Research paper | 13-December-2017
This paper presents complete behavioral analysis of a surface micro-machined MEMS varactor for frequency tuning application in voltage controlled oscillators in RF applications with high Quality factor and tunability. The dimensions of the MEMS device have been optimized with Finite Element Method based CoventorWare analysis and verified through lumped parameter analysis in Saber platform. The MEMS varactor has been fabricated with the PolyMUMPs process. The paper also describes the Mechanical
Subha Chakraborty,
A. Bhattacharya,
Ashesh Ray Chaudhuri,
T.K. Bhattacharyya
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 94–107
Research Article | 20-February-2013
Bridge is an important part of modern transportation systems and deflection is an important index for bridge’s safety evaluation. In this paper, a method of deflection measurement using Wireless MEMS Inclination Sensor Systems (WMISS) is presented and validated. Firstly, based on various bridge deflection measuring methods, the method of deflection measurement using inclination parameter is introduced. Secondly, a low-power wireless inclination sensor based on 3D-MEMS SCA60 inclinometer
Yan Yu,
Hang Liu,
Dongsheng Li,
Xingquan Mao,
Jinping Ou
International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 1, 38–57
Article | 03-November-2017
Thermal effects in integrated piezoresistive MEMS pressure sensor may be a problem of concern in design for applications requiring high precision measurements and in continuously monitoring array of sensor network. It not only results in the shift of the offset voltage of the pressure sensor but also affects the performance of the adjacent CMOS circuit leading to erroneous values. To address this problem, the thermal effects of the integrated sensor chip along with its packaging arising out of
C. RoyChaudhuri,
S K Datta,
H. Saha
International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 3, 432–447
Research Article | 13-December-2017
A low power MEMS based sensor along with the embedded power efficient signal conditioning unit (Microcontroller based), which can be used with any suitable sensor-network to detect and quantify variations in a particular gas concentration, has been reported in this paper. The power consumption of the MEMS gas sensor is ~ 70mW to 100mW depending upon its operating temperature (150-250°C) and that of entire signal conditioning unit (consisting of low noise amplifier, switch, microcontroller and
P. Bhattacharyya,
D. Verma,
D. Banerjee
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 4, 771–782
Research Article | 11-January-2018
Electrochemical micro-electro mechanical systems (MEMS) seismic sensor is limited by its nonideality of frequency dependent characteristics hence interface circuits for compensation is necessary. The conventional compensation circuits are limited by high power consumption, bulky external hardware. These digital circuits are limited by inherent analog to digital conversions which consumes significant power, acquires more size and limits processing speed. This system presents field programmable
Ramesh Pawase,
Dr. N.P. Futane
International Journal on Smart Sensing and Intelligent Systems, Volume 11 , ISSUE 1, 1–6
Article | 01-March-2015
Due to their small size, low weight, low cost and low energy consumption, MEMS (Micro Electro-Mechanical Systems) accelerometers have achieved great commercial success in recent decades. The objective of this paper is to find the optimum design for a typical MEMS accelerometer, which satisfies a set of given constraints. Due to the complex nature of the problem, a gravitational search algorithm (GSA) is developed for optimization. The GSA attempts to optimize the inter-plate gap while
Souad Oukil,
Abdelmadjid Boudjemai,
Nabil Boughanmi
International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 1, 65–89
Research Article | 15-February-2020
We present a hybrid MEMS (micro-electromechanical systems) based spectrometer of the size of a sugar cube, fabricated at the clean room facilities of Fraunhofer IPMS, Dresden. This SGS (scanning grating spectrometer) is designed for integrated spectroscopic applications in the field of food quality analysis and food processing technology. Using another, larger, MEMS-based scanning grating spectrometer, we perform a series of test measurements of the absorption of different types of oil. Thereby
S.I. Hintschich,
T. Pügner,
J. Knobbe,
J. Schröder,
P.Reinig Reinig,
H. Grüger,
H. Schenk
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5
Research paper | 13-December-2017
In this paper, the authors introduced a new approach to realize a contact-free micro-bearing for MEMS (Micro-Electro-Mechanical-Systems) applications. In the proposed idea, the mechanism of magnetic repulsion by eddy current was employed. Numerical analysis and experimental research was performed. In the proposed structure having a ringed magnetic circuit having a circularly-arranged gap (gapped-core), the generated magnetic flux was concentrated with high density and showed precipitously
T. Nakao,
H. Han,
Y. Koshimoto
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 3, 536–549
Research Article | 15-February-2020
In this paper, a MEMS based capacitive nasal sensor system for measuring Respiration Rate (RR) of human being is developed. At first two identical diaphragm based MEMS capacitive nasal sensors are designed and virtually fabricated. A proposed schematic of the system consists of signal conditioning circuitry alongwith the sensors is described here. In order to measure the respiration rate the sensors are mounted below Right Nostril (RN) and Left Nostril (LN), in such a way that the nasal airflow
Madhurima Chattopadhyay,
Deborshi Chakraborty
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5
Research Article | 01-September-2017
pipeline by providing the advance warning to the concern department and make them alert. The dust particles are detected by using MEMS, which can sense in three axis (Heat, Vibration, Movement). It is identified by the IR sensor. The approach can also be simulated by using MATLAB.
B. Thamilvalluvan,
Dr.M.Anto Bennet,
K. Gokulakrishnan,
S. Harrison,
R. Shanmugam,
B. Mangaram
International Journal on Smart Sensing and Intelligent Systems, Volume 10 , ISSUE 5, 147–162
Research Article | 15-February-2020
In most sports, the vertical jump is one of the most basic actions. Jumping force and explosive power are two specific indicators to reflect the ability of the muscles in one vertical jump. This paper presents a light-weight and easy-to-use wireless system to analyze the process of human vertical jumping up through the use of a Micro Electro Mechanical System (MEMS) accelerometer and a MEMS gyroscope. The system allows the users to be able to measure the jump parameters, including jumping force
Penghai Wang,
Haiyang Quan,
Lidong Lan
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5
Research Article | 13-December-2017
Some studies on the fabrication of micro-needles, micro-pillers, and micro-channels using SU-8 negative photoresist for MEMS and bio-applications are reported. The SU-8 processing technology was standardized for the purpose. Micro-pillars were fabricated on SU-8 polymer by soft lithographic technique. Micro-needles were realized on SU-8 film utilizing lensing effect of the etched groove structure of the glass substrate. Micro-channel was fabricated by molding of PDMS polymer on patterned SU-8
P.K. Dey,
B. Pramanick,
A. RaviShankar,
P. Ganguly,
S. Das
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 118–129
Research Article | 13-December-2017
The application of sensors encompasses many sectors of industry. In this paper, we outline different sensors – Raman distributed temperature sensor, sensor based on nano ferrofluids and MEMS based ultrasonic sensors. The development and application of these sensors for monitoring performance of systems and processes are discussed. Further, we also discuss the application of acoustic emission and infrared thermal imaging for process monitoring.
T. Jayakumar,
C.Babu Rao,
John Philip,
C.K. Mukhopadhyay,
J. Jayapandian,
C. Pandian
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 61–74
Research paper | 13-December-2017
Savita Maurya
International Journal on Smart Sensing and Intelligent Systems, Volume 3 , ISSUE 1, 88–93
Article | 02-November-2017
This paper presents the algorithm on the compensator design for eliminating the nonlinearity in the capacitive pick-off MEMS open-loop accelerometer and its implementation in the FPGA. A simple and elegant method is presented for the purpose. In the sensor model of compensator, upto 3rd order terms are taken. The first step approximation is derived using linear model. This approximation is improved over iterations to reduce the non-linearity. With this method, the inertial navigational grade
Thampi Paul,
S.Vijin Jenius,
M. Sasi Kumar
International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 2, 213–228
Article | 01-December-2016
are compared in this paper. Using the relative coordinate transformation algorithm, the relative position detection system based on the MEMS six-axis sensor is designed. Using two sensors to detect both the attitude of the stator and the rotor, the relative position detection system is realized. The data received from sensor transformed by this method is used to verify the feasibility.
Yuanjie Fang,
Bing Xu,
Chunhu Sun
International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 4, 1710–1730
Research Article | 13-December-2017
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
N.P Futane,
P. Bhattacharyya,
S. Barma,
C. Roychaudhuri,
H. Saha
International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 430–442
Research Article | 13-December-2017
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
Sangtak Park,
So-Ra Chung,
John T.W. Yeow
International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 480–497
Article | 05-September-2013
damping coefficient in time domain and frequency domain respectively using this method. The comparison to the theoretical solution proves that the method is effective and accurate; it will help the study for the micro-machined gyroscope vibration and provides a new way to measure MEMS.
Yao Fenglin,
Gao Shiqiao,
Zhao Jie,
Liu Haipeng,
Niu Shaohua,
Jin Lei
International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 4, 1599–1616
Article | 09-April-2018
Heng Li,
Libin Huang,
Qinqin Ran,
Songli Wang
International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 4, 56–60
Research Article | 15-February-2020
Asif I. Zia,
S.C. Mukhopadhyay,
P.L. Yu,
I. H. Al-Bahadly,
C. Gooneratne,
Jǘrgen Kosel
International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–7