GB1173438A - Method and Device for Measuring a Displacement - Google Patents
Method and Device for Measuring a DisplacementInfo
- Publication number
- GB1173438A GB1173438A GB55350/66A GB5535066A GB1173438A GB 1173438 A GB1173438 A GB 1173438A GB 55350/66 A GB55350/66 A GB 55350/66A GB 5535066 A GB5535066 A GB 5535066A GB 1173438 A GB1173438 A GB 1173438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cavity
- klystron
- frequency
- resonant
- measuring
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
- G21C1/30—Subcritical reactors ; Experimental reactors other than swimming-pool reactors or zero-energy reactors
- G21C1/303—Experimental or irradiation arrangements inside the reactor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
1,173,438. Measuring displacements electrically. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 9, 1966 [Dec. 16, 1965], No.55350/66. Heading G1N. [Also in Division H1] Changes in the length of a sample 2 Fig. 1 are measured by coupling one end to a piston 4 forming a wall of a resonant cavity 6 supplied with microwave signals from a reflex klystron generator 8 via an isolator 10 and attenuator 12. Changes in the length of the cavity alter its resonant frequency. The output from the cavity 6 is fed via directional coupler 16 to a second similar resonant cavity 20 and to a detector 22 whose output is fed to the Y axis of an oscilloscope 24, whose X axis scanning voltage is used to modulate the klystron frequency, so that the signal observed on the oscilloscope comprises a pulse a Fig.3 with inverted peaks b, c at the resonant frequencies of the two cavities. The piston 28 of cavity 20 is displaced by micrometer adjustment until the two peaks coincide, the displacement being equal to the change in length of sample 2. In a modification, the cavities 6, 20 are separately connected to the klystron 8 and the oscilloscope 24. In another embodiment Fig. 4, the frequency of the klystron 32 is automatically adjusted to the frequency of the cavity 6. Initially, with switch 38 open and 40 closed, the frequency of the klystron 32, reference cavity 20 and measuring cavity 6 are made equal, as described above. Switch 38 is then closed and 40 opened, and the output of detector 22 cover bonding to the difference in frequency of the klystron and cavity 6 is fed to device 36 which varies the porous supply 34 to the klystron whereby its frequency follows that of the cavity 6, and is measured by a microwave converter 42. The Specification describes the assembly of a sample 2 and measuring cavity 6 in a temperaturecontrolled flask located in e.g. the water of a swimming-pool reactor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR42646A FR1467228A (en) | 1965-12-16 | 1965-12-16 | Method for measuring a displacement and device by applying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1173438A true GB1173438A (en) | 1969-12-10 |
Family
ID=8595862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB55350/66A Expired GB1173438A (en) | 1965-12-16 | 1966-12-09 | Method and Device for Measuring a Displacement |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE690404A (en) |
| CH (1) | CH466591A (en) |
| DE (1) | DE1284643B (en) |
| ES (1) | ES334537A1 (en) |
| FR (1) | FR1467228A (en) |
| GB (1) | GB1173438A (en) |
| IL (1) | IL26990A (en) |
| LU (1) | LU52523A1 (en) |
| NL (1) | NL6617559A (en) |
| SE (1) | SE331198B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737770A (en) * | 1969-12-08 | 1973-06-05 | Commiss A Lenergie | Microwave thickness measuring device utilizing two resonant cavities on either side of the test piece |
| US3939406A (en) * | 1973-06-13 | 1976-02-17 | Westinghouse Electric Corporation | Microwave fluid flow meter |
| US4588953A (en) * | 1983-08-11 | 1986-05-13 | General Motors Corporation | Microwave piston position location |
| US4689553A (en) * | 1985-04-12 | 1987-08-25 | Jodon Engineering Associates, Inc. | Method and system for monitoring position of a fluid actuator employing microwave resonant cavity principles |
| US4901628A (en) * | 1983-08-11 | 1990-02-20 | General Motors Corporation | Hydraulic actuator having a microwave antenna |
| CN106041944A (en) * | 2016-08-06 | 2016-10-26 | 四川乐成电气科技有限公司 | Industrial robot one-dimensional motion trail testing device |
| CN115824026A (en) * | 2023-02-14 | 2023-03-21 | 南方科技大学 | Differential resonant cavity displacement sensing system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184512A (en) * | 1989-01-16 | 1993-02-09 | Hrdlicka Armin W | Measuring the length of a column of fluid in a tube |
| EP0379855B1 (en) * | 1989-01-16 | 1993-09-01 | Armin W. Hrdlicka | Process for the measurement of lengths, and device for carrying out the process |
-
1965
- 1965-12-16 FR FR42646A patent/FR1467228A/en not_active Expired
-
1966
- 1966-11-29 BE BE690404D patent/BE690404A/xx unknown
- 1966-12-02 IL IL26990A patent/IL26990A/en unknown
- 1966-12-07 LU LU52523D patent/LU52523A1/xx unknown
- 1966-12-09 GB GB55350/66A patent/GB1173438A/en not_active Expired
- 1966-12-14 NL NL6617559A patent/NL6617559A/xx unknown
- 1966-12-15 ES ES334537A patent/ES334537A1/en not_active Expired
- 1966-12-15 SE SE17217/66A patent/SE331198B/xx unknown
- 1966-12-15 CH CH1791366A patent/CH466591A/en unknown
- 1966-12-16 DE DEC40993A patent/DE1284643B/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3737770A (en) * | 1969-12-08 | 1973-06-05 | Commiss A Lenergie | Microwave thickness measuring device utilizing two resonant cavities on either side of the test piece |
| US3939406A (en) * | 1973-06-13 | 1976-02-17 | Westinghouse Electric Corporation | Microwave fluid flow meter |
| US4588953A (en) * | 1983-08-11 | 1986-05-13 | General Motors Corporation | Microwave piston position location |
| US4901628A (en) * | 1983-08-11 | 1990-02-20 | General Motors Corporation | Hydraulic actuator having a microwave antenna |
| US4689553A (en) * | 1985-04-12 | 1987-08-25 | Jodon Engineering Associates, Inc. | Method and system for monitoring position of a fluid actuator employing microwave resonant cavity principles |
| CN106041944A (en) * | 2016-08-06 | 2016-10-26 | 四川乐成电气科技有限公司 | Industrial robot one-dimensional motion trail testing device |
| CN115824026A (en) * | 2023-02-14 | 2023-03-21 | 南方科技大学 | Differential resonant cavity displacement sensing system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1467228A (en) | 1967-01-27 |
| IL26990A (en) | 1970-11-30 |
| BE690404A (en) | 1967-05-02 |
| SE331198B (en) | 1970-12-14 |
| DE1284643B (en) | 1968-12-05 |
| ES334537A1 (en) | 1969-01-01 |
| CH466591A (en) | 1968-12-15 |
| LU52523A1 (en) | 1967-02-07 |
| NL6617559A (en) | 1967-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 416 | Proceeding under section 16 patents act 1949 | ||
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |