ECT Bobbin Standard Probes

ECT Bobbin Standard Probes

Brand: TheSonic India
Product Name: ECT Bobbin Standard Probes
Product Category: Eddy Current Testing Probes
Inspection Method: Eddy Current Testing / ECT Tube Inspection
Probe Type: Standard Bobbin Probe
Application: Straight tube inspection of heat exchangers, condensers, chillers, and non-ferromagnetic tubes
Email: i@thesonic.com

Product Overview

TheSonic India ECT Bobbin Standard Probes are used for internal tube inspection using the Eddy Current Testing method. These probes are commonly used for rapid inspection of straight tubes in heat exchangers, condensers, chillers, feedwater heaters, and process equipment where the tube material is electrically conductive and non-ferromagnetic.

The standard bobbin probe is inserted inside the tube and pulled through the full tube length. During inspection, the probe generates an alternating electromagnetic field. When the probe passes through areas affected by corrosion, pitting, cracking, wall loss, erosion, deposits, support plate indications, or geometry changes, the eddy current response changes. These changes are detected by the inspection instrument and used for defect evaluation.

ECT Bobbin Standard Probes are suitable for high-speed tube inspection applications where full-length coverage, repeatable signal response, and efficient data collection are required. They are commonly selected for straight tube inspection where a rigid or standard probe body can travel smoothly through the tube.

Working Principle / Technology Overview

Eddy Current Testing works on the principle of electromagnetic induction. The probe coil is excited with alternating current, which creates a changing magnetic field around the coil. When the probe is placed inside a conductive tube, this magnetic field induces circulating eddy currents in the tube wall.

Any change in tube wall condition, such as metal loss, cracking, corrosion, pitting, erosion, conductivity variation, support plate influence, or dimensional change, affects the eddy current flow. This produces a change in probe impedance or signal response, which is displayed and analyzed by the ECT instrument.

In bobbin probe inspection, the coil arrangement provides full circumferential coverage of the tube wall as the probe travels through the tube. This makes bobbin probes useful for fast screening and general tube condition assessment.

Key Features

·       Designed for standard ECT bobbin tube inspection

·       Suitable for straight non-ferromagnetic conductive tubes

·       Supports fast full-length tube inspection

·       Provides full circumferential tube wall response

·       Useful for detecting corrosion, pitting, wall loss, cracking, erosion, and tube defects

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

·       Can be supplied with absolute, differential, or combination coil configurations based on requirement

·       Probe diameter can be selected based on tube ID and required fill factor

·       Available with different cable lengths and connector options

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

·       Suitable for field inspection, shutdown inspection, workshop testing, and tube bundle inspection projects

Detailed Product Description

The ECT Bobbin Standard Probe from TheSonic India is designed for efficient inspection of straight tubes where internal access is available. The probe is pulled through the tube, and the coil response is recorded along the tube length. This makes the probe useful for detecting and evaluating tube degradation in a fast and repeatable manner.

Standard bobbin probes are commonly used when the tube path is straight, clean, and suitable for smooth probe travel. The probe diameter is selected based on the tube internal diameter to maintain good fill factor and stable signal response. A proper fill factor helps improve sensitivity, signal quality, and defect detectability.

The probe may be designed with absolute coils, differential coils, or combined coil arrangements depending on inspection requirement and instrument capability. Differential channels are commonly useful for localized discontinuities, while absolute channels may support gradual wall loss, deposits, and support-related signal evaluation, depending on procedure and data analysis practice.

TheSonic India ECT Bobbin Standard Probes can be supplied in different sizes, frequencies, connector configurations, and cable lengths based on customer requirement, tube material, tube size, inspection instrument, and application.

Inspection Capability

ECT Bobbin Standard 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

·       Tube support plate indications

·       Fretting wear

·       Baffle wear

·       Deposit-related signal changes

·       Tube defects and discontinuities

Final defect detection capability depends on tube material, tube size, wall thickness, probe design, coil configuration, inspection frequency, calibration standard, instrument setup, and inspection procedure.

Typical Applications

·       Heat exchanger tube inspection

·       Condenser tube inspection

·       Chiller tube inspection

·       Feedwater heater tube inspection

·       Non-ferromagnetic process tube inspection

·       Stainless steel tube inspection

·       Copper alloy tube inspection

·       Titanium tube inspection

·       Brass and copper-nickel tube inspection

·       Straight tube bundle inspection

·       Tube integrity assessment

·       Shutdown inspection and maintenance planning

·       High-speed tube screening and condition monitoring

Suitable Tube Materials

ECT Bobbin Standard Probes are generally suitable for electrically conductive non-ferromagnetic tubes, subject to inspection 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 application and inspection objective.

Technical Information

Probe Selection Considerations

Correct ECT bobbin probe selection is important for reliable inspection performance. The following details are normally required:

·       Tube outside diameter

·       Tube inside diameter

·       Tube wall thickness

·       Tube material

·       Tube length

·       Straight tube or U-bend tube configuration

·       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

·       Quantity required

Compatibility and Customization

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

These probes can be supplied for suitable eddy current systems used in industrial tube inspection, subject to technical confirmation and interface review.

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 Standard Probes?

TheSonic India ECT Bobbin Standard Probes are designed for reliable and efficient tube inspection in industrial NDT applications. They support high-speed full-length inspection, stable signal response, customizable probe sizing, and compatibility with suitable eddy current inspection systems.

These probes are suitable for customers requiring dependable ECT tube inspection probes for heat exchanger inspection, condenser inspection, chiller inspection, shutdown inspection, and routine maintenance applications.

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