物理声学的传感器专为 “监听” 高频信号而设计。就像高度敏感的 “耳朵” 一样，声发射传感器将材料的 “声音” 解释为可用的 AE 波形。此外，AE 传感器有助于了解材料在自然环境中的行为。
AE 传感器是决定如何应用补救解决方案和维修来解决结构问题的重要环节。AE 传感器用于测试储罐、热交换器、管道、反应堆、空中升降设备以及天然气、石化设备和核电厂。Physical Acoustics 的传感器可以采用特定功能构建，以满足项目或应用的特定需求。
| Acoustic Emission Sensors | |||
|---|---|---|---|
| Sensor / Description | Operating Frequency Range | Applications | Catalogue |
| Airborne AM21 – 23 kHz |
22-25 KHz | Airbone leak detection and monitor other types of faults and failure conditions that emit airborne ultrasonic sound at or very near the sensor’s resonant frequency. |
Model AM2I |
| Differential D9241A - 10-100 KHZ |
20-60 kHz | Monitor big power transformers. | Model D9241A |
| Flat Frequency Reponse F15 – 100 – 400 kHz |
100-450 kHz | Structural health monitoring of large structures like storage tanks, pipelines, etc. |
Model F15A |
| High Temperature D9215 – 50 – 650 kHz |
50-650 KHz | High temperature, radiation environments (Nuclear Power Plants). Monitoring high temperature equipment in power plants, aerospace engine monitoring, pipelines, etc. |
Model D9215 |
| Integral Preamp AM41 – 40 kHz |
39 -42 kHz | Airborne leak detection. It may also be used to monitor other types of faults and failure conditions that emit airborne ultrasonic sound at or very near the sensor’s resonant frequency. |
Model AM4I |
| Intrinsically Safe ISR3CA-HT-30 kHz |
10-100kHz | Leak detection or structural health monitoring in harsh environments requiring intrinsic safety. Monitoring of pipelines, pressure vessels and storage tanks in petroleum refineries, chemical plants and offshore platforms. |
Model ISR3CA-HT |
| Low Frequency PK31 – 30kHz |
15-40 kHz | To be used with the Pocket AE, a small handheld AE system, or with the Sensor Highway II, an outdoor rated, on-line monitoring system. |
Model PK3I |
| Medium Frequency PK15I |
100-450 kHz | To be used with the Pocket AE, a small handheld AE system, or with the Sensor Highway II, an outdoor rated, on-line monitoring system. |
Model PK15I |
| Acoustic Emission Sensors | |||
|---|---|---|---|
| Sensor / Description | Operating Frequency Range | Applications | Catalogue |
| Miniature PICO | 200 – 750 kHz | Any application with a noisy environment and requiring a small size, midband frequency response. Their high sensitivity and bandwidth makes them ideal for structural health monitoring of critical structures like aircrafts, storage tanks etc. Typical applications include monitoring for fatigue and corrosion cracking in metals, delaminations and fiber breakage in composites. It can easily be mounted using epoxy and can be mounted in small and tight spaces. |
Model PICO |
| Underground R15-UG |
50-200 kHz | Structural health monitoring of underground structures like pipelines, oil tanks, tunnels etc. They can also be used for monitoring geological structures and seismic activity. |
Model R15-UG |
| Underwater R15I |
50-400 kHz | Structural health monitoring of submerged structures like offshore oil and gas platforms, ships etc. They can be used inside any liquid filled platforms like pipelines, chemical tanks or any other submerged structures. |
Model R15I-UC |
| Wideband F301-AST-150-750 kHz |
150-700 kHz | Flat response of these sensors help eliminate the sharp rise and fall in the sensitivity with frequency commonly seen in resonant sensors, providing additional information for engineers to analyze. Are well suited for research applications where a high fidelity AE response is required. |
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