FR2507777A1 - Dispositif de mesure - Google Patents
Dispositif de mesure Download PDFInfo
- Publication number
- FR2507777A1 FR2507777A1 FR8209847A FR8209847A FR2507777A1 FR 2507777 A1 FR2507777 A1 FR 2507777A1 FR 8209847 A FR8209847 A FR 8209847A FR 8209847 A FR8209847 A FR 8209847A FR 2507777 A1 FR2507777 A1 FR 2507777A1
- Authority
- FR
- France
- Prior art keywords
- pressure
- measuring device
- pressure body
- conque
- cation
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims abstract description 7
- 229910001060 Gray iron Inorganic materials 0.000 claims description 6
- 210000003298 dental enamel Anatomy 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 3
- 150000001768 cations Chemical class 0.000 claims 3
- 239000010410 layer Substances 0.000 abstract description 9
- 239000002344 surface layer Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/06—Measuring force or stress, in general by measuring the permanent deformation of gauges, e.g. of compressed bodies
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3122866A DE3122866C2 (de) | 1981-06-10 | 1981-06-10 | Meßeinrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2507777A1 true FR2507777A1 (fr) | 1982-12-17 |
| FR2507777B1 FR2507777B1 (OSRAM) | 1984-08-17 |
Family
ID=6134281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8209847A Granted FR2507777A1 (fr) | 1981-06-10 | 1982-06-07 | Dispositif de mesure |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4468970A (OSRAM) |
| JP (1) | JPS57204429A (OSRAM) |
| CH (1) | CH653773A5 (OSRAM) |
| DE (1) | DE3122866C2 (OSRAM) |
| FR (1) | FR2507777A1 (OSRAM) |
| GB (1) | GB2100012B (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3723450A1 (de) * | 1987-07-16 | 1989-01-26 | Audi Ag | Vorrichtung zum erkennen von ueberbeanspruchungen an bauteilen aus faserverstaerktem kunststoff |
| DE8713420U1 (de) * | 1987-10-06 | 1987-12-10 | Bergwerksverband Gmbh, 4300 Essen | Meßeinrichtung zum Erkennen von Ankerbelastungen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1020409A (fr) * | 1950-06-13 | 1953-02-06 | Onera (Off Nat Aerospatiale) | Procédé et produits pour l'étude de la répartition des contraintes dans les pièces mécaniques |
| GB1119530A (en) * | 1964-07-31 | 1968-07-10 | C I M Consultants Ltd | A load change sensing instrument |
| FR2126683A5 (OSRAM) * | 1971-02-10 | 1972-10-06 | Bergwerksverband Gmbh | |
| FR2349826A1 (fr) * | 1976-04-28 | 1977-11-25 | Bergwerksverband Gmbh | Appareil de mesure pour determiner la grandeur et la direction de forces, notamment des forces d'appui d'un soutenement en exploitation miniere |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2724964A (en) * | 1952-09-02 | 1955-11-29 | Magnaflux Corp | Method of determining strain values in rigid articles |
| US2824481A (en) * | 1955-03-23 | 1958-02-25 | Sidney P Johnson | Stress-indicating fastener |
| JPS5254470A (en) * | 1975-10-29 | 1977-05-02 | Hitachi Ltd | Breaking type detector |
-
1981
- 1981-06-10 DE DE3122866A patent/DE3122866C2/de not_active Expired
-
1982
- 1982-03-01 CH CH1233/82A patent/CH653773A5/de not_active IP Right Cessation
- 1982-03-18 JP JP57041790A patent/JPS57204429A/ja active Pending
- 1982-05-25 GB GB8215225A patent/GB2100012B/en not_active Expired
- 1982-06-07 FR FR8209847A patent/FR2507777A1/fr active Granted
- 1982-06-09 US US06/386,853 patent/US4468970A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1020409A (fr) * | 1950-06-13 | 1953-02-06 | Onera (Off Nat Aerospatiale) | Procédé et produits pour l'étude de la répartition des contraintes dans les pièces mécaniques |
| GB1119530A (en) * | 1964-07-31 | 1968-07-10 | C I M Consultants Ltd | A load change sensing instrument |
| FR2126683A5 (OSRAM) * | 1971-02-10 | 1972-10-06 | Bergwerksverband Gmbh | |
| FR2349826A1 (fr) * | 1976-04-28 | 1977-11-25 | Bergwerksverband Gmbh | Appareil de mesure pour determiner la grandeur et la direction de forces, notamment des forces d'appui d'un soutenement en exploitation miniere |
Non-Patent Citations (1)
| Title |
|---|
| STRAIN, vol. 14, juillet 1978, Monograph part 3, pages 67-73, Newcastle-Upon-Tyne (GB); * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2100012B (en) | 1985-06-12 |
| GB2100012A (en) | 1982-12-15 |
| DE3122866C2 (de) | 1984-04-19 |
| US4468970A (en) | 1984-09-04 |
| FR2507777B1 (OSRAM) | 1984-08-17 |
| JPS57204429A (en) | 1982-12-15 |
| DE3122866A1 (de) | 1982-12-30 |
| CH653773A5 (de) | 1986-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |