Measuring steady or quasi-steady pressure of a fluid or a 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

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

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

Child Classifications

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• G01L 9/02 by making use of variations in ohmic resistance, e.g. of potentiometers
• G01L 9/08 by making use of piezoelectric devices
• G01L 9/1 by making use of variations in inductance
• G01L 9/12 by making use of variations in capacitance
• G01L 9/14 involving the displacement of magnets, e.g. electromagnets
• G01L 9/16 by making use of variations in the magnetic properties of material resulting from the application of stress
• G01L 9/18 by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electric potential is produced or varied upon the application of stress