传感技术学报
傳感技術學報
전감기술학보
Journal of Transduction Technology
2013年
6期
820-824
,共5页
孙犇渊%王化祥%王丕涛
孫犇淵%王化祥%王丕濤
손분연%왕화상%왕비도
电容层析成像%内电极%高介电常数%电导率
電容層析成像%內電極%高介電常數%電導率
전용층석성상%내전겁%고개전상수%전도솔
electrical capacitance tomography%internal electrodes%high dielectric permittivity%conductivity
为了研究电容层析成像系统在测量高介电常数流体中的应用,设计了一套具有内部阵列电极的电容层析成像传感器,改善了传统传感器的灵敏度和非线性特性,拓宽了系统的测量范围。用蒸馏水作为连续相介质进行了数据采集和图像重建,并进一步研究了介质电导率对系统成像的影响。实验表明,该系统可以实现高介电常数介质的测量,并且可用来测量具有微弱导电能力的物体。
為瞭研究電容層析成像繫統在測量高介電常數流體中的應用,設計瞭一套具有內部陣列電極的電容層析成像傳感器,改善瞭傳統傳感器的靈敏度和非線性特性,拓寬瞭繫統的測量範圍。用蒸餾水作為連續相介質進行瞭數據採集和圖像重建,併進一步研究瞭介質電導率對繫統成像的影響。實驗錶明,該繫統可以實現高介電常數介質的測量,併且可用來測量具有微弱導電能力的物體。
위료연구전용층석성상계통재측량고개전상수류체중적응용,설계료일투구유내부진렬전겁적전용층석성상전감기,개선료전통전감기적령민도화비선성특성,탁관료계통적측량범위。용증류수작위련속상개질진행료수거채집화도상중건,병진일보연구료개질전도솔대계통성상적영향。실험표명,해계통가이실현고개전상수개질적측량,병차가용래측량구유미약도전능력적물체。
In order to study the application of electrical capacitance tomography system for media of high dielectric permittivity, an electrical capacitance tomography sensor with internal array electrodes was built. It improves the sensitivity and non-linear characteristics of the sensor and broadens the measurement range of the system. Experimental results concerned with distilled water-continuous media are presented and the effects of conductivity to the imaging of the system are studied. The experiments show that the system can measure the media of high dielectric permittivity and can be used to measure the media with weak conductive ability.