Acoustic Testing Device With Substrate Opening For Dynamic Temperature Analysis

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Solution Overview

Problem

There is a lack of devices and systems capable of dynamically testing the relationship between the performance of acoustic components and temperature changes.

Innovation Solution

An acoustic testing device is designed with a substrate, an acoustic component, a fixture component, and an acoustic sensing component, which allows for the testing of acoustic components under different temperature conditions by sensing acoustic waves through a substrate opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional static testing methods are used, then the testing structure is simple, but the ability to dynamically test acoustic component performance across different temperatures is lacking

Engineering Contradiction:
Improvetemperature testing capabilityVSAvoidtesting system structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The acoustic component is nested within a fixture component that contains a cavity structure. The fixture component is positioned on a substrate with a substrate opening, creating a nested arrangement where the acoustic component, fixture component, and substrate form concentric structural layers. This nesting enables temperature-controlled testing while maintaining a compact overall structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The substrate acts as an intermediary element between the acoustic component and the fixture component. It provides a stable mounting platform with a substrate opening that allows acoustic waves to pass through while maintaining the structural integrity of the testing system. The substrate mediates the interaction between components while enabling temperature-controlled acoustic testing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the acoustic component is directly exposed to temperature changes, then the testing is straightforward, but the acoustic sensing component cannot accurately sense the acoustic waves

Engineering Contradiction:
Improveacoustic wave sensing accuracyVSAvoidfixture structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The testing device is segmented into distinct functional regions: a first cavity for housing the acoustic sensing component and a second cavity for accommodating the acoustic component. The substrate is divided into regions with a substrate opening that allows acoustic wave transmission. This segmentation creates dedicated zones for sensing and testing while maintaining measurement precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fixture component creates a three-dimensional cavity structure that positions the acoustic sensing component at a specific spatial relationship to the acoustic component. The vertical arrangement with the substrate opening provides a dimensional path for acoustic wave transmission while keeping the sensing component protected from direct temperature exposure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If the acoustic sensing component is placed close to the acoustic component, then the sensing efficiency is high, but the acoustic component blocks the sensing component from accurately detecting acoustic waves

Engineering Contradiction:
Improvesensing efficiencyVSAvoidacoustic wave detection accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The fixture component is pre-configured with a cavity structure that positions the acoustic sensing component before the acoustic component is installed. The substrate opening is pre-formed to provide an acoustic wave transmission path. This preliminary arrangement ensures that when the acoustic component is placed, it does not block the sensing component's view while maintaining optimal sensing efficiency.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The substrate opening acts as an intermediary channel that allows acoustic waves to travel from the acoustic component to the acoustic sensing component without direct line-of-sight alignment. This intermediary path enables the sensing component to detect acoustic waves accurately while being positioned separately from the acoustic component to avoid blocking.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 obtains the performance of acoustic components at various temperatures, enabling dynamic testing and analysis of the component's performance in extreme high and low temperatures.

Implementation Method 1

The acoustic sensing component is configured to sense an acoustic wave radiated from a second side of the acoustic component via the substrate opening

Methodology Applied
Scientific EffectAcoustic wave radiation and transmission: Sound

Data Source

PatentUS20250175752A1Acoustic testing device, fixture structure, testing board and acoustic testing method
Publication Date: 2025.05.29 XMEMS TAIWAN CO LTD
  • US20250175752A1 patent drawing
  • US20250175752A1 patent drawing
  • US20250175752A1 patent drawing

AI summary

An acoustic testing device includes a substrate, an acoustic component, a fixture component and an acoustic sensing component. The substrate has a first and a second surfaces and a substrate opening. The acoustic component has a first side and a second side and is disposed on the first surface of the substrate and corresponding to the substrate opening. The acoustic sensing component is fixed by a fixture component. The substrate is between the acoustic component and the fixture component, and the acoustic component is connected to the first cavity through the substrate opening. The first side of the acoustic component faces a second cavity and experiences a testing condition maintained within the second cavity. The acoustic sensing component senses an acoustic wave radiated from the second side of the acoustic component via the substrate opening while the first side of the acoustic component experiences the testing condition.