Embedded Multi-Sensor Sheet for Tension and Strike Position Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices for measuring physical characteristics in percussion instrument heads, such as drumheads, are limited by the use of piezoelectric sensors, which restrict the ability to measure tension distribution and accurately detect strike positions, offering limited signal processing capabilities.
Innovation Solution
A device employing multiple sensors of different types, such as capacitive, resistive, and inductive sensors, embedded in various positions within the sheet material, to measure various physical characteristics and changes, including tension distribution and strike positions, with a signal processing unit to process these signals for enhanced analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a piezoelectric sensor is used to detect drum head strikes, then the triggering function is achieved, but the ability to measure tension distribution and detect exact strike positions is lost
Solution Approach 1:
The drum head is divided into multiple measurement zones with separate sensors positioned at different locations. Each sensor independently measures physical characteristics at its specific position, enabling both comprehensive tension distribution measurement and precise strike position detection through spatial segmentation of the measurement system.
Solution Approach 2:
The measuring device is designed to perform multiple functions simultaneously: it can measure tension distribution across the drum head, detect exact strike positions, measure vibrations, and trigger electronic sounds. This multi-functional approach replaces the limited single-function piezoelectric sensor with a comprehensive measurement system that handles all measurement needs through integrated sensors and signal processing.
2Adaptability or versatility
If multiple sensors are embedded in the sheet material, then comprehensive physical characteristic measurement is achieved, but device complexity increases
Solution Approach 1:
Sensors are embedded within the layered structure of the drum head, with sensor elements positioned between or within sheet layers. This nesting approach integrates the sensors into the existing drum head construction rather than adding external components, reducing overall device complexity while maintaining comprehensive measurement capability across tension, vibration, and position parameters.
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 approach provides a more comprehensive understanding of the sheet's state, enabling new applications like tuning indications and linking tension changes to sound files, offering improved accuracy and versatility in measuring physical characteristics.
Implementation Method 1
the sensor is a capacitive sensor
Implementation Method 2
the sensor is a resistive sensor
Implementation Method 3
the sensor is an inductive sensor
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Device (1) for measuring physical characteristics or changes in physical characteristics in a sheet (2), provided with one or more sensors (3) embedded in the sheet (2), whereby the sensors (3) are meant to measure at least one of the aforementioned physical characteristics and generate or influence an electrical signal (8) as a function of a measured physical characteristic or a change in such a physical characteristic, whereby the device (1) also comprises a signal processing unit (9) for processing the electrical signal (8) or the electrical signals (8) supplied to the signal processing unit (9)· from the sensor (3) or the sensors (3).