GB857669A - A measurement transformer for transforming a force varying as the square of the quantity measured into a linear indication of the quantity measured - Google Patents
A measurement transformer for transforming a force varying as the square of the quantity measured into a linear indication of the quantity measuredInfo
- Publication number
- GB857669A GB857669A GB13459/57A GB1345957A GB857669A GB 857669 A GB857669 A GB 857669A GB 13459/57 A GB13459/57 A GB 13459/57A GB 1345957 A GB1345957 A GB 1345957A GB 857669 A GB857669 A GB 857669A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- fluid
- pressure
- diaphragm
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001131 transforming effect Effects 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 5
- 230000007935 neutral effect Effects 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
- G01F1/386—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with mechanical or fluidic indication
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
857,669. Fluid-pressure servomotor-control systems. EKSTROMS MASKINAFFAR A.B., A. April 26, 1957 [April 27, 1956], No. 13459/57. Class 135. Apparatus for transforming a force varying as the square of a quantity to be measured into a linear indication of the quantity comprises an arm 504 pivoted at 535 and having connections at its free end with a measuring member, e.g. a diaphragm 546 subject to the pressure difference due to fluid flow through an orifice 2 in a conduit 1, a spring 502 the other end of which is connected to a piston-rod 509, and a piston valve 531 controlling the pressure of a fluid acting on the piston 508 in opposition to a spring 510. The arrangement is such that the pressure on the upstream side of the orifice 2 causes leftward movement of the diaphragm and piston valve resulting in pressure fluid being transmitted to the piston 508 which, due to its movement to the right, causes the spring 502 to return the diaphragm 546, the arm 504 and the piston valve 531 to their neutral positions in which the piston valve cuts off the fluid flow to the piston 508. Movement of the diaphragm to the right causes the piston valve to exhaust fluid from the piston 508. When the piston 508 is in its extreme leftward position with a member 513 in engagement with a stop 512, corresponding to zero flow in the conduit 1, the spring 502, whose axis is in alignment with the arm 504 and makes an angle of 102 to 105 degrees with the piston-rod 509, is extended by between 0.5 and 2% of its free length. A pointer 528 carried by the member 513 moves over a linear scale 529 to indicate the rate of flow in the conduit 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE857669X | 1956-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857669A true GB857669A (en) | 1961-01-04 |
Family
ID=20362889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13459/57A Expired GB857669A (en) | 1956-04-27 | 1957-04-26 | A measurement transformer for transforming a force varying as the square of the quantity measured into a linear indication of the quantity measured |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB857669A (en) |
-
1957
- 1957-04-26 GB GB13459/57A patent/GB857669A/en not_active Expired
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