G01L

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Description

MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (methods or devices for measuring specially adapted for metal-rolling mills B21B 38/00; sensing pressure changes for compensating measurements of other variables or for compensating readings of instruments for variations in pressure, see G01D or other relevant subclasses for the variable measured; weighing G01G; scanning-probe techniques using atomic force microscopy G01N 13/16; converting a pattern of forces into electrical signals G06K 11/00)

Subclasses

SubclassTitle
1/00 Measuring force or stress, in general (measuring force due to impact G01L 5/00 )
1/02 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by hydraulic or pneumatic means
1/04 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring elastic deformation of gauges, e.g. of springs
1/06 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring the permanent deformation of gauges, e.g. of compressed bodies
1/08 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by the use of counterbalancing forces
1/10 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings (using resistance strain gauges G01L 1/22)
1/12 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations in the magnetic properties of materials resulting from the application of stress
1/14 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
1/16 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) using properties of piezo-electric devices
1/18 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
1/20 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids (of piezo-resistive materials G01L 1/18); by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
1/22 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids (of piezo-resistive materials G01L 1/18); by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
1/24 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
1/25 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) using wave or particle radiation, e.g. X-rays, neutrons (G01L 1/24 takes precedence)
1/26 Measuring force or stress, in general (measuring force due to impact G01L 5/00 ) Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
3/00 Measuring torque, work, mechanical power, or mechanical efficiency, in general
3/02 Measuring torque, work, mechanical power, or mechanical efficiency, in general Rotary-transmission dynamometers
3/04 Measuring torque, work, mechanical power, or mechanical efficiency, in general Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
3/06 Measuring torque, work, mechanical power, or mechanical efficiency, in general Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving mechanical means for indicating
3/08 Measuring torque, work, mechanical power, or mechanical efficiency, in general Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving optical means for indicating

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