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BASIC THEORY AND DEFINITIONS
TYPES OF METER MOVEMENTS
25 other sections not shown
alternating current amplifier anode applications basic beam bias block diagram blood capacitance capacitor cathode cause cell Chapter charge circuit circuitry coil common conductor crystal current flow curve decreases deflection detected detectors device diathermy diode distortion dynode effects electrical electromagnetic electrons element emission emitted emitter energy equipment feedback filter frequency function galvanometer grid ground holes impedance increase inductance inductor input signal instrument ionization magnetic field material measuring metal meter monitoring movement multivibrator N-type negative ohms operation operational amplifier oscillator oscilloscope output signal P-N junction pacemaker patient phase photodiode photomultiplier plate positive potential power supply pressure produce pulse radiation RC circuit reactance resistance resistor result schematic Schmitt trigger secondary semiconductor sensitivity shown in Figure simplified switch techniques temperature tissue transducer transistor trigger typical ultrasonic ultrasound vacuum tube voltage volts wave waveforms wire Zener diode zero