Ultrasonic Probe Frame Shielding EMI
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Solution Overview
Problem
Ultrasonic testing is susceptible to electromagnetic interference from the object being tested and the external environment due to the design of the transduction signal line.
Innovation Solution
An ultrasonic module and probe design that incorporates a frame component with anti-electromagnetic interference (EMI) properties, housing an ultrasonic oscillating component, an acoustic lens, and an adhesive component, with a frame component that provides shielding and impact protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the transduction signal line is packaged at a side of the ultrasonic transducer close to the object to be tested, then the ultrasonic testing can be performed, but the system becomes susceptible to electromagnetic interference from the object and external environment
Solution Approach 1:
The signal line packaging is extracted from the traditional side-packaging configuration and repositioned to the opposite side of the ultrasonic transducer, away from the object being tested. This extraction of the signal line from the interference-prone zone eliminates electromagnetic interference from both the object and external environment while preserving ultrasonic testing functionality.
2Device complexity
If the ultrasonic oscillating component is exposed without a frame component, then the assembly is simpler, but the component lacks protection from impact and electromagnetic interference
Solution Approach 1:
The frame component is designed to perform multiple functions simultaneously: it provides mechanical protection against impact, shields the ultrasonic oscillating component from electromagnetic interference, and serves as a structural support element. This multi-functionality approach adds comprehensive protection without proportionally increasing device complexity.
3Measurement precision
If the acoustic lens is completely exposed, then the ultrasonic beam can be transmitted effectively, but the internal components remain vulnerable to external interference
Solution Approach 1:
The frame component is designed with selective openness and coverage: it remains open in the region where the acoustic lens transmits the ultrasonic beam to maintain transmission effectiveness, while providing shielding coverage over the ultrasonic oscillating component and signal lines to protect them from electromagnetic interference. This local differentiation of open and protected zones optimizes both ultrasonic transmission and component protection.
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
The design effectively shields the ultrasonic oscillating component from electromagnetic interference and provides impact protection, enhancing the reliability and accuracy of ultrasonic testing.
Implementation Method 1
The acoustic lens is in contact with the ultrasonic oscillating component through the first opening
Implementation Method 2
The frame component, used as an anti-electromagnetic interference (anti-EMI) component, covers the ultrasonic oscillating component
Data Source
AI summary
The present disclosure is related to an ultrasonic module and an ultrasonic probe having the same. The ultrasonic module comprises a frame component, an ultrasonic oscillating component, an acoustic lens and an adhesive component. The ultrasonic oscillating component is accommodated in the frame component. The acoustic lens is disposed on the frame component. The adhesive component is accommodated in the frame component. The frame component is disposed between the acoustic lens and the ultrasonic oscillating component. The frame component has a first opening 10 formed at one end adjacent to the acoustic lens. The ultrasonic oscillating component is disposed on a side of the first opening close to the adhesive component. The acoustic lens is in contact with the ultrasonic oscillating component through the first opening.