Chemical Instrumentation: A Systematic Approach to Instrumental AnalysisAddison-Wesley Publishing Company, 1960 - 653 pagine |
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Risultati 1-3 di 82
Pagina 288
... temperatures a few electrons will acquire sufficient thermal energy to overcome the work function . As the temperature is raised , more will be emitted . The relation describing the current density of emission is the Richardson equation ...
... temperatures a few electrons will acquire sufficient thermal energy to overcome the work function . As the temperature is raised , more will be emitted . The relation describing the current density of emission is the Richardson equation ...
Pagina 434
... temperature , t1 is the temperature of the wire , t2 is the temperature of the wall , km is the thermal conductivity of the gas at its mean tempera- ture , and a is the cell constant . The temperature coefficient of k can also be ...
... temperature , t1 is the temperature of the wire , t2 is the temperature of the wall , km is the thermal conductivity of the gas at its mean tempera- ture , and a is the cell constant . The temperature coefficient of k can also be ...
Pagina 435
... temperature over small temperature ranges . or AR = a R. At Ak AR = - a Ro - km ( tı — t2 ) , ( 14-9 ) where a is the temperature coefficient of the resistance of the element and R. is its resistance at temperature t1 . To improve the ...
... temperature over small temperature ranges . or AR = a R. At Ak AR = - a Ro - km ( tı — t2 ) , ( 14-9 ) where a is the temperature coefficient of the resistance of the element and R. is its resistance at temperature t1 . To improve the ...
Sommario
THE SCIENCE OF INSTRUMENTATION | 1 |
ERRORS OF MEASUREMENT | 14 |
CHAPTER 3 | 37 |
Copyright | |
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Chemical Instrumentation: A Systematic Approach to Instrumental Analysis Howard A. Strobel Visualizzazione estratti - 1960 |
Parole e frasi comuni
absorbance absorption acid amplifier analysis analyzed angle anode applied atoms band beam Beer's law calibration calomel capacitance capacitor cathode cell Chem chemical circuit components concentration conductance constant coulometric curve detection detector determined device diffusion diode dispersion drop effect electrical electrode electrolysis electron tube emission end point energy error example filter frequency galvanometer glass grid incident input instrument intensity ionization ions layer liquid measurement mercury metal meter method mixture molecules obtained operation optical optical rotation output oxidized particles pH meter photometer phototube plate current platinum polarized polarographic potential potentiometer precision prism procedure quantitative radiation range reactance reaction reflection refractive index region resistance resistor result rotation sample sawtooth wave scattering schematic Section sensitivity shown in Fig signal slit solution solvent species spectra spectrophotometer spectrum standard substance techniques temperature thyratron tion titration transistor triode variable vibrational voltage wave wavelength