Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

This paper reviews some of the recent signal conditioning and Interface circuits for the capacitive type sensors. This paper gives the brief idea of advantages and limitations of interface circuits for the various capacitive sensors. The sensor output may be either current or voltage but it has to be converted to the desired output range only by the signal conditioning circuit. Signal conditioning circuits provides the analog output in the desired range; this can be converted to digital through Analog to Digital converter. The signal conditioning circuit should able to produce not only the convenient of output voltage or current levels but it has to provide the isolation, impedance matching, linearization with the input, proper gain adjustment with the amplification, filtering of unwanted signals, etc. Here we reviewed the four different methodologies of the proposed signal conditioning and interfacing circuits with its advantageous and limitations. © 2005 - 2012 JATIT &amp; LLS. All rights reserved.

Department of Control and Automation

School of Electrical Engineering

Vellore Campus

Department of Instrumentation

Journal of Theoretical and Applied Information Technology

Performance Comparisons of interface circuits for measuring capacitances

This project discusses the implementation of pressure control on a real time process using fuzzy logic controller. This project aims to develop a control strategy using a fuzzy based controller as an alternative to the existing PI controller in NI LabVIEW. It consists of controlling a certain process in a much simpler and easy manner by taking the control action. This involves designing and tuning of the membership functions and input/output rules. © 2012 Praise Worthy Prize S.r.l.

World University root node

International Review on Modelling and Simulations

Study and comparison of fuzzy logic and PI controller based on pressure control system

MEMS or Micro-Electro-Mechanical Systems are chips that are made in semiconductor material that combine electronic functions with mechanical actions in micro level. MEMS devices are capable of sensing and controlling numerous applications that include ink jet printers, automotive motion sensors and even digital projectors. MEMS are used in the medical field to reduce pain and increase the efficiency of the patient. This paper will describe the rapidly emerging field of MEMS based instruments used in medical field and discuss its present and future applications. © 2012 International Frequency Sensor Association (IFSA).

Sensors and Transducers

Review of MEMS based application in medical industries

Automation in clinical chemistry has progressed with a change from rigid to very flexible instruments. To support high flexibility, accuracy and personalization, the new concept of automatic clinical laboratory systems are required. The advantage of this instrument is reducing the load on clinical laboratories to a greater extent by reducing the time taken in the test and minimizing the involvement of laboratory staff. Automated Robotic arm is defined as a dedicated robotic system which is capable of performing selective laboratory tests. This system is designed for selective tasks as well as provides high degree of flexibility and user friendly. This system can be installed in small or medium sized clinical chemistry analyzers. © Research India Publications.

International Journal of Applied Engineering Research

Development of automated robotic arm to handle sampler and reagent for chemistry analyzer

Electrical Capacitance Tomography is employed to obtain the information about the spatial distribution of a mixture of dielectric materials inside a vessel, by measuring the electrical capacitances between the sets of electrodes placed around its periphery and converting them into an image showing the distribution of permittivity. In this paper introduction to capacitance tomographical technique is given and the existing transduction mechanisms are described. © Research India Publications.