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    4mm Eddy Current Displacement Sensor, Φ 11mm Probe

    Buy eddy current displacement sensor at affordable price. Measuring range 4mm, probe diameter 11mm, selectable output signal 0~5V/10V voltage, 4~20mA current and RS485, corresponding max working current 45/25/40mA, DC power supply, linear error ≤±0. 5 %. Non-contact inductive eddy current transducer, vibration measurement is available.
    SKU: ATO-ECDS-411
    30-day Returns
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    Delivery date: 6-12 days

    Manufacturer directly sales eddy current displacement sensor. Measurement range 4mm, probe diameter 11mm, output signal 0~5V/10V voltage, 4~20mA current and RS485 for selection, working current less than 45mA. Inductive eddy current linear displacement transducer, also supports vibration measurement, non-contact, affordable price.

    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.


    Model ATO-ML33-04
    Measurement Range 4mm
    Probe Diameter 11mm
    Linear Error ≤ ±0.5 % F.S.
    Repeatability 1 um
    Frequency Response (-3dB) 0~8 kHz
    Output Signal (optional) Voltage 0-5V (1 um resolution)
    Voltage 0-10V (0.2 um resolution)
    Current 4-20mA (0.2 um resolution)
    RS485 (16 bit resolution)
    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 2m, customizable
    Power Cable Default 2m, 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


    4mm Eddy Current Displacement Sensor Details

    Tips: The initial gap of eddy current displacement sensor.

    Regardless of the type of eddy current displacement sensor, its readings have better linearity under a certain gap voltage value. Therefore, when installing the eddy current displacement sensor, a proper initial gap must be adjusted. Manufacturers will conduct a characteristic test for each set of eddy current displacement sensor products and draw the corresponding characteristic curve. When using the eddy current displacement sensor, engineers and technicians must carefully study the matching calibration certificate and carefully analyze the characteristic curve to determine whether the sensor meets the gap to be measured. Generally, the larger the diameter of eddy current displacement sensor, the larger the measured gap.

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