Precision Measurement and Calibration: Electricity

accuracy adaptor adjusted ammeter amplifier amplitude approximately attenuator bolometer mount bridge Bureau of Standards calibration calorimeter capacitance cavity characteristic impedance characteristics circuit coaxial line component conductor connectors constant detector device device under test dielectric diode dipole directional coupler effect efficiency Electronic equations field-strength meter frequency range function IEE London IEEE Trans impedance input insertion loss instrument IRE Trans laser limits load magnitude ment method Microwave Theory mismatch error modulation National Bureau noise temperature null obtained ohms oscilloscope output peak percent phase shifter power measurement power meter precision probe Proc pulse pulse power quency R. W. Beatty Radio ratio reference reflection coefficient reflectometer resistance resonator RF power sampling shown in Fig signal skin effect substitution superconductive Tech technique temperature terminal thermistor thermocouple tion transmission line tuner two-port uncertainty voltage voltmeter VSWR wave waveguide wavelength