Proceedings of IEEE Sensors, 2004.最新文献

Development of non-invasive optical transcutaneous pCO/sub 2/ gas sensor and analytic equipment 无创光学经皮pCO/sub /气体传感器及分析设备的研制

Proceedings of IEEE Sensors, 2004. Pub Date : 2005-06-05 DOI: 10.1109/SENSOR.2005.1497514

Hwan-Joo Lee, Do-Eok Kim, D. Kwon, Seung-Ha Lee, Shin-Won Kang

{"title":"Development of non-invasive optical transcutaneous pCO/sub 2/ gas sensor and analytic equipment","authors":"Hwan-Joo Lee, Do-Eok Kim, D. Kwon, Seung-Ha Lee, Shin-Won Kang","doi":"10.1109/SENSOR.2005.1497514","DOIUrl":"https://doi.org/10.1109/SENSOR.2005.1497514","url":null,"abstract":"We have studied the development of an optical transcutaneous pCO/sub 2/ gas sensor and analyzer using a non-invasive method. The basic principle of the pCO/sub 2/ measurement adapted Beer-Lambert's law and the embodied system using the NDIR (non dispersive infrared) method. CO/sub 2/ gas reacts with a 4.3 /spl mu/m wavelength, so we selected this wavelength by an optical filter, and used energy decrease by molecule oscillations. We measured the CO/sub 2/ concentration using the MFC (mass flow controller) in basic steps instead of the pCO/sub 2/ gas that can collect by inflicting heat on the outer skin. This measuring system consisted of an IR lamp, an optical filter, an optical reaction chamber, a pyroelectric sensor and a signal processing system. We minimized the volume of the optical reaction chamber in order to make the sensor portable. We made an optical reaction chamber with a Si wafer using MEMS technology and it was shortened to 1 mm. We carried out an experiment in photoreaction length variation from 1 mm to 10 mm. We confirmed the linear graph of CO/sub 2/ concentration variation from 1,000 ppm (parts per million) to 100,000 ppm at 1 mm photoreaction length. The response time of this system was within 2 seconds, which is fairly fast.","PeriodicalId":20476,"journal":{"name":"Proceedings of IEEE Sensors, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2005-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84552481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Surface quad beam polymer optical accelerometer 表面四光束聚合物光学加速度计

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426484

A. Llobera, V. Seidemann, J. Plaza, V. Cadarso, S. Buttgenbach

引用次数: 4

Vibrating capacitor: applications in the research of semiconductor gas sensors 振动电容:在半导体气体传感器研究中的应用

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426328

J. Mizsei

引用次数: 0

Fabrication and design of a heat transfer micro channel system at low temperature process by MEMS technique 基于MEMS技术的低温传热微通道系统的制作与设计

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426243

C.W. Liu, C. Gau, C.S. Yang, B. Dai

引用次数: 1

Implantable flexible wireless pressure sensor module 可植入柔性无线压力传感器模块

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426302

Kyu-ho Shin, C. Moon, T. Lee, Chang-Hyun Lim, Youngjin Kim

引用次数: 12

Fabrication and initial characterisation results of a micromachined biomimetic strain sensor inspired from the Campaniform sensillum of insects 受昆虫钟形感受器启发的微机械仿生应变传感器的制造和初步表征结果

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426221

D. Wicaksono, G. Pandraud, G. Craciun, J. Vincent, P. French

引用次数: 7

Wireless multi-channel sensor for neurodynamic studies 用于神经动力学研究的无线多通道传感器

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426320

C. Chestek, P. Samsukha, M. Tabib-Azar, R. Harrison, H. Chiel, S. Garverick

引用次数: 11

Control of resistance to enhance the sensitivity of nanocrystalline tin oxide gas sensitive thick film 控制电阻，提高纳米晶氧化锡气敏厚膜的灵敏度

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426260

Sung‐Jei Hong, D. Moon, J. Han, Sang-Gweon Chang, M. Huh

引用次数: 0

Three dimensional single crystalline force sensor by porous Si micromachining 多孔硅微加工三维单晶力传感器

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426210

M. Adam, E. Vasonyi, I. Bársony, G. Vásárhelyi, C. Ducso

引用次数: 13

Ammonia sensors based on electrospun poly(acrylic acid) fibrous membranes 基于静电纺聚丙烯酸纤维膜的氨传感器

Proceedings of IEEE Sensors, 2004. Pub Date : 2004-12-01 DOI: 10.1109/ICSENS.2004.1426259

B. Ding, M. Kikuchi, M. Yamazaki, S. Shiratori

{"title":"Ammonia sensors based on electrospun poly(acrylic acid) fibrous membranes","authors":"B. Ding, M. Kikuchi, M. Yamazaki, S. Shiratori","doi":"10.1109/ICSENS.2004.1426259","DOIUrl":"https://doi.org/10.1109/ICSENS.2004.1426259","url":null,"abstract":"A novel gas sensor composed of electrospun nanofibrous membranes (FM) and quartz crystal microbalance (QCM) was successfully fabricated. The electrospun nanofibers can be deposited on the QCM electrode by electrospinning the homogenous blend solutions of cross-linkable poly(acrylic acid) (PAA) and poly(vinyl alcohol) (PVA). Moreover, the PAA fibrous membranes with different morphology can be deposited on the QCM electrode by electrospinning the PAA solutions with various solvent compositions of H/sub 2/O and ethanol. Sensing experiments were examined by measuring the resonance frequency shifts of QCM due to the additional mass loading. The results showed that the sensing properties were mainly affected by the content of the PAA component in nanofibrous membranes, the morphology of the fibrous membranes, the concentration of NH/sub 3/, and the relative humidity. Additionally, the sensitivity of the FM coated QCM (FM-QCM) sensor was much higher than that of a continuous film coated QCM (CF-QCM) sensor. Furthermore, the PAA FM-QCM sensors exhibited high sensitivity towards low concentrations of ammonia, as low as 130 ppb at the relative humidity of 40 %. The pre-sorbed water in the fibrous membranes was proved to be the key factor affecting the sensitivity of FM-QCM sensors for ammonia.","PeriodicalId":20476,"journal":{"name":"Proceedings of IEEE Sensors, 2004.","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80501194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4