IPC 6 English version G01R !A-G01R 11/66

G01R-G01R01166

SECTION G– PHYSICS

G 01

MEASURING (counting G 06 M); TESTING

G 01 R

MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (measuring physical variables of any kind by conversion into electric variables, see Note (4) following the title of class G 01; measuring diffusion of ions in an electric field, e.g. electrophoresis, electro-osmosis, G 01 N; investigating non-electric or non-magnetic properties of materials by using electric or magnetic methods G 01 N; indicating correct tuning of resonant circuits H 03 J 3/12; monitoring electronic pulse counters H 03 K 21/40; monitoring operation of communication systems H 04)

Notes

(1)

This subclass covers:

–

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; [5]

–

equipment for generating signals to be used for carrying out such tests and measurements.

(2)

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;

(3)

Attention is drawn to the Notes following the title of class G 01.

(4)

In this subclass, group G 01 R 17/00 takes precedence over groups G 01 R 19/00 to G 01 R 31/00.

Details of instruments or arrangements of the types included in groups G 01 R 5/00 to G 01 R 13/00 (constructional details particular to arrangements for measuring the electric consumption G 01 R 11/02) [3]

General constructional details (details of a kind applicable to measuring arrangements not specially adapted for a specific variable G 01 D 7/00)

Housings; Supporting members; Arrangements of terminals (terminals H 01 R; terminal strips or boards H 02 B; housings for electrical apparatus H 05 K)

Measuring leads; Measuring probes (G 01 R 19/145, G 01 R 19/165 take precedence; end pieces for leads H 01 R 11/00) [3]

067

Measuring probes [3]

Non contact-making probes [6]

073

Multiple probes [3]

Pointers; Scales, Scale illumination

Arrangements of bearings (bearings in general F 16 C)

of strip or wire bearings

Braking arrangements; Damping arrangements

Magnets (in general H 01 F)

Screening arrangements against electric or magnetic fields, e.g. against earth's field

Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments (instrument transformers per se H 01 F 38/20)

Tong testers acting as secondary windings of current transformers (voltage or current isolation using transformers G 01 R 15/18)

Transmission-line, e.g. waveguide, measuring sections, e.g. slotted section

with linear movement of probe

Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform

Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier

Overload-protection arrangements or circuits for electric measuring instruments (in general H 02 H)

Arrangements for altering the indicating characteristic, e.g. by modifying the air gap (circuits G 01 D 3/02)

Modifications of instruments to indicate the maximum or the minimum value reached in a time interval, e.g. by maximum indicator pointer [3]

thermally operated

Modifications of instruments for temperature compensation [2]

Apparatus or processes specially adapted for the manufacture of measuring instruments

Instruments for converting a single current or a single voltage into a mechanical displacement (vibration galvanometers G 01 R 9/02)

Moving-coil instruments

with magnet external to the coil

with core magnet

specially adapted for wide angle deflection; with eccentrically-pivoted moving coil

String galvanometers

Loop galvanometers

Moving-iron instruments

with pivoting magnet

with pivoting soft iron, e.g. needle galvanometer

Induction instruments e.g. Ferraris instruments

Thermoelectric instruments (measuring effective values of currents or voltages using thermoconverters G 01 R 19/03)

operated by elongation of a strip or wire or by expansion of a gas or fluid

operated by deformation of a bimetallic element

Electrostatic instruments (combined with radiation detector G 01 T)

Leaf electrometers

Wire electrometers; Needle electrometers

Quadrant electrometers

Instruments capable of converting two or more currents or voltages into a single mechanical displacement (G 01 R 9/00 takes precedence)

for forming a sum or a difference

for forming a quotient (for measuring resistance G 01 R 27/08)

moving-iron type

moving-coil type, e.g. crossed-coil type

having more than two moving coils

for forming product

moving-iron type

having both fixed and moving coils, i.e. dynamometers

with iron core magnetically coupling fixed and moving coils

Instruments employing mechanical resonance

Vibration galvanometers, e.g. for measuring current

using vibrating reeds, e.g. for measuring frequency

magnetically driven

piezo-electrically driven

11/

Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption (other arrangements therefor G 01 R 22/00; monitoring electric consumption of electrically-propelled vehicles B 60 L 3/00)

11/

Constructional details (applicable to electric measuring instruments in general G 01 R 1/00)

11/

Housings; Supporting racks; Arrangements of terminals

11/

Magnetic circuits of induction meters [2]

11/

067

Coils therefor [2]

11/

073

Armatures therefor [2]

11/

Disc armatures [2]

11/

Braking magnets; Damping arrangements

11/

Arrangements of bearings (bearings in general F 16 C)

11/

with magnetic relief

11/

Adaptations of counters to electricity meters

11/

Compensating for errors; Adjusting or regulating means therefor [2]

11/

Compensating for variations in ambient conditions [2]

11/

185

Temperature compensation [2]

11/

Compensating for errors caused by disturbing torque, e.g. rotating-field errors of polyphase meters [2]

11/

Compensating for phase errors in induction meters [2]

11/

Compensating for errors caused by damping effects of the current, e.g. adjustment in the overload range [2]

11/

Adjusting torque, e.g. adjusting starting torque, adjusting of polyphase meters for obtaining equal torques [2]

11/

Compensating for errors caused by friction, e.g. adjustment in the light-load range [2]

11/

Arrangements for avoiding or indicating fraudulent use [4]

11/

Arrangements for indicating or signalling faults [2,4]

Note

Groups G 01 R 11/48 to G 01 R 11/66 take precedence over groups G 01 R 11/30 to G 01 R 11/46. [4]

11/

Dynamo-electric motor meters

11/

Watt-hour meters

11/

Ampère-hour meters

11/

Induction meters, e.g. Ferraris meters (Ferraris instruments G 01 R 5/20)

11/

for single-phase operation

11/

for polyphase operation

11/

Circuitry therefor

11/

Electrically-operated clockwork meters; Oscillatory meters; Pendulum meters

11/

Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy

11/

for measuring real component

11/

for measuring reactive component

11/

for measuring simultaneously at least two of the following three variables: real component, reactive component, apparent energy

11/

Special tariff meters (tariff metering in general G 01 D 4/00)

11/

Multi-rate meters (G 01 R 11/63 takes precedence) [2]

11/

Tariff-switching devices therefor [2]

11/

Subtraction meters; Meters measuring maximumor minimum-load hours

11/

Over-consumption meters, e.g. measuring consumption while a predetermined level of power is exceeded [2]

11/

Maximum meters, e.g. tariff for a period is based on maximum demand within that period

11/

Circuitry

G01R 13/00 - G01R 21/14