使用振动轴探头对聚甲基甲酸的治愈状态检测
Avonley Nguyen1, Quang V Nguyen1, Daniel Funk2
1RFA Systems, LLC., Aldie, VA 20105, USA.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
一个新的轴振动传感器通过跟踪共振频率变化来监测聚甲基甲酸盐 (PMMA) 骨水泥的固化. 这项技术为骨科应用提供了精确的体外风湿学测量.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 声学 声学 在声学上
背景情况:
- 对聚甲基甲酸盐 (PMMA) 固化的精确监测对于骨科骨应用至关重要.
- 现有的评估风湿性质和治愈进展的方法在精度和实时反方面可能受到限制.
- 了解从面团到硬化阶段的过渡对于手术成功至关重要.
研究的目的:
- 开发和描述一种新的轴向振动传感器,用于体外测量形流体性质.
- 为了利用传感器监测骨科中使用的PMMA混合物的固化进展.
- 为了确定传感器在检测PMMA固化的过渡阶段的能力.
主要方法:
- 使用音频语音线圈转换器和硫酸 (PZT) 压电磁盘麦克风设计了一个轴向振动的传感器.
- 在硬化过程中,在PMMA样本中测量了传感器的声谱.
- 振频率 (大约) 是一个 分析了180 Hz) 的转移和回响响应.
- 在400秒内对19个不同的4.0克PMMA样本进行了测量.
主要成果:
- 通过观察振频率的转变来成功地监测PMMA的固化进展,这种转变是由减弱的波器形式主义描述的.
- 观察到共振频率的蓝色变化高达14 Hz,表明治愈进展.
- 在面团状态下测量了0.0462 ± 0.00624 Hz·s-1的频率转移的一致率.
- 大约5kHz的明显的高Q,低度的戒指下降响应明确地表明过渡到硬设置阶段.
结论:
- 开发的轴振动传感器为体外PMMA固化的风湿学测量提供了一种可靠的方法.
- 传感器技术通过共振频率转移和明显的回声回应有效地跟踪治愈进展.
- 这种传感器为骨科骨应用中的质量控制和过程监控提供了有前途的工具.
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