Chemical Instrumentation: A Systematic ApproachAddison-Wesley Publishing Company, 1973 - 903 pagine |
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Pagina 169
... phase shift is ( Section 6.3 ) . Recall the feedback loop . If the amplifier introduces an additional phase shift ( beyond the normal 180 ° ) , the feedback may become positive and create instability . As discussed in Section 6.4 , such ...
... phase shift is ( Section 6.3 ) . Recall the feedback loop . If the amplifier introduces an additional phase shift ( beyond the normal 180 ° ) , the feedback may become positive and create instability . As discussed in Section 6.4 , such ...
Pagina 199
... Phase - sensitive demodulation . When S / N < 1 information can still be gleaned from an output if demodulation is carried out in phase with the original chopping signal . In other words , the detector is " turned on " only when the ...
... Phase - sensitive demodulation . When S / N < 1 information can still be gleaned from an output if demodulation is carried out in phase with the original chopping signal . In other words , the detector is " turned on " only when the ...
Pagina 534
... phase . * 1 / 78H and is a measure of the time required for different nuclei to Actually , in liquids and gases ... phase with H , and one 90 ° out of phase with it can be extracted . Their significance can be understood in terms of a ...
... phase . * 1 / 78H and is a measure of the time required for different nuclei to Actually , in liquids and gases ... phase with H , and one 90 ° out of phase with it can be extracted . Their significance can be understood in terms of a ...
Sommario
Measurement and Instrumentation | 1 |
Basic Electrical Variables | 25 |
9 | 47 |
Copyright | |
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Parole e frasi comuni
absorbance absorption amplitude analysis analyzer angle anode applied atoms beam Beer's law capacitance capacitor cathode cell circuit of Fig components concentration constant coulometry curve detection detector determined device diagram differential diode dispersion drop electrical electrode electrolysis emission emitter energy equation example excited feedback filter flame fluorescence frequency grating impedance incident input instrument intensity ionization ions magnetic measurement mercury meter method module molecular molecules monochromator noise obtained Ohm's law operational amplifier optical output voltage oxidation p-n junction peak phase photometer photomultiplier polarized polarography potential potentiometer precision prism proton pulse R₁ R₂ radiation range ratio RC circuit readout redox reduced refractive index resistance resistor resonance result sample scan schematic Section sensitivity shown in Fig signal slit solution species spectral spectrometer spectrophotometer Spectroscopy spectrum substance techniques temperature Thévenin equivalent titration transistor tube V₁ vibrational wave wavelength Wheatstone bridge width ΚΩ