VOLUME 1 , ISSUE 2 (June 2008) - List of articles

Sort by

EVOLUTION OF A SUITE OF SMART MILLIMETRE WAVE RADAR SYSTEMS FOR SITUATIONAL AWARENESS AND
AUTOMATION IN MINES

Graham Brooker/ Mark Bishop/ Ross Hennessy

This paper defines the issues required for the development of successful visualisation sensors for use in open cut and underground mines. It examines the mine environment and considers both the reflectivity of the rock and attenuation effects of dust and water droplets. Millimetre wave technology, as an alternative to the more commonly used laser and sonar implementations, is selected due to its superior penetration through adverse atmospheric conditions. Of the available radar techniques, frequ(..)

DOI: 10.21307/ijssis-2017-293

REFRACTIVE INDEX SENSITIVITY IN THINNED UV AND ARC INDUCED LONG-PERIOD GRATINGS:
A COMPARATIVE STUDY

A. Iadicicco/ S. Campopiano/ A. Cutolo/ M.L. Korwin-Pawlowski/ W.J. Bock/ A. Cusano

In this work, a comparative study aimed to investigate the effects of cladding stripping on the external refractive index sensitivity in tapered and UV long period gratings is presented. Here, wet chemical etching combined with microscopic analysis allow us to identify the experimental dependence of the surrounding refractive index (SRI) sensitivity on the cladding radius for both grating types. The experimental results reveal that although in both cases a sensitivity enhancement is achieved by (..)

DOI: 10.21307/ijssis-2017-294

EVOLUTIONAL PROCESS OF PAVEMENT ROUGHNESS EVALUATION BENEFITING FROM SENSOR TECHNOLOGY

Andreas Loizos/ Christina Plati

The present paper deals with a view of the availability of high-speed sensor profilers, which has given dramatically increased possibilities to analyze imperfections in pavement surfaces such as roughness. Technical parameters of such profilers, for sensing and analyzing pavement surface profile are described. In addition, the main investigation concentrates on the evolutional process of pavement roughness evaluation. For this purpose a high-speed laser profiler is used to sense roughness data o(..)

DOI: 10.21307/ijssis-2017-295

MEASURING FLOW PARAMETERS OF PARTICULATE AND POWDERY SOLIDS IN INDUSTRIAL TRANSPORTATION PROCESSES

A. Fuchs/ H. Zangl

This paper provides an overview of existing technologies to measure flow parameters, such as material velocity and material concentration, in industrial transportation processes of particulate and powdery solids with a focus on pneumatic conveying. Restrictions, advantages and drawbacks of state of the art measurement principles are discussed. We show that capacitance-based sensing with suitable electrode topology allows for non-invasive, low-cost determination of flow parameters. Two industrial(..)

DOI: 10.21307/ijssis-2017-296

MODEL ORDER SELECTION CRITERION FOR MONITORING HAEMOGLOBIN STATUS IN DENGUE PATIENTS USING ARMAX MODEL

H. Abdul Rahim/ F. Ibrahim/ M. N. Taib/ R. Abdul Rahim/ Y.Mad Sam

This paper describes the development of linear autoregressive moving average with exogenous input (ARMAX) models to monitor the progression of dengue infection based on hemoglobin status. Three differents ARMAX model order selection criteria namely Final Prediction Error (FPE), Akaike’s Information Criteria (AIC) and Lipschitz number have been evaluated and analyzed. The results showed that Lipschitz number has better accuracy compared to FPE and AIC. Finally based on Lipschitz number, appropria(..)

DOI: 10.21307/ijssis-2017-297

INTELLIGENT STRUCTURAL ELEMENTS COVERED BY PIEZOELECTRIC HIGH-POLYMER FILM

Eiji Matsumoto/ Yuji Komagome

If a piezoelectric material is deformed, the local electric field is caused by the electromechanical interaction. When a structural element with surface defects is subjected to the stress, the strain distribution appears also on the opposite surface to the defects. Such localized strain distribution can be measured by the electric potential distribution on a piezoelectric film mounted on the smooth surface. This paper shows that back-surface defects in typical structural elements can be visualiz(..)

DOI: 10.21307/ijssis-2017-298

Nanocrystalline ZnO based MEMS Gas Sensors with CMOS ASIC for Mining Applications

N.P Futane/ P. Bhattacharyya/ S. Barma/ C. Roychaudhuri/ H. Saha

In this paper a nanocrystalline (nc) zinc oxide based hybrid gas sensor with signal conditioning ASIC has been reported for sensing and transmitting the information about methane concentration from the underground coalmine environment. A low power, low temperature nc zinc oxide MEMS based gas sensor has been designed, fabricated and tested for the purpose with a power consumption of ~70mW and sensitivity of 76.6 % at 1.0% methane concentration at a sensor operating temperature of 1500C. For tran(..)

DOI: 10.21307/ijssis-2017-299

Intelligent Method of Teaching Electromagnetics Theory: Measurements under Virtual Environment

S. C. Mukhopadhyay/ G. Sen Gupta/ S. Demidenko

This paper details the development of a computer-assisted laboratory under virtual environ-ment which has been put in place to teach the theoretical and practical aspects of Electromagnetics, with-out physically using any instruments to do the measurements. The virtual laboratory has allowed us to teach Electromagnetics in a new and effective way, helping our students master this difficult subject. In particular, virtual experiments have been designed which the students perform before attempting(..)

DOI: 10.21307/ijssis-2017-300

A BROADBAND SPECTROSCOPIC SENSOR PROBE

I M Woodhead/ I Platt/ J H Christie/ S Krenek

The electrical properties of many materials are closely related to their composition and to their moisture content in particular. For sensor development, characterising the response of a particular volume of material over a broad frequency range is desirable, since separate measurements could generate errors due to spatial variability. A coaxial probe has been designed for measurement of the permittivity of smooth and flat, solid or liquid samples over the frequency range from 1 Hz to 6 GHz. Alt(..)

DOI: 10.21307/ijssis-2017-301

Electrical Impedance Response of a Thick-Thin film Hybrid Anodic Nanoporous Alumina Sensor to Methanol Vapors.

Christopher Radzik/ G. Martin Kocanda/ Michael Haji-Sheikh/ David S.Ballantine

The response of an anodic aluminum oxide (AAO) nanoporous humidity sensor to an organic vapor such as methanol is presented in this paper. Sensors constructed at Northern Illinois University were exposed to various organic vapors. The characteristic response of the sensor to various vapor dilutions was analyzed using real and complex impedance parameters.

DOI: 10.21307/ijssis-2017-302

A DESIGN ANALYSIS OF MICROMIRRORS IN STACKED CONFIGURATIONS WITH MOVING ELECTRODES

Sangtak Park/ So-Ra Chung/ John T.W. Yeow

Micromirrors fabricated by MEMS technology have demonstrated to be important sensing or actuating components in many industrial and biomedical applications such as laser scanning displays, optical switch matrices, and biomedical imaging systems. In this paper, various actuation mechanisms for micromirrors are described. A new geometric configuration of a stacked micromirror that is actuated by electrostatic force is proposed and analyzed to show its superior performance in terms of deflection an(..)

DOI: 10.21307/ijssis-2017-303

A NOVEL METHOD FOR THE IMPROVEMENT IN THERMOELECTRIC PROPERTY OF TIN OXIDE THIN FILMS AND ITS APPLICATION IN GAS SENSING

Anuradha S/ K. Rajanna

Tin oxide thin film deposited on to glass substrates by the process of DC reactive magnetron sputtering has been used in our work. These films were characterized for their thermoelectric behavior. Further, a novel method has been developed to enhance the Seebeck coefficient of these films. Prior to the oxide film deposition on the glass substrate, thin metal films have been deposited at the two ends of the sample. High conductivity metals such as chromium, silver and copper were used for this pu(..)

DOI: 10.21307/ijssis-2017-304

AUTOMATIC ADJUSTMENT FOR LASER SYSTEMS USING A STOCHASTIC BINARY SEARCH ALGORITHM
TO COPE WITH NOISY SENSING DATA

Hirokazu Nosato/ Nobuharu Murata/ Tatsumi Furuya/ Masahiro Murakawa

For laser systems, the adjustment of the optical axes is crucial. However, it is difficult for conventional methods to adjust the optical axes because they require high-precision positioning with μm resolutions and because laser systems have many adjustment points that have an interdependent relationship. We have proposed an automatic adjustment method using genetic algorithms to overcome this problem. However, there are still two problems that need to be solved: (1) long adjustment times, and ((..)

DOI: 10.21307/ijssis-2017-305

ENHANCED RSSI-BASED HIGH ACCURACY REAL-TIME USER LOCATION TRACKING SYSTEM FOR INDOOR AND OUTDOOR ENVIRONMENTS

Erin-Ee-Lin Lau/ Boon-Giin Lee/ Seung-Chul Lee/ Wan-Young Chung

Existing researches on location tracking focus either entirely on indoor or entirely on outdoor by using different devices and techniques. Several solutions have been proposed to adopt a single location sensing technology that fits in both situations. This paper aims to track a user position in both indoor and outdoor environments by using a single wireless device with minimal tracking error. RSSI (Received Signal Strength Indication) technique together with enhancement algorithms is proposed to(..)

DOI: 10.21307/ijssis-2017-306

GUIDANCE-BASED ON-LINE MOTION PLANNING FOR AUTONOMOUS HIGHWAY OVERTAKING

Usman Ghumman/ Faraz Kunwar/ Beno Benhabib

In the context of intelligent transportation, this paper presents a novel on-line trajectory-generation method for autonomous lane changing. The proposed scheme is guidance based, real-time applicable, and ensures safety and passenger ride comfort. Based on the principles of Rendezvous Guidance, the passing vehicle is guided in real-time to match the position and velocity of a shadow target (i.e., rendezvous with) during the overtaking manoeuvre. The shadow target’s position and velocity are gen(..)

DOI: 10.21307/ijssis-2017-307

No Record Found..

Page Actions

Publications

International Journal on Smart Sensing and Intelligent Systems

FEATURED ARTICLES