Ultrasonic Ranging Device Vibration Isolation
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Solution Overview
Problem
Ultrasonic ranging devices face errors in low-temperature conditions, high-pressure water immersion, and significant compression due to vibrational energy transmission between probes, leading to incorrect readings.
Innovation Solution
An ultrasonic ranging device with a housing containing spaced cavities for transducer cores and an isolation component that creates a predetermined gap to isolate and attenuate vibrations between the transducer cores, ensuring accurate readings even in extreme conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitting and receiving probes are separated by an elastic material, then the device can function normally under regular conditions, but in low-temperature conditions the elastic material stiffens causing vibrational energy to be directly transmitted resulting in erroneous values
Solution Approach 1:
The patent introduces a vibration isolation component as an intermediary element between the transmitting and receiving probes. This component specifically targets and mitigates the harmful vibrational energy transmission that occurs through the elastic material in low-temperature conditions, while preserving the normal functional coupling between probes. The isolation component acts as a selective mediator that blocks harmful vibrations while allowing useful ultrasonic signals to pass through.
Solution Approach 2:
The patent changes the physical state or properties of the elastic material by adjusting temperature parameters or material composition to prevent stiffening in low-temperature conditions. Alternatively, the vibration isolation component modifies the vibrational characteristics by changing the frequency response or damping properties to prevent direct transmission of vibrational energy while maintaining signal transmission.
2Strength
If the gap between transmitting and receiving probes and elastic material is filled with water in high-pressure water immersion, then the device structure remains intact, but incorrect readings are produced
Solution Approach 1:
The vibration isolation component serves as an intermediary that prevents water from directly coupling the transmitting and receiving probes. By positioning this isolation component in the gap between probes and elastic material, it creates a barrier that blocks water-filled pathways while maintaining structural integrity during high-pressure water immersion conditions.
Solution Approach 2:
The patent segments the coupling path between transmitting and receiving probes by introducing the vibration isolation component as a separate element. This segmentation creates distinct functional zones: the elastic material maintains structural coupling, while the vibration isolation component blocks water-filled pathways that would cause erroneous readings.
3Stability of the object's composition
If significant compression force is applied to the device, then the device structure remains stable, but erroneous values are produced rendering the ultrasonic ranging device incapable of functioning correctly
Solution Approach 1:
The vibration isolation component acts as a mediator that decouples the compression force transmission path from the ultrasonic signal transmission path. Under significant compression, the isolation component absorbs or blocks the harmful vibrational energy while allowing the elastic material to maintain structural stability and the ultrasonic probes to function correctly.
Solution Approach 2:
The patent extracts the harmful vibrational energy transmission path by introducing the vibration isolation component specifically to block compression-induced vibrations. This extraction separates the useful structural stability function from the harmful measurement interference, allowing the device to withstand compression forces without producing erroneous readings.
4Adaptability or versatility
If high-temperature expansion occurs, then the device structure adapts to thermal conditions, but erroneous values are produced
Solution Approach 1:
The vibration isolation component serves as a thermal mediator that prevents high-temperature expansion-induced vibrations from directly coupling the transmitting and receiving probes. By positioning this isolation component in the gap between probes and elastic material, it blocks thermal expansion pathways while allowing the structure to adapt to high-temperature conditions.
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 device effectively isolates vibrations between the transmitting and receiving probes, maintaining accuracy and reliability under compression, low-temperature, and high-pressure water exposure, achieving zero-blind-zone ranging with high reliability.
Implementation Method 1
the isolation component is positioned at the rear end of the transducer cores and forms a predetermined gap by separating from the housing at the rear end of the transducer cores to isolate and attenuate vibrations interference between the two transducer cores
Implementation Method 2
Ultrasonic ranging devices generally consist of transmitting probes and receiving probes
Implementation Method 3
when the ultrasonic waves encounter an obstacle and reflect back, echoes with widths W1′ and W2′ are detected
Data Source
AI summary
The present invention discloses an ultrasonic ranging device and method. The ultrasonic ranging device comprises a housing, at least two transducer cores, and at least one isolation component. The housing includes at least two spaced cavities, each for accommodating one of the at least two transducer cores. The isolation component is positioned at the rear end of the transducer cores and forms a predetermined gap by separating from the housing at the rear end of the transducer cores to isolate and attenuate vibrations interference between the two transducer cores. The at least one isolation component effectively addresses the interference issue between at least two transducer cores, such as the transmitting transducer core and the receiving transducer core, in extreme conditions (e.g., compression, low temperature).