RAEM1-6 USER’S MANUAL Operation Guide
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Version: V1.1.2 2023.04.21 QingCheng AE Institute www.aendt.com E-mail: sales2@ae-ndt.com WeChat: 19128609186 Tel: (+86)19128609186 Contact: Jessica Jia Skype: jessicajia

1. Technical Background 1.1 Acoustic Emission Technology Introduction Acoustic emission (AE) is the phenomenon of transient elastic waves generated by the rapid release of energy from local sources in materials, sometimes also known as stress wave emission. The acoustic emission testing technology is the acoustic detection method by receiving and analyzing the acoustic emission signals to evaluate the material performances or structural integrity. The deformation and crack propagation of materials under stress are important mechanisms of structural failure. The source directly related to...

• Determine the time and load of the AE occurrence • Assess the severity of the acoustic emission source 1.3 Characteristics of Acoustic Emission Testing The discovery of each acoustic emission source indicates the application of AE system. The AE testing method is different from other conventional NDT methods in many aspects: • It is a dynamic detection method. The detected energy comes from the object itself, not from the detection instrument; • It is sensitive to linear defects and can detect the movement of the defects under external structural stress; • It can detect and evaluate the...

Civil Engineering The aerospace and aviation industry Metal Process 1.5 Key Terms of Acoustic Emission Technology (1) Starting point of AE signal: the starting point of an AE signal recognized by the system processor, is usually when the amplitude begins to exceed the threshold; (2) End point of AE signal: the end point of the AE signal, which is usually defined as the last time that the signal amplitude crosses the threshold; (3) Duration: the time interval between the beginning and the end of the acoustic emission signal; (4) Rise time: the time interval between the starting point of AE...

improve the ability of sound energy passing through the interface in the process of acoustic emission monitoring; (14) Decibel (dB): logarithmic measurement value of AE signal amplitude referring to 1μV, dB = 20lg(A/1μV), where A is the amplitude voltage value of the measured AE signal; (15) Dynamic range: the decibel difference between the overload level and the minimum signal level (usually determined by one or more factors in the noise level, low-level distortion, interference or resolution level) in a system or sensor; (16) Effective sound velocity: the sound velocity calculated on the...

(2) Sampling rate: also known as sampling speed, the number of sampling points per second of analog voltage signal acquired by the ADC module; for example, 10MSPS, means 10M (=10 6) points per second; (3) Sampling accuracy: the sampling accuracy determines the minimum resolution of the signal within the input voltage range. For example, in the 20Vpp input range, the 16-bit sampling accuracy means that the voltage of 20V is divided into 216 units, i.e. the step is about 0.305 mV. The higher the accuracy, the higher the resolution of the signal; (4) TCP/IP: also known as network communication...

continuously higher than the threshold value, and the set HDT cannot define the end of the AE signal, the EET takes effect which means it is the duration of the current hit and other related AE feature parameters are calculated based on this duration. EET is effective only in Hit Extract sample mode, not in Time parameter sample mode; (15) HDT: Hit definition time, also known as the envelop definition time, in unit of micro-second (us). the setting range is 100 ~ 50000μs (positive integer), can be directly input in the text box. It refers to the waiting time interval of a hit signal in...

(17) U3H: When it says U3H, it may refer to the U3H format for data files, i.e. PRA and AED format. Sometimes, it may also refer to the SWAE software server (because previously it only connects to U3H instruments).

2. Product Introduction RAEM1-6 Remote Acoustic Emission system adopts ZYNQ approach with AD4001 chip as the base layer and 4G/Wi-Fi/Ethernet built-in, and supports IoT operations, such as cloud data storage and cloud data reporting. The up-to-date firmware version is V1.0.56_20220530, and the configuration software version is 2.14.2.35.

2.1 RAEM1-6 Introduction RAEM1-6 remote acoustic emission system consists of three parts: ⚫ RAEM1-6 (AE sensor, signal acquisition, communication) Platform (cloud server, LAN, PC, phones) Client end (phones, PC, screens) RAEM1-6 is an intelligent IoT acoustic emission system integrating AE signal acquisition control, analysis, storage with communication. RAEM1-6 host is a rectangular box with aluminum alloy shell with PCB boards inside and a magnet bottom. Each RAEM1-6 includes 2-6 acoustic emission channel. RAEM1-6 includes pre-amplifier power supply, signal conditioning, filtering, ADC...

Output data types are AE parameters, waveform, and parameter ratings. Anyone to all three data types can be selected to stored and output. Data can be uploaded to the cloud IoT platform for display (e.g., Qingcheng Alibaba Cloud or Qingcheng IoT Cloud), or be downloaded to the client computers for post analysis using Qingcheng professional AE signal analysis software. It can also be sent to Qingcheng SWAE software directly for real-time analysis. This user’s manual will introduce the regular version of RAEM1-6 system and its connection, configuration and usage. It starts with product parts...

POWER: power indicator (yellow), showing power on and off. It should be steady on after the power supply is connected. RUN: Running indicator (green): indicates the running status of the device. During normal operation, the running light flashes, about once every second; ALARM: Alarm light (red), impact indicator/warning light. Every time there is an impact, the alarm lights up. (Under development, function to be determined) ◆ Sensor interface: connect the external sensors, sensor is commonly preamplifier built-in series; ◆ Clock synchronization interfaces: on-line interface, two interface...