GB1395242A - Vacuum gauges - Google Patents
Vacuum gaugesInfo
- Publication number
- GB1395242A GB1395242A GB4632272A GB4632272A GB1395242A GB 1395242 A GB1395242 A GB 1395242A GB 4632272 A GB4632272 A GB 4632272A GB 4632272 A GB4632272 A GB 4632272A GB 1395242 A GB1395242 A GB 1395242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wire
- bridge
- oct
- circuitry
- interior
- 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
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
- G01L19/14—Housings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
- G01L21/10—Vacuum gauges by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured
- G01L21/12—Vacuum gauges by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured measuring changes in electric resistance of measuring members, e.g. of filaments; Vacuum gauges of the Pirani type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1395242 Measuring pressure electrically INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 6 Oct 1972 [8 Oct 1971 14 Oct 1971 15 Nov 1971] 46322/72 Heading GIN A vacuum gauge consists of a tubular member 3 sealed at one end 4 and having means 17 for connecting the interior of the member 3 with the interior of a vessel whose internal pressure is to be measured, an electrically resistive member 7 suspended in the member 3, and a housing 1 secured to the member 3 and containing electrical circuitry 2 for monitoring the resistance of member 7, the circuitry including a bridge circuit having the resistive member 7 connected in one arm thereof. As shown, the circuitry is mounted on a circuit board, Figs. 3, 4 and 5 (not shown), the bridge being a self-balancing bridge. A reference temperature dependent resistor, mounted in another arm of the bridge, may be provided in the form of a coil surrounding the member 3, Fig. 6 (not shown). As shown in Fig. 1, the member 7 is in the form of a coil tensioned by a wire 6, the member 7 and wire 6 being connected to the electrical circuitry via wire 10, 11 mounted in the seal 4. As shown in Fig. 7, the member 7 is in the form of a wire wound in tension around two members 18 of angle or star-shaped cross-section. One end of wire 7, which may be of nickel or ansterite, is connected to wire 6 while the other end is connected to wire 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7138210 | 1971-10-08 | ||
| DE7138878 | 1971-10-14 | ||
| DE7142951 | 1971-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1395242A true GB1395242A (en) | 1975-05-21 |
Family
ID=27207320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4632272A Expired GB1395242A (en) | 1971-10-08 | 1972-10-06 | Vacuum gauges |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4862483A (en) |
| FR (1) | FR2166914A5 (en) |
| GB (1) | GB1395242A (en) |
| NL (1) | NL7212942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153246A (en) * | 2015-05-15 | 2016-11-23 | 株式会社爱发科 | Pirani ga(u)ge |
| CN108507716A (en) * | 2018-04-16 | 2018-09-07 | 成都科瑞尔低温设备有限公司 | A kind of intelligent online detection vacuum coupling |
| WO2022129872A1 (en) * | 2020-12-16 | 2022-06-23 | Edwards Limited | Thermal conductivity vacuum gauge assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3130817A1 (en) * | 1981-08-04 | 1983-02-24 | Leybold-Heraeus GmbH, 5000 Köln | HEATING PIPE VACUUM METER |
| DE8407656U1 (en) * | 1984-03-09 | 1985-03-14 | Siemens AG, 1000 Berlin und 8000 München | PRESSURE OR PRESSURE DIFFERENTIAL MEASURING DEVICE |
| FR2611907B1 (en) * | 1987-03-05 | 1989-06-16 | Tolectromed Sarl | MEDICAL FLUID IDENTIFIER |
-
1972
- 1972-09-25 NL NL7212942A patent/NL7212942A/xx not_active Application Discontinuation
- 1972-10-06 GB GB4632272A patent/GB1395242A/en not_active Expired
- 1972-10-06 JP JP10056172A patent/JPS4862483A/ja active Pending
- 1972-10-06 FR FR7235549A patent/FR2166914A5/fr not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153246A (en) * | 2015-05-15 | 2016-11-23 | 株式会社爱发科 | Pirani ga(u)ge |
| CN106153246B (en) * | 2015-05-15 | 2019-08-30 | 株式会社爱发科 | Pirani ga(u)ge |
| CN108507716A (en) * | 2018-04-16 | 2018-09-07 | 成都科瑞尔低温设备有限公司 | A kind of intelligent online detection vacuum coupling |
| CN108507716B (en) * | 2018-04-16 | 2024-05-14 | 成都科瑞尔低温设备有限公司 | Intelligent on-line detection vacuum connector |
| WO2022129872A1 (en) * | 2020-12-16 | 2022-06-23 | Edwards Limited | Thermal conductivity vacuum gauge assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4862483A (en) | 1973-08-31 |
| NL7212942A (en) | 1973-04-10 |
| FR2166914A5 (en) | 1973-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |