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Title: viva voce questions for hall effect
Page Link: viva voce questions for hall effect -
Posted By: amjith
Created at: Thursday 17th of August 2017 06:18:12 AM
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The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular to the current. It was discovered by Edwin Hall in 1879.
The Hall coefficient is defined as the ratio of the induced electric field to the product of the current density and the applied magnetic field. It is a characteristic of the material from which the conductor is made, since its value depends on the type, number, and properties of the charge carri ....etc

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Title: hall effect based contactless techometer
Page Link: hall effect based contactless techometer -
Posted By: sudarshan s kadam
Created at: Thursday 17th of August 2017 08:26:23 AM
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Plz send me report of contactless tachometer based on hall effect ....etc

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Title: Magnetic Coupling Between DC Tachometer and Motor And Its Effect On Motion Control
Page Link: Magnetic Coupling Between DC Tachometer and Motor And Its Effect On Motion Control -
Posted By: mukundan
Created at: Friday 06th of October 2017 03:07:20 PM
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Abstract

Closed-loop servo control of a DC motor and load system using tachometer feedback is a very common industrial and research application. In the presence of finite shaft stiffness, this exercise becomes involved since flexibility introduces resonance and shaft ringing. To be able to model, predict, and eliminate these high-frequency resonance problems by means of an appropriate controller design, it is essential to have an accurate model for the entire drive system, including the tachometer.

The conventional tachometer model does n ....etc

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Title: ieee paper of non contact tachometer
Page Link: ieee paper of non contact tachometer -
Posted By: pankaj
Created at: Thursday 17th of August 2017 05:24:32 AM
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Abstract

A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine.The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common. The word comes from Greek (tachos speed) and metron (measure). Essentially the words tachometer and speedometer have identical meaning: a device that measures speed. It is by arbitrary convention that in the automotive world one is us ....etc

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Title: hall effect experiment viva questions pdf
Page Link: hall effect experiment viva questions pdf -
Posted By: wazilmankara
Created at: Thursday 05th of October 2017 04:43:21 AM
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hall effect experiment viva questions pdf

MOST EXPECTED PHYSICS VIVA QUESTIONS FOR PHYSICS PRACTICAL
MOST EXPECTED PHYSICS VIVA QUESTIONS FOR PHYSICS PRACTICAL

EXPERIMENT : FOUR PROBE
1) Energy band gap?
2) Relation of resistivity and T?
(In case of metal and semi-conductor with reason)
3) Depletion layer?
4) N- and p- type semi-conductors example?

EXPERIMENT : I-H CURVE
1) Retentivity and its plot on I-H curve?
2) Solenoid?
3) What does I-H curve area imply?
4) Examples of para-, di- and ferromagnetic materials?
5) What if I-H ....etc

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Title: c code for interfacing hall effect sensor with lpc2148
Page Link: c code for interfacing hall effect sensor with lpc2148 -
Posted By: deepu88
Created at: Thursday 05th of October 2017 04:12:28 AM
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c code for interfacing hall effect sensor with lpc2148

LPC2148 based water quality monitoring system
This project is based on LPC2148 ARM 7 Microcontroller, It measures pH, Flow, and temperature of water. It logs data on computer and shows real time readings on 16x2 LCD,
It uses :

BlueBoard-LPC2148
BlueBoard-LPC214x
BlueBoard-LPC214x

BlueBoard is a cost effective prototyping and solutions using the versatile LPC214x series of microcontrollers. It is a ready-to-run development platform with code snippets to demonstrate applications for eve ....etc

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Title: Low-Noise Non-Contact EEGECG Sensor
Page Link: Low-Noise Non-Contact EEGECG Sensor -
Posted By: tushartrex
Created at: Friday 06th of October 2017 03:12:47 PM
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Low-Noise, Non-Contact EEG/ECG Sensor

Thomas J. Sullivan, Stephen R. Deiss, and Gert Cauwenberghs Division of Biological Sciences, University of California, San Diego La Jolla, CA 92093-0368 USA


Abstract Typical electroencephalogram (EEG) and electrocardiogram (ECG) sensors require conductive gel to ensure low-impedance electrical contact between the sensor and skin, making set-up time-consuming and long-term recording problematic. We present a gel-free, non-contact EEG/ECG sensor with on-board electrode that capacitively couples t ....etc

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Title: components of hall effect based non contact tachometer
Page Link: components of hall effect based non contact tachometer -
Posted By: lipika
Created at: Thursday 17th of August 2017 05:42:06 AM
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sir i want to do my engineering project on hall effect sensor based non touch tachometer .want the full details of it ....etc

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Title: flow chart of non contact type tachometer using 8051
Page Link: flow chart of non contact type tachometer using 8051 -
Posted By: Jdmpec
Created at: Thursday 17th of August 2017 05:56:23 AM
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Contactless digital tachometer using 8051.

A three digit contact less digital tachometer using 8051 microcontroller which can be used for measuring the revolutions/second of a rotating wheel, disc, shaft or anything like that is introduced in this project. The tachometer can measure up to a maximum of 255 rev/sec at an accuracy of 1 rev/sec. What you just need to do is to align the sensor close to the reflective strip (aluminium foil, white paper or some thing like that) glued on the rotating surface and the meter shows the rev/sec on the di ....etc

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Title: hall effect sensor based non contact tachometer for electric motors speed measuremen
Page Link: hall effect sensor based non contact tachometer for electric motors speed measuremen -
Posted By: Anju
Created at: Thursday 17th of August 2017 05:45:28 AM
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respected sir/madam,
i saurabh kumar pran is doing b.tech(final yr.) from bharath university.i want little description regarding to the projectHall Effect sensor based non-contact Tachometer for electrical motors speed measurement. i also want to know what are the component used in this project and what is its expected cost.i have already worked on many sensing device in our previous semester mini project.if you have possible please send me block diagram of this project. i m highly obliged i ....etc

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