Variable Frequency Ultrasonic Testing Apparatus for Thickness Adaptation
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Solution Overview
Problem
Existing ultrasonic testing systems require separate testers for products of different thicknesses, leading to increased costs and complexity due to the need for multiple expensive devices and increased maintenance.
Innovation Solution
An ultrasonic testing apparatus with a variable frequency capability, equipped with a nozzle that jets a medium to form a medium column and multiple probes that oscillate ultrasonic waves at different frequencies, allowing automatic frequency switching based on the object's thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate ultrasonic testers are provided for different product thicknesses, then testing accuracy for specific thickness ranges is improved, but device complexity and cost increase
Solution Approach 1:
The ultrasonic tester is designed with multiple ultrasonic sensors capable of operating at different frequencies (2 MHz and 5 MHz), allowing a single device to test products of various thicknesses. The system automatically selects the appropriate frequency based on the measured thickness, eliminating the need for separate testers for different thickness ranges and reducing overall device complexity while maintaining testing accuracy.
Solution Approach 2:
The system dynamically adjusts the ultrasonic wave frequency based on the real-time measured thickness of the product. The controller automatically switches between 2 MHz and 5 MHz frequencies according to the thickness range, enabling the device to adapt to different testing conditions without manual intervention or physical reconfiguration.
2Adaptability or versatility
If multiple ultrasonic testers are installed for various thicknesses, then comprehensive testing coverage is improved, but installation and maintenance costs increase
Solution Approach 1:
The invention merges the functionality of multiple separate ultrasonic testers into a single integrated system. By combining multiple ultrasonic sensors with different frequency capabilities and implementing automatic frequency selection based on thickness measurement, the system achieves comprehensive testing coverage for various product thicknesses while reducing the number of devices required, thereby lowering installation and maintenance costs.
Solution Approach 2:
The system changes the operating parameters (ultrasonic frequency) based on the measured thickness parameter. The controller automatically selects the appropriate frequency (2 MHz or 5 MHz) according to the thickness range, enabling a single device to adapt to different testing requirements and replace multiple specialized testers.
3Measurement precision
If high frequency ultrasonic waves (5 MHz) are used for thick products, then measurement precision is improved, but energy loss increases
Solution Approach 1:
The system dynamically changes the ultrasonic frequency parameter based on the measured thickness of the product. For thick products (greater than 80 mm), it automatically selects the lower frequency (2 MHz) to minimize energy loss and ensure adequate penetration. For thinner products (80 mm or less), it uses the higher frequency (5 MHz) to achieve better measurement precision. This adaptive parameter adjustment optimizes both precision and energy efficiency.
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 the detection of internal defects in objects of various thicknesses using a single apparatus, significantly reducing installation, operation, and maintenance costs while improving efficiency and quality.
Implementation Method 1
a nozzle jetting a medium towards an object to form a medium column
Implementation Method 2
a plurality of probes disposed on the nozzle to oscillate an ultrasonic wave
Implementation Method 3
The ultrasonic testing diagnoses whether defects, such as cracks, inclusions and segregations are present in products by transmitting ultrasonic waves to the products and receiving and analyzing the ultrasonic waves reflected from the products
Implementation Method 4
receiving and analyzing the ultrasonic waves reflected from the products
Data Source
AI summary
The present invention relates to an ultrasonic testing apparatus with a variable frequency, which can automatically change the frequency according to thickness and thereby detect internal defects in objects having various thicknesses. The ultrasonic testing apparatus may comprise: a nozzle jetting a medium toward an object so as to form a medium column; and a plurality of probes disposed in the nozzle so as to generate ultrasonic waves.