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Quartz crystal for

Oscillators -NLO for lasers [NONLINEAR OPTICAL MATERIALS] (Vol 17) -parametric [LASERS] (Vol 15) -synthetic quartz crystals for [SILICA - SYNTHETIC QUARTZ CRYSTALS] (Vol 21)... [Pg.707]

Radios -synthetic quartz crystals for [SILICA - SYNTHETIC QUARTZ CRYSTALS] (Vol 21)... [Pg.839]

Satellites - [ALUMINUMAND ALUMINUM ALLOYS] (Vol 2) -batteries for [BATTERIES - SECOND ARYCELLS - ALKALINE] (Vol 3) -hydrazine fuel for [HYDRAZINE AND ITS DERIVATIVES] (Vol 13) -infrared remote sensing from [INFRARED TECHNOLOGY AND RAMAN SPECTROSCOPY - INFRAREDTECHNOLOGY] (Vol 14) -synthetic quartz crystals for [SILICA - SYNTHETIC QUARTZ CRYSTALS] (Vol 21) -thermoelectric power supplies for [THERMOELECTRIC ENERGY CONVERSION] (Vol 23)... [Pg.870]

Heising, R. A. Quartz Crystals for Electric Circuits. Van Nostrand New York (1946). [Pg.321]

Dickert and co-workers [18] have made an innovative advance by applying polyurethane-based MIPs to quartz crystals for the selective detection of solvent vapours (see also Section 20.2.5.8. and Chapter 21). Electrodes may be attached to quartz crystals to form quartz crystal microbalances (QCMs), wherein minute increases in the mass of the device (for example, upon adsorption of solvent vapour) result in a decrease of the resonant frequency of the crystal. For crystals... [Pg.470]

There is also an increasing production of single crystals, not for research studies, but for use as such in various devices, mainly electrical and magnetic. Examples of these applications are quartz crystals for oscillators and timing circuits, silicon and germanium crystals for transistors and other semiconductor products, and garnet crystals for magnetic memories. These crystals must all be produced with particular orientations. [Pg.233]

Fig. 7 Plot of real part admittance, G (Y = G +jX), against reduced frequency for AT-and BT-cut quartz crystals for different fundamental frequencies,/o... Fig. 7 Plot of real part admittance, G (Y = G +jX), against reduced frequency for AT-and BT-cut quartz crystals for different fundamental frequencies,/o...
Barnes C 1991 Development of quartz crystal for under-liquid sensing Sensors... [Pg.491]

The use of resonating quartz crystals for mass-change determinations is very attractive because a sensitivity of about 10"12 g/cmz is feasible. Mass determinations with resonating quartz crystals have been discussed by Plant (48) and Van Empel et al. (49). The principle (49) of the determination is based on the relationship between the variation, A/ of the resonant frequency, f and the mass added, Am, or... [Pg.126]

The first application of a quartz crystal for use as a nonisothermal thermobalance was reported by Henderson ei al. (66). This was accomplished through the use of a minicomputer to characterize the temperature-frequency relationship for the crystal and to correct numerically the frequency-temperature-mass relationship to obtain the TG curve of the sample. One advantage of such a system is that very fast heating rates may be employed due to small sample size (t-40 jug typical) and high sensitivity. Thin films of sample exhibit rapid gas diffusion and thus permit thermal equilibrium to be maintained at heating rates of l00°C/min or greater. Applications of this thermobalance include the evaluation of thin films and coatings as well as various polymer studies of pyrolysis, flammability, and so on. [Pg.126]

After feldspar quartz is the most frequent mineral on the Earth. However the most important finding place of the natural quartz crystals in desired size and quality is located in Brazil. Growing demand for quartz crystals for resonators tend to the... [Pg.125]

R. A, Heising Quartz Crystal for Electrical Circuits -Their Design ami Manufacture, van Nostrand, New York 1947, p. 16. [Pg.1057]

Quartz is a piezoelectric material, which vibrates when a voltage is applied. Quartz crystals became used as a time standard with the first quartz clock in 1927. Quartz crystals for watches have been mass-produced since the 1970s. The cut and shape of the actual quartz crystal determine the frequency of the quartz oscillator. [Pg.918]

See other pages where Quartz crystal for is mentioned: [Pg.243]    [Pg.402]    [Pg.632]    [Pg.707]    [Pg.839]    [Pg.870]    [Pg.918]    [Pg.965]    [Pg.993]    [Pg.1036]    [Pg.1063]    [Pg.148]    [Pg.125]    [Pg.162]    [Pg.218]    [Pg.243]    [Pg.402]    [Pg.632]    [Pg.462]    [Pg.35]    [Pg.462]    [Pg.129]    [Pg.1277]    [Pg.118]    [Pg.136]    [Pg.1015]    [Pg.148]    [Pg.222]   
See also in sourсe #XX -- [ Pg.360 ]



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