Process and device for detecting frequency variations
Process and device for determining a parameter associated with a
Process and device for short-circuit monitoring of electrical li
Process and device for the nondestructive measurement of materia
Process and system for the determination of a longitudinal equiv
Process for measuring the electrical properties of liquids and g
Process of and apparatus for non-destructive eddy current testin
Programmable detector for tone signals
Programmable frequency detector
Prospecting system using rotating superconducting electromagneti
Protective system for a capacitor voltage transformer
Protector module test set
Pulse detector for determining phase relationship between...
Pulse generator, timing generator, and pulse width adjusting...
Pulse modulated wave measuring device
Pulse period to frequency conversion system
Pulse train analyzer
Pulsed DC transient conductivity measurement system
Pulsed loop antenna-conduit electromagnetic radiator test techni
Pulsed plasma probe