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In laser beam welding coalescence is produced by the heat obtained from the application of a concentrated coherent light beam impining upon the surface to be joined .
It consists of a man-made cylindrical ruby crystal, around the outside of the
crystal is placed flash tube containing inert gas xenon and the capacitor bank.
When subjected to electrical discharge from the capacitors, xenon transforms a high proportion of the electrical energy into white light. As the ruby is exposed to the intense light flashes, the chromium atom of the crystal are excited and pumped to a high energy level. The effect is enhanced because the parallel ends of ruby rod are mirrored so that the red light that is produced reflects back and forth along the length of the crystal. Finally the total energy bursts over a threshold and escapes from the small hole in the mirror at one end of the ruby crystal, as the laser beam.
Resistive transducers Linear or rotary potentiometers can be adapted to measure displacement, possibly through mechanical gearing and linkages. The displacement is registered a
relation between permeability and susceptibility
A key part of the course is the computer laboratories which will use a package for simulating flow around aerofoils developed by Patrick Hanley . A course licence has been purchase
Direct probe,isolation probe,high impedence probe,active probe,current probe
i''m doing a project and need to know from start how engineering is structure? like a tree starting from its root
I want help for the circuit theory
what are wavefronts and how are they useful in the field of optics and medicine?
Liquidity Ratios: The liquidity ratios of the company help in determining the ability of the company to convert its current or liquid assets readily into cash. Higher the ratios be
PROPELLER BALANCE There are two types of balance of importance when working with propellers: • Static Balance • Dynamic Balance Static balance is checked and corrected
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