Ultrasonic Inspection Device With Segmented Receiver Array
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Solution Overview
Problem
Conventional ultrasonic inspection devices face challenges in inspecting defects over a wide area with high precision in a short time, particularly when dealing with large subjects.
Innovation Solution
The ultrasonic inspection device employs a transmitter with a recessed arcuate transmission surface and multiple receivers with small reception surfaces, each with an area of no more than (10×λ)^2, arranged in an array to receive the ultrasonic beam, allowing for precise detection of defects by calculating correlation values between reference and inspection waveforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single receiver with a large reception surface is used, then the inspection coverage area is large, but the measurement precision deteriorates
Solution Approach 1:
The patent divides a single large reception surface into multiple smaller reception surfaces by using multiple receivers. Each receiver has a small reception surface area of (10×λ)² or less, which maintains high measurement precision for defect detection. The multiple receivers collectively cover a large inspection area, thus resolving the contradiction between large coverage and high precision.
2Measurement precision
If multiple receivers with small reception surfaces are used, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple receivers with small reception surfaces into a unified receiver array system. This merging approach allows each receiver to maintain high precision while the collective system achieves large inspection coverage. The receivers work together as an integrated unit, managing the complexity through coordinated operation rather than isolated individual systems.
3Use of energy by moving object
If the reception surface area is increased, then the signal strength is improved, but the detection resolution deteriorates
Solution Approach 1:
The patent segments the reception function into multiple receivers, each with a small reception surface area of (10×λ)² or less. This segmentation maintains high detection resolution by limiting the reception surface size, while the collective array of multiple receivers provides sufficient signal strength through combined reception capability, thus resolving the contradiction between signal strength and detection resolution.
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
This configuration enables high-precision defect detection across large areas quickly, reducing physical crosstalk and improving sensitivity, while allowing for the detection of defects smaller than the receiver size.
Implementation Method 1
a transmission unit that transmits ultrasonic waves to a subject and a reception unit that receives ultrasonic waves having transmitted through the subject
Data Source
AI summary
An ultrasonic inspection device includes a transmitter configured to transmit an ultrasonic beam to a subject. The ultrasonic inspection device further includes a plurality of receivers that each have a reception surface configured to receive the ultrasonic beam having transmitted through the subject. An area of the reception surface of each of the plurality of receivers is equal to or less than (10×λ)2, where λ is a wavelength of the ultrasonic beam.