Descriptions for G01R and notes/indexes are displayed on this screen.
| G01R
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MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J 3/12)
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Note(s)
This subclass covers:[5,8]measuring all kinds of electric or magnetic variables directly or by derivation from other electric or magnetic variables;measuring all kinds of electric or magnetic properties of materials;testing electric or magnetic devices, apparatus or networks (e.g. discharge tubes, amplifiers) or measuring their characteristics;indicating presence or sign of current or voltage;NMR, EPR or other spin-effect apparatus, not specially adapted for a particular application;equipment for generating signals to be used for carrying out such tests and measurements. In this subclass, the following terms or expressions are used with the meanings indicated:"measuring" includes investigating;"instruments" or "measuring instruments" means electro-mechanical measuring mechanisms;"arrangements for measuring" means apparatus, circuits, or methods for measuring; Attention is drawn to the Notes following the title of class G01.In this subclass, instruments or arrangements for measuring electric variables are classified in the following way:Electromechanical instruments where the measured electric variables direcly effect the indication of the measured value, including combined effects of two or more values, are classified in groups G01R 5/00-G01R 11/00.Details common to different types of the instruments covered by groups G01R 5/00-G01R 11/00 are classified in group G01R 1/00.Arrangements involving circuitry to obtain an indication of a measured value by deriving, calculating or otherwise processing electric variables, e.g. by comparison with another value, are classified in groups G01R 17/00-G01R 29/00.Details common to different types of arrangements covered by groups G01R 17/00-G01R 29/00 are classified in group G01R 15/00. In this subclass, group G01R 17/00 takes precedence over groups G01R 19/00-G01R 31/00.
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Subclass indexes
ELECTRIC MEASURING INSTRUMENTS | In general | 5/00, 7/00, 9/00 | Details | 1/00 | Manufacture; calibrating, testing | 3/00; 35/00 | ELECTROMECHANICAL MEASUREMENT OF TIME INTEGRAL OF POWER OR CURRENT | 11/00 | MEASURING ELECTRIC VARIABLES | Details of measuring arrangements | 11/02, 15/00 | Arrangements for displaying | 13/00 | Involving comparison with a reference value | 17/00 | Current or voltage; power, power factor; time integral of power or current; frequency; resistance, reactance, impedance | 19/00; 21/00; 22/00; 23/00; 27/00 | Other variables | 25/00, 29/00 | TESTING ELECTRIC PROPERTIES OR LOCATING FAULTS | 31/00 | MEASURING MAGNETIC VARIABLES | 33/00 |
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