Journal of Instrumentation Technology & Innovations
Volume 6, Issue 3 (2016)
Published
Table of contents
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Medical Multiparameter Measurement System Development for Doctors
Abstract: To determine the overall fitness and risk developing chronic diseases of person, doctors need to know the various parameters of person which are height, weight and temperature. For measuring these parameters doctors need different devices. Hence, in this paper, a system is designed to measure height, weight and temperature of a person in a single device. The system includes hall sensor, load cell, LM35 PIC microcontroller, LCD display, pulley with …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 1–7 Read article
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Stabilizing Varying Eccentricity Problem in Hydrodynamic Bearings Using Elegant Control Strategies
Abstract: The implementation of elegant control strategies to stabilize varying eccentricity problem in hydrodynamic bearing has been proposed in this paper. This implementation deals or gives an advantage of good stability of hydrodynamic bearing, even at critical or threshold speeds where an unstable whirl occurs leading to instability assisted greatly by this varying eccentricity factor. Hence in this paper, we take eccentricity as a function of variation and try to stabilize …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 14–20 Read article
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Design and Implementation of LQR with State Observer for Position Control of DC Servo Motor using dSPACE DS-1104
Abstract: The aim of this work is to design the LQR based state observer for controlling the position of a DC servo motor. The Luenburger observer is used to design the observer. The feedback controller gain is calculated using LQR technique and the overall system is simulated on MATLAB/Simulink. After observing the observer based feedback system in MATLAB/simulation, the overall system is implemented on dSPACE DS1104 Controller board. The result is …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 21–28 Read article
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Design of RF Energy Harvesting Circuit Using π Matching Network for Low Power Devices
Abstract: Author proposed a different matching network in this paper to reduce the losses between a receiving antenna and RF to DC convertor by incorporating a π matching network. RF energy harvesting is increasing in demand to charge the low power device without using any external power supply. In this proposed harvesting circuit, the output voltage has been increased up to 5.9 V, which is sufficient enough to charge any low …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 29–32 Read article
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Stabilizing Hydrodynamic Bearing Using H∞ Loop Shaping Design Procedure
Abstract: This paper proposes the idea of H∞ loop shaping to design an active stabilizing controller for short journal bearing. Hydrodynamic bearings have viscous friction and stiffness force associated with fluid film layer sheared during the motion of bearing; at high speed, they can land up too wide and considerable heat is generated. As a result instability occurs, thus working inefficiently that can be the cause of material damage and also …
Published in Journal of Instrumentation Technology & Innovations · Vol. 6, Issue 3, 2016 · pp. 8–13 Read article