Transducer

According to Gibilisco, piezoelectricity is an ability to generate a current when it undergoes to stress or vibration. Feitscher said that piezoelectricity is the appearance of positive electric charge on one side of certain nonconducting crystals and negative charge on the opposite side when the crystals are subjected to mechanical pressure. Piezoelectricity was used on devices such as microphones, phonograph pickups, and wave filters in telephone-communications systems The direct piezoelectric

One of the main challenges in this effort is how to autonomously operate multiple sensors for oxygen monitoring and to replace the existing technology which is based on a handheld portable gas detector weighting up to 5lbs and placed in the belt or waistband of the worker. Our innovative design is based on converting wasted mechanical energy from the movement of the worker to useful amount of energy by using the piezoelectric transduction mechanism. Depending on the movement of the worker and the

Abstract— Health is the most important part of the existence, and is in today’s age the most critical, costly and time consuming area. People want to safeguard their health and take all the necessary precautions all by themselves, moving to the healthcare facilities only at dire need. A leading technology paradigm is the use of biosensors in quantifying the biological and physiological parameters and transferring the result to a GUI for health monitoring without the assistance of any healthcare personal

2.8. Optical ring resonator based sensor performance metrics To compare different kinds of optical RR based sensors, it is necessary to define some performance metrics. The suitability of optical sensors for a particular application will depend on their performance across number of sensor requirements. Some metrics such as sensitivity, and sensor cost, can be defined numerically (either by means of experimental or theoretical calculations). Other metrics such as portability is more subjective or

1. Introduction Robots earlier where used in manufacturing industries to ease the task. But now they are making their way into human life. This has led to the research and development in robotics. Future robot must able to learn autonomously and to interact safely with the environment i.e. without causing any harm to it or to the objects with which it is interacting (Ravinder S. Dahiya and Maurizio Valle, 2008). The way robot interacts with the surrounding forms an important aspect. The touch, vision

This paper basically introduces a new hierarchy for automation of buildings and control systems. The increase in tremendous population has resulted in tall and technological buildings. So the increase in size has caused the increased in complexity of the computerized systems mainly because of the thrust towards the energy effectual buildings. The communication networks join the systems with the sensors and convey the knowledge to them. When they have aroused the information to the systems then the

CHAPTER 6 SOFTWARE REQUIREMENT SPECIFICATION (SRS IS TO BE PREPARED USING RELEVANT MATHEMATICS DERIVED AND SOFTWARE ENGG. INDICATORS IN ANNEX A AND B) 6.1 INTRODUCTION 6.1.1 Purpose and Scope of Document Our software module determines the garbage levels in the bins of a particular location.The main parameters used in our software are the sensor values and GSM module (for communication).According to that user gets the information where to dump trash and administrator gets the idea which bins are

Capacitive Sensors Capacitive sensors use an array capacitor plates to image the fingerprint. Skin is conductive enough to provide a capacitive coupling with an individual capacitive element on the array. Ridges, being closer to the detector, have a higher capacitance and valleys have a lower capacitance. Some capacitive sensors apply a small voltage to the finger to enhance the signal and create better image contrast. Capacitive sensors can be sensitive to electrostatic discharge (shock) but they

The problem which had arose this year, we had to get into groups and decide what project to undergo for this second year of the degree course. When groups were created we were sharing ideas of project we would do and if they were possible to make or not. We could not have a small project because we were in a group of 3 so we had to make sure the project was big enough to do for group of 3 members. The purpose of the project was to build an electrical and electronic based project which involved circuitry

been developed for use with robots. Tactile sensors can complement visual systems by providing added information when the robot begins to grip an object. At this time vision is no longer sufficient, as the mechanical properties of the object cannot be determined by vision alone. Determining weight, texture, stiffness, center of mass, coefficient of friction, and thermal conductivity require object interaction and some sort of tactile sensing.Tactile sensing is a field that is rapidly progressing