G01R 27/02 Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
CPC: Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00)
Full Title
Full titles differ between systems:
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom > Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom > Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00)
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G01R 27/08 Measuring resistance by measuring both voltage and current IPC+CPC Available in IPC and CPC
- G01R 27/14 Measuring resistance by measuring current or voltage obtained from a reference source (G01R27/16, G01R27/20, G01R27/22 take precedence) IPC+CPC Available in IPC and CPC
- G01R 27/16 Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line IPC+CPC Available in IPC and CPC
- G01R 27/20 Measuring earth resistance; Measuring contact resistance, of earth connections, e.g. plates +1 CPC IPC+CPC Available in IPC and CPC
- G01R 27/26 Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants +4 CPC IPC+CPC Available in IPC and CPC