CN201527473U - Small Doppler log for an underwater research vehicle - Google Patents
Small Doppler log for an underwater research vehicle Download PDFInfo
- Publication number
- CN201527473U CN201527473U CN2009201997021U CN200920199702U CN201527473U CN 201527473 U CN201527473 U CN 201527473U CN 2009201997021 U CN2009201997021 U CN 2009201997021U CN 200920199702 U CN200920199702 U CN 200920199702U CN 201527473 U CN201527473 U CN 201527473U
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- CN
- China
- Prior art keywords
- module
- research vehicle
- underwater research
- doppler log
- processing module
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a small Doppler log for an underwater research vehicle, comprising a power supply module, a transmitter module, a digital signal processing module, a phase-shift and perpendicular modulation module, a pre-amplified and pre-weave processing module, a phase-control transducer array which are connected by cables. The beneficial effects of the utility model are that: compactness, light weight, high accuracy, large deepness and integration and is convenient for the application requirement of the high-accuracy speed measurement of the large-deepness underwater research vehicle.
Description
Technical field
The utility model relates to a kind of Doppler log, especially a kind of small-sized Doppler log that is used for underwater research vehicle.
Background technology
Small-sized Doppler log is to be used for underwater research vehicle with respect to the movement velocity of seabed (or river bed) with respect to seabed (or river bed) measurement highly.The transducer array of conventional acoustic Doppler log be by 4 independently transducer form, transducer array to transmit and receive secondary lobe bigger, influence measuring accuracy, the volume of transducer array is big, Heavy Weight, thereby be unfavorable for the installation and the use of small-sized vehicle.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of big degree of depth high precision is provided, the little lightweight small-sized Doppler log that is used for underwater research vehicle of volume.
The utility model solves the technical scheme that its technical matters adopts: this small-sized Doppler log that is used for underwater research vehicle, comprise power module, power module and transmitter module, digital signal processing module, phase shift and quadrature are reconciled module, preceding put and pre-wave beam processing module, phased transducer battle array are connected by cable.
As preferably, described power module, transmitter module, digital signal processing module, phase shift and quadrature are reconciled module, preceding put and pre-wave beam processing module is seal-installed in the metal drum die cavity.
As preferably, described phased transducer battle array is the Janus structure.
As preferably, the angle of emission received beam and vertical line is 20.7 °.
The effect that the utility model is useful is: the utlity model has that volume is little, in light weight, high precision, the big degree of depth and incorporate characteristics, be convenient to the application demand of the high precision speed-measuring of big degree of depth underwater research vehicle.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Description of reference numerals: power module 1, transmitter module 2, digital signal processing module 3, phase shift and quadrature are reconciled module 4, precedingly put and pre-wave beam processing module 5 phased transducer battle array 6, metal drum die cavity 7.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: a kind of small-sized Doppler log that is used for underwater research vehicle, reconcile module 4, preceding put and pre-wave beam processing module 5, phased transducer battle array 6 are formed by connecting by cable by power module 1 and transmitter module 2, digital signal processing module 3, phase shift and quadrature.Wherein nearly thousand transducer oscillators are placed on the rectangular node of circular flat, utilize 4 emission received beams of Janus structure (i.e. four wave beam orthogonal configuration structures) the phased transducer battle array 6 of phased principle formation, the angle of beam direction and vertical line is 20.7 °, the echoed signal that receives receives, amplifies, gathers and handle by electronic circuit, at last object information is spread out of by cable, all electronic circuits are installed concentratedly in the metal barrel-shaped cavity 7 of log, carry out data communication by cable power supply and with the outside.
Electronic circuit part is by preceding putting and pre-wave beam forms module 5, phase shift and quadrature demodulation module 4, digital signal processing module 3, transmitter module 2, power module 1 and cable and forms.Transmitted and the transmission envelop signal by digital signal processing module 3 generations, transmitting comprises broadband signal and narrow band signal; By transmitter module 2 conversion of signals is become can drive transmitting of power tube, the centre comprises current foldback circuit; Power amplifier is operated in the switch magnifying state, power amplifier output connects output transformer, form the emission high-power signal that the two-way phase place is opposite, amplitude equates, to launch high-power signal by frequency selection network and diode respectively and be added on the phased transducer battle array 6, wherein resistance, diode pair constitute special transmitting-receiving change-over circuit.
Put before wherein said and pre-wave beam form module 5 by prime amplifier, pre-wave beam form, circuit such as filtering, temporal gain control form.Form carrying out pre-wave beam after the amplification of transducer received signal, be input to bandpass filter then, the noise that the elimination passband is outer, carry out gain compensation through temporal gain control again, obtain forming each road signal of received beam, the quadrature demodulation of carrying out signal through described phase shift and quadrature demodulation module 4 is handled again, forms 8 tunnel orthogonal signal and send resolving of extraction that described signal processing module carries out doppler information and result.The power supply of all modules is undertaken providing after the power source conversion by described power module 1, and direct current supply and information transmit to be transmitted by described cable.
The physical dimension of described Doppler log is less than Φ 225mmx 175mm, and weight is less than 11.6kg (not containing cable), and frequency of operation is 150kHz ± 1kHz, and the maximum degree of depth that tests the speed can reach 500 meters.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. small-sized Doppler log that is used for underwater research vehicle, comprise power module (1), it is characterized in that: power module (1) and transmitter module (2), digital signal processing module (3), phase shift and quadrature are reconciled module (4), preceding put and pre-wave beam processing module (5), phased transducer battle array (6) are connected by cable.
2. the small-sized Doppler log that is used for underwater research vehicle according to claim 1 is characterized in that: described power module (1), transmitter module (2), digital signal processing module (3), phase shift and quadrature are reconciled module (4), preceding put and pre-wave beam processing module (5) is seal-installed in the metal drum die cavity (7).
3. the small-sized Doppler log that is used for underwater research vehicle according to claim 1 and 2 is characterized in that: described phased transducer battle array (6) is the Janus structure.
4. the small-sized Doppler log that is used for underwater research vehicle according to claim 3 is characterized in that: the emission received beam of described phased transducer battle array (6) and the angle of vertical line are 20.7 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997021U CN201527473U (en) | 2009-11-02 | 2009-11-02 | Small Doppler log for an underwater research vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201997021U CN201527473U (en) | 2009-11-02 | 2009-11-02 | Small Doppler log for an underwater research vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527473U true CN201527473U (en) | 2010-07-14 |
Family
ID=42518758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201997021U Expired - Lifetime CN201527473U (en) | 2009-11-02 | 2009-11-02 | Small Doppler log for an underwater research vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527473U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393196A (en) * | 2011-10-14 | 2012-03-28 | 中国船舶重工集团公司第七一五研究所 | Ocean internal wave acoustic detection method |
| CN104237877B (en) * | 2014-09-19 | 2017-04-12 | 陕西长岭电子科技有限责任公司 | Onboard automatic speed measuring and height measuring radar system and speed measuring and height measuring method |
-
2009
- 2009-11-02 CN CN2009201997021U patent/CN201527473U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393196A (en) * | 2011-10-14 | 2012-03-28 | 中国船舶重工集团公司第七一五研究所 | Ocean internal wave acoustic detection method |
| CN102393196B (en) * | 2011-10-14 | 2014-04-16 | 中国船舶重工集团公司第七一五研究所 | Ocean internal wave acoustic detection method |
| CN104237877B (en) * | 2014-09-19 | 2017-04-12 | 陕西长岭电子科技有限责任公司 | Onboard automatic speed measuring and height measuring radar system and speed measuring and height measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100714 |