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    25mm Eddy Current Displacement Sensor, Φ 50mm Probe

    $639.85
    Eddy current sensor working for linear displacement and vibration measurement. Measuring range 25mm, probe diameter 50mm, output signal available in 0-5V/10V voltage, 4-20mA current and RS485, maximum operating current 45mA, DC power supply, linear error ≤±1 %. Eddy current displacement transducer is inductive non-contact type, small size, compact structure, ideal price.
    SKU: ATO-ECDS-2550
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    Free Shipping Worldwide
    Delivery date: 6-12 days

    Buy good price eddy current sensor for your linear displacement measurement. Measuring range 25mm, probe diameter 50mm, optional output signal 0~5V/10V voltage, 4~20mA current or RS485, corresponding max working current 45/25/40mA. Eddy current displacement transducer also can be used in vibration measurement, non-contact, inductive type, stable operation.

    Applications: By measuring the relative position of the measured metal object and the probe end, eddy current displacement sensor senses and processes it into corresponding electrical signal output. Eddy current displacement transducer adopts non-contact measurement, which can work reliably for a long time, has high sensitivity, strong anti-interference ability, fast response speed, and is not affected by media such as oil and water. Eddy current displacement sensors are widely used in long-term real-time monitoring of shaft displacement, shaft vibration, shaft speed and other specifications of large rotating machinery, and are extended to satellite launch, material identification, weighing measurement, metal plate thickness measurement, material deformation and other application fields.

    Specification

    Model ATO-ML33-25
    Measurement Range 25mm
    Probe Diameter 50mm
    Linear Error ≤ ±1 % F.S.
    Resolution 1.25 um
    Repeatability 2.5 um
    Frequency Response (-3dB) 0~1 kHz
    Output Signal (optional) Voltage 0-5V
    Voltage 0-10V
    Current 4-20mA
    RS485
    Power Supply (optional) Voltage type: +9~18V DC, +18~36V DC, ± 15V~± 18V DC
    Current type: +22~30V DC
    RS485 type: +12V DC
    Working Current Voltage type: < 45mA
    Current type: < 25mA
    RS485 type: < 40mA
    Ripple ≤ 20mV
    System Temperature Drift ≤ 0.05% / ℃
    Static Sensitivity Depending on output signal and the corresponding range
    Output Load Voltage output: Load capacity < 10 kΩ
    Current output: Load capacity < 500 Ω
    Calibration Ambient Temperature (20 ± 5) ℃
    Working Temperature Probe -30℃ ~ +150℃, Proximitor -30℃ ~ +85℃
    Protection Grade Probe IP67, Proximitor IP65
    Probe Thread M8X1.0
    Probe Cable Default 5m, customizable
    Power Cable Default 1m, customizable

    Eddy Current Action Principle Diagram (Unit: mm)

    Eddy current action principle diagram

     Eddy Current Displacement Sensor Probe Structure & Dimension Diagram (Unit: mm)

    Eddy Current Displacement Sensor Probe Structure & Dimension Diagram

    Note: The shell of the eddy current displacement sensor probe is used to connect and fix the probe head, and is used as a clamping structure when installing the probe. In order to adapt to different applications and mounting occasions, the probe shell has different types and different threads and size specifications.

    Eddy Current Displacement Sensor Proximitor Shell Dimension Diagram (Unit: mm)

    The proximitor is the signal processing center of the entire eddy current sensor system. On the one hand, the proximitor provides high-frequency AC excitation current for the probe coil to make the probe work. On the other hand, through a special circuit, the proximitor senses the change in the gap between the probe head and the metal conductor. After being processed by the proximitor, a voltage or current output signal that changes with the linear change of the gap is generated.

    Eddy Current Displacement Sensor Proximitor Shell Dimension Diagram

    Tips: Influence of the measured object surface on measurement result of eddy current displacement sensor.

    Surface finish of the measured object facing the probe will affect the measurement result. If the surface of the measured object is not smooth, there will be a large additional error in the actual measurement application. Especially for vibration measurement, the error signal is superimposed with the actual vibration signal, and it is difficult to separate electrically. Therefore, the surface to be tested should be smooth and free of defects such as nicks, holes, bosses, grooves, etc. (except for bosses or grooves specially designed for key phasers and rotational speed measurement). When using eddy current displacement sensor for vibration measurement, the measured surface roughness should be between 0.4um and 0.8um. When using eddy current displacement sensor for displacement measurement, the measured surface roughness should be between 0.4um and 1.6um. If it cannot be satisfied, the surface to be measured needs to be ground or polished.

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