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连云港Integrated Eddy Current Displacement Sensor

  • Product classification:Eddy Current Displacement Sensor
  • Number of views:1039
  • QR code:
  • Release time:2024-10-16
  • Overview

Ⅰ、Operating principle of integrated eddy sensor:

Eddy current sensor systems work on the eddy current effect, which is an inductive measuring principle. The eddy current effect originates from the energy of an oscillating circuit. Eddy currents can only be formed in conductive materials. By introducing an alternating current into the coil inside the sensor probe, a magnetic field is formed around the probe coil. If a conductor is placed into this magnetic field, eddy currents are excited in the conductor according to Faraday's law of electromagnetic induction. According to Franz's law, the direction of the eddy currents is opposite to the magnetic field of the coil, and this changes the impedance of the coil inside the probe. This change in impedance is directly related to the distance from the coil to the object being measured. Sensor probe connected to the controller, the controller can be obtained from the sensor probe voltage value of the amount of change, and as a basis for the calculation of the corresponding distance value, eddy current measurement principle can measure all conductive materials. Because the eddy current can penetrate the insulator, even if the surface is covered with insulator metal material, can also be used as eddy current sensor of the measured object. The unique coil winding design enables the sensor to be operated in high-temperature measurement environments while achieving a compact profile.

Ⅱ、Application range of integrated eddy sensor:

By measuring the relative position of the metal body to be measured and the probe end, eddy current displacement sensor sensing and processing into the corresponding electrical signal output. The sensor can work reliably for a long time, high sensitivity, strong anti-interference ability, non-contact measurement, fast response speed is not subject to the influence of oil and water and other media, in the large-scale rotating machinery, such as shaft displacement, shaft vibration, shaft speed and other parameters of long-term real-time monitoring is widely used, and has been extended to the satellite launch, material identification, weighing measurement, metal plate thickness measurement, material deformation and other application areas.

Ⅲ、Technical parameters of integrated eddy sensor:


Measuring range

1mm

2mm

4mm

5mm

12.5mm

20mm

25mm

50mm

Probe diameter

(standard)

Φ6mm

Φ8mm

Φ11mm

Φ17mm

Φ30mm

Φ40mm

Φ50mm

Φ60mm

Probe diameter

(Countersunk probe)

Φ8mm

Φ8mm

Φ11mm

Φ17mm

/

/

/

/

Probe diameter

(squsre shaped probe)

Φ8mm

Φ8mm

Φ13mm

Φ19mm

/

/

/

/

probe diameter

(circular probe)

/

/

/

/

Φ30mm

Φ40mm

Φ50mm

Φ60mm

Linearity error

(%FS)

≤±0.25

≤±0.25

≤±0.5

≤±0.5

≤±1

≤±1

≤±1

≤±2

Repeatability

0.5um

0.5um

1um

1um

2um

2~4um

2~4um

2~5um

Frequency response

 

0~10KHz

0~8KHz

0~2KHz

0~1KHz

Output signal

0~5V,0~10V,4~20mA,RS485

Supply voltage

Voltage type+9~36VDC or ±15VDC optional

Current type+22~30VDC,RS485 type+12VDC

Working Current

Voltage type<45mA

Current type<25mA

RS485 type<40mA

ripple wave

≤20mV

System temperature drift

According to the output signal and the corresponding range and other factors

static sensitivity

According to the output signal and the corresponding range and other factors

output load

Voltage output:load capacity<10KΩ

Current output:load capacity<500Ω

Ambient temperature at the time of calibration

(20±5)℃

usage temperature

Probe -30℃~+110℃

Front-end device (integrated box)-30℃~+85℃

Protection degree

Probe IP67

Front-end device IP65

Probe cable

standard 2m,can be customized

feed cable

standard 2m,can be customized

Resolution:


Ⅳ、Definition of integrated eddy sensor wiring:



current type

voltage type

RS485

Brown

power  positive    +24VDC

power  positive  +12VDC or +24VDC

power  positive  +12VDC

Black

         /

power negative  0V

power negative  0V

Blue

Current  OUT

output positive  OUT+  

RS485   A+

White

        /

output negative  OUT-

RS485   B-

Shielding wire

Grounding    GND

Grounding  GND

Grounding  GND


Ⅴ、Integrated eddy sensor mounting dimensions:


集成式电涡流图1.png


  • Application