128229-01 电涡流传感器 可以实现精确的位移

128229-01 电涡流传感器是一种基于电涡流效应的传感器，它利用金属导体在交变磁场中产生的电涡流来测量被测金属导体与传感器探头之间的距离或位移。电涡流传感器具有非接触、高线性度、高分辨力、长期工作可靠性好、灵敏度高、抗干扰能力强、响应速度快、不受油水等介质的影响等优点，因此在机械、电力、石油化工等领域得到了广泛应用。128229-01 电涡流传感器的工作原理是，当传感器探头靠近被测金属导体时，探头内的交变电流会产生交变磁场，这个磁场会穿透被测金属导体并在其中产生电涡流。电涡流的大小取决于被测金属导体的几何尺寸、材料特性、线圈激磁电流频率以及线圈与金属体表面的距离等参数。由于电涡流的存在，它会抵消一部分磁场能量，导致线圈的电感量和阻抗发生变化。这个变化量与被测金属导体与探头之间的距离或位移成正比，因此可以通过测量这个变化量来得到被测金属导体的位移或距离信息。

128229-01

电涡流传感器具有多种优点，例如非接触测量可以避免机械磨损和污染，高灵敏度和高分辨率可以实现精确的位移和距离测量，而且其测量范围广泛，可以适应不同的被测物体和应用场景。此外，电涡流传感器还具有快速响应和实时监测的能力，可以对大型旋转机械的轴位移、轴振动、轴转速等参数进行长期实时监测，帮助分析设备的工作状况和故障原因，从而有效地对设备进行保护及预维修。总之，128229-01 电涡流传感器是一种基于电涡流效应的传感器，具有非接触、高线性度、高分辨力、长期工作可靠性好、灵敏度高、抗干扰能力强、响应速度快、不受油水等介质的影响等优点，适用于机械、电力、石油化工等领域中的位移、距离、振动等参数的测量和监测。

128229-01

128229-01 eddy current sensor is a type of sensor based on the eddy current effect, which uses the eddy currents generated by metal conductors in an alternating magnetic field to measure the distance or displacement between the measured metal conductor and the sensor probe. Eddy current sensors have the advantages of non-contact, high linearity, high resolution, good long-term reliability, high sensitivity, strong anti-interference ability, fast response speed, and being unaffected by media such as oil and water. Therefore, they have been widely used in mechanical, electrical, petrochemical and other fields. The working principle of the 128229-01 eddy current sensor is that when the sensor probe is close to the tested metal conductor, the alternating current inside the probe will generate an alternating magnetic field, which will penetrate the tested metal conductor and generate eddy currents within it. The size of eddy currents depends on parameters such as the geometric size of the tested metal conductor, material characteristics, coil excitation current frequency, and the distance between the coil and the surface of the metal body. Due to the presence of eddy currents, they can offset some of the magnetic field energy, causing changes in the inductance and impedance of the coil. This change is directly proportional to the distance or displacement between the tested metal conductor and the probe, so the displacement or distance information of the tested metal conductor can be obtained by measuring this change.

128229-01

Eddy current sensors have various advantages, such as non-contact measurement can avoid mechanical wear and pollution, high sensitivity and resolution can achieve accurate displacement and distance measurement, and their measurement range is wide, which can adapt to different measured objects and application scenarios. In addition, eddy current sensors also have the ability to respond quickly and monitor in real time. They can monitor the parameters of large rotating machinery such as shaft displacement, shaft vibration, and shaft speed in real-time for a long time, helping to analyze the working condition and fault causes of the equipment, thereby effectively protecting and pre repairing the equipment. In summary, the 128229-01 eddy current sensor is a type of sensor based on the eddy current effect, which has the advantages of non-contact, high linearity, high resolution, good long-term reliability, high sensitivity, strong anti-interference ability, fast response speed, and no influence from media such as oil and water. It is suitable for measuring and monitoring displacement, distance, vibration and other parameters in fields such as machinery, power, and petrochemicals.