IPC 6 English version  G01R-G01R01166
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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.

1/

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]

1/

02

. 

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

1/

04

. . 

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

1/

06

. . 

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]

1/

067

. . . 

Measuring probes [3]

1/

07

. . . . 

Non contact-making probes [6]

1/

073

. . . . 

Multiple probes [3]

1/

08

. . 

Pointers; Scales, Scale illumination

1/

10

. . 

Arrangements of bearings (bearings in general F 16 C)

1/

12

. . . 

of strip or wire bearings

1/

14

. . 

Braking arrangements; Damping arrangements

1/

16

. . 

Magnets (in general H 01 F)

1/

18

. . 

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

1/

20

. 

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)

1/

22

. . 

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

1/

24

. . 

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

1/

26

. . . 

with linear movement of probe

1/

28

. 

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

1/

30

. 

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

1/

36

. 

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

1/

38

. 

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

1/

40

. 

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

1/

42

. . 

thermally operated

1/

44

. 

Modifications of instruments for temperature compensation [2]

3/

00

Apparatus or processes specially adapted for the manufacture of measuring instruments

5/

00

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

5/

02

. 

Moving-coil instruments

5/

04

. . 

with magnet external to the coil

5/

06

. . 

with core magnet

5/

08

. . 

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

5/

10

. 

String galvanometers

5/

12

. 

Loop galvanometers

5/

14

. 

Moving-iron instruments

5/

16

. . 

with pivoting magnet

5/

18

. . 

with pivoting soft iron, e.g. needle galvanometer

5/

20

. 

Induction instruments e.g. Ferraris instruments

5/

22

. 

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

5/

24

. . 

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

5/

26

. . 

operated by deformation of a bimetallic element

5/

28

. 

Electrostatic instruments (combined with radiation detector G 01 T)

5/

30

. . 

Leaf electrometers

5/

32

. . 

Wire electrometers; Needle electrometers

5/

34

. . 

Quadrant electrometers

7/

00

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

7/

02

. 

for forming a sum or a difference

7/

04

. 

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

7/

06

. . 

moving-iron type

7/

08

. . 

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

7/

10

. . . 

having more than two moving coils

7/

12

. 

for forming product

7/

14

. . 

moving-iron type

7/

16

. . 

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

7/

18

. . . 

with iron core magnetically coupling fixed and moving coils

9/

00

Instruments employing mechanical resonance

9/

02

. 

Vibration galvanometers, e.g. for measuring current

9/

04

. 

using vibrating reeds, e.g. for measuring frequency

9/

06

. . 

magnetically driven

9/

08

. . 

piezo-electrically driven

11/

00

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/

02

. 

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

11/

04

. . 

Housings; Supporting racks; Arrangements of terminals

11/

06

. . 

Magnetic circuits of induction meters [2]

11/

067

. . . 

Coils therefor [2]

11/

073

. . . 

Armatures therefor [2]

11/

09

. . . . 

Disc armatures [2]

11/

10

. . 

Braking magnets; Damping arrangements

11/

12

. . 

Arrangements of bearings (bearings in general F 16 C)

11/

14

. . . 

with magnetic relief

11/

16

. . 

Adaptations of counters to electricity meters

11/

17

. . 

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

11/

18

. . . 

Compensating for variations in ambient conditions [2]

11/

185

. . . . 

Temperature compensation [2]

11/

19

. . . 

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

11/

20

. . . 

Compensating for phase errors in induction meters [2]

11/

21

. . . 

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

11/

22

. . . 

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

11/

23

. . . 

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

11/

24

. . 

Arrangements for avoiding or indicating fraudulent use [4]

11/

25

. . 

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/

30

. 

Dynamo-electric motor meters

11/

32

. . 

Watt-hour meters

11/

34

. . 

Ampère-hour meters

11/

36

. 

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

11/

38

. . 

for single-phase operation

11/

40

. . 

for polyphase operation

11/

42

. . . 

Circuitry therefor

11/

46

. 

Electrically-operated clockwork meters; Oscillatory meters; Pendulum meters

11/

48

. 

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

11/

50

. . 

for measuring real component

11/

52

. . 

for measuring reactive component

11/

54

. . 

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

11/

56

. 

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

11/

57

. . 

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

11/

58

. . . 

Tariff-switching devices therefor [2]

11/

60

. . 

Subtraction meters; Meters measuring maximumor minimum-load hours

11/

63

. . 

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

11/

64

. . 

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

11/

66

. . . 

Circuitry
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