Acoustic Wave (Acoustic Emission)
Damage Monitoring of Structural Parts

1 Introduction

1.1 Application Scenes:

Suitable for structural damage monitoring of various materials and equipment, such as bridges, wind turbines, cutting tools, storage tanks, pressure vessels, aerial work platforms, etc.

For example, cracks in metal and non-metallic structures such as bridges and dams, cracks in petrochemical tanks or pressure vessels, cracks in valves and pipelines, cracks in rotating equipment such as generators and lathes, etc.

1.2 Technical Principles:

The damage processes such as cracks, deformation and delamination in structural materials are often accompanied by sound waves (acoustic emission). The sound wave is acquired and analyzed, and the type, degree and location of damage can be determined by the acoustic wave (acoustic emission) system, and a health assessment can be made on the integrity of structural components.

2 Solution - RAEM1 remote Acoustic Wave (Acoustic Emission) monitoring system

System diagram

A variety of data output communication modes (Wi-Fi, 4G, Ethernet, RS485, etc.) can be configured according to user requirements to achieve regular scheduled detection, local long-term monitoring, and remote long-term monitoring and other application modes.

Note: The above systems have the functions in mobile app with Bluetooth communication for inspections and on-site debugging settings.

2.1 Features

  • All year round online monitoring
  • Automatically acquire and process AE data and provide evaluation results
  • IoT remote connection and transmission
  • Real-time and historical data display and analysis online or in local software
  • Real-time alarm notifications via SMS or emails

The online Cloud platform automatically displays the results

Automatically alarm information

3 Main Hardware and Software Introduction

RAEM1 remote Acoustic Wave (Acoustic Emission) monitoring system consists of:

RAEM1 Sensor
Acquisition & Processing Circuit
Communication modules
Platform Cloud / software / APPs
Client Terminals Smartphones / PC / Servers

Multiple RAEM1 can be composed of a multi-channel real-time monitoring system for a large structure.

3.1 Detailed System Options for SHM Applications

Sensor (with built-in preamplifier) GI40 for non-metallic object surfaces
GI150 for metal object surfaces
Acquisition & Processor Analog filters, digital filter, ADC etc.
Communication module Wired RS-485
Wireless 4G
Bluetooth (Mobile phone APP)
LORA (Networking)
Terminals Phone APP
mini program
Cloud platform Qingcheng IoT cloud platform
Alibaba Cloud
AWS (Amazon Web Services)
Software SWAE analysis Software
RAEM Configuration Software
Data Format AE Parameters arrival time, amplitude, counts, duration, energy, rise counts, rise time, RMS, ASL, etc
Waveform Sensor output waveform in time domain
Ratings Evaluations of the results to trigger different alarm levels

3.2 Software and Platform Data Display Examples

  • SWAE software views: data table, parameter correlation views, location view.

  • Qingcheng IoT Cloud Platform display waveform, various parameters, result rating levels, and device remote configurations.


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