Apparatus for measurement

Fig. 11-13. Apparatus for measuring the time dependence of interfacial tension (from Ref. 34). The air and aspirator connections allow for establishing the desired level of ftesh surface. IV denotes the Wilhelmy slide, suspended from a Cahn electrobalance with a recorder output.

Fig. V-17. Schematic diagram for the apparatus for measurement of Vobs (see text). The vibrating reference electrode is positioned close to the surface of a AgN03 solution in which there is an Ag electrode, which, in turn, is in electrical contact with the reference electrode. (From Ref. 196.)...

Fig. 5. Wall friction test (a) apparatus for measurement, and (b) results, where is the wall friction angle.

Fig. 5.18 Diagram of Apparatus for Measuring Melt Flow Index...

Kohlensaure-messer, m. instrument or apparatus for measuring carbon dioxide, an-thracometer, carbonometer. -saJz, n, carbonate. -schnee, m. carbon dioxide snow, dry ice. -Strom, m. stream or current of carbon dioxide, -verflussigung, /. liquefaction of carbon dioxide, -verlust, m. loss (or escape) of carbon dioxide, -wasche,/, carbon dioxide washer, -wasser, n, carbonated water, soda water. 

Electrical resistance thermometers, the most widely used of which is Callendar s platinum resistance thermometer. This is probably the most convenient and accurate apparatus for measuring temperatures between the boiling-point of liquid air (—190° C.) and the melting-point of platinum (1,500° C.). Lead has recently been applied at very low temperatures. 

The osmotic pressure is a property that has proven to be especially valuable in the study of solutions of macromolecules, including those of biologic and polymeric interest. The apparatus for measuring this quantity is shown schematically in Figure 7.10. Two compartments are separated by a membrane that will allow the flow of liquid solvent between the two chambers. If solvent is added, flow will occur until the liquid level on the two sides of the membrane is the same. 

Figure 7.10 Schematic representation of the apparatus for measuring osmotic pressure. The flow of solvent through the semipermeable membrane is followed by observing the movement of the meniscus of the flow indicator. The osmotic pressure II is the pressure that must be applied to the solution to prevent the flow.

Figure 4.8. (a) Experimental apparatus for measuring the catalyst-electrode metal/gas interface area AG- (b) typical yco2 peak obtained upon reacting the preadsorbed O with C2H4 or CO its area gives N0. (c) Plot of N0 vs the 02 desorption time, tHe, to obtain Nc. 

T. Shimokawatoko, K. Sumida, and H. Ueda. Method and apparatus for measuring odorant concentration and oderant adding system. Patent US 5844124, 1998. 

FIG. 4 Apparatus for measuring electrical signals in green plants. Frequency of scanning is up to 5000 (a) or 1000 (b) samples per second. 

FIG. 3 Apparatus for measuring electrical potential oscillation across the octanol membrane (a) octanol phase, (b) aqueous phase, (c) Ag/AgCl reference electrode, (d) KCl salt bridge, (e) saturated KCl, and (f) potentiometer. 

B) Apparatus for measurement of overvoltage at an electrode as a function of current density. 

Figure 5 Apparatus for measurement of photoelectrochemical decomposition of water into hydrogen and oxygen. (Reproduced with permission from Ref. 10. Copyright 1987 The Ceramic Society of Japan.)...

Fig. 13.3 Experimental apparatus for measuring MBSL spectrum using ultrasonic standing waves...

An apparatus for measuring the UV-visible spectrum of a nanoparticle dispersion under pressurized conditions is shown in Figure 2.2 [16, 19, 20]. This apparatus... 

Shimamori and Hatano (1976) describe a Febetron-injected microwave cavity apparatus for measuring electron concentration following pulse irradiation. Its application to thermalization in Ar and CH4 is similar to the method of Warman and Sauer (1975). In a related experiment, Hatano et al. (private communication) measure the electron collision frequency directly. 

An obsolescent name for any apparatus for measuring resilience, formerly commonly applied to the Lupke Pendulum. 

An apparatus for measuring the dynamic modulus and hysteresis of elastomers. The stress-strain oscillogram is shown on a ground-glass screen by means of an optical system. Now superseded by modem computer controlled servo hydraulic and dynamic mechanical thermal analysis machines. Roll Bending... 

An apparatus for measuring the viscosity of unvulcanised elastomers. The best known is the Mooney viscometer. 

Sasse, K., Jose, J., Merlin, J.-C. (1988) A static apparatus for measurement of low vapor pressures. Experimental results on high molecular-weight hydrocarbons. Fluid Phase Equil. 42, 287-304. 

Fig. 13 Schematic diagrams of various types of apparatus for measuring the dissolution...

Figure 3 Scheme of the apparatus for measurement of PCL. 1, Vessel for irradiation of a photosensitizer-containing solution 2, UV lamp 3, shutter 4, injection tube 5, peristaltic pump 6, measuring cell 7, photomultiplier 8, computer. (From Ref. 45.)... 

G.J. O Hara, D.B. Philips, Method and apparatus for measuring internal body temperature utilizing infrared emissions . U.S. Patent 4602642 (1986). 

Figure 5.15. Pressure apparatus for measuring the amount of water held in soil at different pressures the pressure gage is to the left and a pressure plate is on top of the vessel.

R. H. Biddulph, P. H. Plesch, A New Versatile Apparatus for Measuring the Rates of Fast Liquid-Phase Reactions, Chem. and Ind., 1959, 1482. 

Figure 15.10. Simple apparatus for measuring metastable zone widths 36 ...

Despite the technical advances in the past decade, no apparatus for measurement of the odour strength has been developed. Therefore, odour pollution studies cannot be performed without using human noses. In general, the efect of polluting odours can be studied either by direct assessment in the ambient air or by means of a dispersion calculation. The first method requires a number of observers to be placed in the vincinity of the odour source (3,7). The latter a dispersion model and an input value. For reasons of simplicity this method is most frequently used in the Netherlands. 

Figure 9.12 Apparatus for measurement of reductive metabolism of selenite.

Figure 15.3. Schematic diagram of apparatus for measurement of osmotic pressure.

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