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使用振动轴向探头对聚甲基丙烯酸甲酯的固化状态传感

Cure State Sensing of Polymethylmethacrylate Using a Vibrating Axial Probe.

作者信息

Nguyen Avonley, Nguyen Quang V, Funk Daniel

机构信息

RFA Systems, LLC., Aldie, VA 20105, USA.

WaveTest, LLC., Cincinnati, OH 45208, USA.

出版信息

Sensors (Basel). 2024 Jul 5;24(13):4365. doi: 10.3390/s24134365.

DOI:10.3390/s24134365
PMID:39001144
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11243993/
Abstract

A new axially vibrating sensor based on an audio voice coil transducer and a lead zirconate titanate (PZT) piezoelectric disc microphone was developed as a probe for the measurement of in vitro rheological fluid properties, including curing progress for polymethylmethacrylate (PMMA) mixtures with important uses as bone cement in the field of orthopedics. The measurement of the vibrating axial sensor's acoustic spectra in PMMA undergoing curing can be described by a damped harmonic oscillator formalism and resonant frequency (ca. 180 Hz) shift can be used as an indicator of curing progress, with shifts to the blue by as much as 14 Hz. The resonant frequency peak was measured in 19 different 4.0 g PMMA samples to have a rate of shift of 0.0462 ± 0.00624 Hz·s over a period of 400 s while the PMMA was in a dough state and before the PMMA transitioned to a hard-setting phase. This transition is unambiguously indicated by this sensor technology through the generation of a distinct circa 5 kHz high-Q under-damped ring-down response.

摘要

一种基于音频音圈换能器和锆钛酸铅（PZT）压电圆盘麦克风的新型轴向振动传感器被开发出来，作为一种探头用于测量体外流变流体特性，包括聚甲基丙烯酸甲酯（PMMA）混合物的固化过程，PMMA混合物在骨科领域用作骨水泥具有重要用途。在固化的PMMA中振动轴向传感器的声谱测量可以用阻尼谐振子形式来描述，谐振频率（约180Hz）的偏移可以用作固化过程的指标，偏移到蓝色可达14Hz。在19个不同的4.0g PMMA样品中测量到谐振频率峰值在400s的时间段内，当PMMA处于面团状态且在转变为硬固化阶段之前，其偏移速率为0.0462±0.00624Hz·s。这种转变通过该传感器技术产生的大约5kHz的独特高Q值欠阻尼衰减响应而明确显示出来。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/47b9b011bd0e/sensors-24-04365-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/cf1e0813b7c9/sensors-24-04365-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/240e88c9b0ec/sensors-24-04365-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/19139d661ec1/sensors-24-04365-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/95bfeba9731a/sensors-24-04365-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/9d5b7ead090e/sensors-24-04365-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/239acbdad727/sensors-24-04365-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/a5f944f158d6/sensors-24-04365-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/3c612f245ae2/sensors-24-04365-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/47b9b011bd0e/sensors-24-04365-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/cf1e0813b7c9/sensors-24-04365-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/240e88c9b0ec/sensors-24-04365-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/19139d661ec1/sensors-24-04365-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/95bfeba9731a/sensors-24-04365-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/9d5b7ead090e/sensors-24-04365-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/239acbdad727/sensors-24-04365-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/a5f944f158d6/sensors-24-04365-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/3c612f245ae2/sensors-24-04365-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5ab/11243993/47b9b011bd0e/sensors-24-04365-g009.jpg

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本文引用的文献

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