SE305333B - - Google Patents
Info
- Publication number
- SE305333B SE305333B SE8103/66A SE810366A SE305333B SE 305333 B SE305333 B SE 305333B SE 8103/66 A SE8103/66 A SE 8103/66A SE 810366 A SE810366 A SE 810366A SE 305333 B SE305333 B SE 305333B
- Authority
- SE
- Sweden
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G5/00—Weighing apparatus wherein the balancing is effected by fluid action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
- G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/18—Control of fluid pressure with auxiliary non-electric power derived from an external source
- G05D16/187—Control of fluid pressure with auxiliary non-electric power derived from an external source using pistons within the main valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/25—Pressure control functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/555—Pressure control for assuring a minimum pressure, e.g. by using a back pressure valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/565—Control of a downstream pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/61—Secondary circuits
- F15B2211/613—Feeding circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/76—Control of force or torque of the output member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
- Examining Or Testing Airtightness (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3518165 | 1965-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE305333B true SE305333B (xx) | 1968-10-21 |
Family
ID=12434665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8103/66A SE305333B (xx) | 1965-06-15 | 1966-06-14 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3407644A (xx) |
CH (1) | CH450760A (xx) |
DE (1) | DE1573621A1 (xx) |
GB (1) | GB1117198A (xx) |
SE (1) | SE305333B (xx) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1520700A (fr) * | 1967-03-01 | 1968-04-12 | Desgranges & Huot | Perfectionnements aux dispositifs pour étalonner les manomètres |
US3720202A (en) * | 1971-10-05 | 1973-03-13 | J Cleary | Instrument for measuring maximum expiratory flow rate |
FR2481801A1 (fr) * | 1980-04-30 | 1981-11-06 | Delajoud Pierre | Dispositif pour la mesure tres precise des pressions de fluide avec affichage de la pression mesuree |
CA1201608A (en) * | 1982-11-22 | 1986-03-11 | Yoshiteru Sonoda | Precision pressure gauge |
DE3715450A1 (de) * | 1987-05-08 | 1988-11-24 | Pfister Gmbh | Drucknormal |
US5226311A (en) * | 1991-04-16 | 1993-07-13 | The Allen Group Inc. | Fluid flow generating apparatus |
US6321585B2 (en) | 2000-04-07 | 2001-11-27 | Avgi Engineering, Inc. | Differential pressure generator |
CN106017793B (zh) * | 2016-07-29 | 2019-08-02 | 昆山市创新科技检测仪器有限公司 | 一种用于力标准机的精度检测装置、力值比对机以及力标准机精度检测方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2796229A (en) * | 1952-08-15 | 1957-06-18 | Donald H Newhall | Pressure cylinder unit and method |
US3239827A (en) * | 1960-01-12 | 1966-03-08 | Rosemount Eng Co Ltd | High precision pressure standard |
-
1966
- 1966-05-31 GB GB24235/66A patent/GB1117198A/en not_active Expired
- 1966-06-03 US US555190A patent/US3407644A/en not_active Expired - Lifetime
- 1966-06-14 CH CH867566A patent/CH450760A/it unknown
- 1966-06-14 DE DE19661573621 patent/DE1573621A1/de active Pending
- 1966-06-14 SE SE8103/66A patent/SE305333B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB1117198A (en) | 1968-06-19 |
US3407644A (en) | 1968-10-29 |
CH450760A (it) | 1968-01-31 |
DE1573621A1 (de) | 1970-04-16 |