This technology offer is a real-time "sound camera" that enables the user to pinpoint and visualize noise sources for fault detection. Highly sensitive MEMS microphone arrays detect and locate highly transient noise sources, using field programmable gate array (FPGA)-based high speed beamforming technology. The device also performs superbly on stationary noise sources. An integrated camera capable of capturing 25 images per second captures the scene, and overlays an indication of the sound source in the captured images. In this way, the user is able to locate and visualize the sound source easily. The major application of this device is for the detection of Buzz, Squeak, and Rattle (BSR) noise sources, as well as the visualization of Noise, Vibration, and Harshness (NVH) sources.
2. Portable Mini Sound Camera
Leak Arc Detection and Monitoring Solution
Visualizing Ultrasound: As highly pressurized gas passes through a small crack in a pipe, the vibration generates ultrasonic waves. The MEMS microphone arrays of this device can analyze the intensity and sequence of the received signals to locate the sound source.
Optimized Detection Range: Through numerous tests, the frequency detection range has been optimized. For example, the sound from gas leaks is maximized while surrounding noises are at a minimum. As a result, accurate location of gas leaks in an outdoor environment can also be achieved.
This portable sound camera has applications in: BSR Noise Detection/Noise Leakage Detection/Noise Evaluation and Quality Improvement. Implementing this technology solution in factories and industrial plants can enable the end user to detect abnormal noises easily, and at an early stage of potential equipment failure. The early detection of these abnormal noises can help to prevent downstream catastrophic failures.