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G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections
(AREA)
Dispositif permettant de faire apparaître, sur une courbe rendue visible sur l'écran d'un tube cathodique, un repère correspondant à une fréquence déterminée.