IE780645L - Seismic detector - Google Patents
Seismic detectorInfo
- Publication number
- IE780645L IE780645L IE780645A IE64578A IE780645L IE 780645 L IE780645 L IE 780645L IE 780645 A IE780645 A IE 780645A IE 64578 A IE64578 A IE 64578A IE 780645 L IE780645 L IE 780645L
- Authority
- IE
- Ireland
- Prior art keywords
- chamber
- cable
- geophone
- base plate
- flexible base
- Prior art date
Links
- 239000007788 liquid Substances 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
A long, flexible cable is drawn over the surface of the earth. This cable has liquid-filled detectors which are constructed as geophones (10) and are mounted on the cable at suitable spacings. The seismic cable receives the individual output signals of the geophone. Each geophone supplies an electrical output signal having a polarity which corresponds to the direction of the movement of the earth. Their output signals are transmitted to a processing device, and then it is moved into a different position and the measurement operation is repeated. The geophones have a cylindrical, hollow housing (12) with a chamber (34) in the interior. A liquid (36) of high density, e.g. mercury, mostly fills the chamber (34). The chamber has a flexible base plate (22) which forms a force-measuring or pressure-measuring transducer (27). In addition to the flexible base plate (22), the chamber (34) has a further flexible base plate (22') on the upper side, which likewise forms a measuring transducer (27'). The geophone supplies at its output terminals (56, 58) electrical signals corresponding to the seismic signals.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78353177A | 1977-04-01 | 1977-04-01 | |
| US88716578A | 1978-03-16 | 1978-03-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE780645L true IE780645L (en) | 1978-10-01 |
| IE46597B1 IE46597B1 (en) | 1983-07-27 |
Family
ID=27120152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE645/78A IE46597B1 (en) | 1977-04-01 | 1978-03-31 | Seismic method and apparatus |
Country Status (12)
| Country | Link |
|---|---|
| BE (1) | BE865476A (en) |
| CA (1) | CA1116285A (en) |
| CH (1) | CH633372A5 (en) |
| DE (1) | DE2813487A1 (en) |
| FR (1) | FR2386056A1 (en) |
| GB (1) | GB1599146A (en) |
| IE (1) | IE46597B1 (en) |
| IT (1) | IT1156186B (en) |
| MX (1) | MX145829A (en) |
| NL (1) | NL7803500A (en) |
| NO (1) | NO149943C (en) |
| SE (1) | SE430544B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1983000564A1 (en) * | 1981-08-13 | 1983-02-17 | Carpenter, Allan, Lloyd | Hydrophone cable |
| GB2224121A (en) * | 1988-10-08 | 1990-04-25 | Roy Wyatt | Improvements in or relating to arrays of geophones suitable for towing over ice |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT229599B (en) * | 1962-04-10 | 1963-09-25 | Oemv Ag | Mechanoelectric converter |
| US3270565A (en) * | 1962-12-26 | 1966-09-06 | Wilbur W Hawley | Omnidirectional acceleration device |
| US3555503A (en) * | 1968-12-31 | 1971-01-12 | Electronic Systems Inc | Acceleration dependent phase control seismic exploration |
| GB1385971A (en) * | 1971-05-03 | 1975-03-05 | Western Geophysical Co | Seismic detector conveyances |
| US3813744A (en) * | 1972-12-08 | 1974-06-04 | Seismic Logs | Geophone treatment |
-
1978
- 1978-03-28 NO NO781063A patent/NO149943C/en unknown
- 1978-03-29 SE SE7803556A patent/SE430544B/en not_active IP Right Cessation
- 1978-03-29 DE DE19782813487 patent/DE2813487A1/en active Granted
- 1978-03-30 IT IT48664/78A patent/IT1156186B/en active
- 1978-03-30 CA CA300,086A patent/CA1116285A/en not_active Expired
- 1978-03-30 BE BE1008797A patent/BE865476A/en not_active IP Right Cessation
- 1978-03-31 NL NL7803500A patent/NL7803500A/en not_active Application Discontinuation
- 1978-03-31 CH CH351078A patent/CH633372A5/en not_active IP Right Cessation
- 1978-03-31 MX MX172952A patent/MX145829A/en unknown
- 1978-03-31 FR FR7809537A patent/FR2386056A1/en active Granted
- 1978-03-31 IE IE645/78A patent/IE46597B1/en not_active IP Right Cessation
- 1978-03-31 GB GB12766/78A patent/GB1599146A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7803556L (en) | 1978-10-02 |
| NO781063L (en) | 1978-10-03 |
| BE865476A (en) | 1978-10-02 |
| CH633372A5 (en) | 1982-11-30 |
| FR2386056A1 (en) | 1978-10-27 |
| SE430544B (en) | 1983-11-21 |
| DE2813487A1 (en) | 1978-10-19 |
| CA1116285A (en) | 1982-01-12 |
| NO149943B (en) | 1984-04-09 |
| DE2813487C2 (en) | 1988-06-01 |
| IE46597B1 (en) | 1983-07-27 |
| NO149943C (en) | 1984-07-18 |
| NL7803500A (en) | 1978-10-03 |
| FR2386056B1 (en) | 1984-11-16 |
| GB1599146A (en) | 1981-09-30 |
| IT1156186B (en) | 1987-01-28 |
| MX145829A (en) | 1982-04-05 |
| IT7848664A0 (en) | 1978-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |