ponentwhichcantransformthephysicalquantity,,urrent,thefrequency,thepulseandsoon,whichcansatisfythesignaltransmission,processing,recording,,:1SensorElementsAlthoughthereareexception,,diaphragms,bellows,straintubesandrings,bourdontubes,,resistance,capacitance,,icandchemical,givingthermoelectric,photoelectric,ic,=output-signalincrement/,thesensorsensitivityisusuallyknown,and,bymeasuringtheoutputsignal,theinputquantityisdeterminedfrominput=output-signalincrement/.(a)highfidelity-thesensoroutputwaveformshapebeafaithfulreproductionofthemeasured;thereshouldbeminimumdistortion.(b)Thereshouldbeminimuminterferencewiththequantitybeingmeasured;thepresenceofthesensorshouldnotalterthemeasuredinanyway.(c).(d)Thereshouldbealinearrelationshipbetweenthemeasuredandthesensorsignal.(e)Thesensorshouldhaveminimumsensitivitytoexternaleffects,pressuresensor,forexample,areoftensubjectedtoexternaleffectssuchvibrationandtemperature.(f)Thenaturalfrequencyofthesensorshouldbewellseparatedfromthef
自动化专业外文文献 来自淘豆网m.daumloan.com转载请标明出处.
