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# IEEE Sensors Journal

## Filter Results

Displaying Results 1 - 25 of 39
• ### Front Cover

Publication Year: 2012, Page(s): C1
| PDF (257 KB)

Publication Year: 2012, Page(s):2537 - 2538
| PDF (121 KB)
• ### Numerical Study on the Transient Response of a Condenser Microphone

Publication Year: 2012, Page(s):2539 - 2547
| | PDF (1020 KB) | HTML

The vibrating of a condenser microphone diaphragm due to incident pressure causes changes in the capacitance and the energy stored in the volume of the microphone. One of the most important parameters that must be determined very precisely for any microphone is the amount of this displacement due to the executed pressure on the diaphragm i.e., mechanical sensitivity. Thus, in this paper, the gener... View full abstract»

• ### Principal Component Analysis of Pulsed Eddy Current Response From Corrosion in Mild Steel

Publication Year: 2012, Page(s):2548 - 2553
Cited by:  Papers (22)
| | PDF (448 KB) | HTML

The effect of corrosion under coatings on carbon steel is a complex mix of many factors, including electrical conductivity, magnetic permeability, surface roughness, and coating thickness variations, which all have to be taken into account when analysing the pulsed eddy current (PEC) response from corrosion. In this paper, the PEC nondestructive evaluation method has been applied to a set of mild ... View full abstract»

• ### Hot Wire Needle Probe for In-Reactor Thermal Conductivity Measurement

Publication Year: 2012, Page(s):2554 - 2560
Cited by:  Papers (3)
| | PDF (750 KB) | HTML

Thermal conductivity is a key property that must be known for proper design, test, and application of new fuels and structural materials in nuclear reactors. Thermal conductivity is highly dependent on the physical structure, chemical composition, and the state of the material. Typically, thermal conductivity changes that occur during irradiation are measured out-of-pile using a “cook and l... View full abstract»

• ### High-Performance Ultraviolet Photodetector Based on Polycrystalline ${rm SrTiO}_{3}$ Thin Film

Publication Year: 2012, Page(s):2561 - 2564
Cited by:  Papers (6)
| | PDF (1367 KB) | HTML

SrTiO3 (STO) thin film has been fabricated on fused-quartz wafer by radio-frequency magnetron sputtering. The Ag interdigited electrodes were then evaporated on STO thin film in order to form the metal-insulator-metal photoconductive detector. Our photodetector exhibits a high photoresponse in the range of 225-340 nm with an ultraviolet-visible rejection ratio (R310 nm/R400 nm) of two o... View full abstract»

• ### Compact Submillimeter/Terahertz Gas Sensor With Efficient Gas Collection, Preconcentration, and ppt Sensitivity

Publication Year: 2012, Page(s):2565 - 2574
Cited by:  Papers (18)  |  Patents (3)
| | PDF (1824 KB) | HTML

Although heretofore unrealized, it has long been known the rotational fingerprints of gases that occupy the submillimeter/terahertz (SMM/THz) spectral region can provide a basis for analytical systems with unique gas detection, identification, and quantification capabilities. Among these capabilities are near absolute specificity, even in complex mixtures, quantitative analysis, and excellent sens... View full abstract»

• ### 60-GHz Near-Field Six-Port Microscope Using a Scanning Slit Probe for Subsurface Sensing

Publication Year: 2012, Page(s):2575 - 2576
Cited by:  Papers (8)
| | PDF (360 KB) | HTML

A new six-port based near-field millimeter-wave microscope using a scanning slit probe is proposed for subsurface sensing applications. The combination of a six-port reflectometer and a slit probe presents a viable and promising alternative to the costly heterodyne principle. The system presents advantages such as compactness, robustness, and low cost. To evaluate its performance, the spatial reso... View full abstract»

• ### Swarm Intelligence for Sensor Selection Problems

Publication Year: 2012, Page(s):2577 - 2585
Cited by:  Papers (6)
| | PDF (450 KB) | HTML

In this paper, we apply the binary particle swarm optimization to the problem of selecting sensors from a set of sensors for the purpose of minimizing the error in parameter estimation. The motivation of selecting sensors rather than utilizing all sensors includes computational efficiency of parameter estimation and also the efficiency of energy consumption of sensor operations. The computational ... View full abstract»

• ### Spectrum Reconstruction for On-Chip Spectrum Sensor Array Using a Novel Blind Nonuniformity Correction Method

Publication Year: 2012, Page(s):2586 - 2592
Cited by:  Papers (1)
| | PDF (841 KB) | HTML

Filter-array spectrum sensors have been a promising structure that can be used to realize miniature spectrometers or spectrometers on-a-chip. By using multiple spectrum sensors with different spectral responses, the spectrum of a measurement object can be characterized. However, due to the low-cost and miniature design of the input optic interfaces, the intensity of the input light shining onto th... View full abstract»

• ### Temperature Sensing Based on Ethanol-Filled Photonic Crystal Fiber Modal Interferometer

Publication Year: 2012, Page(s):2593 - 2597
Cited by:  Papers (16)
| | PDF (677 KB) | HTML

A modal interferometer made of a short ethanol-filled photonic crystal fiber (PCF) combined with a fully collapsed splicing with single-mode fibers (SMFs) is proposed for temperature measurement. Two fully collapsed splicing regions between the ethanol-filled PCF and SMFs excite and recombine two interfering modes in the ethanol-filled PCF. The interference spectrum of the ethanol-filled PCF is mo... View full abstract»

• ### Tapered Single-Mode Optical Fiber pH Sensor Based on Lossy Mode Resonances Generated by a Polymeric Thin-Film

Publication Year: 2012, Page(s):2598 - 2603
Cited by:  Papers (9)
| | PDF (773 KB) | HTML

Lossy mode resonances can be generated with certain polymeric nanostructures, such as those obtained with a multilayered assembly of poly(allylamine hydrochloride) and poly(acrylic acid). This coating is adsorbed by the electro-static self-assembly technique onto a tapered single-mode optical fiber, in order to evaluate its performance when detecting pH. According to the results reported in this p... View full abstract»

• ### Closed-Form Direction Finding Using Collocated but Orthogonally Oriented Higher Order Acoustic Sensors

Publication Year: 2012, Page(s):2604 - 2608
Cited by:  Papers (8)
| | PDF (334 KB) | HTML

This paper introduces new closed-form formulas to estimate an incident source's azimuth-elevation angle-of-arrival, for various combinations of higher order directional acoustic sensors, that are orthogonally oriented in a collocated triad. Also identified are the validity regions for un ambiguous estimation of the azimuth-elevation arrival-angle. These new direction-finding formulas may be used i... View full abstract»

• ### Micro-Optical Gyroscope Using a PANDA Ring Resonator

Publication Year: 2012, Page(s):2609 - 2613
Cited by:  Papers (4)
| | PDF (817 KB) | HTML

We propose a new system of a micro-optical gyroscope (MOG) using a micro-embedded system. This system is comprised of a modified add/drop filter known as a PANDA ring resonator, which can be applied to navigate the direction with 3-D axes. The optical total path length of a MOG has been expanded by mean of an enhanced ring or PANDA ears. Simulation results obtained have shown that the precision si... View full abstract»

• ### Temperature and Strain Independent Modal Interferometric Torsion Sensor Using Photonic Crystal Fiber

Publication Year: 2012, Page(s):2614 - 2615
Cited by:  Papers (7)
| | PDF (618 KB) | HTML

An all-fiber modal interferometric torsion sensor based on simple splicing configuration is presented wherein a photonic crystal fiber is spliced in between multimode fiber and single mode fiber. Appreciable torsion sensitivity of ~79.83 pm/° is obtained in the long dynamic range of 180°. It is also found that there is no effect of strain and temperature on torsion sensitivity in the... View full abstract»

• ### Sensing Capabilities Based on Dielectric Electro Active Polymers—Feasibility and Potential State-of-the-Art Application

Publication Year: 2012, Page(s):2616 - 2624
Cited by:  Papers (9)
| | PDF (984 KB) | HTML

This paper presents the work in the area of sensing, using smart materials, more specific dielectric electro active polymers (DEAPs). Sensing is one of the main trio-characteristics of DEAPs; the trio-formations as applicable uses are actuator, transducer, and finally sensor. It is noted that one of the main value propositions whenever DEAP material is used, is the dual characteristics as the sens... View full abstract»

• ### Temperature and Pore Size Dependence on the Sensitivity of a Hydrogen Sensor Based on Nanoporous Platinum Thin Films

Publication Year: 2012, Page(s):2625 - 2629
Cited by:  Papers (3)
| | PDF (4654 KB) | HTML

Nanoporous Pt thin films were prepared by co-sputtering Cu and Pt, followed by dealloying and coarsening. The size of the pores was controlled by the coarsening temperature. The nanoporous Pt thin films had pores ranging from a few nanometers to 35 nm. A resistance transient method was used to measure the sensitivity of these thin films in different hydrogen concentrations using air as the carrier... View full abstract»

• ### Performance of Wireless Chemical Sensor Network With Dynamic Collaboration

Publication Year: 2012, Page(s):2630 - 2637
Cited by:  Papers (2)
| | PDF (775 KB) | HTML

The chemical tracers dispersed by turbulent motion in the environment display rather complex and even chaotic properties. Meanwhile, chemical tracer detecting sensors with air sampling consume significant energy. Hazardous chemical releases are rare events. If all sensors in a wireless chemical sensor network (WCSN) are left in the active state continuously, it would result in significant power co... View full abstract»

• ### Synthesis and Application of New Porphyrin Derivatives for Preparation of Copper Selective Electrodes: Influence of Carbon Nanotube on Their Responses

Publication Year: 2012, Page(s):2638 - 2647
Cited by:  Papers (3)
| | PDF (486 KB) | HTML

The synthesis and characterization of 5-(4- benzylacrylamide)-10, 15, 20-tris(4-benzylamine)porphyrin ((BAmidBAmin)P) and poly[5-(4-benzylacrylamide)-10, 15, 20-tris(4-benzylamine)porphyrin] (P[(BAmidBAmin)P]) are reported in this paper. The techniques IR, 1 H-NMR, UV-Vis and elemental microanalysis were used to characterize the porphyrins. These new compounds were used to manufacture a new carbon... View full abstract»

• ### Non-Mechanical Dual-Axis Scanning Laser Doppler Velocimeter

Publication Year: 2012, Page(s):2648 - 2652
Cited by:  Papers (3)
| | PDF (310 KB) | HTML

A dual-axis scanning laser Doppler velocimeter (LDV) without any moving mechanism in its sensor probe is proposed. In this LDV, the measurement position is scanned in both axial and transversal directions with one probe. The direction of the scan is changed by changing the polarization of the beam input to the probe. The results of the experiment using a setup of the sensor probe consisting of bul... View full abstract»

• ### Tilted $c$-Axis Thin-Film Bulk Wave Resonant Pressure Sensors With Improved Sensitivity

Publication Year: 2012, Page(s):2653 - 2654
Cited by:  Papers (4)
| | PDF (249 KB) | HTML

Aluminum nitride thin-film bulk wave resonant pressure sensors employing c- and tilted c-axis texture, have been fabricated and tested for their pressure sensitivities. The c-axis tilted film bulk acoustic resonators pressure sensors demonstrate substantially higher-pressure sensitivity compared to its c-axis oriented counterpart. More specifically, the thickness plate ... View full abstract»

• ### Non-Uniformly Tiled CMOS Image Sensors for Efficient On-Chip Image Compression

Publication Year: 2012, Page(s):2655 - 2663
Cited by:  Papers (6)
| | PDF (932 KB) | HTML

We present a complementary metal-oxide semiconductor (CMOS) image sensor with non-uniform pixel placement that enables a highly efficient calculation of the discrete cosine transform (DCT), which is the most mathematically intensive step of an image compression algorithm. This technique is based on the arithmetic Fourier transform (AFT), which has been shown to be five times more computationally e... View full abstract»

• ### Potential Sensor Based on Electrochemical ${rm NiFe}_{2}{rm O}_{4}$ Film Prepared by EB-PVD

Publication Year: 2012, Page(s):2664 - 2665
Cited by:  Papers (2)
| | PDF (267 KB) | HTML

The potential sensor is the key element and the major obstacle to realizing corrosion monitoring and control of the infrastructures in civil engineering. A novel solid-state potential sensor is prepared by the electron-beam physical vapor deposition technique. The phase composition of the oxidation film is investigated by X-ray diffraction. Also, the montmorillonite material with three-dimensional... View full abstract»

• ### Deflection Sensitivity Calibration of Heated Microcantilevers Using Pseudo-Gratings

Publication Year: 2012, Page(s):2666 - 2667
| | PDF (265 KB) | HTML

We report a technique to calibrate the sensitivity of sensor-integrated atomic force microscope cantilevers using pseudo-gratings. An offset signal superposed onto the cantilever control signal modulates the cantilever position over a flat surface, driving the cantilever toward and away from the surface in a controlled way. The relationship between the cantilever sensor signal and displacement pro... View full abstract»

• ### Assessment of an LPG mPOF for Strain Sensing

Publication Year: 2012, Page(s):2668 - 2673
Cited by:  Papers (5)
| | PDF (642 KB) | HTML

We demonstrate the feasibility of long-period gratings (LPGs) written in microstructured polymer optical fibers (mPOFs) for detecting and measuring the strain rate and magnitude of engineering structures. We validate and compare the results of our experimental tests to a commercial fiber Bragg grating sensor. The encouraging results open the way to the use of LPG mPOF sensors in structural health ... View full abstract»

## Aims & Scope

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

Full Aims & Scope

## Meet Our Editors

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