In the modern industries, the operating status monitoring of rotating machinery such as steam turbines, compressors, fans, motors and water pumps is very important. The parameters of these equipment such as vibration, displacement and speed directly reflect their working conditions and potential failure risks. In order to ensure the stable operation of the equipment and timely detect and eliminate faults, eddy current sensors are widely used in the monitoring system of rotating machinery as a high-precision, non-contact measurement tool.

1. Understanding eddy current sensor preamplifiers

Eddy current sensors are developed based on the eddy current effect. By measuring the eddy current changes between the probe and the metal conductor to be measured, the displacement, vibration and other parameters of the conductor are indirectly measured. The sensor TM0182-A50-B01-C00 consists of three parts: probe, extension cable and preamplifier. The probe generates an alternating electromagnetic field, and the metal conductor to be measured absorbs the electromagnetic field and generates eddy current. The changes in eddy current are transmitted to the preamplifier through the extension cable, and the preamplifier converts it into a voltage or current signal output, thereby realizing the measurement of the measured parameters.

2. Technical features of eddy current preamplifier

The eddy current preamplifier TM0182-A50-B01-C00 has a variety of technical features, making it an ideal choice for rotating machinery monitoring:

• High precision: The eddy current sensor can accurately measure tiny displacements and vibrations, with high measurement accuracy and resolution.
• Non-contact measurement: There is no need for direct contact between the sensor probe and the metal conductor being measured, avoiding measurement errors and probe damage caused by friction and wear.
• Strong anti-interference ability: The eddy current sensor has strong anti-interference ability and can work continuously for a long time in harsh environments such as oil, water, and steam, and is not affected by media such as oil, steam, etc.
• Wide application: Eddy current sensors can be used to measure displacement, vibration, speed and other parameters of various rotating machinery, and are widely used in power, petroleum, chemical, metallurgy and other industries.
• Simple structure and easy installation: The sensor has a compact structure, is easy to install and maintain, and reduces the cost of later maintenance.

3. Application of eddy current sensors in rotating machinery monitoring

The eddy current sensor preamplifier TM0182-A50-B01-C00 is widely used in rotating machinery monitoring. The following are some typical application cases:

• Radial vibration measurement: Radial vibration is one of the common fault phenomena of rotating machinery. It reflects the working condition of the bearing and the imbalance of the rotor. The eddy current sensor can monitor the radial vibration of the rotating machinery in real time and output the corresponding displacement or vibration signal to provide key information for fault diagnosis.
• Axial displacement measurement: Axial displacement is one of the important parameters of the shaft system of rotating machinery. It reflects the changes in the axial position and axial vibration of the shaft. The eddy current sensor can accurately measure the axial displacement of the shaft and indicate the wear of the thrust bearing or potential bearing failure.
• Fault diagnosis: In the fault diagnosis of rotating machinery, the eddy current sensor can provide rich vibration information, such as the amplitude, phase and frequency of the vibration. This information can be plotted in polar coordinates and Bode diagrams to analyze the fault type and location. At the same time, the eddy current sensor can also measure the vibration phase angle of the shaft, providing an important basis for monitoring and fault diagnosis.
• Eccentricity measurement: For large turbine machinery, the degree of shaft bending, i.e. eccentricity, needs to be measured during startup. Eddy current sensors can accurately measure the eccentricity of the shaft, providing an important guarantee for the stable operation of the equipment.
• Key phaser signal measurement: The key phaser signal is an important parameter for measuring the rotation speed and phase angle of the shaft. Eddy current sensors can output stable key phaser signals, providing a reliable basis for speed monitoring and phase control of the equipment.

When looking for high-quality, reliable eddy current sensors, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:

E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229