ECT Bobbin Flexible Probes

ECT Bobbin Flexible Probes

Brand: TheSonic India
Product Name: ECT Bobbin Flexible Probes
Product Category: Eddy Current Testing Probes
Inspection Method: Eddy Current Testing / ECT Tube Inspection
Probe Type: Flexible Bobbin Probe
Application: Eddy current inspection of tubes with bends, U-bends, curved sections, and restricted tube paths
Email: i@thesonic.com

Product Overview

TheSonic India ECT Bobbin Flexible Probes are developed for tube inspection applications where a standard rigid bobbin probe may not travel smoothly through the tube path. These probes are especially useful for U-bend tube inspection, curved tube sections, tight access areas, and applications where probe flexibility is required to complete the inspection.

The flexible bobbin probe uses eddy current technology to inspect electrically conductive non-ferromagnetic tubes from the inside diameter. The probe is pulled or pushed through the tube, and the coil response is monitored as the probe passes through straight sections, bends, U-bends, and curved areas.

Flexible ECT Bobbin Probes are suitable for tube bundles where complete tube coverage is important, including areas near bend regions where degradation, wear, stress-related damage, or localized corrosion may be present.

Working Principle / Technology Overview

ECT Flexible Bobbin Probes operate using the same electromagnetic induction principle as standard eddy current bobbin probes. An alternating current is passed through the probe coil, creating an alternating magnetic field. This field induces eddy currents in the conductive tube wall.

When the flexible probe passes through a defective or changed area, the eddy current pattern is disturbed. The instrument detects this as a signal change. The response can be used to evaluate tube condition, wall loss, pitting, corrosion, cracking, erosion, and geometry-related indications, depending on probe configuration and inspection procedure.

The flexible construction allows the probe to move through curved tube sections while maintaining the eddy current sensing function. This makes it useful when tube geometry prevents the use of a standard rigid probe.

Key Features

·       Flexible bobbin probe design for ECT tube inspection

·       Suitable for U-bends, bends, curved sections, and restricted tube paths

·       Designed for non-ferromagnetic conductive tube inspection

·       Supports detection of corrosion, pitting, wall loss, cracking, erosion, and tube defects

·       Useful for heat exchanger, condenser, chiller, and process tube inspection

·       Supports improved access through curved or non-straight tube geometry

·       Available with absolute, differential, or combination coil configurations based on requirement

·       Probe diameter selected based on tube ID, bend radius, and fill factor requirement

·       Cable length and connector configuration can be customized

·       Compatible with suitable eddy current instruments, subject to interface confirmation

·       Suitable for shutdown inspection, maintenance inspection, and tube bundle condition assessment

Detailed Product Description

The ECT Bobbin Flexible Probe from TheSonic India is designed for inspection situations where probe movement through bends or curved sections is required. In many heat exchanger and condenser tube bundles, U-bend sections are critical inspection areas because mechanical stress, flow conditions, vibration, deposits, and localized corrosion may affect tube integrity.

A standard rigid bobbin probe may be suitable for straight tube sections but may not be practical for bend regions. The flexible bobbin probe is designed to improve tube travel through curved sections while maintaining eddy current inspection capability. This helps inspection teams cover more tube length and evaluate areas that may otherwise be difficult to inspect with standard probes.

The flexible probe construction, coil design, cable connection, and probe diameter must be carefully selected based on tube ID, bend radius, tube material, wall thickness, and instrument compatibility. Proper selection helps improve signal stability, bend travel, sensitivity, and overall inspection reliability.

TheSonic India can supply ECT Bobbin Flexible Probes in customized configurations based on customer tube details, inspection system, probe frequency requirement, coil configuration, cable length, and connector requirement.

Inspection Capability

ECT Bobbin Flexible Probes can support detection and evaluation of:

·       Internal corrosion

·       External corrosion

·       Pitting

·       General wall loss

·       Localized wall thinning

·       Erosion

·       Cracking, depending on orientation and inspection setup

·       U-bend region defects

·       Bend-area degradation

·       Fretting wear

·       Tube support plate and baffle-related indications

·       Deposit-related signal changes

·       Tube defects and discontinuities

Final performance depends on tube material, tube ID, wall thickness, bend radius, probe flexibility, coil configuration, inspection frequency, calibration standard, instrument setup, and approved inspection procedure.

Typical Applications

·       U-bend heat exchanger tube inspection

·       Condenser tube inspection with curved sections

·       Chiller tube inspection

·       Non-ferromagnetic process tube inspection

·       Curved tube and bend region inspection

·       Straight tube inspection where flexible probe handling is preferred

·       Stainless steel tube inspection

·       Copper alloy tube inspection

·       Titanium tube inspection

·       Brass and copper-nickel tube inspection

·       Shutdown inspection and maintenance planning

·       Full-length tube inspection where bend access is required

Suitable Tube Materials

ECT Bobbin Flexible Probes are generally suitable for electrically conductive non-ferromagnetic tubes, subject to procedure confirmation. Typical materials may include:

·       Stainless steel

·       Austenitic stainless steel

·       Copper

·       Brass

·       Copper-nickel

·       Titanium

·       Inconel and nickel alloys, subject to application review

·       Other non-ferromagnetic conductive tube materials

For ferromagnetic carbon steel tubes, RFET, NFT, or MFL probes may be more suitable depending on tube type, defect target, and inspection requirement.

Technical Information

Probe Selection Considerations

Correct flexible ECT probe selection is especially important because the probe must travel through the tube without damage while maintaining reliable signal response. The following details are normally required:

·       Tube outside diameter

·       Tube inside diameter

·       Tube wall thickness

·       Tube material

·       Tube length

·       U-bend or bend radius details

·       Minimum bend radius to be inspected

·       Required inspection coverage

·       Defect type to be detected

·       Instrument model

·       Required connector type

·       Cable length requirement

·       Coil configuration requirement

·       Inspection frequency requirement, if available

·       Calibration tube / reference standard details

·       Site inspection condition

·       Required quantity

Compatibility and Customization

TheSonic India ECT Bobbin Flexible Probes can be customized for different tube sizes, bend requirements, inspection instruments, and project applications. Probe compatibility can be confirmed based on instrument connector, channel configuration, cable requirement, coil arrangement, tube ID, bend radius, and approved inspection procedure.

The flexible probe may be supplied with suitable probe body length, cable arrangement, and connector configuration based on customer system and inspection setup.

Recommended Industries

·       Oil & Gas

·       Refineries

·       Petrochemical Plants

·       Power Plants

·       Fertilizer Plants

·       Chemical Process Plants

·       HVAC and Chiller Maintenance

·       Heat Exchanger Maintenance

·       Condenser Maintenance

·       NDT Service Companies

·       Inspection and Quality Control Laboratories

Why Choose TheSonic India ECT Bobbin Flexible Probes?

TheSonic India ECT Bobbin Flexible Probes are designed for tube inspection applications where flexibility and reliable signal response are both important. They support inspection of curved tube regions, U-bends, and restricted tube paths while maintaining eddy current inspection capability for non-ferromagnetic conductive tubes.

These probes are suitable for customers requiring customized ECT probe solutions for heat exchanger inspection, condenser inspection, chiller inspection, shutdown maintenance, and full-length tube condition assessment.

Contact Note

For technical details, probe compatibility confirmation, product customization, commercial quotation, or bulk supply requirements, please contact TheSonic India.

Email: i@thesonic.com
Brand: TheSonic India