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Electrical pins

Technique 5. In Technique 5, the driving plate free-surface velocity always is measured with electrical pin contactors. Buildup data from all experiments on a given density of explosive are pooled on the assumption of a single curve buildup and are fitted by the least squares method to the empirical function,... [Pg.367]

The two mounts described above are too large for probes with nanometer-sized tips. In addition to vibration problems, the mounts would not fit onto piezoelectric tube or tripod scanners. Small SECM probes are very similar to electrochemical STM probes. These probes are often mounted by plugging the probe into a small electrical pin-socket glued to the tube scanner. The socket thus serves as a mechanical and electrical contact to the probe. [Pg.26]

Poly(amide imide) precursors have excellent mechanical properties after imidization, at tenq)eratures up to 260 °C. It was first synthesized in the 60 s as a material for hi tenq)erature wire enamel (2). This high performance thermoplastic was developed fi-om research done by James Stephens of Amoco Chemicals (see Ref 3). It became available as an injection molding resin in 1976. These materials were first applied to make bum-in electrical pin connectors. At present the usage has spread into the aerospace, transportation, chemical processing and electronics industries. [Pg.143]

The circuit model includes, among others, a resistor, capacitor and inductor. Such component models are available from standard libraries. The model equations are v = R i, i = C der(v) and V =L-der(i), respectively, where der() denotes the time derivative. Each component has two electric pin interfaces (filled and non-filled blue squares in Figure la) that include the voltage v as a potential and current i as a flow variable. Model equations are introduced for connected component (object) interfaces as follows The potential is the same, whereas the sum of flow equals zero according to Kirchhoff s node rule. For example, in case of the circuit model shown by Figure la) v =v = V7 and... [Pg.2020]

The connection notation has been inspired from Modelica (Modelica Specification 2005)—an object-oriented language for modeling physical systems. The semantics of the connection is related to the type of ports that it connects. Modelica supports two ways of handling connected ports. If the variables in the ports are across variables, then they are set equal in the connected ports (for example, voltages in two connected electrical pins). If the variables are of type flow (like in the case of electrical currents), then Kirchhoff s law is applied, i.e., the sum of the variables in a node is equal to zero. [Pg.300]

The coating thickness may range from 0.0025 to 0.05 mm, depending on the type of protection required. Pure tin coatings are used on food-processing equipment, milk cans, kitchen implements, electronic and electrical components, fasteners, steel and copper wire, pins, automotive bearings, and pistons. [Pg.61]

C725, a 9 wt % nickel alloy that is further strengthened by 2 wt % tin, is used in electrical connectors and bellows. Properties are summari2ed in Table 21. The alloy has good resistance to stress relaxation at room and moderately elevated temperatures, which accounts for its use in connectors and electrical circuit wire wrap pins. [Pg.233]

Several features of ISS quantitative analysis should be noted. First of all, the relative sensitivities for the elements increase monotonically with mass. Essentially none of the other surface spectroscopies exhibit this simplicity. Because of this simple relationship, it is possible to mathematically manipulate the entire ISS spectrum such that the signal intensity is a direct quantitative representation of the surface. This is illustrated in Figure 5, which shows a depth profile of clean electrical connector pins. Atomic concentration can be read roughly as atomic percent direcdy from the approximate scale at the left. [Pg.520]

A typical anode for practical use would be in the order of 25 to 48 mm in diameter, with hard platinum alloy pins of 0-50 mm diameter by 10 mm length, spaced every 150 to 300 mm and progressively positioned around the circumferenceThe pins are a press fit into holes in the lead or lead alloy (approximately 01 mm diametric interference) and lie flush with the surface. The lead is peened around the pins to improve the mechanical and electrical contact. [Pg.182]

Beryllium is obtained by electrolytic reduction of molten beryllium chloride. The element s low density makes it useful for the construction of missiles and satellites. Beryllium is also used as windows for x-ray tubes because Be atoms have so few electrons, thin sheets of the metal are transparent to x-rays and allow the rays to escape. Beryllium is added in small amounts to copper the small Be atoms pin the Cu atoms together in an interstitial alloy that is more rigid than pure copper but still conducts electricity well. These hard, electrically conducting alloys are formed into nonsparking tools for use in oil refineries and grain elevators, where there is a risk of explosion. Beryllium-copper alloys are also used in the electronics industry to form tiny nonmagnetic parts and contacts that resist deformation and corrosion. [Pg.713]

Schneemeyer LF, Wrighton MS (1980) n-Type molybdenum diselenide-based photoelectrochemical cells Evidence for Fermi level pinning and comparison of the efficiency for conversion of light to electricity with various solvent/halogen/halide combinations. J Am Chem Soc 102 6964-6971... [Pg.298]

A pin-diode has three layers p-doted layer, i intrinsic interaction layer, n-doted layer. The outer layers provide the electrical field. In the inner layer photons generate electron-hole-pairs which result in a current, although the diode is operated in reverse-biasing mode. [Pg.77]

The Schottky-Mott theory predicts a current / = (4 7t e m kB2/h3) T2 exp (—e A/kB 7) exp (e n V/kB T)— 1], where e is the electronic charge, m is the effective mass of the carrier, kB is Boltzmann s constant, T is the absolute temperature, n is a filling factor, A is the Schottky barrier height (see Fig. 1), and V is the applied voltage [31]. In Schottky-Mott theory, A should be the difference between the Fermi level of the metal and the conduction band minimum (for an n-type semiconductor-to-metal interface) or the valence band maximum (for a p-type semiconductor-metal interface) [32, 33]. Certain experimentally observed variations of A were for decades ascribed to pinning of states, but can now be attributed to local inhomogeneities of the interface, so the Schottky-Mott theory is secure. The opposite of a Schottky barrier is an ohmic contact, where there is only an added electrical resistance at the junction, typically between two metals. [Pg.43]


See other pages where Electrical pins is mentioned: [Pg.55]    [Pg.55]    [Pg.130]    [Pg.2020]    [Pg.599]    [Pg.55]    [Pg.55]    [Pg.130]    [Pg.2020]    [Pg.599]    [Pg.2561]    [Pg.9]    [Pg.190]    [Pg.410]    [Pg.533]    [Pg.98]    [Pg.464]    [Pg.517]    [Pg.518]    [Pg.1613]    [Pg.1732]    [Pg.1803]    [Pg.1913]    [Pg.356]    [Pg.399]    [Pg.398]    [Pg.621]    [Pg.433]    [Pg.592]    [Pg.228]    [Pg.237]    [Pg.546]    [Pg.153]    [Pg.990]    [Pg.175]    [Pg.197]    [Pg.362]    [Pg.7]    [Pg.356]    [Pg.55]    [Pg.59]   
See also in sourсe #XX -- [ Pg.63 ]




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