GTET-02 Cylinder Liner Eddy Current Testing Machine

We have eddy current machine for sale!

GTET-02 Cylinder Liner Eddy Current Testing Machine Introduction

  1. The rate of missed standard defect is 0%; the rate of false positives (only misidentified products are judged as non-conforming products) ≤1%.

Detection method

Eddy current testing is to connect the conductor to the coil with alternating current. The alternating magnetic field is established by the coil. The alternating magnetic field passes through the conductor and electromagnetic induction is applied to establish an eddy current in the conductor.

The eddy currents in the conductor also generate their own magnetic field, and the action of the eddy current magnetic field changes the strength of the original magnetic field, which in turn causes a change in the coil voltage and impedance.

When a defect occurs on the surface or near-surface of the conductor, the intensity and distribution of the eddy current will be affected. The change of the eddy current causes a change in the voltage and impedance of the detecting coil. According to this change, the existence of the defect in the conductor can be indirectly known.

Since the shape of the test piece is different and the detection position is different, the shape of the test coil is different from that of the test piece. In order to meet various testing needs, various detection coils and eddy current testing instruments have been designed.

In eddy current testing, the detection coil is used to establish an alternating magnetic field; the energy is transmitted to the conductor to be inspected, and the alternating magnetic field established by the eddy current is used to obtain the quality information in the detected conductor. Therefore, the detection coil is a transducer.

The shape, size and technical parameters of the test coil are critical to the final inspection. In eddy current testing, the type of detection coil is often selected according to the shape, size, material, and quality requirements (testing standards) to be detected. There are three types of commonly used detection coils.

1) Through coil

The through the coil is a coil that detects the sample to be tested and put it in the coil and is suitable for flaw detection of tubes, rods, and wires. Since the magnetic field generated by the coil acts first on the outer wall of the sample, the effect of detecting the outer wall defect is good, and the detection of the inner wall defect is performed by the penetration. In general, the detection sensitivity of the inner wall defect is lower than that of the outer wall. The drawback of thick-walled tubing is that it cannot be detected using an externally wound coil.

2) Interpolated coil

The interposer coil is a coil placed inside the tube for inspection. It is used to inspect the defects of thick walls or the inner walls of the borehole. It is also used to check the quality of the tubes in the complete equipment, such as the in-service inspection of heat exchanger tubes.

3) Probe coil

The probe coil is a coil placed on the surface of the sample for inspection. It is not only suitable for surface scanning inspection of simple plates, slabs, billets, round billets, bars and large diameter pipes, but also for complex shapes. Inspection of mechanical parts. Compared with the through the coil, the probe coil is suitable for detecting small surface defects due to its small volume and small field action range.

BKNis an eddy current testing benchmark enterprise and has long been committed to the development and production of bearing hardness and crack eddy current screening equipment. If you want to know more details or want a quotation, just feel free to contact us!

Send product request

To: Nanjing BKN Automation System Co.,LTD
Your E-mail:
Message text:

Send to other suppliers

Other supplier products

Magnetic Flux Leakage Testing Equipment
Magnetic Flux Leakage Testing Equipment Electromagnetic detection is a very important non-destructive testing method and is widely used. Magnetic flux leakage testing is a magnetic method...
EDM Notch
EDM Notch Nanjing BKN Automation System Co., Ltd., originated from the eddy current testing laboratory of the Nanjing University of Technology. It is an eddy...
RQ-120-B Automatic CNC EDM Notch
RQ-120-B Automatic CNC EDM Notch "RQ-120-B Electric Pulse Automatic CNC EDM notches" is a precise instrument specially developed by Nanjing BKNAutomation System Co., Ltd. for makin...
Bolt Vortex Sorter BKNFX-11
Bolt Vortex Sorter BKNFX-11 Bolt: Mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external ...
RQ-120-B Automatic CNC EDM Notch
RQ-120-B Automatic CNC EDM Notch BKNis one of professional ultrasonic testing equipment manufacturers. We provide Magnetic Flux Leakage Testing, eddy current testing and so on. Wan...
All supplier products

Same products

ELEVATOR LANDING DOOR Seller: SUZHOU PANDA ELEVATOR CO., LTD The elevator landing dooris the door installed on each floor. According to the opening directions...
Flameless Explosion Venting
Flameless Explosion Venting Seller: Dongguan VILLO Technology Inc. Flameless Quench Device, or Flameless Vent Device. Product execution standards GB/T15605 Dust exp...
SQP Series Vane Pump
SQP Series Vane Pump Seller: Elephant Fluid Power Elephant Fluid Power: Provide SQP series hydraulic pump vane. We can make varies of hydraulic pum...
Spare Part For Caterpillar Motor
Spare Part For Caterpillar Motor Seller: Elephant Fluid Power Elephant Fluid Power provides Caterpillar OEM parts with the advantages of reasonable price, fast...
Sauer Piston Pump Series Seal Kit
Sauer Piston Pump Series Seal Kit Seller: Elephant Fluid Power Elephant Fluid Power: Provide Sauer series hydraulic pump rebuild kits, original OEM pump parts a...