Electrically plate

Chin. Pat. CN 86,101,597 (Sept. 23, 1987), G. Fang (to Wuhan Bicycle Electric Plating Plant, Peoples RepubHc of China). 

American physicist Robert A. Millikan and his student Harvey Fletcher designed an experiment to determine the charge on the electron. As shown in Figure 2-14. the apparatus was a chamber containing two electrical plates. An atomizer sprayed a mist of oil droplets into the chamber, where the droplets drifted through a hole in the top plate. A telescope allowed the experimenters to measure how fast the droplets moved downward under the force of gravity. The mass of each droplet could then be calculated from its rate of downward motion. 

An electric precipitator contains sets of electric plates. A high-voltage (20,000-V) electric current is applied across these plates, or electrodes. The droplets of water are electrically attracted to these plates, or grids. The water droplets coalesce into larger heavier droplets on the plates. They fall rapidly to the bottom of the electric precipitator vessel. 

Section 2.24). The mixture is heated to boiling on a water bath (if the solvent boils below 80 °C) or with an electric heating mantle, and more solvent is added down the condenser until a clear solution, apart from insoluble impurities, is produced. If the solvent is not flammable, toxic or expensive, recrystallisation may be carried out in a conical flask, into the neck of which a funnel with a short stem is inserted, which is heated on an electric plate. 

Diethyl ether is very volatile and flammable. Make certain that there are no open flames, not even a hot electrical plate in the vicinity of the operation. 

The conservation of energy in the presence of fields such as gravity, electric, and magnetic fields is sometimes not easy to perceive. Here we discuss processes associated with the electric plate condenser. 

If a particle moves through the plates of an electric plate condenser, it is deflected. It is suggestive that the particle gains kinetic energy at the cost of the electric energy of the plate condenser. 

After the qualitative discussion exemplified with the electric plate condenser, we can explain the electric potential. 

The conventional ICR mass analyzer consists of an ICR cell. The cell is made of four identically curved metal electric plates installed symmetrically with respect to a central axis, and two metal hollow disks cover the two ends. Figure 3.11 illustrates the geometry... 

Cathode rays leave the cathode, or negative electrode, and are accelerated toward the anode, or positive electrode. Some of the rays pass through the hole in the anode to form a beam, which then is bent by the electric plates in the tube. 

Many different shapes have been developed for micro bump arrays. The fusing solder process can make a spherical bump shape easily. Electrical plating of copper, nickel, gold, and combinations of these elements can provide many varieties of bump shapes. Changing the combination ratios and other factors can generate flat disks, flat domes, straight columns, etc. (Fig. 66.11). The best combination can provide 100- to 150-/mi-pitch micro bump arrays on 50- Um-thick dielectric layers. 

An electric field sensor or a magnetic field sensor prepared for each circuit will detect all opens and shorts in branched circuits. Another big advantage of the non-contact test system is that it works for general circuits that have a common bus bar for electrical plating. The circuits must be isolated to conduct the electrical short test when traditional contact test methods are being used. 

As a consequence of die dipole moment, polar molecules tend to be oriented in an electric field with the positive ends directed toward die negative electric plate and the negative ends toward the positive plate (Fig. 8.3). The orientations are far from perfect because of the randomness imposed on them by the kinetic energy of the molecules. 

Dissolve about 2 g of mixed fatty and resin acids in 20 ml of a 4 per cent solution of naphthalene- -sulphonic acid in dry methanol and heat under a reflux condenser for thirty minutes, adding a few pieces of porous plate to ensure regular ebullition, and using an electric plate or a Bunsen burner under an asbestos wire gauze as the source of heat. Conduct a blank experiment at the same time with 20 ml of the sulphonic acid solution. Cool the contents of both flasks and titrate with 0 5N ethanolic potash, using phenolphthalein as indicator. 1 ml 0 5N = 0-163 g of resin acids. 

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