construction and working of impatt diode pdf

Abstract

In many respects, the IMPATT diode structure is very similar to that of many other forms of diode, and in particular the standard PN junction diode or the Schottky diode.However the differences in its construction and fabrication mean that it is able to operate in its avalanche mode whether the transit time provides the negative resistance.
There is a variety of structures that are used for the IMPATT diode. All are variations of a basic PN junction and usually there is an intrinsic layer, ....etc

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The WEG tachogenerators have been designed for applications
on servocontrol operating machines, driving of textile
machines, accelerators, braking of elevators, control and regulation
of fine adjustments which depend on speed variation
and other applications that require continuous and closely
controlled speed.
The tachogenerator gives a continuous voltage sign corresponding
to the speed actual value of the electric machine to
which it is coupled.
1.2.CONSTRUCTION
The Tachogenerator is fitted with permanent magnets in
the stator with ....etc

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earthquake resistant construction of r c c building and construction practices seminar pdf

Earthquake-resistant structures are structures designed to withstand earthquakes. While no structure can be entirely immune to damage from earthquakes, the goal of earthquake-resistant construction is to erect structures that fare better during seismic activity than their conventional counterparts.

According to building codes, earthquake-resistant structures are intended to withstand the largest earthquake of a certain probability that is likely to occu ....etc

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To get information about tachogenerato refer the page link below

http://seminarsprojects.net/Thread-tachogenerator-working-principle-ppt?pid=183787#pid183787 ....etc

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To get information about tachogenerato refer the page link below

http://seminarsprojects.net/Thread-tachogenerator-working-principle-ppt?pid=183787#pid183787 ....etc

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construction and working of foot operated air pump mechanism com

Abstract

After the introduction of tubeless tires frequent the instances of flat tires on the roads have reduced by a considerable extent. Most smaller punctures leading to slow air loss are now detected at morning with deflated or low air pressure in tires.Tubeless tire repair facility is still not available at all the places in our country. Most roadside puncture repair shops in smaller towns damage the tires at the time of fixing punctures. I travel frequently and at times i ....etc

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dc and ac tachogenerator working principle ppt

DC Tachogenerators give you accurate DC Voltage output proportional to speed of its mover. They are widely used in applications for feedback and display purposes.

Specifications:

Current: Up to 200 mA
Speeds: Up to 10000 rpm
Voltages: 4V to 200 V / 1000 rpm
Standard Options (EXTRA) :

Temperature Compensation
Terminal Box / Connector
Foot Mounting
Extended Shaft
Standard Features :
Compact and Light Weight and can substitute a range of imported / indigenous tachos
High Linearity
Low Ripple
High ....etc

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to get information about the topic earthquake resistant techniques full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-advanced-earthquake-resistant-design
....etc

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Working and construction of electric fan

An electric fan is an electric motor to which the blats are fixed so that then the motor of the fan rotates ,the balds through the air A D.C fan are of DC series motor in which the rotating part armature is connected in series with the stationary part and when the current is given to the motor , the magnetic field is set up in the field winding which experience a force in the armature to move it at right angle to the feed and balds attached with shaft of armature displaced the air. the same principle ....etc

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to get information about the topic phototransistor related topic refer the page link bellow

http://seminarsprojects.net/Thread-phototransistor-a-leap-of-optoelectronics ....etc

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