Blogs

CRYSOUND acoustic imaging camera detecting floating partial discharge in MV switchgear

Floating Partial Discharge in MV Switchgear: Detection and Repair Case Study

Partial discharge (PD) signals were detected in the medium-voltage switchgear of a plant, raising concerns about the safety and stability of the electrical system. To ensure safe inspection, the technical team isolated the affected area by cutting power. Corrective measures included applying high voltage from an external source to the equipment and using advanced detection […]
Electric vehicle in anechoic chamber with acoustic beamforming heatmap overlay

EV NVH Testing Challenges: Why Acoustic Cameras Are Becoming Essential

Traditional NVH tools still matter, but they don't cover every EV scenario-acoustic cameras fill the gap with real-time noise visualization and wide-band diagnostics. The Quiet EV Paradox: Why Electric Cars Are Actually "Noisier" It sounds like a paradox - electric vehicles have no roaring engine, yet engineers are finding it harder than ever to achieve […]

Unexpected Issues During Pilot Production

During pilot production and production line ramp-up, many issues do not appear in the way teams initially expect. Sometimes it starts with a small fluctuation at a test station, or a comment from a line engineer saying, "This result looks a bit unusual."However, when takt time, yield targets, and delivery milestones are all under pressure, […]

Anomalous Sound Testing Explained: Principle,Method,and Configuration

In our previous blog post, Anomalous Sound Detection: From Human Ears to AI"we discussed the key pain points of manual listening, introduced CRYSOUND's AI-based anomalous sound testing solution, outlined the training approach at a high level, and showed how the system can be deployed on a TWS production line. In this post, we take the […]

From A2DP Fundamentals to Bluetooth Audio Testing with CRY578

A2DP (Advanced Audio Distribution Profile) is the core Classic Bluetooth profile for high-quality audio streaming. This article provides an overview of how A2DP transmits music, explains its position in the Bluetooth protocol stack, and introduces a practical A2DP testing workflow using the CRY578 Bluetooth LE Audio Interface. How Does A2DP Transmit Music? A2DP is the […]

Detect Valve Leakage with Contact Ultrasound

Valves are the "core control components" of pipeline systems. They perform four key functions-opening/closing, regulating, isolating, and directing-enabling precise control of fluid flow. Once sealing integrity fails, minor cases can lead to process upsets and energy losses, while severe cases may result in fires or explosions, toxic exposure, or environmental pollution. We built a valve […]

Visualized Vacuum Leak Testing for Trains

Negative-pressure airtightness is critical for high-speed train car bodies, and even minor leaks can lead to rework or delivery risks. This article presents a case from Changchun where CRYSOUND's CRY8124 Acoustic Imaging Camera was used to quickly, intuitively, and verifiably pinpoint leaks on a carbon-fiber train car body shell, showcasing the CRY8124's application in vacuum […]

Wind Turbine Blade Vacuum Bag Integrity Test in 10 Minutes

In this article, we use a wind turbine blade factory as an example to show how CRY8124 Acoustic Imaging Camera can help complete a vacuum (negative-pressure) integrity test for a single blade in about 10 minutes. What Is a Wind Turbine Blade? Wind turbine blades are the key rotor components that convert wind energy into […]

Leveraging Acoustic Imaging for Effective Partial Discharge Detection

Within the intricate tapestry of electrical systems, where the paramount significance of ensuring power distribution safety and reliability cannot be overstated, the swift detection and mitigation of partial discharge (PD) emerge as critical elements in averting equipment degradation and voltage instabilities. Acknowledging this pressing need, our discerning clients frequently seek insights into the practical applications […]
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