MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)

Introduced: September 1968

Description

G01L covers instruments and methods for quantifying mechanical forces, stresses, torques, and related quantities in physical systems. This subclass encompasses load cells, pressure transducers, dynamometers, strain gauges, and force sensors used across industrial, scientific, and engineering applications. The classification includes devices for measuring static and dynamic mechanical parameters, as well as those determining mechanical work, power output, and efficiency in mechanical systems. Related pressure measurement technologies, particularly for fluids, fall within this scope, while purely electrical power measurement is excluded.

Title

Titles differ between systems:

IPC: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

CPC: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)

Full Title

Full titles differ between systems:

IPC:

MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

CPC:

MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)

IPC and CPC are identically structured here. All 14 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01L 1/00 Measuring force or stress, in general (measuring force due to impact G01L5/00) +1 CPC IPC+CPC Available in IPC and CPC
G01L 11/00 Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 +2 CPC IPC+CPC Available in IPC and CPC
G01L 13/00 Devices or apparatus for measuring differences of two or more fluid pressure values IPC+CPC Available in IPC and CPC
G01L 15/00 Devices or apparatus for measuring two or more fluid pressure values simultaneously IPC+CPC Available in IPC and CPC
G01L 17/00 Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies +1 CPC IPC+CPC Available in IPC and CPC
G01L 19/00 Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges +4 CPC IPC+CPC Available in IPC and CPC
G01L 21/00 Vacuum gauges IPC+CPC Available in IPC and CPC
G01L 23/00 Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid IPC+CPC Available in IPC and CPC
G01L 25/00 Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency +2 CPC IPC+CPC Available in IPC and CPC
G01L 27/00 Testing or calibrating of apparatus for measuring fluid pressure +2 CPC IPC+CPC Available in IPC and CPC
G01L 3/00 Measuring torque, work, mechanical power, or mechanical efficiency, in general IPC+CPC Available in IPC and CPC
G01L 5/00 Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes +8 CPC IPC+CPC Available in IPC and CPC
G01L 7/00 Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements ( transmitting or indicating the displacement of mechanical pressure-sensitive elements by electric or magnetic means G01L9/00; measuring differences of two or more pressure values G01L13/00; measuring two or more pressure values simultaneously G01L15/00) IPC+CPC Available in IPC and CPC
G01L 9/00 Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements ; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (measuring differences of two or more pressure values G01L13/00; measuring two or more pressure values simultaneously G01L15/00) +8 CPC IPC+CPC Available in IPC and CPC