Percussion Striking Member Vibration Sensor for Time Lag Reduction
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Solution Overview
Problem
Existing percussion instrument striking detection devices experience significant time lag between the strike and vibration detection, and struggle to reliably detect vibrations in conformance with striking force due to sensor placement and head material variations, leading to uncomfortable performance and potential damage from striking force.
Innovation Solution
A percussion instrument striking detection device with a shaft member and a striking member equipped with a vibration sensor, where the sensor is positioned closer to the striking point, minimizing time lag and detecting vibrations independently of head tension and material, using an elastic member to protect the sensor from impact and adjust resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is mounted at the peripheral portion of the drum head, then the differences in vibrations detected by the sensor are minimized, but the time lag between striking and vibration detection becomes significant
Solution Approach 1:
The invention divides the drum head into multiple measurement zones by using multiple sensors positioned at different locations (center, periphery, and intermediate positions). This segmentation allows the system to capture vibration characteristics from multiple points simultaneously, reducing the time lag issue while maintaining measurement precision through comparative analysis of the segmented data.
Solution Approach 2:
The invention introduces a spatial dimension by positioning sensors at multiple locations across the drum head surface rather than at a single point. This multi-dimensional arrangement enables the system to detect vibrations at various distances from the strike point, thereby reducing time lag while maintaining consistent measurement through spatial distribution of sensing points.
2Loss of time
If the sensor is mounted at the center position of the drum head, then the distance to striking location is short, but large differences in vibrations are detected when striking location varies
Solution Approach 1:
The invention segments the measurement function across multiple sensors positioned at different locations (center, periphery, intermediate). This allows the system to maintain short detection distance from the strike point (reducing time lag) while also capturing vibration characteristics from multiple spatial zones (improving measurement consistency) through comparative analysis of segmented sensor data.
Solution Approach 2:
The invention makes the sensor system universal by enabling it to function effectively regardless of the exact striking location on the drum head. Multiple sensors positioned at different locations work together to provide consistent vibration detection whether the strike occurs at the center, periphery, or intermediate positions, thereby achieving both time lag reduction and measurement precision.
3Adaptability or versatility
If the drum head material is rubber or similar materials, then the head vibrations are difficult to detect, but tension adjustments are required to generate desired musical tone
Solution Approach 1:
The invention introduces the drum shell as an intermediary structure that transmits vibrations from the rubber drum head to the sensors. The shell acts as a mediator that converts the difficult-to-detect rubber head vibrations into detectable signals, enabling accurate vibration measurement while maintaining adaptability to various head materials including rubber.
Solution Approach 2:
The invention changes the detection parameter by measuring vibrations at multiple locations and times rather than relying on a single fixed measurement point. This multi-parameter approach allows the system to accurately detect vibrations from rubber heads by capturing the vibration pattern across different spatial and temporal parameters, eliminating the need for tension adjustments.
4Area of stationary object
If the drum head is a relatively large membrane surface, then sympathetic vibrations from other instruments occur, but the sensor may detect unwanted vibrations
Solution Approach 1:
The invention segments the large drum head surface into multiple measurement zones using multiple sensors positioned at different locations. This segmentation allows the system to focus on specific local vibration patterns rather than the entire large surface, thereby reducing the impact of sympathetic vibrations from other instruments while maintaining the ability to detect the full drum head response.
Solution Approach 2:
The invention adds a temporal dimension to the measurement by capturing vibrations at multiple time points across different sensor positions. This multi-dimensional approach allows the system to distinguish between genuine drum head vibrations and sympathetic vibrations from other instruments by analyzing the temporal pattern and phase relationships across the distributed sensor array.
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
This configuration reduces time lag between strike and tone generation, provides reliable vibration detection in line with striking force, and protects the sensor from damage, allowing for versatile application across various percussion instruments.
Implementation Method 1
the vibrations of the striking member that are produced at the time that the head of the percussion instrument is struck can be detected by the vibration sensor that is inside of the striking member
Implementation Method 2
an elastic member that is made from an elastic material, attached inside the striking member, and configured to hold the vibration sensor
Data Source
AI summary
A percussion instrument striking detection device is configured to minimize time lag from striking the head until detection of head vibrations and for reliable detection of the vibrations in conformance with the striking force without regard to the head condition. A striking member has a vibration sensor. Therefore, the distance from the striking location on the head to the vibration sensor can be short, to minimize time lag. In addition, the effect of the tension or the material of the head on the vibrations detected by the vibration sensor can be minimized and vibrations in conformance with the striking force can be reliably detected.