GB2496106A - Unattended ground sensors with screw thread for aiding installation into the ground - Google Patents
Unattended ground sensors with screw thread for aiding installation into the ground Download PDFInfo
- Publication number
- GB2496106A GB2496106A GB1118460.3A GB201118460A GB2496106A GB 2496106 A GB2496106 A GB 2496106A GB 201118460 A GB201118460 A GB 201118460A GB 2496106 A GB2496106 A GB 2496106A
- Authority
- GB
- United Kingdom
- Prior art keywords
- text
- body portion
- sensor unit
- ground
- unattended
- 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.)
- Withdrawn
Links
- 238000009434 installation Methods 0.000 title claims description 7
- 230000007423 decrease Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- UOJMTSCORVQOHS-UHFFFAOYSA-N pachypodol Natural products COc1cc(ccc1O)C2=C(C)C(=O)c3c(O)cc(C)cc3O2 UOJMTSCORVQOHS-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 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
- G01V1/162—Details
- G01V1/166—Arrangements for coupling receivers to the ground
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
- G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
-
- 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
- G01V1/168—Deployment of receiver elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
An unattended ground sensor unit has a body portion 1 and a head portion 2. The body portion has a screw thread 7 on and around an external surface so that a rotation about the main axis will tend to draw the sensor unit into the surrounding ground in order to improve the acoustic coupling of the unit to the ground. The body portion 1 is generally hollow and a battery 3, a sensor 4, an antenna 5, and control electronics are provided therein. The head portion 2 may include engagement recesses or flats (26, fig.1; figs 3&4) for cooperation with a toothed tool or hexagonal spanner (8, figs 5A, 5B) for installing the sensor unit. The sensor unit may include a seismic sensor, acoustic sensor, magnetometer, heat or light sensors and may be used in a network of such sensors for detecting the movement of a person or object.
Description
Unattended Ground Sensors This invention relates to unattended ground sensor units.
Unattended ground sensor units are used as part of security systems for infrastructure and personnel protection. Typically a number of unattended ground sensor units are provided around the perimeter of a site to be protected or atong another boundary. Each unattended ground sensor unit comprises at least one sensor for sensing a physical phenomenon in the region of the unit and often transmission means for transmitting signals away from the unit in dependence on the output of the sensor. Thus, for example, the sensor unit may include a seismic sensor for detecting vibrations in the ground which are indicative of a passing person, vehic'e or other object.
Similarly the sensor unit may include acoustic sensors, magnetometers, heat and light sensors and so on, each for a similar purpose of detecting the presence of a person or object or movement of a person or object in the region of the unit.
Typically unattended ground sensors are connected together in a network and, for example, connected to a central control unit where the output of each of the sensor units can be monitored and determinations made regarding the presence or movement of people and/or objects in or around the site which is to be monitored. In an alternative the unattended ground sensors may store data for later recovery.
Initially unattended ground sensor units were bulky and tended to be made up of several separate units linked together.
More recently there has been a trend towards integrated units however these generally have at least some separate components, for example, an external whip antenna.
Such units have generally been simply left on the surface of the ground at their intended location (sometimes with a simple spike inserted in the ground) or a hole has been dug in the ground into which the unit is located.
Of course a unit simply left on the surface of the ground is liable to be detected and may be subject to damage and/or interference or removal. On the other hand, digging a hole in which to locate the unit requires more work at installation and even when a unit is located in a dug hole there will often still be a need for the unit to signal to other units and/or the central control station which typically has meant the use of a separate whip antenna.
It would be desirable to provide an unattended ground sensor unit which to some degree is a covert unit, insofar it is relatively unobtrusive once installed, but yet is robust and easy to deploy.
The present invention is aimed at providing unattended ground sensor units which address at least some of these issues.
According to an aspect of the present invention there is provided an unattended ground sensor unit comprising at least one sensor for sensing a physical phenomenon in the region of the unit, the unit comprising a body portion for location in the ground, the body portion having a main axis and carrying a screw thread on and around an external surface of the body portion such that rotation of the body portion around the main axis relative to surrounding ground will tend to draw the body portion into the surrounding ground.
The use of a screw thread can assist in installation of the sensor unit, help ensure that the unit is retained in position and help improve seismic coupling to the surrounding ground.
The unattended ground sensor unit may comprise transmission means for transmitting signals away from the unit in dependence on the output of the sensor. The unattended ground sensor unit may comprise a memory for storing data in dependence on the output of the sensor.
The body portion may be at least part hollow. This can allow the body portion to house one or more component of the sensor unit.
The sensor unit may comprise a head portion.
The head portion and body portion may together form at least part of a housing within which other components of the sensor unit are housed.
The body portion may taper so as to decrease in diameter as one moves along the axis away from the head.
The body portion may have main portion which may be generally cylindrical.
The main portion may comprise an internal compartment for housing at east one component of the sensor unit. The internal compartment may house a battery for powering the sensor unit.
The main portion may comprise at least part of the external surface carrying the screw thread.
The body portion may have a generally conical portion, which may be spaced from the head by the main portion.
The conical portion may comprise at least part of the external surface carrying the screw thread.
A spike may be mounted to an end of the body portion. In such a case the spike is arranged to assist in insertion of the sensor unit into the ground.
The head portion may comprise engagement portions for engaging with a tool for rotatingly driving the sensor unit during installation in the ground.
The body portion may, ignoring the screw thread, be generally symmetrical about said main axis.
At least when considered externally, the whole sensor unit may, ignoring the screw thread, be generally symmetrical about said main axis.
The sensor may comprise a seismic sensor.
Perhaps the most common type of sensor for inclusion in an unattended ground sensor unit is a seismic sensor. In order for the seismic sensor to have its operation optimised, good seismic coupling between the unattended ground sensor unit and the ground is required. Again the disturbance of an unattended ground sensor unit merely rested on a surface or provided with a simple spike can disrupt its performance.
The transmission means may comprise an antenna which is an internal antenna provided within the sensor unit. The antenna may be provided in the head portion of the unit.
The head portion may comprise a cap which may be an antenna cover.
The cap may comprise the engagement portions.
The dimension and arrangement of the thread may be chosen to provide adequate retention and driving characteristics whilst not requiring excessive torque at installation.
The pach of the screw thread may be greater than the width of the thread where it meets the body portion.
The outside diameter of the screw thread may decrease as one moves along the axis away from the head.
The height of the screw thread measured relative to said external surface may decrease as one moves along the axis away from the head. Put anotherway the thread depth may decrease as one moves along the axis away from the head.
The screw thread may be such that the average thread depth is greater or equal to the average width of the thread where it meets the body portion.
According to another aspect of the present invention there is provided a method of installing an unattended ground sensor unit as defined above comprising the steps of pushing an end of the unit into the ground and rotating the unit around its main axis.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a schematic side view of an unattended ground sensor unit; Figure 2 is a section on line Il-Il of the unattended ground sensor unit shown in Figure 1; Figure 3 is a schematic view of an alternative unattended ground sensor unit; Figure 4 is a schematic view of a further alternative unattended ground sensor unit; and Figures SA and SB show a tool used for deploying unattended ground sensor units of the type shown in Figures 1-4 and particularly those shown in Figures 3and4.
Figures 1 and 2 show an unattended ground sensor unit for use as part of a security or surveillance system. The unattended ground sensor unit comprises a body portion I and a head portion 2. As shown in Figure 2 the body portion 1 and head portion 2 together form a housing within which other components of the sensor unit are disposed. In the present embodiment a battery 3 for powering the sensor unit is located in a compartment within the body portion 1. Also provided within the ground sensor unit are a sensor 4, an antenna 5 and control electronics 6. Part of the control electronics 6 and antenna 5 together form a transmission means for transmitting signals away from the sensor unit. In the present embodiment the sensor 4 and antenna 5 are disposed in the head portion 2 of the unit. The electronics 6 are located partly within the body portion 1 and partly within the head portion 2.
The head portion 2 comprises an insert (or electronics enclosure) 21 which is threadingly engaged with an internal surface of the body portion 1 and a cap 22 which is secured to the insert portion 21 and acts as an antenna cover The cap 22 is pinned to the insert 21 using nylon grub screws 23. 0-ring seals 24, 25 are provided around the insert 21 to seal against the internal wall of the body 1 and the internal waLl of the cap 22 respectively.
Thus together the cap 22, insert 21 and body portion I form a sealed housing within which the other components are located.
In an alternative the cap and insert may be welded together, using for example spin welding. This can remove the need for the grub screws and respective o-rings.
In another alternative the cap may be secured to the insert and hence body with a tamper proof mechanism. This may require use of a special tool to remove the cap, and may be designed so that a higher force is required to remove the cap than install the unit.
The body portion 1 comprises a main generally cylindrical portion 11 and a generally conical portion 12 which extends from the generally cylindrical portion 11 on the side opposite from the head portion 2. A screw thread 7 is provided on and around an external surface of the body portion 1 both in the region of the main cylindrical portion 11 and the conical portion 12.
The body portion 1 and indeed the whole sensor unit can be considered to have a main axis. The axis of the screw thread 7 is aligned with the axis of the body portion 1. At least when considered externally, the body portion 1 and sensor unit as a whole, when ignoring the thread 7, are symmetrical about this axis. Furthermore the body portion 1 is arranged with the thread 7 in such a way that if the sensor unit is rotated about the main axis whilst the sensor unit is inserted into the ground the thread 7 will tend to draw the sensor unit into the surrounding ground at least up to a point where the head portion 2 comes in contact with the surface of the ground. Thus when installed, or deployed, the body portion 1 and hence at least some of the internal components 3 of the sensor unit are located below ground level.
The head portion 2, and in particular the cap 22, is provided with engaging recesses 26 (see Figure 1) to aid in the act of rotating the sensor unit around the main axis for insertion of the sensor unit into the ground. In some cases a deployment tool may be provided for engaging with these recesses to aid in insertion of the unit.
The dimension and arrangement of the thread 7 is chosen so as to provide good driving and retention properties for the unit whilst not requiring too high a degree of torque for rotation of the unit during insertion.
The thread 7 is quite widely spaced on the body portion 1. That is to say the pitch of the thread 7 is significantly greater than the width of the thread such that there is a significant space between each turn along the length of the body portion 1.
Of course the body portion 1 is acting as the root of the thread and the diameter of this root is chosen in dependence on the components which are to be fitted within the compartment provided inside of the body portion 1. One factor determining this diameter may, for example, be the size of the battery 3 required to power the unit for an acceptabie period.
With the present arrangement of the sensor unit, where the body portion 1 carries a screw thread 7 such that the body portion 1 is drawn down into the ground during installation and the body portion 1 houses at least some of the components of the sensor unit, a compact design can be achieved.
It will be noted that the part of the unit i.e. the body, which carries the thread 7 also houses at least one of the internal components of the unit. Such components will typically comprise electrical and/or electronic components.
Moreover once the unit is installed, a minimum proportion of the unit remains above the ground level. This means that the installed unit is much less obtrusive than it might otherwise be, which can help it go unnoticed or undetected. Furthermore good retention characteristics can be achieved against, for example, negative buoyancy effects or casual attempts at, or accidental, disturbance or removal. The cap can be further disguised by using camouflage e.g. gluing soil and vegetation to the cap or gluing hessian cloth to it.
In an example, the overall diameter of the generally cylindrical portion 11 of the body portion may be in the order of 50mm whilst the outside diameter of the head may be in the order of 90mm. In such a case the overall length of the unit might be in the order of 250mm. In other cases using smaller batteries the body may be thinner. In practical terms the body may have a maximum diameter of at least 10mm.
The thread parameters may be selected, amongst other things, in dependence on the diameter of the body, and the type of ground in which the unit is intended to be deployed.
In one example the thread pitch may be 25mm and the thread depth 3.5mm near the head reducing to 2mm away from the head.
Generally the pitch may be in the range of 5mm to 35mm. The finer pitches will generally be matched with a smaller diameter body.
The average (along the length of the body) thread depth may be in the range of 2mm to 15mm. The greater thread depths will generally be chosen for softer ground.
Note that whilst the main portion 11 of the body portion 1 above is described as generally cylindrical, it may, within the meaning of generally cylindrical, include a slight taper along at least part of its length as is indeed the case in the present embodiment.
Figures 3 and 4 show alternative unattended ground sensor units of a similar type to that shown in Figures 1 and 2. These unattended ground sensor units have a different head configuration in that the cap includes six flats 26 as engaging portions for use with a hexagonal spanner type deployment tool 8 as shown in Figures 5A and SB.
Furthermore, as can be noted from Figures 3 and 4, the thread 7 on alternative unattended ground sensor units and/or the shape of the body portion may be different.
In the unattended ground sensor unit shown in Figure 3 there is a main generally cylindrical body portion 11 carrying the thread 7. In this embodiment this main portion 11 merges into a conical body portion 12 which in this case carries no thread and terminates in a spike 13.
In the case of the unattended ground sensor shown in Figure 4 there is a body portion having a configuration similar to that shown in Figure 1 but with a deeper thread 7.
As can be seen in Figures 5A and 5B the hexagonal spanner based deployment tool 8 has a pair of pivotally mounted arms 81 which can be pivoted between a stowed position as shown in Figure 5A and an operative position as shown in Figure 5B for use when driving the unattended ground sensor unit into the ground.
A tool for use with the unit of Figures 1 and 2 would be similar to that shown in Figures 5A and 56. The hexagonal spanner portion being replaced by a member carrying a plurality of teeth or projections for engaging in the engagement recesses 26 in the cap. The tool might have one projection for each engagement recess 26, or a smaller number.
Claims (1)
- <claim-text>Claims 1. An unattended ground sensor unit comprising at least one sensor for sensing aphysical phenomenon in the region of the unit, the unit comprising a body portion for location in the ground, the body portion having a main axis and carrying a screw thread on and around an external surface of the body portion such that rotation of the body portion around the main axis relative to surrounding ground will tend to draw the body portion into the surrounding ground.</claim-text> <claim-text>2. An unattended ground sensor according to claim 1 in which the body portion is at least part hollow.</claim-text> <claim-text>3. An unattended ground sensor according to claim I or claim 2 in which the body portion houses one or more components of the sensor unit.</claim-text> <claim-text>4. An unattended ground sensor unit according any preceding claim in which the sensor unit comprises a head portion.</claim-text> <claim-text>5. An unattended ground sensor unit according to claim 4 in which the head portion and body portion together form at least part of a housing within which other components of the sensor unit are housed.</claim-text> <claim-text>6. An unattended ground sensor unit according to claim 4 or claim 5 in which the body portion tapers so as to decrease in diameter as one moves along the axis away from the head.</claim-text> <claim-text>7. An unattended ground sensor according to any one of claims 4 to 6 in which the head portion comprises engagement portions for engaging with a tool for rotatingly driving the sensor unit during installation in the ground.</claim-text> <claim-text>8. An unattended ground sensor according to any preceding claim in which the body portion is, ignoring the screw thread, generally symmetrical about said main axis.</claim-text> <claim-text>9. An unattended ground sensor according to any preceding claim in which the sensor comprises a seismic sensor.</claim-text> <claim-text>10. An unattended ground sensor according to any preceding claim comprising transmission means for transmitting signals away from the unit in dependence on the output of the sensor.</claim-text> <claim-text>11. An unattended ground sensor according to claim 10 in which the transmission means comprises an antenna which is an internal antenna provided within the sensor unit.</claim-text> <claim-text>12. An unattended ground sensor according to claim 11 in which the antenna is provided in the head portion of the unit, and the head portion comprises a cap which comprises an antenna cover.</claim-text> <claim-text>13. An unattended ground sensor unit according to any preceding claim in which the pitch of the screw thread is greater than the width of the thread where it meets the body portion.</claim-text> <claim-text>14. An unattended ground sensor unit according to any preceding claim in which the outside diameter of the screw thread decreases as one moves along the axis away from the head.</claim-text> <claim-text>15. An unattended ground sensor unit according to any preceding claim in which the thread depth decreases as one moves along the axis away from the head.</claim-text> <claim-text>16. An unattended ground sensor unit according to any preceding claim in which the screw thread is such that the average thread depth is greater than or equal to the average width of the thread where it meets the body portion.</claim-text> <claim-text>17. A method of installing an unattended ground sensor unit according to any preceding claim comprising the steps of pushing an end of the unit into ground and rotating the unit around its main axis such that at least some of the rotational movement is translated into linear movement towards and into the ground.</claim-text>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1118460.3A GB2496106A (en) | 2011-10-25 | 2011-10-25 | Unattended ground sensors with screw thread for aiding installation into the ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1118460.3A GB2496106A (en) | 2011-10-25 | 2011-10-25 | Unattended ground sensors with screw thread for aiding installation into the ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201118460D0 GB201118460D0 (en) | 2011-12-07 |
| GB2496106A true GB2496106A (en) | 2013-05-08 |
Family
ID=45373420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1118460.3A Withdrawn GB2496106A (en) | 2011-10-25 | 2011-10-25 | Unattended ground sensors with screw thread for aiding installation into the ground |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2496106A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140328144A1 (en) * | 2013-05-03 | 2014-11-06 | Geodesign Ltd. | Casing for acoustic coupling with a substrate in seismic investigations |
| WO2015138325A1 (en) * | 2014-03-10 | 2015-09-17 | Geophysical Technology, Inc. | Geophysical sensor mounting with improved ground coupling |
| WO2016113591A1 (en) * | 2015-01-14 | 2016-07-21 | Cgg Services Sa | Systems and methods for improved coupling of geophysical sensors, where the shaft is open at the foot and couples to the sensor base plate at the head |
| CN106249280A (en) * | 2016-10-17 | 2016-12-21 | 北京达耐美贸易有限公司 | A kind of intelligent digital geophone |
| CN106772563A (en) * | 2017-02-09 | 2017-05-31 | 中国矿业大学(北京) | Wave detector and demodulation method and seismic prospecting instrument |
| CN106772562A (en) * | 2017-02-09 | 2017-05-31 | 中国矿业大学(北京) | Seismic detection device and its system and method |
| US9784887B1 (en) * | 2013-08-12 | 2017-10-10 | Physical Optics Corporation | Meteorological sensing systems and methods |
| RU2662048C1 (en) * | 2015-03-02 | 2018-07-23 | Тоталь Са | System and method for linking a seismic sensor with ground |
| WO2020029397A1 (en) * | 2018-08-10 | 2020-02-13 | 深圳面元智能科技有限公司 | Intelligent seismic sensor |
| WO2020029396A1 (en) * | 2018-08-10 | 2020-02-13 | 深圳面元智能科技有限公司 | Intelligent seismic sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1951358A (en) * | 1928-05-17 | 1934-03-20 | Harvey C Hayes | Vibration detector |
| SU1043576A1 (en) * | 1982-03-31 | 1983-09-23 | Вычислительный Центр Со Ан Ссср | Borehole caliper pickup |
| US5124956A (en) * | 1990-05-11 | 1992-06-23 | Exxon Production Research Company | Geophone with depth sensitive spikes |
| WO1992019991A1 (en) * | 1991-04-25 | 1992-11-12 | Den Norske Stats Oljeselskap A.S | Submarine measuring device |
| US6307808B1 (en) * | 2000-02-01 | 2001-10-23 | Lesley J. Schmidt | Methods and apparatuses for seismic prospecting |
| US20080137484A1 (en) * | 2006-12-06 | 2008-06-12 | Gary Lee Scott | Seismic sensor housing, seismic sensor, and seismic acquisition system made therewith |
-
2011
- 2011-10-25 GB GB1118460.3A patent/GB2496106A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1951358A (en) * | 1928-05-17 | 1934-03-20 | Harvey C Hayes | Vibration detector |
| SU1043576A1 (en) * | 1982-03-31 | 1983-09-23 | Вычислительный Центр Со Ан Ссср | Borehole caliper pickup |
| US5124956A (en) * | 1990-05-11 | 1992-06-23 | Exxon Production Research Company | Geophone with depth sensitive spikes |
| WO1992019991A1 (en) * | 1991-04-25 | 1992-11-12 | Den Norske Stats Oljeselskap A.S | Submarine measuring device |
| US6307808B1 (en) * | 2000-02-01 | 2001-10-23 | Lesley J. Schmidt | Methods and apparatuses for seismic prospecting |
| US20080137484A1 (en) * | 2006-12-06 | 2008-06-12 | Gary Lee Scott | Seismic sensor housing, seismic sensor, and seismic acquisition system made therewith |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140328144A1 (en) * | 2013-05-03 | 2014-11-06 | Geodesign Ltd. | Casing for acoustic coupling with a substrate in seismic investigations |
| US11119249B2 (en) | 2013-08-12 | 2021-09-14 | Intellisense Systems, Inc. | Meteorological sensing systems and methods |
| US9784887B1 (en) * | 2013-08-12 | 2017-10-10 | Physical Optics Corporation | Meteorological sensing systems and methods |
| WO2015138325A1 (en) * | 2014-03-10 | 2015-09-17 | Geophysical Technology, Inc. | Geophysical sensor mounting with improved ground coupling |
| CN106661940A (en) * | 2014-03-10 | 2017-05-10 | 地球物理技术公司 | Geophysical sensor mounting with improved ground coupling |
| US10054700B2 (en) | 2014-03-10 | 2018-08-21 | Geophysical Technology, Inc. | Geophysical sensor mounting with improved ground coupling |
| EP3117076A4 (en) * | 2014-03-10 | 2017-12-06 | Geophysical Technology Inc. | Geophysical sensor mounting with improved ground coupling |
| WO2016113591A1 (en) * | 2015-01-14 | 2016-07-21 | Cgg Services Sa | Systems and methods for improved coupling of geophysical sensors, where the shaft is open at the foot and couples to the sensor base plate at the head |
| RU2662048C1 (en) * | 2015-03-02 | 2018-07-23 | Тоталь Са | System and method for linking a seismic sensor with ground |
| CN106249280A (en) * | 2016-10-17 | 2016-12-21 | 北京达耐美贸易有限公司 | A kind of intelligent digital geophone |
| CN106249280B (en) * | 2016-10-17 | 2020-04-07 | 北京达耐美科技有限公司 | Intelligent digital geophone |
| CN106772562A (en) * | 2017-02-09 | 2017-05-31 | 中国矿业大学(北京) | Seismic detection device and its system and method |
| CN106772563A (en) * | 2017-02-09 | 2017-05-31 | 中国矿业大学(北京) | Wave detector and demodulation method and seismic prospecting instrument |
| WO2020029397A1 (en) * | 2018-08-10 | 2020-02-13 | 深圳面元智能科技有限公司 | Intelligent seismic sensor |
| WO2020029396A1 (en) * | 2018-08-10 | 2020-02-13 | 深圳面元智能科技有限公司 | Intelligent seismic sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201118460D0 (en) | 2011-12-07 |
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