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MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES
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Industry
CPC
G01R
Parent Industries
G
PHYSICS
G01
Measuring instruments
Current Industry
G01R
MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES
Sub Industries
G01R1/00
Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
G01R11/00
Electromechanical arrangements for measuring time integral of electric power i.e. electric energy or current
G01R13/00
Arrangements for displaying electric variables or waveforms
G01R15/00
Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
G01R17/00
Measuring arrangements involving comparison with a reference value
G01R19/00
Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R21/00
Arrangements for measuring electric power or power factor
G01R22/00
Arrangements for measuring time integral of electric power or current
G01R23/00
Arrangements for measuring frequencies Arrangements for analysing frequency spectra
G01R25/00
Arrangements for measuring phase angle between a voltage and a current, or between voltages or currents
G01R27/00
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
G01R29/00
Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
G01R3/00
Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments
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
G01R33/00
Arrangements or instruments for measuring magnetic variables
G01R35/00
Testing or calibrating of apparatus covered by the preceding groups
G01R5/00
Instruments for converting a single current or a single voltage into a mechanical displacement
G01R7/00
Instruments capable of converting two or more currents or voltages into a single mechanical displacement
G01R9/00
Instruments employing mechanical resonance
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