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Page Name: Explain eddy current tachometer with suitable sketch ppt


Posted by: project source code cheker
Created at: Tuesday 14th of August 2012 12:46:40 AM
Last Edited Or Replied at :Tuesday 14th of August 2012 12:46:40 AM
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pindle is attached to the aluminium cup to which a pointer is fixed as shown in figure
• A hairspring is fixed to the spindle, which provides necessary controlling torque
• At no revolutions it positions the pointer at zero on the calibrated scale
• As the magnet rotates within the aluminium cup alongwith the shaft of the machine eddy currents are induced in the cup which result in a torque or drag that tends to turn the cup against the spring
• The deflection of the cup is proportional to the induced emf, which in turn is proportional to the speed of the shaft
• The deflection ..................==> [ Click Here to Read More ]



Page Name: ppt on eddy current based flexible sensor for contactless measurement of breathing


Posted by:
Created at: Sunday 30th of March 2014 01:31:53 PM
Last Edited Or Replied at :Sunday 30th of March 2014 01:31:53 PM
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plz send me ppt on eddy current based flexible sensors for the contactless measurement of breathing on my email [email protected].................==> [ Click Here to Read More ]



Page Name: drag cup tachometer working principle


Posted by:
Created at: Sunday 10th of February 2013 11:37:35 PM
Last Edited Or Replied at :Sunday 10th of February 2013 11:37:35 PM
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how the drag cup rotate when permanent magnet rotates in drag cup tachometer
..................==> [ Click Here to Read More ]



Page Name: EDDY CURRENT BRAKES PPT


Posted by: engineering project helper
Created at: Tuesday 20th of November 2012 12:11:53 AM
Last Edited Or Replied at :Sunday 25th of November 2012 11:56:10 PM
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EDDY CURRENT BRAKES



EDDY CURRENT:

It is a swirling current set up in a conductor in response to a changing magnetic field.
By Lenz's law, the current swirls in such a way as to create a magnetic field opposing the change

Eddy Current Brakes

It slow an object by creating eddy currents through emi which create resistance, and in turn either heat or electricity.
Braking action is made by varying the strength of the magnetic field.
A braking force is possible when electric current is passed through th..................==> [ Click Here to Read More ]



Page Name: Explain eddy current tachometer with suitable sketch ppt


Posted by: project source code cheker
Created at: Tuesday 14th of August 2012 12:46:40 AM
Last Edited Or Replied at :Tuesday 14th of August 2012 12:46:40 AM
eddy current tachometer ppt, eddy current type tachometer , electrical tachometer ppt, sketch and explain eddy current tachometer , explain working of eddy current tachometer, eddy current ppt , ppt on eddy current drag cup tachometer, tachometer device ppt , drag cup tachometer ppt, eddy current tachometer pdf , images of eddy current or drag type tachometer, eddy current generation type tachometers , explain eddy current, eddy current sketch , eddy current tachometer working and sketch, suitable sketch , powerpoint presentation on eddy current tachometer, eddy current tachometer , eddy current seminar ppt, tachometer calibration ppt , pdf about eddy current tachometer,
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Explain eddy current tachometer with suitable sketch



• In the magnetic drag type of tachometer a transducer produces an analog signal in the form of a continuous drag due to eddy currents induced in an aluminium cup
• The induced current is proportional to speed

Construction And Working

• It consists of a rotor which is coupled to the rotor shaft of the machine whose speed is to be measured
• A permanent magnet is attached to the rotor which rotates within an aluminium cup alongwith the rotor
• A s..................==> [ Click Here to Read More ]



Page Name: eddy current testing


Posted by: lucinajoe
Created at: Tuesday 20th of July 2010 04:41:01 AM
Last Edited Or Replied at :Tuesday 20th of July 2010 05:01:40 AM
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d inspection of tubing like heat exchangers are common eddy current applications. Both cracking and thickness variations can be detected.



Eddy current arrays

Eddy Current Array testing, or ECA, is a technology that provides the ability to simultaneously use multiple eddy current coils that are placed side by side in the same probe assembly. Each individual coil produces a signal relative to the phase and amplitude of the structure below it. This data is referenced to an encoded position and time and represented graphically as a C-scan image showing structures in a planar view. In a..................==> [ Click Here to Read More ]



Page Name: eddy current brake full report


Posted by: best project report maker
Created at: Saturday 20th of February 2010 11:52:06 PM
Last Edited Or Replied at :Sunday 25th of November 2012 11:56:30 PM
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Eddy current brakes develop torque by the direct magnetic linking of the rotor to the stator.
This linking generates eddy currents in the driven rotor.
Eddy current brakes must have a slip between the rotor and the stator to generate torque.
An eddy current brake having an electromagnetic pole and the rotor is positioned in close proximity to the stator with an air gap between them
The stator comprises steel pole pieces with hollow cores that establish a magnetic circuit for a magnetic flux field.
The pole pieces have machine-wound electrical windings.
The windings are fastene..................==> [ Click Here to Read More ]



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