CN101963672A - Detector - Google Patents
Detector Download PDFInfo
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- CN101963672A CN101963672A CN 201010234924 CN201010234924A CN101963672A CN 101963672 A CN101963672 A CN 101963672A CN 201010234924 CN201010234924 CN 201010234924 CN 201010234924 A CN201010234924 A CN 201010234924A CN 101963672 A CN101963672 A CN 101963672A
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- low
- high frequency
- frequency
- wave detector
- frequency detector
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- 230000001133 acceleration Effects 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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Abstract
The invention discloses a detector, which comprises a low frequency detector (1) and a high frequency detector (2), wherein the high frequency detector (2) is rigidly fixed to the low frequency detector (1). In the technical scheme, the low frequency detector (1) is taken as a carrier, the high frequency detector (2) is rigidly fixed to the low frequency detector (1), and the two different types of detectors respectively detect two high and low dominant frequency ranges to acquire rich vibration signals. The weight of the high frequency detector (2) is light, so the high frequency detector (2) cannot influence the frequency response characteristic of the low frequency detector (1); and the high frequency detector (2) is attached to the heavy low frequency detector (1), so the high frequency detector (2) can be effectively arranged on the surface of a measured medium through the heavy low frequency detector (1).
Description
Technical field
The present invention relates to a kind of wave detector, particularly, relate to a kind of wave detector that is used for shallow seismic exploration field, land.
Background technology
In seismic prospecting, consider the wave detector cost performance and assign convenience, mostly use low-frequency seismograph
(for example magnetoelectric velocity transducer) carries out the dielectric surface shock detection.Yet in the vibration signal that epicenter excitation produces, the vibration signal that existing frequency is relatively low, the high-frequency vibration signal that has high-resolution seismic survey to need again.The energy of high-frequency vibration signal is little, needs highly sensitive high frequency geophone to receive.Particularly in shallow seismic exploration, because depth of exploration is shallow, needs as the high resolving power exploration, often all on exciting and receive, elastic wave makes great efforts to improve frequency, than hard ground, particularly on concrete plate body, grade beam, the road surface, the high frequency elastic wave excites and does not have problems, but use traditional speed pickup, owing to himself frequency response characteristic restriction, high seismic signal to the hundreds of hertz, outside the significant response frequency band range of speed pickup, this part signal can not complete documentation.And for high frequency geophone, acceleration transducer for example, it is highly sensitive, the high frequency response performance outstanding, but individuality and quality are less, can not be placed in effectively on the measured medium surface, consider factors such as work efficiency, service efficiency is lower in seismic prospecting.
Summary of the invention
Technical matters to be solved by this invention provides and a kind ofly can detect simultaneously low frequency signal and high-frequency signal effectively and can be placed in the lip-deep wave detector of measured medium effectively.
For solving the problems of the technologies described above, the invention provides a kind of wave detector, this wave detector comprises low-frequency seismograph and high frequency geophone, described high frequency geophone is rigidly fixed on the described low-frequency seismograph.
In technique scheme of the present invention, utilize low-frequency seismograph as carrier, high frequency geophone is rigidly fixed on the low-frequency seismograph, two dissimilar wave detectors detect the vibration signal that can obtain to enrich to high and low two primary bands respectively.The lighter weight of high frequency geophone can not influence the Frequency Response of low-frequency seismograph substantially, and therefore high frequency geophone can be placed on the measured medium surface by the big low-frequency seismograph of quality effectively attached on the bigger low-frequency seismograph of quality.
Other features and advantages of the present invention will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of instructions, is used from explanation the present invention with the specific embodiment of the present invention one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the wave detector of one embodiment of the present invention;
Fig. 2 is the structural representation according to the wave detector of another embodiment of the invention;
Fig. 3 is the structural representation according to the wave detector of also another kind of embodiment of the present invention.
Description of reference numerals
1 low-frequency seismograph, 2 high frequency geophones
11 shells, 12 core bodys
13 core body compressing members, 131 cavitys
3 tail bones
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
As shown in Figure 1 to Figure 3, the invention provides a kind of wave detector, this wave detector comprises low-frequency seismograph 1 and high frequency geophone 2, and described high frequency geophone 2 is rigidly fixed on the described low-frequency seismograph 1.
In technique scheme of the present invention, low-frequency seismograph 1 and high frequency geophone 2 have constituted dual sensor.Utilize low-frequency seismograph 1 as carrier, high frequency geophone 2 is rigidly fixed on the low-frequency seismograph 1, two dissimilar wave detectors detect the vibration signal that can obtain to enrich to high and low two primary bands respectively.The lighter weight of high frequency geophone 2 (being generally several grams or tens grams), substantially can not influence the Frequency Response of low-frequency seismograph 1, and therefore high frequency geophone 2 can be placed on the measured medium surface by the big low-frequency seismograph 1 of quality effectively attached on the bigger low-frequency seismograph 1 of quality.In technique scheme, high frequency geophone 2 has had the additional mass of low-frequency seismograph 1, its high frequency response performance can be under some influence, but its high frequency response performance has still promoted the high frequency spatial of useful signal greatly, and the response band width of low-frequency seismograph 1 has been expanded in the introducing of high frequency geophone 2.
The implication of the term in this specification and claims book " low-frequency seismograph " and " high frequency geophone " is applicable to explanation well known in the art, for example the response frequency range of low-frequency seismograph is several hertz～over one hundred hertz, and the response frequency range of high frequency geophone is tens of hertz～thousands of hertz.For example, described low-frequency seismograph 1 can be speed pickup, perhaps can be the magneto-electric wave detector.Described high frequency geophone 2 can be acceleration transducer, for example the high sensitivity acceleration transducer of piezoelectric type, pressure resistance type or electric capacity transform.
Low-frequency seismograph 1 generally includes shell 11 and is encapsulated in core body 12 and core body compressing member 13 in this shell 11, and described core body compressing member 13 can be between the end face or bottom surface of core body 12 and described shell 11, so that described core body 12 is pressed on the end face or bottom surface of described shell 11.For example in embodiment shown in Figure 1, core body compressing member 13 is pressed to described core body 12 on the end face of described shell 11 between the end face of core body 12 and described shell 11; In embodiment shown in Figure 2, core body compressing member 13 is pressed to described core body 12 on the bottom surface of described shell 11 between the bottom surface of core body 12 and described shell 11.Can as the case may be high frequency geophone 2 be rigidly fixed on the appropriate location of low-frequency seismograph 1.For example as depicted in figs. 1 and 2, be formed with cavity 131 in the described core body compressing member 13, described high frequency geophone 2 is positioned at this cavity 131.For example, as depicted in figs. 1 and 2, described core body compressing member 13 can be tubular, and promptly core body compressing member 13 up/down perforations are formed by a circle circumferential wall.At this moment, high frequency geophone 2 can be rigidly fixed on the core body 12 of low-frequency seismograph 1 or on the shell 11.
In addition, as shown in Figure 3, described high frequency geophone 2 can be positioned at outside the described shell 11, and is rigidly fixed on the top surface of described shell 11.
In scheme provided by the invention, high frequency geophone 2 is rigidly fixed on the low-frequency seismograph 1, this rigidly fixes and can realize by various suitable modes, and for example, described high frequency geophone 2 can be fixed on the low-frequency seismograph 1 by screw or bonding agent (for example solidifying glue).Preferably, high frequency geophone 2 is detachably fixed on the low-frequency seismograph 1, thereby can change impaired wave detector easily.
When arranging, can be so that the direction of the high sensitivity main shaft of low-frequency seismograph 1 and high frequency geophone 2 be consistent, if high frequency geophone 2 is two, three-component seismometer, then can be so that one of them high sensitivity main shaft of high frequency geophone 2 is consistent with the direction of the high sensitivity main shaft of low-frequency seismograph 1.And low-frequency seismograph 1 can pass through different transfer wires with high frequency geophone 2, with test signal introducing digital signal acquiring passage separately.
In use, for smooth and hard measured mediums such as mattess, can directly wave detector (shell 11 bottoms of for example above-mentioned low-frequency seismograph 1) be fixed on this measured medium surface by gypsum etc.And for the loose measured medium of some uneven quality, then can plug by the tail bone 3 that is fixed on described low-frequency seismograph 1 bottom on this measured medium surface, to detect.Tail bone 3 for example can be fixed on the bottom of the shell 11 of low-frequency seismograph 1 by being threaded.
Need to prove that each the concrete technical characterictic described in above-mentioned embodiment can carry out combination in any by any suitable manner, it falls within the scope disclosed in this invention equally.In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Below describe preferred implementation of the present invention in conjunction with the accompanying drawings in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Claims (10)
1. a wave detector is characterized in that, this wave detector comprises low-frequency seismograph (1) and high frequency geophone (2), and described high frequency geophone (2) is rigidly fixed on the described low-frequency seismograph (1).
2. wave detector according to claim 1 is characterized in that, described low-frequency seismograph (1) is a speed pickup.
3. wave detector according to claim 1 is characterized in that, described low-frequency seismograph (1) is the magneto-electric wave detector.
4. according to each described wave detector in the claim 1 to 3, it is characterized in that described high frequency geophone (2) is an acceleration transducer.
5. wave detector according to claim 1, it is characterized in that, described low-frequency seismograph (1) comprises shell (11) and is encapsulated in this shell (11) interior core body (12) and core body compressing member (13), and described core body compressing member (13) is positioned between the end face or bottom surface of core body (12) and described shell (11), so that described core body (12) is pressed on the end face or bottom surface of described shell (11).
6. wave detector according to claim 5 is characterized in that, is formed with cavity (131) in the described core body compressing member (13), and described high frequency geophone (2) is positioned at this cavity (131).
7. wave detector according to claim 6 is characterized in that, described core body compressing member (13) is a tubular.
8. wave detector according to claim 5 is characterized in that, described high frequency geophone (2) is positioned at outside the described shell (11), and is rigidly fixed on the top surface of described shell (11).
9. wave detector according to claim 1 is characterized in that, described high frequency geophone (2) by screw or adhesive securement on described low-frequency seismograph (1).
10. wave detector according to claim 1 is characterized in that, described wave detector also comprises the tail bone (3) that is fixed on described low-frequency seismograph (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010234924XA CN101963672B (en) | 2010-07-21 | 2010-07-21 | Detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010234924XA CN101963672B (en) | 2010-07-21 | 2010-07-21 | Detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101963672A true CN101963672A (en) | 2011-02-02 |
| CN101963672B CN101963672B (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010234924XA Active CN101963672B (en) | 2010-07-21 | 2010-07-21 | Detector |
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| Country | Link |
|---|---|
| CN (1) | CN101963672B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253408A (en) * | 2011-04-14 | 2011-11-23 | 中国神华能源股份有限公司 | Wave detector |
| CN102628960A (en) * | 2011-12-22 | 2012-08-08 | 中国科学院地质与地球物理研究所 | Velocity and acceleration two-parameter digital geophone |
| CN105203205A (en) * | 2015-08-20 | 2015-12-30 | 中钢集团马鞍山矿山研究院有限公司 | Fixing method of explosion vibration testing geophone |
| CN105547467A (en) * | 2015-12-19 | 2016-05-04 | 辽宁科技学院 | Device for fixing explosion vibration measuring sensor on soil layer |
| CN110456408A (en) * | 2019-08-02 | 2019-11-15 | 中铁第四勘察设计院集团有限公司 | A kind of signal collecting device, method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762146A1 (en) * | 1995-09-12 | 1997-03-12 | PRAKLA-SEISMOS GmbH | Seismic sensor |
| CN201444203U (en) * | 2009-06-26 | 2010-04-28 | 威海双丰电子集团有限公司 | Core body combined device of seismometer |
| CN201796148U (en) * | 2010-07-21 | 2011-04-13 | 中国神华能源股份有限公司 | Detector |
-
2010
- 2010-07-21 CN CN201010234924XA patent/CN101963672B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0762146A1 (en) * | 1995-09-12 | 1997-03-12 | PRAKLA-SEISMOS GmbH | Seismic sensor |
| CN201444203U (en) * | 2009-06-26 | 2010-04-28 | 威海双丰电子集团有限公司 | Core body combined device of seismometer |
| CN201796148U (en) * | 2010-07-21 | 2011-04-13 | 中国神华能源股份有限公司 | Detector |
Non-Patent Citations (1)
| Title |
|---|
| 《水利水电科技进展》 20041031 朱德兵等 惯性式传感器性能特点及原位测试实验分析 30-33 1-10 第24卷, 第5期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253408A (en) * | 2011-04-14 | 2011-11-23 | 中国神华能源股份有限公司 | Wave detector |
| CN102628960A (en) * | 2011-12-22 | 2012-08-08 | 中国科学院地质与地球物理研究所 | Velocity and acceleration two-parameter digital geophone |
| CN102628960B (en) * | 2011-12-22 | 2014-06-11 | 中国科学院地质与地球物理研究所 | Velocity and acceleration two-parameter digital geophone |
| CN105203205A (en) * | 2015-08-20 | 2015-12-30 | 中钢集团马鞍山矿山研究院有限公司 | Fixing method of explosion vibration testing geophone |
| CN105547467A (en) * | 2015-12-19 | 2016-05-04 | 辽宁科技学院 | Device for fixing explosion vibration measuring sensor on soil layer |
| CN110456408A (en) * | 2019-08-02 | 2019-11-15 | 中铁第四勘察设计院集团有限公司 | A kind of signal collecting device, method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101963672B (en) | 2012-09-05 |
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