DE3204242C2 - - Google Patents
Info
- Publication number
- DE3204242C2 DE3204242C2 DE3204242A DE3204242A DE3204242C2 DE 3204242 C2 DE3204242 C2 DE 3204242C2 DE 3204242 A DE3204242 A DE 3204242A DE 3204242 A DE3204242 A DE 3204242A DE 3204242 C2 DE3204242 C2 DE 3204242C2
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- helix
- axis
- bourdon tube
- permanent magnet
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000005294 ferromagnetic effect Effects 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000006059 cover glass Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/232,988 US4374475A (en) | 1981-02-09 | 1981-02-09 | Differential pressure gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3204242A1 DE3204242A1 (de) | 1982-09-09 |
| DE3204242C2 true DE3204242C2 (en, 2012) | 1991-12-12 |
Family
ID=22875410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19823204242 Granted DE3204242A1 (de) | 1981-02-09 | 1982-02-08 | Druckmesser |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4374475A (en, 2012) |
| JP (1) | JPS57156530A (en, 2012) |
| CA (1) | CA1162411A (en, 2012) |
| DE (1) | DE3204242A1 (en, 2012) |
| GB (1) | GB2092751B (en, 2012) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718279A (en) * | 1986-12-01 | 1988-01-12 | Dwyer Instruments, Inc. | Dual bourdon tube type sensing pressure transducer |
| US4891987A (en) * | 1988-11-25 | 1990-01-09 | Stockton William E | Magnetic linkage for bourdon tube gauges |
| US6116093A (en) * | 1997-12-09 | 2000-09-12 | Rogers; John W. | Differential pressure gauge assembly |
| US6711525B1 (en) | 1999-04-17 | 2004-03-23 | Pneumatic Products Corporation | Filter monitor |
| US6758097B2 (en) | 2001-11-30 | 2004-07-06 | Mija Industries | Pressure gauge spring |
| US6854335B1 (en) | 2003-12-12 | 2005-02-15 | Mlho, Inc. | Magnetically coupled tire pressure sensing system |
| CA2513849A1 (en) * | 2004-07-29 | 2006-01-29 | Dwyer Instruments, Inc. | Gauge having a magnetically driven pointer rotation device |
| US7752993B2 (en) * | 2007-05-25 | 2010-07-13 | Gordon Joseph B | Method and apparatus for a gauge for indicating a pressure of a fluid |
| US8307712B2 (en) | 2009-03-06 | 2012-11-13 | Dwyer Instruments, Inc. | Pressure gage with magnetically coupled diaphragm |
| US8146435B1 (en) * | 2010-10-17 | 2012-04-03 | Sailsors Instruments Ltd., Beijing | Differential pressure gauge |
| US9425007B2 (en) * | 2014-09-22 | 2016-08-23 | Moo Sung Kim | Pressure-type contact switch for use in operation of pressure pump |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2929249A (en) * | 1956-09-10 | 1960-03-22 | James E Lindsay | Pressure gauge |
| US3180152A (en) * | 1962-02-09 | 1965-04-27 | Micro Metrics Sales Corp | Pressure transducer |
| US3338101A (en) * | 1965-10-21 | 1967-08-29 | Stewart Warner Corp | Bourdon tube gauges |
| US3373614A (en) * | 1965-10-23 | 1968-03-19 | Yarway Corp | Differential pressure gauge |
| FR2084493A5 (en, 2012) * | 1970-03-14 | 1971-12-17 | Alinari Carlo | |
| US3645140A (en) * | 1970-06-15 | 1972-02-29 | Dwyer Instr | Pressure gauge |
| IT1023517B (it) * | 1972-06-10 | 1978-05-30 | Stradella Giuseppe | Tubo a molla bourdon per manometri con dispositivo di guida orientabile per la corsa di espansione del l estremita mobile ed attacco ruo tante per l altra estremita |
| US3807232A (en) * | 1972-08-23 | 1974-04-30 | Dresser Ind | Explosion proof gauge transducer |
| US3789668A (en) * | 1972-08-23 | 1974-02-05 | Dresser Ind | Overload protected bourdon tube |
| US3862416A (en) * | 1974-03-22 | 1975-01-21 | Dwyer Instr | Pressure indicator and switch |
| US3992945A (en) * | 1975-06-05 | 1976-11-23 | American Chain & Cable Company, Inc. | Bourdon pressure gauge having direct-coupled electronic and visual readout |
| US4011759A (en) * | 1975-12-11 | 1977-03-15 | Dwyer Instruments, Inc. | Differential pressure gauge |
| US4030365A (en) * | 1975-12-11 | 1977-06-21 | Dwyer Instruments, Inc. | Differential pressure gauge |
| US4043197A (en) * | 1976-11-04 | 1977-08-23 | Gulton Industries, Inc. | Flow rate transducer |
| US5142256A (en) * | 1991-04-04 | 1992-08-25 | Motorola, Inc. | Pin diode with field emission device switch |
-
1981
- 1981-02-09 US US06/232,988 patent/US4374475A/en not_active Expired - Lifetime
-
1982
- 1982-02-08 CA CA000395725A patent/CA1162411A/en not_active Expired
- 1982-02-08 GB GB8203529A patent/GB2092751B/en not_active Expired
- 1982-02-08 DE DE19823204242 patent/DE3204242A1/de active Granted
- 1982-02-09 JP JP57019517A patent/JPS57156530A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531093B2 (en, 2012) | 1993-05-11 |
| US4374475A (en) | 1983-02-22 |
| GB2092751B (en) | 1984-05-31 |
| CA1162411A (en) | 1984-02-21 |
| GB2092751A (en) | 1982-08-18 |
| JPS57156530A (en) | 1982-09-27 |
| DE3204242A1 (de) | 1982-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: G01L 7/04 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |