# IEEE Sensors Journal

## Filter Results

Displaying Results 1 - 25 of 34
• ### Table of contents

Publication Year: 2007, Page(s): C1
| PDF (106 KB)
• ### IEEE Sensors Journal publication information

Publication Year: 2007, Page(s): C2
| PDF (36 KB)
• ### Table of contents

Publication Year: 2007, Page(s):313 - 314
| PDF (46 KB)
• ### Search Strategy Optimization for Intruder Detection

Publication Year: 2007, Page(s):315 - 316
Cited by:  Papers (1)
| | PDF (95 KB) | HTML

Sensors can take advantage of environmental information to sweep for a moving intruder in a manner that will look random to an intruder, but that will maximize the probability of detection. We show how likelihood information about intrusion from particular sectors can be used to design a sweep strategy View full abstract»

• ### Photonic Demodulator With Sensitivity Control

Publication Year: 2007, Page(s):317 - 318
Cited by:  Papers (11)  |  Patents (5)
| | PDF (511 KB) | HTML

A current assisted photonic demodulator for use as a pixel in a 3-D time-of-flight imager shows nearly 100% static demodulator contrast and is operable beyond 30 MHz. An integrated tunable sensitivity control is also presented for increasing the distance measurement range and avoiding unwanted saturation during integration periods. This is achieved by application of a voltage on a dedicated drain ... View full abstract»

• ### Using Environmental Models to Optimize Sensor Placement

Publication Year: 2007, Page(s):319 - 320
Cited by:  Papers (10)
| | PDF (130 KB) | HTML

Sensors used in protective applications are conventionally placed on perimeters or over areas in an evenly distributed pattern. However, such patterns may actually be suboptimal, since environmental factors may make some forms of attack more or less likely than others. We describe a protective application of sensors for detecting underwater threats in an urban estuary environment. We demonstrate t... View full abstract»

• ### Dual-Channel Quartz-Crystal Microbalance for Sensing Under UV Radiation

Publication Year: 2007, Page(s):321 - 322
Cited by:  Papers (2)
| | PDF (367 KB) | HTML

In situ measurements of interfacial phenomena with subatomic resolution under environmental disturbances have been a major goal of engineers and scientists engaged in the development of a microbalance sensor. Here, we demonstrate in situ measurements of the photooxidization process of alkanethiol self-assembled monolayers using dual-channel quartz-crystal microbalance (D-QCM) sensor that uses sphe... View full abstract»

• ### Sol-Gel Synthesis of Palladium-Doped Silica Nanocomposite Fiber Using Triton X-100 Micelle Template and the Application for Hydrogen Gas Sensing

Publication Year: 2007, Page(s):323 - 328
Cited by:  Papers (6)
| | PDF (1485 KB) | HTML

Palladium-doped silica nanocomposites were synthesized via a sol-gel technique combined with a template of Triton X-100 micelle. The freshly prepared sol sample of Pd-doped silica nanocomposites was investigated by TEM. Determined from the TEM image, the sizes of the Pd nanoparticles are narrowly distributed, which are around 30 nm in diameter. The prepared sol solution of the sample was injected ... View full abstract»

• ### Solvent Detection and Water Monitoring With a Macroporous Silicon Field-Effect Sensor

Publication Year: 2007, Page(s):329 - 335
Cited by:  Papers (10)
| | PDF (1221 KB) | HTML

Integration of electrical and fluidic systems for the design and fabrication of a system-on-chip (SOC) capable of sensing various liquid phase solvents is reported. A monolithic integration strategy makes use of macroporous silicon (MPS) as a gateway to interface the electrical and fluidic domains. In this application, the MPS material, acting as a sensing membrane, is used in a flow-through struc... View full abstract»

• ### Numerical Development of ZnO/Quartz Love Wave Structure for Gas Contamination Detection

Publication Year: 2007, Page(s):336 - 341
Cited by:  Papers (7)
| | PDF (220 KB) | HTML

Love wave structures are encouraging devices for sensing applications in gaseous or liquid media because of their high sensitivity. In this paper, we first investigate basic properties of a ZnO/quartz Love wave device by the use of theoretical considerations in order to get a good gas sensor. Second, experimental results of the developed structure, ZnO(2.1 mum)/90deg ST-cut quartz, confirm the sui... View full abstract»

• ### 2-D Wavelet Segmentation in 3-D T-Ray Tomography

Publication Year: 2007, Page(s):342 - 343
Cited by:  Papers (19)
| | PDF (284 KB) | HTML

In this letter, segmentation techniques for terahertz (T-ray) computed tomographic (CT) imaging are investigated. A set of linear image fusion and novel wavelet scale correlation segmentation techniques is adopted to achieve material discrimination within a 3-D object. The methods are applied to a T-ray CT image dataset taken from a plastic vial containing a plastic tube. This setup simulates the ... View full abstract»

• ### Calibration of Multi-Axis MEMS Force Sensors Using the Shape-From-Motion Method

Publication Year: 2007, Page(s):344 - 351
Cited by:  Papers (33)
| | PDF (949 KB) | HTML

Precise calibration of multi-axis microelectromechanical systems (MEMS) force sensors is difficult for several reasons, including the need to apply many known force vectors at precise orientations at the micro- and nanoNewton (nN) force scales, and the risk of damaging the small, fragile microdevices. To tackle these challenges, this paper introduces the shape-from-motion calibration method. A new... View full abstract»

• ### Measurements of the Degree of Comprehensive Cooling in Stochastically Quenched Microstructures

Publication Year: 2007, Page(s):352 - 360
Cited by:  Papers (1)
| | PDF (2421 KB) | HTML

We clarify the atomistic behavior of a micromechanical structure whose thermally driven stochastic motion has been quenched, using force-feedback techniques. The quenching is observed, via both qualitative and quantitative measurements, to optically clamp one of the vibrational modes of the lever such that the overall body temperature is only reduced slightly. The degree of comprehensive cooling i... View full abstract»

• ### Biomimetic Sonar and Neuromorphic Processing Eliminate Reverberation Artifacts

Publication Year: 2007, Page(s):361 - 369
Cited by:  Papers (16)
| | PDF (1174 KB) | HTML

A biomimetic sonar is configured using two conventional sensors that generate point processes related to echo waveform intensity, resembling biological action potential spikes. The sensors point slightly outward from the sonar axis, similar to pinnae in some bats, to acquire slightly different views of the environment during a rotational scan. Artifacts in sonar maps are points that do not relate ... View full abstract»

• ### Nonlinear Dynamic Analysis of Electrostatically Actuated Resonant MEMS Sensors Under Parametric Excitation

Publication Year: 2007, Page(s):370 - 380
Cited by:  Papers (64)  |  Patents (9)
| | PDF (1190 KB) | HTML

Electrostatically actuated resonant microelectromechanical systems (MEMS) sensors have gotten significant attention due to their geometric simplicity and broad applicability. In this paper, nonlinear responses and dynamics of the electrostatically actuated MEMS resonant sensors under two-frequency parametric and external excitations are presented. The presented model and methodology enable simulat... View full abstract»

• ### Analysis of Nonideal Effects on a Tomography-Based Switched-Capacitor Transducer

Publication Year: 2007, Page(s):381 - 391
Cited by:  Papers (5)
| | PDF (872 KB) | HTML

This paper presents a nonideal analysis of a fully-integrated switched-capacitor capacitive transducer for electrical capacitance tomography system. The investigation establishes different types of error source models as well as practical mismatch effects in the derivation of second-order analytical expressions. The analyses are conducted on the basis of heavy stray capacitances of 150 pF typicall... View full abstract»

• ### Optimal Estimation of the Acceleration of a Car Under Performance Tests

Publication Year: 2007, Page(s):392 - 400
Cited by:  Papers (7)
| | PDF (787 KB) | HTML

In this paper, a recursive least-squares lattice (RLSL) adaptive filter was used to carry out the optimal estimation of the relevant signal coming from an accelerometer placed in car under performance tests. Here, the signal of interest is buried in a broadband noise background where we have little knowledge of the noise characteristics. In addition, due to the fact that the noise and the relevant... View full abstract»

• ### A Novel Needle-Type SV-GMR Sensor for Biomedical Applications

Publication Year: 2007, Page(s):401 - 408
Cited by:  Papers (20)
| | PDF (1676 KB) | HTML

Cancer is the most deadly disease in the world today. There is a variety of different treatment methods for cancer, including radiotherapy and chemotherapy with anticancer drugs that have been in use over a long period of time. Hyperthermia is one of the cancer treatment methods that utilizes the property that cancer cells are more sensitive to temperature than normal cells. The control of tempera... View full abstract»

• ### Agarose-Gel Based Guided-Mode Resonance Humidity Sensor

Publication Year: 2007, Page(s):409 - 414
Cited by:  Papers (18)  |  Patents (2)
| | PDF (367 KB) | HTML

A photonic relative-humidity (RH) sensor employing the guided-mode resonance effect is designed, fabricated, and characterized. An agarose-gel transduction layer is integrated with a periodic silicon-nitride film to form a sensitive optical resonance structure. As the agarose-gel humidifies, the resonance wavelength shifts. Comparison with rigorous diffraction models allows quantification of the g... View full abstract»

• ### Detection of Chemiluminescence Using an Amorphous Silicon Photodiode

Publication Year: 2007, Page(s):415 - 416
Cited by:  Papers (28)
| | PDF (166 KB) | HTML

A hydrogenated amorphous silicon photodiode is used for the integrated, real-time detection of chemiluminescent reactions in solution. The light emission at 425 nm, resulting from the horseradish peroxidase-catalyzed oxidation of luminol, is detected by a p-i-n amorphous silicon photodiode operated at zero bias. The sensitivity achieved is in the range of nanomole of horseradish peroxidase per lit... View full abstract»

• ### An Optical Thermometer Exploiting Periodically Poled Lithium Niobate for Monitoring the Pantographs of High-Speed Trains

Publication Year: 2007, Page(s):417 - 425
Cited by:  Papers (2)
| | PDF (950 KB) | HTML

Optical thermometers have been widely investigated. Here, the temperature behavior of second harmonic generation (SHG) in periodically poled lithium niobate (PPLN) substrates is analyzed; indeed, the QPM tuning in PPLN devices and the obtained SHG efficiency depend on the crystal thermal expansion and dispersion, particularly in the case of guided propagation. Therefore, such devices are suitable ... View full abstract»

• ### A Multimodal Tomography System Based on ECT Sensors

Publication Year: 2007, Page(s):426 - 433
Cited by:  Papers (44)  |  Patents (3)
| | PDF (993 KB) | HTML

A new noninvasive system for multimodal electrical tomography based on electrical capacitance tomography (ECT) sensor hardware is proposed. Quasistatic electromagnetic fields are produced by ECT sensors and used for interrogating the sensing domain. The new system is noninvasive and based on capacitance measurements for permittivity and power balance measurements for conductivity (impedance) imagi... View full abstract»

• ### Ammonia Sensing Resistors Based on ${\rm Fe}_{2}{\rm O}_{3}$-Modified ZnO Thick Films

Publication Year: 2007, Page(s):434 - 439
Cited by:  Papers (15)
| | PDF (1242 KB) | HTML

Thick films of ZnO were prepared by a screen printing technique. Unmodified ZnO thick film was almost insensitive to NH3. ZnO thick films were surface modified with Fe3+ by dipping them into an aqueous solution of ammonium ferric sulfate for different intervals of time and fired at 500degC for 24 h. The ammonium ferric sulfate would transform into ferric oxide Fe2O... View full abstract»

• ### On-Chip Capacitance Sensing for Cell Monitoring Applications

Publication Year: 2007, Page(s):440 - 447
Cited by:  Papers (51)  |  Patents (3)
| | PDF (1921 KB) | HTML

We describe an integrated circuit for sensing the substrate coupling capacitance of anchorage-dependent living cells in a standard culture environment. Capacitance is measured using charge redistribution in response to weak, low frequency electric field excitations. The underlying biophysical phenomenon results primarily from the insulating nature of the cell structure and the counterionic polariz... View full abstract»

• ### Low–Temperature Hydrogen Sensors Based on Au Nanoclusters and Schottky Contacts on ZnO Films Deposited by Pulsed Laser Deposition on Si and ${\hbox{SiO}}_{2}$ Substrates

Publication Year: 2007, Page(s):448 - 454
Cited by:  Papers (22)
| | PDF (1609 KB) | HTML

Unintentionally doped n-type ZnO thin films deposited on Si and SiO2 substrates by pulsed laser deposition (PLD) techniques, were functionalized as H2 gas sensors by a) incorporating Au nanoclusters in the surface, and b) developing Au Schottky diodes on ZnO. The influence of the catalytic action of the Au nanoclusters on the sensing properties of the devices was examined and... 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
Sandro Carrara
École Polytechnique Fédérale de Lausanne (EPFL)
Lausanne, CH-1015 Switzerland
sandro.carrara@epfl.ch