Electronic Drum Baseplate Vibration Isolation
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Solution Overview
Problem
Conventional electronic drums are prone to picking up undesirable external noise vibrations, which affect the sensitivity and dynamic range of the sensors, as these vibrations can propagate through the support frame and be detected by the rim sensor.
Innovation Solution
Incorporating vibration absorbing pieces between the support frame and the baseplate, which supports the baseplate and houses the sensors, to absorb external vibrations and prevent them from reaching the sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the baseplate is directly supported by the support frame, then the structural stability is improved, but external noise vibrations are transmitted to the sensors causing false detections
Solution Approach 1:
A vibration absorbing piece is introduced as an intermediary element between the support frame and the baseplate. This mediator absorbs and dampens external vibrations transmitted through the support frame, preventing them from reaching the baseplate and sensors, while still maintaining structural support functionality.
Solution Approach 2:
The vibration absorbing piece is installed in advance between the support frame and baseplate to preemptively cushion against external vibrations before they can reach the sensors. This prior cushioning prevents vibration transmission while maintaining structural integrity.
2Measurement precision
If the sensors are made highly sensitive to detect strikes, then the detection precision is improved, but the sensors become more susceptible to picking up external noise vibrations
Solution Approach 1:
The vibration absorbing piece acts as a protective intermediary that isolates the sensors from external vibrations, allowing the sensors to maintain high sensitivity for detecting strikes without being triggered by environmental noise vibrations.
Solution Approach 2:
The vibration absorbing piece converts the potentially harmful effect of external vibrations into a beneficial isolation mechanism, protecting the sensitive sensors while allowing them to maintain their high detection precision for legitimate strike signals.
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 solution enhances sensor sensitivity and broadens the dynamic range by isolating the baseplate from external disturbances, resulting in a more robust and noise-resistant electronic drum.
Implementation Method 1
a vibration absorbing piece provided between the support frame and the baseplate so that the baseplate is supported by the support frame via the vibration absorbing piece
Data Source
AI summary
A baseplate carries on its surface a pad constituting a strike surface and a tubular rim surrounding the pad and constituting a strike ring. A pad sensor is provided on the surface of the baseplate in the central area thereof for detecting the vibration of the baseplate caused by a strike on the pad, and a rim sensor is provided between the rim and the baseplate for detecting the vibration of the rim. The electric signals representing the detected vibrations trigger the generation of tone signals of drum sounds. The baseplate is supported via vibration absorber pieces on a support frame. Thus, disturbing vibrations externally given to the support frame will be prevented from propagating up to the baseplate, being absorbed by the vibration absorber pieces.