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IEEE Sensors Journal

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• [Front cover]

Publication Year: 2012, Page(s): C1
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• IEEE Sensors Journal publication information

Publication Year: 2012, Page(s): C2
| PDF (129 KB)

Publication Year: 2012, Page(s):2729 - 2730
| PDF (123 KB)

Publication Year: 2012, Page(s):2731 - 2732
| PDF (103 KB)
• Microfluidic Platform for Electrical Monitoring of Enzyme Activity

Publication Year: 2012, Page(s):2733 - 2734
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In this letter, we present a scalable method based on the use of microfluidics and electrical conductivity measurement for monitoring the activity of an enzyme. This scalable method can be used for drug screening to test for the ability of an organic small molecule to inhibit the activity of an enzyme. Our method involves the use of electrodes integrated in a microchannel for the measurement of co... View full abstract»

• Rapid and Sensitive Detection of Malaria Antigen in Human Blood With Lab-on-a-Chip

Publication Year: 2012, Page(s):2735 - 2736
Cited by:  Papers (2)
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A novel lab-on-a-chip detection device, based on the properties of immunoagglutination, was modified to detect malaria in the human blood through histidine-rich protein 2, an antigen expressed only by Plasmodium falciparum. Utilizing Mie scattering detection, which is angle- and size-dependent, the extent of immunoagglutination could be accurately measured while the optical disturbance from the hu... View full abstract»

• Optical Fiber Bus Protection Network to Multiplex Sensors: Experimental Validation of Self-Diagnosis

Publication Year: 2012, Page(s):2737 - 2743
Cited by:  Papers (3)
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The experimental demonstration of a resilient wavelength division multiplexed fiber bus network to interconnect sensors is reported. The network recovers operation after failures and it performs “self-diagnosis,” the identification of the failed constituent(s) from the patterns of surviving end-to-end connections at its operating wavelengths. We provide clear evidence for the channel... View full abstract»

• High-Speed Imaging of 2-D Ionic Diffusion Using a 16$,times,$16 Pixel CMOS ISFET Array on the Microfluidic Scale

Publication Year: 2012, Page(s):2744 - 2749
Cited by:  Papers (8)
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We present an electrochemical high-speed measurement for direct observation of the mixing of ions in solution over a sensor surface. The method is applied to the determination of time-varying mixing and diffusion rates in microfluidic systems. The system generates high-speed videos of the analytes under investigation as they mix, without the need for any preliminary staining or labeling and has a ... View full abstract»

• Fiber-Optic Two-Photon Fluorescence Correlation Spectroscopy for Cell Flow Measurements

Publication Year: 2012, Page(s):2750 - 2755
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Quantification of sampled blood volume is important in rare circulating cell detection. A sensitive double-clad fiber probe is utilized for in situ blood flow velocity measurements and cell size analysis by means of two-photon excited fluorescence correlation spectroscopy (FCS). The ability to measure flow velocities of fluorescently labeled cells in whole blood has been demonstrated. By simultane... View full abstract»

• Design and Development of a Novel Passive Wireless Ultrasensitive RF Temperature Transducer for Remote Sensing

Publication Year: 2012, Page(s):2756 - 2766
Cited by:  Papers (13)
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A wireless, passive, and ultrasensitive temperature transducer is presented in this paper. The transducer consists of split ring resonators loaded with micro-bimorph cantilevers, which can potentially operate up to millimeter-wave frequencies (above 30 GHz). As the temperature changes, the bimorph cantilevers deflect and result in a shift of the resonant frequency of the split rings. A design is p... View full abstract»

• Raw Material Classification by Means of Hyperspectral Imaging and Hierarchical Temporal Memories

Publication Year: 2012, Page(s):2767 - 2775
Cited by:  Papers (2)  |  Patents (1)
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The recently proposed hierarchical temporal memory (HTM) paradigm of soft computing is applied to the detection and classification of foreign materials in a conveyor belt carrying tobacco leaves in a cigarette manufacturing industry. The HTM has been exposed to hyperspectral imaging data from 10 types of unwanted materials intermingled with tobacco leaves. The impact of the HTM architecture and th... View full abstract»

• Investigation of Dispersion and Nonlinear Effects in Silicon Nanocrystal Slot Waveguides for Surface Optical Sensing

Publication Year: 2012, Page(s):2776 - 2783
Cited by:  Papers (2)
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In this paper, an investigation of silicon nanocrystals-based sandwiched slot waveguides which are dispersion engineered for exciting optical solitons inside very short structures (only 3 mm long) is proposed. The possibility of using these structures for efficient surface sensing devices has been explored for the first time in cases of either air or water solution cover. View full abstract»

• Source Information Estimation Using Enemy's Single-Ping and Geographic Information in Non-cooperative Bistatic Sonar

Publication Year: 2012, Page(s):2784 - 2790
Cited by:  Papers (2)
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Bistatic sonar operations on modern submarines are classified into cooperative and non-cooperative operations. In the cooperative operation, an active signal of a friendly ship is used and the source information is known a priori. In the non-cooperative operation, an active signal of the enemy is used, which makes it difficult to acquire the source information. The source information consists of t... View full abstract»

• Detection of Fluorophore-Tagged Recombinant Bovine Somatotropin (rbST) by Using a Silica-on-Silicon (SOS)-PDMS Lab-on-a-Chip

Publication Year: 2012, Page(s):2791 - 2798
Cited by:  Papers (5)
| | PDF (1035 KB) | HTML

The presence of potentially harmful substances in milk is a concern for consumers. The discovery of recombinant DNA technology allowed the production of large quantities of recombinant bovine somatotropin (rbST), which is allowed to be used to increase milk and meat production in many countries. The use of rbST is controversial because of its potential effects on animal and human health. Use of th... View full abstract»

• Enhanced Correlation Estimators for Distributed Source Coding in Large Wireless Sensor Networks

Publication Year: 2012, Page(s):2799 - 2806
Cited by:  Papers (12)
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In this paper, we propose two estimators based on correlation parameters for the two key steps of a practical distributed source coding (DSC) scheme, namely: 1) the computation of the side-information at the receiver side and 2) the estimation of the required number of bits to compress the readings in order to guarantee a certain symbol error probability. We show that using the proposed estimators... View full abstract»

• Correlator Implementation for Orthogonal CSS Used in an Ultrasonic LPS

Publication Year: 2012, Page(s):2807 - 2816
Cited by:  Papers (7)  |  Patents (2)
| | PDF (1725 KB) | HTML

This paper presents a new architecture for the correlation of orthogonal complementary sets of sequences (OCSS) and their performance in an ultrasonic local positioning system (U-LPS). OCSS are sets of sequences whose addition of correlation functions has ideal properties, that makes interference-free code-division multiple access (CDMA) possible. They can be used to encode the signals emitted by ... View full abstract»

• Surface Modified ${rm CaTiO}_{3}$ Loaded in Polyaniline by Sodium Dodecyl Benzene Sulphonic Acid for Humidity Sensor

Publication Year: 2012, Page(s):2817 - 2823
Cited by:  Papers (12)
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Polyaniline-CaTiO3 nanocomposites with their various weight percentages were prepared by chemical oxidative in situ polymerization technique. The prepared composites were characterized by Fourier transform infrared spectroscopy, scanning electronic microscope, and X-ray diffraction. The temperature-dependent dc conductivity of polyaniline-CaTiO3 nanocomposite was studied with... View full abstract»

• Low-Frequency Noise Characteristics of GaN Schottky Barrier Photodetectors Prepared With Nickel Annealing

Publication Year: 2012, Page(s):2824 - 2829
Cited by:  Papers (1)
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In this paper, GaN Schottky barrier photodetectors (PDs) prepared with and without Ni treatment were fabricated. I-V and noise characteristics of these devices were then investigated. Comparing the GaN PDs with and without Ni treatment, it was found that GaN PDs prepared with Ni treatment can not only reduce dark current, but also enhance the UV-to-Vis rejection ratio. With an applied bias of -2 V... View full abstract»

• Electro-Thermal MEMS Switch With Latching Mechanism: Design and Characterization

Publication Year: 2012, Page(s):2830 - 2838
Cited by:  Papers (8)
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This paper presents the design, fabrication, and characterization of a proprietary metallic microelectromechanical systems switch with unique latching and switching mechanisms that are driven electro-thermally by a set of V-shaped actuators (VSA) and modified Guckel U-shaped actuators. These distinctive actuators are specifically designed and uniquely integrated to provide desired large in-plane t... View full abstract»

• Application of an Optical Fiber Sensor on the Determination of Sucrose and Ethanol Concentrations in Process Streams and Effluents of Sugarcane Bioethanol Industry

Publication Year: 2012, Page(s):2839 - 2843
Cited by:  Papers (2)
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In this paper, the measurement of process streams and effluents from the sugar-ethanol industry using an optical fiber sensor based on the Fresnel reflection principle is reported. Firstly, binary sucrose-water and ethanol-water solutions with predetermined concentrations were measured for calibration purposes. Secondly, the coproducts from various processing stages were analyzed in order to ident... View full abstract»

• Flexible UHF Resistive Humidity Sensors Based on Carbon Nanotubes

Publication Year: 2012, Page(s):2844 - 2850
Cited by:  Papers (5)
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This paper presents the investigation of the resistive humidity-sensing properties of multi-walled carbon nanotubes (MWCNTs). MWCNTs functionalized by acid treatment (f-MWCNTs) exhibit rather high sensitivity in resistance toward humidity, owing to the presence of carboxylic groups on the nanotube surface. By integrating the f-MWCNTs resistor into a wireless sensor platform, flexible humidity sens... View full abstract»

• Humidity Sensing by Polymer-Loaded UHF RFID Antennas

Publication Year: 2012, Page(s):2851 - 2858
Cited by:  Papers (21)
| | PDF (1698 KB) | HTML

Passive ultra high-frequency radio frequency identification tags, besides item labeling, are also able to exploit capability to sense the physical state of the tagged object as well as of the surrounding environment. Here, a new family of polymer-doped tags are proposed and fully characterized for the detection of ambient humidity. A sensitive chemical species based on PEDOT:PSS is used to load a ... View full abstract»

• High Definition Image Pre-Processing System for Multi-Stripe Satellites' Image Sensors

Publication Year: 2012, Page(s):2859 - 2865
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High-resolution image sensors play an important role in today's satellites' remote sensing applications. This paper presents an image recombination and processing system for one-dimensional multi-strip complementary metal-oxide semiconductor image sensors (CISs.) The proposed system takes advantage of the satellites' linear moving property to control the exposure time of CIS and provides the real-... View full abstract»

• Data Integration Method for Multipath Ultrasonic Flowmeter

Publication Year: 2012, Page(s):2866 - 2874
Cited by:  Papers (5)
| | PDF (1106 KB) | HTML

Compared to ultrasonic flowmeters with a single sound path, multipath ultrasonic flowmeters are capable of providing more accurate mean flow velocities on a cross-section of a pipe. This is accomplished by integrating the flow velocities derived from the measurements on multiple sound paths. In this paper, we proposed a data fusion based integration method to obtain the estimation of flow velociti... View full abstract»

• Quasi-Distributed IFPI Sensing System Demultiplexed With FFT-Based Wavelength Tracking Method

Publication Year: 2012, Page(s):2875 - 2880
Cited by:  Papers (2)
| | PDF (507 KB) | HTML

In this paper, we fabricated a quasi-distributed intrinsic Fabry-Perot interferometric (IFPI) sensing array with the femtosecond laser. Each IFPI sensor is constituted by a pair of laser-induced internal reflectors and has a different cavity length. After multiplexing, IFPI sensors can be distinguished in the frequency domain for their different free spectral ranges. Next, a fast-Fourier-transform... View full abstract»

Aims & Scope

The IEEE Sensors Journal is a peer-reviewed, semi-monthly online journal devoted to sensors and sensing phenomena.

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Meet Our Editors

Editor-in-Chief
Krikor Ozanyan
University of Manchester
Manchester, M13 9PL, U.K.