FR2231978B3 - - Google Patents
Info
- Publication number
- FR2231978B3 FR2231978B3 FR7418364A FR7418364A FR2231978B3 FR 2231978 B3 FR2231978 B3 FR 2231978B3 FR 7418364 A FR7418364 A FR 7418364A FR 7418364 A FR7418364 A FR 7418364A FR 2231978 B3 FR2231978 B3 FR 2231978B3
- Authority
- FR
- France
- 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
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US364970A US3890606A (en) | 1973-05-29 | 1973-05-29 | Seismometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2231978A1 FR2231978A1 (fr) | 1974-12-27 |
| FR2231978B3 true FR2231978B3 (fr) | 1977-03-25 |
Family
ID=23436931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7418364A Expired FR2231978B3 (fr) | 1973-05-29 | 1974-05-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3890606A (fr) |
| CA (1) | CA993990A (fr) |
| FR (1) | FR2231978B3 (fr) |
| NL (1) | NL7407248A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3953829A (en) * | 1975-02-18 | 1976-04-27 | Sparton Corporation | Partially filled fluid damped geophone |
| US4285054A (en) * | 1979-07-27 | 1981-08-18 | Mark Products, Inc. | Geophone |
| EP0197112A1 (fr) * | 1984-10-18 | 1986-10-15 | Covert Security Systems Limited | Appareil et procede de detection sismique |
| US5792427A (en) | 1996-02-09 | 1998-08-11 | Forma Scientific, Inc. | Controlled atmosphere incubator |
| GB2366474B (en) * | 2000-09-01 | 2005-02-16 | Schlumberger Ltd | Geophones |
| US6922374B2 (en) * | 2001-04-09 | 2005-07-26 | Input/Output, Inc. | Double-ended geophone |
| TWI402488B (zh) * | 2010-03-05 | 2013-07-21 | Edison Opto Corp | 具有旋轉式遮蔽組件之光學感應裝置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2961639A (en) * | 1947-05-08 | 1960-11-22 | John V Atanasoff | Underwater transducer |
| US2570672A (en) * | 1950-01-10 | 1951-10-09 | Claude M Hathaway | Accelerometer unit |
| US2748370A (en) * | 1951-06-26 | 1956-05-29 | Seismograph Service Corp | Seismometer |
| US2776560A (en) * | 1953-07-03 | 1957-01-08 | Southwestern Ind Electronics C | Means for measuring and for generating motion |
| US3018467A (en) * | 1955-11-07 | 1962-01-23 | Harris Transducer Corp | Resonant reactively operating variable position transducer |
| US3344397A (en) * | 1965-04-30 | 1967-09-26 | Int Research & Dev Co Ltd | Compound diaphragm spring |
| US3577184A (en) * | 1969-03-14 | 1971-05-04 | Geo Space Corp | Low-distortion seismometer |
| US3718900A (en) * | 1970-04-15 | 1973-02-27 | Mark Products | Seismometer with spring spider suspension |
-
1973
- 1973-05-29 US US364970A patent/US3890606A/en not_active Expired - Lifetime
-
1974
- 1974-05-27 CA CA200,849A patent/CA993990A/en not_active Expired
- 1974-05-28 FR FR7418364A patent/FR2231978B3/fr not_active Expired
- 1974-05-29 NL NL7407248A patent/NL7407248A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US3890606A (en) | 1975-06-17 |
| FR2231978A1 (fr) | 1974-12-27 |
| NL7407248A (fr) | 1974-12-03 |
| CA993990A (en) | 1976-07-27 |