Acoustic Sensor Mechanical Coupling for Reliable Attachment
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Solution Overview
Problem
Conventional acoustic sensors attached to objects using adhesives face issues with deteriorated adhesive strength due to environmental factors and user variability, leading to incorrect wave transmission and maintenance challenges.
Innovation Solution
An acoustic sensor apparatus is designed with a housing that uses mechanical coupling units like bolts, screws, or rivets to securely attach to a medium without adhesives, ensuring standardized operation and easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If adhesive is used to attach the acoustic sensor to the target object, then the sensor can be easily installed, but the adhesive force deteriorates due to environmental factors and time, leading to unreliable attachment
Solution Approach 1:
The patent replaces the chemical bonding system (adhesive) with a mechanical coupling system consisting of a coupling unit with external threads that engage with internal threads in the target object. This mechanical connection provides reliable and durable attachment without the deterioration issues of adhesive bonding, while maintaining ease of installation through simple screwing operations.
2Ease of manufacture
If adhesive is used to attach the acoustic sensor, then initial attachment is achieved, but adhesive strength varies due to user dexterity, causing deviation in installation position and disturbing acoustic wave transmission
Solution Approach 1:
The mechanical coupling unit with standardized external and internal threads replaces the adhesive application process. This provides precise and consistent positioning through the threaded engagement geometry, eliminating the variability caused by user dexterity in adhesive application while maintaining simple attachment procedures.
3Strength
If adhesive is used to attach the acoustic sensor, then the sensor is fixed to the target object, but the attached part must be removed for maintenance and reinstallation is difficult
Solution Approach 1:
The mechanical threaded coupling replaces permanent adhesive bonding, providing both strong attachment strength and easy maintainability. The coupling unit can be unscrewed and removed without damage, allowing simple maintenance and reinstallation operations while maintaining secure fixed operation during normal use.
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 solution provides a strong, standardized attachment method that maintains acoustic wave transmission accuracy and simplifies maintenance by allowing for easy detachment and reinstallation, reducing installation errors and costs.
Implementation Method 1
a coupling unit formed to mechanically couple the body unit or the cap unit to a medium. The coupling unit may include any one of a bolt, a screw, and a rivet.
Implementation Method 2
a sensor unit configured to process an input acoustic signal; a vibration space in which air vibrates by vibration of the housing may be formed in the vicinity of the input unit
Data Source
AI summary
An acoustic sensor apparatus mounted to a medium is disclosed. The acoustic sensor apparatus includes: a sensor unit processing an input acoustic signal; and a housing including a body unit having an accommodation groove in which the sensor unit is accommodated, a cap unit formed to close an opening of the accommodation groove, and a coupling unit formed to mechanically couple the body unit or the cap unit to a medium.