F-Term-List

G01L7/00-23/32;27/00-27/02

AA00
OBJECT TO BE MEASURED OR FIELD OF USE

AA01

AA03

AA05

. Atmospheric pressure

. Underground pressure

. Various parts of human bodies

AA11

AA12

AA13

AA14

AA15

. Sealed bodies

. . Tyres

. . Canned goods or bottled foods

. . Vacuum circuit breakers

. . Vacuum tubes

AA21

AA22

AA23

AA24

AA25

AA26

AA27

AA29

. Internal-combustion engines

. . Engine suction pipes

. . Internal pressure in engine cylinders

. . . Detection of crank angles of engines

. . Pressure of engine lubricating oil

. . Pressure of cooling water of engine

. . Engine exhaust pipes

. Molten metals

AA31

AA39

AA40

. Corrosive fluids

. Others

. No description for this viewpoint

BB00
KIND OF PRESSURE TO BE MEASURED

BB01

BB03

BB05

BB06

BB08

BB10

. Absolute pressure

. Gauge pressure

. Differential pressure

. . Micro differential pressure

. Vacuum

. Negative pressure

BB11

BB12

BB14

BB16

BB19

BB20

. Dynamic pressure and static pressure

. . Injection pressure

. Pulsating pressure

. High pressure

. Others

. No description for this viewpoint

CC00
PRINCIPLE OF MEASURING

CC01

CC02

CC03

CC04

CC05

CC06

CC07

. using pressure-sensitive displacement members

. . Diaphragms

. . Bourdon tubes

. . Bellows

. . Capsules

. . Pistons

. . . Weight types

CC11

CC12

CC14

. Strain elements

. . Cantilevers

. by displacement or deformation of containers or piping per se

CC21

CC22

CC23

CC24

CC25

CC26

CC27

CC28

CC29

. Liquid-column gauges

. . U-tubes

. . Single tubes

. . Inclined manometers

. . Double-liquid manometers

. . Ring balances

. . having sealed vacuum chambers

. . having liquid overflow-preventing means

. . having floats

CC32

CC33

CC34

CC36

. . characterised by liquid level detection means

. . . Electrical resistances

. . . Optical means

. Float-type pressure gauges

CC41

CC42

CC43

CC44

CC45

CC46

CC47

CC48

. adapted for measuring vacuum

. . Compression types

. . Heat types

. . Frictional resistances of gases

. . by electrical discharge

. . . Thermion cathode types

. . . . Driving of filaments

. . . Cold-cathode types

CC51

CC52

CC53

CC54

CC55

CC56

CC59

CC60

. Vibration types

. . Vibrating cylinders

. . Vibrating diaphragms

. . Strings or bands

. . Piezoelectric vibrating elements per se

. . Containers

. Others

. No description for this viewpoint

DD00
MATERIAL OF PRESSURE-SENSITIVE MEMBER

DD01

DD02

DD04

DD05

DD07

DD09

. Metals or alloys

. . amorphous

. Semiconductors

. . Silicon

. Glass

. Ceramics

DD11

DD19

DD20

. Polymer materials

. Others

. No description for this viewpoint

EE00
DETECTION MEANS OF DISPLACEMENT, STRAIN, OR THE LIKE OF PRESSURE-SENSITIVE MEMBER

EE01

EE03

EE04

EE05

EE07

. mechanically transmitting displacement to indicator

. by force-balancing principles

. . mechanical

. . electrical

. Potentiometers

EE11

EE12

EE13

EE14

EE15

EE18

. Strain gauges

. . Resistance wire types

. . Semiconductor types

. . . Diffusion types

. . . attaching strain gauges on the surfaces

. Pressure-sensitive resistance elements

EE21

EE23

EE25

EE27

EE29

. Inductance

. Piezoelectric elements

. Electrostatic capacitance

. Displacement of magnets

. Magnetostrictive effects

EE31

EE33

EE35

EE39

EE40

. Optical means

. Surface acoustic waves

. Pressure switches

. Others

. No description for this viewpoint

FF00
FUNCTION

FF01

FF02

FF04

FF05

FF07

. Improvement of temperature characteristics

. . Temperature compensation

. . Improvement of heat resistance

. Improvement of visibility

. Expansion of the range of measured pressure

FF11

FF12

FF13

FF14

FF15

FF16

FF17

FF18

. Improvement of sensitivity and accuracy

. . Improvement of linearity

. . Zero-point adjustment

. . Elimination of hysteresis

. . Correction of uneven stress

. . Improvement of frequency characteristics

. . Improvement of response speed

. . Adjustment of range or span

FF21

FF23

FF25

FF26

FF28

. Protection against overpressure

. Elimination of transmission of external strain

. Detection of the rate of a pressure change

. . Indication of weather trend

. Detection by comparison with set pressure

FF31

FF32

FF34

FF36

FF38

. Alarms or monitoring

. . Generation of warning sound

. Transfer and transmission of signals

. Buffering of pulsating pressure

. Improvement of resistance to environmental factors

FF41

FF43

FF45

FF49

. Explosion-protection or prevention of danger

. Simplification of structures assembly or manufacturing

. Improvement of maintenance

. Others

GG00
MEANS OR METHOD OF ACHIEVING FUNCTIONS

GG01

GG03

. Manufacturing methods

. Indication or recording

GG11

GG12

GG13

GG14

GG15

GG16

GG17

. Structures

. . Joining of members

. . . Bonded structures of semiconductor diaphragms

. . . . Structures using strain-absorbing posts

. . Structures of semiconductor diaphragms

. . . Arrangement of strain gauges

. . Structures using bimetals

GG22

GG23

GG24

GG25

. . Integrated attachment of sealing diaphragms

. . Valve structures

. . . having centre diaphragms

. . Housing structures

GG31

GG32

GG33

GG34

GG35

GG36

GG37

. Circuits

. . Temperature compensation

. . Zero-point compensation

. . Compensation for span errors

. . Compensation for static pressure errors

. . Compensation for output characteristics

. . . Compensation for linearity

GG42

GG43

GG44

GG45

GG46

GG47

GG49

. . Compensation for fluctuations in the power source voltage

. . Alarm circuits

. . Elimination of noise

. . Indication circuits

. . Averaging of pulsating signals

. . for use in vibrating pressure gauges

. Others

HH00
ATTACHMENT MEANS

HH01

HH03

HH05

HH06

HH07

HH08

HH09

HH10

. Testing or calibration of pressure gauges

. Mounting structures for pressure gauges

. Pressure-introduction and pressure-transmission units

. . Valves

. . Means of separation of liquids

. . . Sealing diaphragms

. . Filters

. . Means of purging

HH11

HH19

. Means of protection

. Others

2F055	MEASURING FLUID PRESSURE
	G01L7/00 -23/32;27/00-27/02