CN102954788A - Landform measuring instrument for seabed foundation of ocean platform - Google Patents
Landform measuring instrument for seabed foundation of ocean platform Download PDFInfo
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- CN102954788A CN102954788A CN2012103798300A CN201210379830A CN102954788A CN 102954788 A CN102954788 A CN 102954788A CN 2012103798300 A CN2012103798300 A CN 2012103798300A CN 201210379830 A CN201210379830 A CN 201210379830A CN 102954788 A CN102954788 A CN 102954788A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
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Abstract
The invention provides a landform measuring instrument for a seabed foundation of an ocean platform. The landform measuring instrument mainly comprises an underwater extension set, an overwater extension set, and a cable for connecting the underwater extension set with the overwater extension set, wherein the underwater extension set is used for transmitting a high-frequency acoustic signal into water, the acoustic wave reaches the seabed foundation of the platform and then is reflected by the seabed foundation of the platform, the reflected signal is received by the underwater extension set again and subjected to conditioning operations such as filtering and amplifying, and then the processed signal is transmitted to the overwater extension set by the cable to be processed so as to obtain 255 depth measurement values. The landform measuring instrument is designed based on the multi-beam acoustic detection basic principle; and the wide coverage of the ultrasonic wave in detection can be realized by a multi-channel transmitting transducer array, and the seabed scattered echo signals can be received with high resolution by a multi-channel receiving transducer array, so that the seabed foundation of the ocean platform can be effectively measured with high precision and high efficiency.
Description
Technical field
The present invention relates to ocean remote sensing detection and offshore platform security fields, relate in particular to a kind of ocean platform foundation of sea floor topography and geomorphology measuring instrument.
Background technology
At present, there is more than 6500 production of hydrocarbons facility in the whole world in the operation of the marine site of 53 countries.Wherein, the U.S. Gulfian has more than 4000, and about 950 more than 700 more than 600 just there are nearly 200 stationary platforms in China only CNOOC in the North Sea and northeast, the Atlantic in the Middle East in the Asia, and these offshore facility are that the world has created great riches.Although be generally 20 years the designed life of stationary platform, because the needs of field produces, most platforms still continue to be on active service after reaching designed life.And soaring along with oil price, the exploitation of marginal oil field has special meaning, and this further requires the expansion of active service platform feature and the transformation that newly-built platform relies on the active service platform.All these requirement is carried out health detection and diagnosis to target platform, need to carry out system, abundant and concrete detection to platform structure, and the comprehensive evaluation platform continues to be on active service and security and the possibility of extended active duty, deeper the potential of Mining Platform.
Because the ocean platform distribution range is extensive, Platform Designing construction age span is large, facing that different severe environmental conditions and serious ground wash away, the basis is softening etc. affect the specific question of platform safety, further need to carry out the measurement of foundation of sea floor morpheme to the active service platform.
The method that the platform foundation of sea floor morpheme that present petroleum industry generally adopts is measured mainly contains two kinds, and a kind of is to utilize the frogman to touch the mode of spy, and another kind is to utilize single beam supersonic sounding instrument.Wherein, first method can only be touched spy to the minimum scope of platform pile foundation owing to be subject to the restriction of frogman's underwater operation time and scope of activities, and there is again larger security risk in simultaneously underwater operation, therefore non-forced generally also seldom employing.Utilizing single beam supersonic sounding instrument to carry out underwater platform foundation of sea floor morpheme measures, can avoid frogman's underwater operation risk, but because its measurement efficient is low, the measurement interval is large, be difficult to realize the meticulous measurement to platform ground morpheme, thereby be difficult to judge accurately that ground washes away with basic softening degree and to the influence degree of platform safety.Along with, rising steadily and the platform continuous prolongation of military service phase of World oil price, the marine oil industry is in the urgent need to a kind of high-level efficiency, high-precision ocean platform foundation of sea floor morpheme measurement mechanism, realizing the three-dimensional meticulous measurement to the platform submarine topography, and with this as one important according to Evaluation Platform security and can continue active time.
Summary of the invention
Fundamental purpose of the present invention is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of ocean platform foundation of sea floor topography and geomorphology measuring instrument, it is surveyed ultimate principle according to multi-beam acoustic and designs, can utilize hyperchannel emission transducer array to realize the wide covering of detecting ultrasonic ripple, hyperchannel receiving transducer battle array then guarantees the high resolution of bottom scattering echoed signal is received, thereby effectively realizes high precision, high-level efficiency measurement to the ocean platform foundation of sea floor.
The objective of the invention is to be realized by following technical scheme.
Ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention is characterized in that, mainly comprises under water extension set 113, extension set waterborne 114 and the cable that connects the two; It is by the emission high frequency sound wave signal in the water of extension set 113 under water, sound wave runs into the platform foundation of sea floor and reflects, and reflected signal is received by extension set under water 113 and carries out after the conditioning operation such as filtering, amplification being uploaded to by cable and obtain 255 depth measurement after extension set 114 waterborne is processed.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein extension set 113 is comprised of multi channel signals transmitter 103, transmitting transducer battle array 101, hyperchannel receiving transducer battle array 102 and reception pre-amplification circuit 104 under water; This transmitting transducer battle array 101 links to each other with hyperchannel receiving transducer battle array 102; This multi channel signals transmitter 103 links to each other with main control computer 108 with transmitting transducer battle array 101, launches high frequency sound signal under main control computer 108 controls in water; This receiving transducer battle array 102 links to each other with reception pre-amplification circuit 104, is uploaded to the signal conditioning circuit 105 in the extension set 114 waterborne after the seabed involuting wave signal that receives is amplified.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein extension set 114 waterborne is comprised of signal conditioning circuit 105, signals collecting and pre-process circuit 106, signal processing circuit 107, main control computer 108, massage storage 109, display 110, plotting apparatus 111 and subsidiary equipment 112; This signal conditioning circuit 105, signal acquisition circuit 106 and signal processing circuit 107 link to each other with main control computer 108 successively, and massage storage 109, display 110, plotting apparatus 111 and subsidiary equipment 112 link to each other with main control computer 108 respectively; This massage storage 109 links to each other with main control computer 108 by the SATA interface; This display 110 links to each other with main control computer 108 by the VGA interface; This plotting apparatus 111 links to each other with main control computer 108 by Ethernet interface; This subsidiary equipment 112 links to each other with main control computer 108 by serial ports.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein the port number of multi channel signals transmitter 103 is 56 passages, it is comprised of signal generator 201, power amplifier group 202 and hyperchannel impedance matching box circuit 203 and connects successively; This signal generator 201 links to each other with main control computer 108 by watertight cable, and hyperchannel impedance matching box circuit 203 links to each other with transmitting transducer battle array 101, makes output signal be electrically connected to transmitting transducer battle array 101.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument wherein receives pre-amplification circuit 104 and is comprised of fixed gain amplifier group 301 and the band-pass filter group 302 that electric signal successively connects; Wherein the input of fixed gain amplifier group 301 links to each other with hyperchannel receiving transducer battle array 102; Band-pass filter group 302 links to each other with the signal conditioning circuit 105 of extension set 114 waterborne; The port number of this reception pre-amplification circuit 104 is 80.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, the even arc battle array that formed by equidistant hyperchannel transducer array of transmitting transducer battle array 101 wherein, its port number is 56.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, the even linear array that formed by equidistant hyperchannel transducer array of hyperchannel receiving transducer battle array 102 wherein, its port number is 80.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein signal conditioning circuit 105 adopts the CPCI6U structure to be installed in the main control computer 108, its band-pass filter group 401, variable gain amplifier group 402, bandpass filter 403 and fixed gain amplifier group 404 by successively electric signal connection forms, wherein the input signal of band-pass filter group 401 is the output signal of extension set 113 band-pass filter groups 302 under water, and the output signal of fixed gain amplifier group 404 is connected to signals collecting and pre-process circuit 106.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein signals collecting and pre-process circuit 106 adopt the CPCI6U structure to be installed in the main control computer 108, and it is comprised of logic controller 501,1#DSP processor 502,2#DSP processor 503, analog to digital converter group 504 and pci interface controller 505; Wherein, logic controller 501,1#DSP processor 502,2#DSP processor 503 and analog to digital converter group are connected and are that electric signal connects, pci interface controller 505 is connected for electric signal each other with 1#DSP processor 502,2#DSP processor 503, logic controller 501 also links to each other with pci interface controller 601 circuit of signal processing system 107 simultaneously, and the input signal of analog to digital converter group 504 is the output signal of signal conditioning circuit 105.
Aforesaid ocean platform foundation of sea floor topography and geomorphology measuring instrument, wherein signal processing system 107 adopts the CPCI6U structure to be installed in the main control computer 108, and it is comprised of pci interface controller 601,3#DSP processor 602,4#DSP processor 603,5#DSP processor 604,6#DSP processor 605,7#DSP processor 606,8#DSP processor 607, logic controller 608 and serial ports expansion module 609; This pci interface controller 601,3#DSP processor 602,4#DSP processor 603,5#DSP processor 604,6#DSP processor 605,7#DSP processor 606,8#DSP processor 607 and serial ports expansion module 609 all link to each other by electric signal andlogic control device 608.
The beneficial effect of ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention, it is by the emission high frequency sound wave signal in the water of extension set under water, sound wave runs into the platform foundation of sea floor to be launched, and transmits to be received and carried out after the conditioning operation such as filtering, amplification being uploaded to by cable and obtain 255 depth measurement after extension set waterborne is processed by extension set under water again.Carry the morpheme measuring instrument around the platform measurement during sailing by surveying vessel, then can form the three-dimensional shaped bit image of whole ocean platform foundation of sea floor.Can be widely used in the measurements such as the washing away of ocean platform foundation of sea floor, alluvial, for platform safety provides reliable foundation of sea floor three-dimensional information.
Description of drawings:
Fig. 1 is ocean platform foundation of sea floor topography and geomorphology gauge systems composition frame chart of the present invention.
Fig. 2 is ocean platform foundation of sea floor topography and geomorphology measuring instrument signal multi channel signals transmitter block diagram of the present invention.
Fig. 3 is that ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention receives the pre-amplification circuit block diagram.
Fig. 4 is ocean platform foundation of sea floor topography and geomorphology measuring instrument signal conditioning circuit block diagram of the present invention.
Fig. 5 is ocean platform foundation of sea floor topography and geomorphology measuring instrument signals collecting of the present invention and pre-process circuit block diagram.
Fig. 6 is ocean platform foundation of sea floor topography and geomorphology measuring instrument signal processing circuit block diagram of the present invention.
Major label description in figure: 113 extension sets under water, 114 extension sets waterborne, 101 transmitting transducer battle arrays, 102 hyperchannel receiving transducer battle arrays, 103 multi channel signals transmitters, 104 receive pre-amplification circuit, 105 signal conditioning circuits, 106 signals collecting and pre-process circuit, 107 signal processing circuits, 108 main control computers, 109 massage storage, 110 displays, 111 plotting apparatuss, 112 subsidiary equipment, 201 signal generators, 202 power amplifier groups, 203 hyperchannel impedance matching box circuit, 301 fixed gain amplifier groups, 302 band-pass filter groups, 401 band-pass filter groups, 402 variable gain amplifier groups, 403 bandpass filter, 404 fixed gain amplifier groups, 501 logic controllers, 502 is the 1#DSP processor, 503 is the 2#DSP processor, 504 analog to digital converter groups, 505 is the pci interface controller, 601 is the pci interface controller, 602 is the 3#DSP processor, 603 is the 4#DSP processor, 604 is the 5#DSP processor, 605 is the 6#DSP processor, 606 is the 7#DSP processor, 607 is the 8#DSP processor, 608 is logic controller, 609 is the serial ports expansion module.
Embodiment
Such as Fig. 1 to shown in Figure 6, ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention, it mainly comprises under water extension set 113, extension set waterborne 114 and the cable that connects the two; It is by the emission high frequency sound wave signal in the water of extension set 113 under water, sound wave runs into the platform foundation of sea floor and reflects, and reflected signal is received by extension set under water 113 and carries out after the conditioning operation such as filtering, amplification being uploaded to by cable and obtain 255 depth measurement after extension set 114 waterborne is processed.
Such as Fig. 1 to shown in Figure 6, ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention, wherein, this under water extension set 113 by multi channel signals transmitter 103, transmitting transducer battle array 101, hyperchannel receiving transducer battle array 102 with receive pre-amplification circuit 104 and form; This transmitting transducer battle array 101 links to each other with hyperchannel receiving transducer battle array 102; This multi channel signals transmitter 103 links to each other with main control computer 108 with transmitting transducer battle array 101, launches high frequency sound signal under main control computer 108 controls in water; This receiving transducer battle array 102 links to each other with reception pre-amplification circuit 104, is uploaded to the signal conditioning circuit 105 in the extension set 114 waterborne after the seabed involuting wave signal that receives is amplified.This extension set 114 waterborne is comprised of signal conditioning circuit 105, signals collecting and pre-process circuit 106, signal processing circuit 107, main control computer 108, massage storage 109, display 110, plotting apparatus 111 and subsidiary equipment 112; This signal conditioning circuit 105, signal acquisition circuit 106 and signal processing circuit 107 link to each other with main control computer 108 successively, and massage storage 109, display 110, plotting apparatus 111 and subsidiary equipment 112 link to each other with main control computer 108 respectively; This massage storage 109 links to each other with main control computer 108 by the SATA interface; This display 110 links to each other with main control computer 108 by the VGA interface; This plotting apparatus 111 links to each other with main control computer 108 by Ethernet interface; This subsidiary equipment 112 links to each other with main control computer 108 by serial ports.
The port number of this multi channel signals transmitter 103 is 56 passages, and it is comprised of signal generator 201, power amplifier group 202 and hyperchannel impedance matching box circuit 203 and connects successively; This signal generator 201 links to each other with main control computer 108 by watertight cable, and hyperchannel impedance matching box circuit 203 links to each other with transmitting transducer battle array 101, makes output signal be electrically connected to transmitting transducer battle array 101, as shown in Figure 2.
This reception pre-amplification circuit 104 is comprised of fixed gain amplifier group 301 and the band-pass filter group 302 of successively electric signal connection; Wherein the input of fixed gain amplifier group 301 links to each other with hyperchannel receiving transducer battle array 102; Band-pass filter group 302 links to each other with the signal conditioning circuit 105 of extension set 114 waterborne, as shown in Figure 3; The port number of this reception pre-amplification circuit 104 is 80.
The even arc battle array that this transmitting transducer battle array 101 is comprised of equidistant hyperchannel transducer array, its port number is 56.The even linear array that this hyperchannel receiving transducer battle array 102 is comprised of equidistant hyperchannel transducer array, its port number is 80.This signal conditioning circuit 105 adopts the CPCI6U structure to be installed in the main control computer 108, its band-pass filter group 401, variable gain amplifier group 402, bandpass filter 403 and fixed gain amplifier group 404 by successively electric signal connection forms, wherein the input signal of band-pass filter group 401 is the output signal of extension set 113 band-pass filter groups 302 under water, the output signal of fixed gain amplifier group 404 is connected to signals collecting and pre-process circuit 106, as shown in Figure 4.
This signals collecting and pre-process circuit 106 adopt the CPCI6U structure to be installed in the main control computer 108, and it is comprised of logic controller 501,1#DSP processor 502,2#DSP processor 503, analog to digital converter group 504 and pci interface controller 505; Wherein, logic controller 501,1#DSP processor 502,2#DSP processor 503 and analog to digital converter group are connected and are that electric signal connects, pci interface controller 505 is connected for electric signal each other with 1#DSP processor 502,2#DSP processor 503, logic controller 501 also links to each other with pci interface controller 601 circuit of signal processing system 107 simultaneously, the input signal of analog to digital converter group 504 is the output signal of signal conditioning circuit 105, as shown in Figure 5.
This signal processing system 107 adopts the CPCI6U structure to be installed in the main control computer 108, and it is comprised of pci interface controller 601,3#DSP processor 602,4#DSP processor 603,5#DSP processor 604,6#DSP processor 605,7#DSP processor 606,8#DSP processor 607, logic controller 608 and serial ports expansion module 609; This pci interface controller 601,3#DSP processor 602,4#DSP processor 603,5#DSP processor 604,6#DSP processor 605,7#DSP processor 606,8#DSP processor 607 and serial ports expansion module 609 all link to each other by electric signal andlogic control device 608, as shown in Figure 6.
Principle of work and the groundwork flow process of ocean platform foundation of sea floor topography and geomorphology measuring instrument of the present invention are as follows:
Hyperchannel emission transducer array 101 forms the configuration of T font with hyperchannel receiving transducer battle array 102, is received in to be transmitted in down.Transducer array is installed on surveying vessel bottom or topside, guarantees that the emission battle array is consistent with the shipping agency direction, receives battle array perpendicular to the shipping agency direction.
Under the control of main control computer 108, it is the CW pulse of 300 KHz that signal generator 201 produces frequency, amplify and after hyperchannel impedance matching box circuit 203 carries out impedance matching by power amplifier group 202, via hyperchannel emission transducer array 102 electric signal is converted to acoustical signal and is transmitted in the water and sends out, the zone that the sound wave of launching shines the seabed be one narrow along the shipping agency direction, perpendicular to the wide ribbon of shipping agency direction.The emission sound wave is got back to transducer array via bottom reflection, hyperchannel receiving transducer battle array 101 is converted to electric signal to the acoustical signal that receives, signal after will nursing one's health behind process reception pre-amplification circuit 104, the signal conditioning circuit 105 delivers to signals collecting and pre-process circuit 106 carries out wave beam formation processing, form 255 wide along the shipping agency direction, perpendicular to the narrow independent received beam of shipping agency direction, the received beam data are delivered to signal processing system 107 carry out subsequent treatment and obtain 255 measured values.The boat of constantly walking by surveying vessel finally forms complete platform foundation of sea floor three-dimensional measurement image.
Embodiment:
Hyperchannel emission transducer array 101 in the embodiment of the present invention forms the configuration of T font with hyperchannel receiving transducer battle array 102, is received in to be transmitted in down.Transducer array is installed on surveying vessel bottom or topside, guarantee that the emission battle array is consistent with the shipping agency direction, receive battle array perpendicular to the shipping agency direction, in order to guarantee Effect on Detecting, during installation, from reducing sailing noise (mechanical conductive noise and propeller noise), reduce or avoid the aspect such as bubble layer and consider, transducer array produces the spray minimum when selecting to be installed in ship's navigation as far as possible and hull jolts, rocking tendency is the place of minimum also, generally in the position of disembark bow 1/3rd to 2/5ths, and draft should not surpass the degree of depth of keel, the parallel placement with the water surface of transducer front.
Hyperchannel emission transducer array 101, hyperchannel receiving transducer battle array 102, multi channel signals transmitter 103 and reception pre-amplification circuit 104 form extension set 113 under water, and multi channel signals transmitter 103 and reception pre-amplification circuit 104 all are positioned at the electronic compartment of a watertight except transducer array.
Receive pre-amplification circuit 104 and have high input impedance, low output impedance and gain bandwidth product characteristic very, also has simultaneously extremely low noise, its fixed gain is 40dB, links to each other with hyperchannel receiving transducer battle array 13, thereby receives undistortedly and amplify the seabed involuting wave signal.
Main control computer 108 in the embodiment of the present invention is the Portable integral machine of a CPCI structure, totally six groove positions, and wherein signal conditioning circuit 105 accounts for two groove positions, and signals collecting and pre-process circuit 106 and signal processing system 107 take respectively a groove position.
Also comprise operation one cover monitoring software on the main control computer 108 in this embodiment, realize the functions such as running parameter setting, figure demonstration, data storage and facility switching.The basic parameter of this example comprises that also transmitting sound power (strong, in, weak) third gear is adjustable, direct impulse length (0.15ms, 0.25ms, 0.5ms, 1ms) fourth gear is adjustable, and detect cycle (0.125s, 0.25s, 0.5s, 1s) fourth gear is adjustable.
The content that does not describe in the present embodiment is prior art, so, no longer give unnecessary details.
Advantage of the present invention is: the ultimate principle of utilizing multi-beam acoustic to survey, transmitting and receiving of each ultrasonic signal can both obtain platform foundation of sea floor 255 measurement points on every side, therefore compare with the single beam sounder and can improve greatly measurement efficient, simultaneously owing to adopted the method for acoustic telemetry, thereby avoided frogman's underwater operation, greatly improved the security that ocean platform foundation of sea floor morpheme is measured.This shows that this equipment can greatly improve platform foundation of sea floor behavior measure efficient and have boundless application prospect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. an ocean platform foundation of sea floor topography and geomorphology measuring instrument is characterized in that, mainly comprises under water extension set (113), extension set waterborne (114) and the cable that connects the two; It is by the high frequency sound wave of extension set (113) Xiang Shuizhong emission under water signal, sound wave runs into the platform foundation of sea floor and reflects, and reflected signal is received by extension set (113) under water and carries out after the conditioning operation such as filtering, amplification being uploaded to by cable and obtain 255 depth measurement after extension set waterborne (114) is processed.
2. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1, it is characterized in that described extension set under water (113) is comprised of multi channel signals transmitter (103), transmitting transducer battle array (101), hyperchannel receiving transducer battle array (102) and reception pre-amplification circuit (104); This transmitting transducer battle array (101) links to each other with hyperchannel receiving transducer battle array (102); This multi channel signals transmitter (103) links to each other with main control computer (108) with transmitting transducer battle array (101), launches high frequency sound signal under main control computer (108) control in water; This receiving transducer battle array (102) links to each other with reception pre-amplification circuit (104), is uploaded to the signal conditioning circuit (105) in the extension set waterborne (114) after the seabed involuting wave signal that receives is amplified.
3. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1, it is characterized in that described extension set waterborne (114) is comprised of signal conditioning circuit (105), signals collecting and pre-process circuit (106), signal processing circuit (107), main control computer (108), massage storage (109), display (110), plotting apparatus (111) and subsidiary equipment (112); This signal conditioning circuit (105), signal acquisition circuit (106) and signal processing circuit (107) link to each other with main control computer (108) successively, and massage storage (109), display (110), plotting apparatus (111) and subsidiary equipment (112) link to each other with main control computer (108) respectively; This massage storage (109) links to each other with main control computer (108) by the SATA interface; This display (110) links to each other with main control computer (108) by the VGA interface; This plotting apparatus (111) links to each other with main control computer (108) by Ethernet interface; This subsidiary equipment (112) links to each other with main control computer (108) by serial ports.
4. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1 and 2, it is characterized in that, the port number of described multi channel signals transmitter (103) is 56 passages, and it is comprised of signal generator (201), power amplifier group (202) and hyperchannel impedance matching box circuit (203) and connects successively; This signal generator (201) links to each other with main control computer (108) by watertight cable, and hyperchannel impedance matching box circuit (203) links to each other with transmitting transducer battle array (101), makes output signal be electrically connected to transmitting transducer battle array (101).
5. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1 and 2, it is characterized in that described reception pre-amplification circuit (104) is comprised of fixed gain amplifier group (301) and the band-pass filter group (302) of successively electric signal connection; Wherein the input of fixed gain amplifier group (301) links to each other with hyperchannel receiving transducer battle array (102); Band-pass filter group (302) links to each other with the signal conditioning circuit (105) of extension set waterborne (114); The port number of this reception pre-amplification circuit (104) is 80.
6. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1 and 2 is characterized in that, the even arc battle array that described transmitting transducer battle array (101) is comprised of equidistant hyperchannel transducer array, and its port number is 56.
7. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 1 and 2 is characterized in that the even linear array that described hyperchannel receiving transducer battle array (102) is comprised of equidistant hyperchannel transducer array, its port number are 80.
8. according to claim 1 or 3 described ocean platform foundation of sea floor topography and geomorphology measuring instruments, it is characterized in that, described signal conditioning circuit (105) adopts the CPCI6U structure to be installed in the main control computer (108), the band-pass filter group (401) that it is connected by electric signal successively, variable gain amplifier group (402), bandpass filter (403) and fixed gain amplifier group (404) form, wherein the input signal of band-pass filter group (401) is the output signal of extension set (113) band-pass filter group (302) under water, and the output signal of fixed gain amplifier group (404) is connected to signals collecting and pre-process circuit (106).
9. according to claim 1 or 3 described ocean platform foundation of sea floor topography and geomorphology measuring instruments, it is characterized in that, described signals collecting and pre-process circuit (106) adopt the CPCI6U structure to be installed in the main control computer (108), and it is comprised of logic controller (501), 1#DSP processor (502), 2#DSP processor (503), analog to digital converter group (504) and pci interface controller (505); Wherein, logic controller (501), 1#DSP processor (502), 2#DSP processor (503) are connected 504 with the analog to digital converter group) be that electric signal connects, pci interface controller (505) is connected for electric signal each other with 1#DSP processor (502), 2#DSP processor (503), logic controller (501) also links to each other with pci interface controller (601) circuit of signal processing system (107) simultaneously, and the input signal of analog to digital converter group (504) is the output signal of signal conditioning circuit (105).
10. ocean platform foundation of sea floor topography and geomorphology measuring instrument according to claim 9, it is characterized in that, described signal processing system (107) adopts the CPCI6U structure to be installed in the main control computer (108), and it is comprised of pci interface controller (601), 3#DSP processor (602), 4#DSP processor (603), 5#DSP processor (604), 6#DSP processor (605), 7#DSP processor (606), 8#DSP processor (607), logic controller (608) and serial ports expansion module (609); This pci interface controller (601), 3#DSP processor (602), 4#DSP processor (603), 5#DSP processor (604), 6#DSP processor (605), 7#DSP processor (606), 8#DSP processor (607) and serial ports expansion module (609) all link to each other by electric signal andlogic control device (608).
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| CN2012103798300A CN102954788A (en) | 2012-10-09 | 2012-10-09 | Landform measuring instrument for seabed foundation of ocean platform |
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| CN103557843A (en) * | 2013-11-13 | 2014-02-05 | 苏州声光达水下探测仪器有限公司 | Compact underwater microtopography measurement apparatus |
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