Microphone Vibration Isolation Using Non-Resonant Cord and Biasing Device
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Solution Overview
Problem
Existing shock mount designs for microphones are ineffective in decoupling low-frequency vibrations and noise, and prone to deterioration over time, often balancing support and vibration minimization poorly.
Innovation Solution
A vibration dampening device featuring a frame with multiple surfaces and non-resonant cords supported by a biasing device, providing adjustable tension to isolate microphones from vibrations without using materials that degrade quickly, such as bungee cords or rubber bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic materials such as rubber bands or bungee cords are used to suspend the microphone, then the microphone is isolated from vibrations, but the materials deteriorate over time and lose effectiveness
Solution Approach 1:
The patent replaces elastic rubber materials with a mechanical spring system that uses metal coils and compression springs. This substitution maintains the vibration isolation function while eliminating the deterioration problem of rubber materials. The spring mechanism provides consistent mechanical support without the aging and elasticity loss that plagues rubber-based shock mounts.
Solution Approach 2:
The invention uses composite construction combining metal springs with rubber isolators in a hybrid system. The metal springs provide structural support and tension while the rubber elements handle compression and isolation, creating a system where each material operates in its optimal performance range, extending overall system life while maintaining vibration isolation.
2Strength
If tension is increased to support the microphone firmly, then the microphone is securely held, but vibrations are transmitted more readily to the microphone
Solution Approach 1:
The patent employs adjustable tension mechanisms that allow the operator to modify the spring pre-load and cord tension parameters. By changing these mechanical parameters, the system can be tuned to provide optimal support strength while maintaining vibration isolation. The adjustable nature allows adaptation to different microphone weights and isolation requirements.
Solution Approach 2:
The invention uses dynamic spring systems that can adapt their stiffness characteristics based on the operating conditions. The compression springs and tension cords work together to provide a dynamic response to vibrations, allowing the system to maintain firm support during static conditions while isolating vibrations during dynamic conditions through the inherent damping characteristics of the spring-mass system.
3Object-affected harmful factors
If tension is reduced to minimize vibrations, then vibration transmission is decreased, but the microphone may fall off the stand
Solution Approach 1:
The patent uses pre-tensioned springs that provide a counteracting force to balance the microphone weight. The spring system is configured to exert upward tension that counterweights the downward gravitational force, allowing the suspension cords to operate at lower tension levels for vibration isolation while still maintaining secure support through the spring's compensating force.
Solution Approach 2:
The invention merges the support function and vibration isolation function into a single integrated spring-cord system. The compression springs and tension cords work together synergistically, where the springs provide primary support and the cords provide secondary stabilization and isolation, achieving both secure holding and vibration minimization simultaneously rather than requiring separate mechanisms.
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 microphones from vibrations, maintaining performance over long periods without maintenance, balancing support and vibration reduction, and preventing low-frequency noise introduction.
Implementation Method 1
a biasing device connected to the non-resonant cord, the biasing device adapted to provide tension to the non-resonant cord
Implementation Method 2
the non-resonant cord adapted to support a microphone and absorb vibration
Data Source
AI summary
A device for isolating a microphone from vibrations, the device comprising a frame comprising a plurality of surfaces, the plurality of surfaces laying on a plane that is different from each other and defining at least one mounting point; at least one non-resonant cord attached to the mounting point of the frame, the non-resonant cord adapted to support a microphone and absorb vibration; and a biasing device connected to the non-resonant cord, the biasing device adapted to provide tension to the non-resonant cord.