A servocontroller for programming sample vaporization in direct current arc spectrochemical analysis
National Aeronautics and Space Administration, 1968 - Science - 31 pages
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The ultimate Hollywood tour book: the incomparable guide to movie stars ...
William A. Gordon
No preview available - 1997
30 amperes achieved AgCl vaporized alinement amperes amplifier anode cavity antifog tube arc column arc current arc in air arc in argon arc in static arc light arc methods argon arc atomic emission atomic line caused circuit closed-loop control constant current control of AgCl control of spectral control sample vaporization current range curve-following programmer dc arc dc source diagram DIRECT CURRENT electrodes emission signal graphite cathode independent of arc instantaneous integral gain internal standard line emission milligrams of AgCl modes of control multiplier phototube optical optical window percent plasma proportional gain quartz cylinder readout reference signal relative standard deviation resultant control signal sample arcings shown in figure silver chloride Spatially Stable Light spectral intensities spectral light intensities spectral line intensities spectrograph spectrometer stabilized arc stable control Stable Light Emission strip-chart recorder Strip-chart traces Ta-tipped graphite thyratron unstable arcs V(ec vapor concentration vaporization of AgCl voltage wandering arc