Rotating Angle Beam Probe for Wider Ultrasonic Defect Coverage

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Solution Overview

Problem

Existing ultrasonic probes in non-destructive testing are limited by fixed beam direction, which hinders the detection of defects not aligned with the probe's orientation, necessitating manual repositioning for comprehensive inspection.

Innovation Solution

A rotating ultrasonic probe assembly that adjusts its orientation relative to the target, allowing the ultrasonic beam to traverse a cone-shaped region, enhancing defect detection by rotating about an axis perpendicular to the target surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed beam direction is used in ultrasonic probes, then the device structure is simple, but the detection capability is limited to defects aligned with the probe orientation

Engineering Contradiction:
Improvedetection capabilityVSAvoidprobe structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by enabling the ultrasonic probe to rotate about its longitudinal axis, transforming it from a static fixed-orientation device to a dynamic multi-orientation device. This rotation capability allows the probe to scan defects at various angles without requiring multiple separate probes, thereby improving detection capability while maintaining relatively simple device structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements dimensionality change by adding rotational movement around the probe axis, transitioning from one-dimensional linear scanning to three-dimensional volumetric scanning. This enables the ultrasonic beam to cover a conical detection volume, significantly expanding the detection capability for defects at different orientations and locations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If manual repositioning is performed to inspect defects at different orientations, then comprehensive defect detection is achieved, but inspection time increases

Engineering Contradiction:
Improvedefect detection coverageVSAvoidinspection time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent merges multiple detection functions into a single rotating probe assembly. Instead of requiring separate probes or manual repositioning for different defect orientations, the rotation mechanism combines multiple inspection angles into one integrated device, achieving comprehensive defect detection coverage while reducing inspection time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent enables continuous useful action by allowing the probe to rotate and scan through various angles without interruption or manual intervention. The continuous rotational movement ensures that defects at different orientations can be detected in a single continuous operation, eliminating the time loss associated with stopping and repositioning the probe manually.

Inventive Principle:
Principle #20Continuity of useful action

3Measurement precision

If the ultrasonic beam traverses a cone-shaped region through rotation, then defect detection at various locations is improved, but the probe assembly complexity increases

Engineering Contradiction:
Improvedefect location detectionVSAvoidprobe assembly
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses dynamics to enable the probe assembly to rotate about its axis, allowing the ultrasonic beam to traverse a cone-shaped region. This dynamic capability improves defect location detection precision by enabling scanning at multiple angles, while the rotation mechanism is designed to maintain acceptable assembly complexity through efficient mechanical implementation.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables comprehensive defect detection by varying the ultrasonic beam direction, improving the identification of defects at various locations within the target without manual repositioning.

Implementation Method 1

a first ultrasonic probe configured to generate an ultrasonic beam

Methodology Applied
Scientific EffectUltrasonic wave propagation: Ultrasound

Implementation Method 2

As the ultrasonic waves contact and penetrate the train wheel, they can reflect from features such as outer surfaces and interior defects

Methodology Applied
Scientific EffectAcoustic reflection: Reflection

Data Source

PatentEP3695220B1Ultrasonic angle beam probe with mechanical lateral adjustment
Publication Date: 2025.12.17 GENERAL ELECTRIC CO
  • EP3695220B1 patent drawingFigure 1
  • EP3695220B1 patent drawingFigure 2A~2B
  • EP3695220B1 patent drawingFigure 3A~3C

AI summary

An inspection system can include a probe assembly comprising a first ultrasonic probe configured to generate an ultrasonic beam. The inspection system, can include a probe holder having a through channel and an outer contacting surface. The through channel can include a first region located at a proximal end of the probe holder. The first region can be configured to receive a distal end of the probe assembly. The probe assembly can be configured to rotate relative to the probe holder about an axis. The outer contacting surface can be located at a distal end of the probe holder and can be configured to removably couple to a target. The ultrasonic beam generated by the first ultrasonic probe can be configured to traverse a target volume in the target based on the rotation of the probe assembly.