Basic Electrical Measurements |
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Page 183
... balance point for R1 more precisely than before . Alternate adjustments of R1 and R3 should soon yield practically zero response of the detector . ( Later we shall discuss grounding and shielding of the bridge elements . This is ...
... balance point for R1 more precisely than before . Alternate adjustments of R1 and R3 should soon yield practically zero response of the detector . ( Later we shall discuss grounding and shielding of the bridge elements . This is ...
Page 186
... balance and gives the effect known as " sliding balance " when R1 and R3 ( or R2 ) are used for the balance adjustments . The term " sliding balance " describes a condition of interaction between the controls , so that when we balance ...
... balance and gives the effect known as " sliding balance " when R1 and R3 ( or R2 ) are used for the balance adjustments . The term " sliding balance " describes a condition of interaction between the controls , so that when we balance ...
Page 213
... balance , the rest of the resistors remaining the same ? Assume the sensitivity of the detector is ample to detect the balance point with no additional uncertainty . = 9-11 . A bridge is made of the following parts : arm AB ...
... balance , the rest of the resistors remaining the same ? Assume the sensitivity of the detector is ample to detect the balance point with no additional uncertainty . = 9-11 . A bridge is made of the following parts : arm AB ...
Contents
DEVELOPMENT OF THE ELECTRICAL UNITS | 1 |
EXPERIMENTAL PROCEDURES ERRORS | 13 |
AIDS TO COMPUTATION | 39 |
Copyright | |
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accuracy adjustment alternating current ammeter amount ampere arrangement balance battery bridge circuit burden C₁ calibration capacitance capacitor cent comparison component computed condenser connected constant construction convenient copper correct Courtesy critical damping current transformer curve decade deflection detector diagram dial dissipation factor effect electrical electrodes electrodynamometer equal equation factor field Figure flux frequency galvanometer gives impedance increase indicated inductor instrument insulating laboratory load magnetic Maxwell bridge measurements ment meter method number of turns ohmmeter ohms oscillator oscillograph parallel phase angle pointer potential transformer potentiometer primary quantity R₁ R₂ Radio range ratio arms reactance reading reference resistance resistor result rheostat scale search coil secondary sensitivity shield shown in Fig shows shunt slide wire standard cell switch temperature terminals thermocouple Thevenin's theorem tion torque unbalance units unknown vector voltage voltmeter wattmeter Wheatstone bridge winding zero