Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

GPHYSICS G01Measuring instruments G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE

G01L7/00Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

G01L7/02in the form of elastically-deformable gauges G01L7/022constructional details G01L7/024with mechanical transmitting or indicating means G01L7/026with optical transmitting or indicating means G01L7/028correcting or regulating means G01L7/04in the form of flexible, deformable tubes G01L7/041Construction or mounting of deformable tubes G01L7/043with mechanical transmitting or indicating means G01L7/045with optical transmitting or indicating means G01L7/046with exhausted tubes G01L7/048correcting or regulating means for flexible, deformable tubes G01L7/06of the bellows type G01L7/061construction or mounting of bellows G01L7/063with mechanical transmitting or indicating means G01L7/065with optical transmitting or indicating means G01L7/066with exhausted bellows G01L7/068correcting or regulating means for bellows G01L7/08of the flexible-diaphragm type G01L7/082construction or mounting of diaphragms G01L7/084with mechanical transmitting or indicating means G01L7/086with optical transmitting or indicating means G01L7/088correcting or regulating means for flexible diaphragms G01L7/10of the capsule type G01L7/102construction or mounting of capsules G01L7/104with mechanical transmitting or indicating means G01L7/106with optical transmitting or indicating means G01L7/108correcting or regulating means for capsules G01L7/12with exhausted chamber Aneroid barometers G01L7/14with zero-setting means G01L7/16in the form of pistons G01L7/163construction or mounting of pistons G01L7/166with mechanical transmitting or indicating means G01L7/18using liquid as the pressure-sensitive medium G01L7/182constructional details G01L7/185with mechanical transmitting or indicating means G01L7/187with optical transmitting or indicating means G01L7/20involving a closed chamber above the liquid level, the chamber being exhausted or housing low-pressure gas liquid barometers G01L7/22involving floats G01L7/24involving balances in the form of rings partly filled with liquid