merging a 144-channel MEMS microphone array with a high-definition 640 x 512 infrared sensor, turning invisible signals into actionable diagnostic intelligence.
The foundation of the HA3T is its optimized circular array. While many sensors struggle with background noise in active substations, the HA3T uses its 144 low-noise MEMS microphones to achieve a localization accuracy of ±1°.
The Technical Edge: At a distance of 1 meter, this translates to an error of ≤1cm. This precision is vital when inspecting dense switchgear cabinets where identifying the exact failing component is the difference between a quick fix and a total outage.
144-channel circular array for superior beamforming and noise rejection.
Our recent field analysis in Turkey highlights how different discharge types leave unique acoustic signatures. The HA3T doesn’t just "hear" these; it decodes them.
Corona vs. Surface Discharge: The field data shows that Corona discharge often requires high sampling rates (up to 192kHz) to be clearly identified. The HA3T’s advanced processor captures these high-frequency transients, displaying them via PRPD (Phase-Resolved Partial Discharge) patterns.
Beyond Detection: Instead of a simple alert, HA3T users see the "fingerprint" of the discharge, allowing them to distinguish between external surface tracking and more dangerous internal defects.
Left: The complex, high-frequency raw waveform of a Corona Discharge captured at 192kHz. For most, this is just "noise" that requires manual, expert-level analysis.
Right: The HA3T’s real-time PRPD (Phase-Resolved Partial Discharge) visualization. Our onboard AI instantly decodes the raw signal, identifying the distinct "butterfly" pattern of Corona. This evolution from data to diagnosis allows for immediate, confident decision-making in the field.
The "T" in HA3T represents its high-performance Thermal imaging. With a 640 x 512 resolution and a sensitivity of NETD ≤40mK, the camera catches thermal gradients that acoustic sensors might miss.
Synchronized Fusion: The HA3T overlays the acoustic heatmap directly onto the thermal image.
Predictive Power: If the HA3T detects a strong acoustic signal but no temperature rise, it indicates early-stage PD. If both sensors trigger, showing a thermal hotspot (12μm pixel pitch precision) and an acoustic peak, the asset is in imminent danger.
Dual-Layer Validation in Action: The HA3T interface simultaneously displays the acoustic heatmap (locating the discharge source) and precision thermal data. In this scenario, the integrated 640 x 512 thermal sensor captures a temperature peak of 41.50°C, providing immediate cross-verification of the asset's health.
Technical depth shouldn't mean operational complexity. Despite its laboratory-grade sensors, the HA3T is a field-rugged tool weighing less than 1.2kg.
Real-Time Reporting: Following the protocols seen in our technical reports, the HA3T supports one-click analysis. Engineers can generate a report on-device, including frequency spectrums and thermal data, and export it instantly via Wi-Fi or Bluetooth.
By integrating the raw power of 192kHz acoustic sampling with 640 x 512 thermal clarity, the HA3T moves beyond simple inspection. It provides a comprehensive diagnostic suite that fits in your hand, ensuring that every "secret language" spoken by your equipment is understood, classified, and acted upon.