CN210038148U - Signal acquisition protector of underwater acoustic receiving and transmitting combined energy replacing device - Google Patents
Signal acquisition protector of underwater acoustic receiving and transmitting combined energy replacing device Download PDFInfo
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- CN210038148U CN210038148U CN201920615559.3U CN201920615559U CN210038148U CN 210038148 U CN210038148 U CN 210038148U CN 201920615559 U CN201920615559 U CN 201920615559U CN 210038148 U CN210038148 U CN 210038148U
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Abstract
The embodiment of the utility model provides a signal acquisition protector that underwater acoustic receives and shuts replacement can ware is related to, include: the power amplifier is used for carrying out power amplification on the transmitting signal; the transmitting unit is connected with the power amplifier, and a transmitting signal subjected to power amplification reaches the underwater acoustic receiving and transmitting combined energy converter through the transmitting unit and drives the underwater acoustic receiving and transmitting combined energy converter to do work; the underwater acoustic transceiver energy-exchanging device is connected with the transmitting unit and is used for transmitting the transmitting signal amplified by the power amplifier in an acoustic wave form; and the receiving unit is connected with the underwater acoustic receiving and transmitting combined transducer and is used for carrying out amplitude limiting isolation on the transmitting signal so that the voltage reaching the digital collector is not higher than the safe voltage. The embodiment of the utility model provides a signal acquisition protector of transducer is put in closed receiving and dispatching to water sound can enough solve transmit voltage and collection equipment's isolation problem, can guarantee again that the weak signal of telecommunication passes through smoothly when receiving.
Description
Technical Field
The utility model relates to an underwater acoustic test technical field especially relates to an underwater acoustic receives and dispatches and closes signal acquisition protector who replaces can ware.
Background
The pulse tube measuring device consists of a sound tube body, an underwater sound receiving and transmitting combined transducer, a standard reflector and an acoustic analysis instrument, wherein a computer is provided with measuring software and controls the acoustic analysis instrument through a universal interface bus to complete the generation, acquisition and processing of signals to form a measuring result. The underwater acoustic transceiver transducer at the lower end of the sound tube transmits a sine wave which is subjected to pulse modulation and amplification into the sound tube, the sine wave is reflected and transmitted by a sample in the sound tube, wherein a sample reflected wave is received by the underwater acoustic transceiver transducer, a transmitted wave of the sample is reflected by an acoustic hard or acoustic soft tail end standard reflector at the tail end of the sound tube, and the sample passes through the sample for the second time and is received by the underwater acoustic transceiver transducer. And the computer receives the reflection and transmission signals of the sample through the control bus and obtains a measurement result through calculation and processing of measurement software.
Based on this, the inventor of the utility model finds that, at present in the underwater acoustic test field, most of tests are carried out with receiving respectively, carry out the sound wave transmission through the combined transducer (sonar) of underwater acoustic transceiver promptly, then receive the underwater acoustic signal through the hydrophone. In the underwater sound 'pulse tube method' measuring system, a sample is arranged in the middle of a sound tube, and the transmission and the reception of signals are realized by the same underwater sound transmitting and receiving combined transducer through time difference. Because collection and transmission are all transmitted by the same cable, when signal transmission is carried out, signals (strong electric signals) amplified by a power amplifier are transmitted in the cable, the voltage is dozens of volts or even hundreds of volts, the received signals are weak electric signals when the cable is used for receiving, the voltage signals are dozens of millivolts or even hundreds of millivolts, and because the transmission and the reception of the underwater acoustic transceiver energy-exchanging device are transmitted through the same cable, the receiving part needs to be protected, otherwise, the transmitted high voltage can cause irreversible damage to the signal collection equipment.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a signal acquisition protector for underwater acoustic transceiver combined transducer, which can solve the isolation problem between the transmitting voltage and the acquisition device and can ensure that the weak electrical signal can pass through smoothly when receiving.
For solving above technical problem, the embodiment of the utility model provides an underwater acoustic receives and shuts signal acquisition protector who replaces can ware, include:
the power amplifier is used for carrying out power amplification on the transmitting signal;
the transmitting unit is connected with the power amplifier, and a transmitting signal subjected to power amplification reaches the underwater acoustic receiving and transmitting combined energy converter through the transmitting unit and drives the underwater acoustic receiving and transmitting combined energy converter to do work;
the underwater acoustic transceiver energy-exchanging device is connected with the transmitting unit and is used for transmitting the transmitting signal amplified by the power amplifier in an acoustic wave form;
and the receiving unit is connected with the underwater acoustic receiving and transmitting combined transducer and is used for carrying out amplitude limiting isolation on the transmitting signal so that the voltage reaching the digital collector is not higher than the safe voltage.
Optionally, the underwater acoustic transceiver transducer is further configured to convert the reflected sound wave into a reflected signal, where the reflected signal is a weak current signal, and the receiving unit is further configured to receive the reflected signal converted by the underwater acoustic transceiver transducer and send the reflected signal to the digital collector.
Optionally, the transmitting unit comprises: the anode of a first diode VT1 is connected with the cathode of a second diode VT2, and the cathode of the first diode VT1 is connected with the anode of the second diode VT 2;
the anode of the power amplifier is connected with the anode of the first diode VT1, and the anode of the power amplifier is connected with the cathode of the second diode VT 2;
the anode of the underwater acoustic transceiver is connected with the cathode of the first diode VT1, and the anode of the underwater acoustic transceiver is connected with the anode of the second diode VT 2.
Optionally, the receiving unit includes: the blocking capacitor C is connected with the current limiting resistor R in series and is connected with the anode of the digital collector;
the third diode VT3, the fourth diode VT4, the fifth diode VT5 and the sixth diode VT6 are connected in series to form a first group of diodes, the seventh diode VT7, the eighth diode VT8, the ninth diode VT9 and the twelfth diode VT10 are connected in series to form a second group of diodes, the first group of diodes and the second group of diodes are connected in parallel in an inverted state to form a voltage stabilizing circuit, and the voltage stabilizing circuit is connected in parallel between the current limiting resistor R and the digital collector.
Optionally, the resistance value of the current limiting resistor R is greater than the internal resistance of the underwater acoustic combined energy converter.
Optionally, the first diode VT1 and the second diode VT2 are switching diodes.
Optionally, the third diode VT3, the fourth diode VT4, the fifth diode VT5, the sixth diode VT6, the seventh diode VT7, the eighth diode VT8, the ninth diode VT9, and the twelfth diode VT10 are zener diodes.
Optionally, the internal resistance of the digital collector is more than one thousand times of the resistance value of the current-limiting resistor.
Optionally, the power amplifier, the transmitting unit, the hydroacoustic transceiving transducer, the receiving unit, and the digital collector have a common negative electrode.
The embodiment of the utility model provides a pair of signal acquisition protector that underwater acoustic receives and shuts replacement can ware can enough solve transmitting voltage and collection equipment's isolation problem, can guarantee again that the weak electricity signal of telecommunication passes through smoothly when receiving.
Other features and aspects of the present invention will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a signal acquisition protector of an underwater acoustic transceiver energy converter according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a signal acquisition protector of an underwater acoustic transceiver energy converter according to another embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Example 1
Fig. 1 shows the embodiment of the present invention provides a structural schematic diagram of a signal acquisition protector of an underwater acoustic transceiver combined transducer, as shown in the figure, the signal acquisition protector of the underwater acoustic transceiver combined transducer includes: a power amplifier 10, a transmitting unit 20, a hydroacoustic transmitting and receiving transducer 30 and a receiving unit 40.
And a power amplifier 10 for power amplifying the transmission signal. And the transmitting unit 20 is connected with the power amplifier 10, and the transmitting signal after power amplification reaches the underwater acoustic transceiver transducer 30 through the transmitting unit 20 and drives the underwater acoustic transceiver transducer 30 to do work. And the underwater acoustic transceiver transducer 30 is connected with the transmitting unit 20 and is used for transmitting the transmitting signal amplified by the power amplifier 10 in the form of sound waves. And the receiving unit 40 is connected with the underwater acoustic transceiver transducer 30 and is used for carrying out amplitude limiting isolation on the transmitted signal so that the voltage reaching the digital collector 50 is not higher than the safe voltage.
Optionally, the hydroacoustic receiving and transmitting transducer 30 is further configured to convert the reflected sound wave into a reflected signal, where the reflected signal is a weak electric signal, and the receiving unit 40 is further configured to receive the reflected signal converted by the hydroacoustic receiving and transmitting transducer 30 and send the reflected signal to the digital collector 50.
Therefore, the embodiment of the utility model provides a pair of underwater acoustic receives and closes the signal acquisition protector of replacement can ware can enough solve transmit voltage and collection equipment's isolation problem, can guarantee again that the weak signal of telecommunication passes through smoothly when receiving.
Example 2
Fig. 2 shows the schematic structural diagram of a signal acquisition protector for an underwater acoustic transceiver combined transducer provided in an embodiment of the present invention, as shown in the figure, the signal acquisition protector for an underwater acoustic transceiver combined transducer includes: a power amplifier 10, a transmitting unit 20, a hydroacoustic transmitting and receiving transducer 30 and a receiving unit 40.
The power amplifier 10 is used to power amplify the transmission signal. The transmitting unit 20 is connected to the power amplifier 10, and the transmitting signal after power amplification reaches the hydroacoustic transceiving transducer 30 through the transmitting unit 20 and drives the hydroacoustic transceiving transducer 30 to do work. The hydroacoustic transceiver transducer 30 is connected to the transmitting unit 20, and is configured to transmit the transmission signal amplified by the power amplifier 10 in the form of sound wave. The receiving unit 40 is connected to the hydroacoustic transceiver 30, and is configured to perform amplitude limiting isolation on the transmitted signal, so that the voltage reaching the digital collector 50 is not higher than a safe voltage.
Optionally, the hydroacoustic receiving and transmitting transducer 30 is further configured to convert the reflected sound wave into a reflected signal, where the reflected signal is a weak electric signal, and the receiving unit 40 is further configured to receive the reflected signal converted by the hydroacoustic receiving and transmitting transducer 30 and send the reflected signal to the digital collector 50.
Optionally, the transmitting unit 20 includes: the anode of the first diode VT1 is connected to the cathode of the second diode VT2, and the cathode of the first diode VT1 is connected to the anode of the second diode VT 2. The anode of the power amplifier 10 is connected to the anode of the first diode VT1, and the anode of the power amplifier 10 is connected to the cathode of the second diode VT 2. The anode of the hydroacoustic receiving and transmitting transducer 30 is connected to the cathode of the first diode VT1, and the anode of the hydroacoustic receiving and transmitting transducer 30 is connected to the anode of the second diode VT2 and to the dc blocking capacitor C.
Optionally, the receiving unit 40 includes: the blocking capacitor C is connected in series with the current limiting resistor R and is connected with the anode of the digital collector 50. The third diode VT3, the fourth diode VT4, the fifth diode VT5 and the sixth diode VT6 are connected in series to form a first group of diodes, the seventh diode VT7, the eighth diode VT8, the ninth diode VT9 and the twelfth diode VT10 are connected in series to form a second group of diodes, the first group of diodes and the second group of diodes are connected in parallel in an inverted state to form a voltage stabilizing circuit, and the voltage stabilizing circuit is connected in parallel between the current limiting resistor R and the digital collector 50.
Optionally, the current limiting resistor R has a resistance value greater than the internal resistance of the hydroacoustic receiving and transmitting transducer 30.
Optionally, the first diode VT1 and the second diode VT2 are switching diodes.
Optionally, the third diode VT3, the fourth diode VT4, the fifth diode VT5, the sixth diode VT6, the seventh diode VT7, the eighth diode VT8, the ninth diode VT9, and the twelfth diode VT10 are zener diodes.
Optionally, the internal resistance of the digital collector 50 is more than one thousand times of the resistance of the current limiting resistor R.
Optionally, the power amplifier 10, the transmitting unit 20, the hydroacoustic transducer 30, the receiving unit 40, and the digital collector 50 have a common negative polarity.
The embodiment of the utility model provides a pair of its theory of operation of signal acquisition protector of underwater acoustic receiving closes replacement can ware includes: when the underwater acoustic transceiver transducer 30 is used as a transmitting source, a high-voltage signal amplified by the power amplifier 10 reaches a terminal of the underwater acoustic transceiver transducer 30 through the switching diodes VT 1-VT 2 to drive the underwater acoustic transceiver transducer 30 to do work; at this time, a part of the transmission signal reaches the receiving unit 40, and reaches the current-limiting resistor R through the blocking capacitor C, because the resistance value of the current-limiting resistor R is greater than the internal resistance of the hydroacoustic transceiving combined transducer 30, and optionally, the resistance value of the current-limiting resistor R is much greater than the internal resistance of the hydroacoustic transceiving combined transducer 30, the current flowing through the current-limiting resistor R is much smaller than the current flowing to the hydroacoustic transceiving combined transducer 30, and then passes through the voltage stabilization (5V) of the voltage stabilization diodes VT 3-VT 10, the voltage reaching the digital collector 50 is already a safe voltage, and the generally collected voltage range is ± 10V. Therefore, the isolation problem of the emission voltage and the acquisition equipment is solved.
When the hydroacoustic transceiver transducer 30 is used as a receiving source, one path of a reflected signal received by the hydroacoustic transceiver transducer 30 reaches diodes VT1 to VT2 of the transmitting unit 20, and since a voltage ratio of a sound pressure signal received by the hydroacoustic transceiver transducer 30 after the acoustoelectric conversion is low, generally ranges from several millivolts to several hundred millivolts, and does not satisfy a conduction voltage of a switching diode, the reflected signal cannot reach the power amplifier 10 through the transmitting unit 20; the other path of the reflected signal received by the underwater acoustic transceiver transducer 30 reaches the receiving unit 40, passes through the blocking capacitor C, and reaches the digital collector 50 through the current limiting resistor R, because the collected voltage ratio is low, the voltage stabilizing diodes VT 3-VT 10 do not play a role, the internal resistance of the digital collector 50 is far greater than the current limiting resistor R, the resistance of the former is more than one thousand times of the latter, optionally thousands times, so the voltage divided by the current limiting resistor R can be ignored. Therefore, the weak electric signal can be ensured to pass through smoothly during receiving, and the method has the advantages of high response speed (in nanosecond level), no interference and high stability.
Therefore, the embodiment of the utility model provides a pair of underwater acoustic receives and closes signal acquisition protector of replacement can ware can enough solve the isolation problem of transmitting voltage and collection equipment, can guarantee again that the weak signal of telecommunication passes through smoothly when receiving to have that response speed is fast (at nanosecond level), noiseless, the high advantage of stability.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A signal acquisition protector of an underwater acoustic transceiver transducer, comprising:
the power amplifier is used for carrying out power amplification on the transmitting signal;
the transmitting unit is connected with the power amplifier, and a transmitting signal subjected to power amplification reaches the underwater acoustic receiving and transmitting combined energy converter through the transmitting unit and drives the underwater acoustic receiving and transmitting combined energy converter to do work;
the underwater acoustic transceiver energy-exchanging device is connected with the transmitting unit and is used for transmitting the transmitting signal amplified by the power amplifier in an acoustic wave form;
and the receiving unit is connected with the underwater acoustic receiving and transmitting combined transducer and is used for carrying out amplitude limiting isolation on the transmitting signal so that the voltage reaching the digital collector is not higher than the safe voltage.
2. The signal acquisition protector according to claim 1, wherein the hydroacoustic receiving and transmitting combined transducer is further configured to convert a reflected sound wave into a reflected signal, the reflected signal is a weak electric signal, and the receiving unit is further configured to receive the reflected signal converted by the hydroacoustic receiving and transmitting combined transducer and send the reflected signal to the digital collector.
3. The signal acquisition protector as recited in claim 2, wherein the transmitting unit comprises: the anode of the first diode (VT1) is connected with the cathode of the second diode (VT2), and the cathode of the first diode (VT1) is connected with the anode of the second diode (VT 2);
the anode of the power amplifier is connected with the anode of the first diode (VT1), and the anode of the power amplifier is connected with the cathode of the second diode (VT 2);
the anode of the underwater acoustic coupling energy converter is connected with the cathode of the first diode (VT1), and the anode of the underwater acoustic coupling energy converter is connected with the anode of the second diode (VT 2).
4. A signal acquisition protector according to claim 3 wherein the receiving unit comprises: a blocking capacitor (C) is connected with a current limiting resistor (R) in series and is connected with the anode of the digital collector;
the third diode (VT3), the fourth diode (VT4), the fifth diode (VT5) and the sixth diode (VT6) are connected in series to form a first group of diodes, the seventh diode (VT7), the eighth diode (VT8), the ninth diode (VT9) and the twelfth diode (VT10) are connected in series to form a second group of diodes, the first group of diodes and the second group of diodes are connected in parallel in an inverted mode to form a voltage stabilizing circuit, and the voltage stabilizing circuit is connected between the current limiting resistor (R) and the digital collector in parallel.
5. A signal acquisition protector according to claim 4, characterised in that the resistance of the current limiting resistor (R) is greater than the internal resistance of the hydroacoustic combined energy converter.
6. The signal acquisition protector as claimed in claim 4, wherein the first diode (VT1) and the second diode (VT2) are switching diodes.
7. The signal acquisition protector as claimed in claim 4, wherein the third diode (VT3), the fourth diode (VT4), the fifth diode (VT5), the sixth diode (VT6), the seventh diode (VT7), the eighth diode (VT8), the ninth diode (VT9), and the twelfth diode (VT10) are zener diodes.
8. The signal acquisition protector of claim 4, wherein the internal resistance of the digital acquisition unit is more than one thousand times the resistance of the current limiting resistor.
9. The signal acquisition protector of claim 4 wherein the power amplifier, the transmitting unit, the hydroacoustic transceiving transducer, the receiving unit, and the digital acquisition unit have a common negative polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615559.3U CN210038148U (en) | 2019-04-30 | 2019-04-30 | Signal acquisition protector of underwater acoustic receiving and transmitting combined energy replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615559.3U CN210038148U (en) | 2019-04-30 | 2019-04-30 | Signal acquisition protector of underwater acoustic receiving and transmitting combined energy replacing device |
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| Publication Number | Publication Date |
|---|---|
| CN210038148U true CN210038148U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920615559.3U Expired - Fee Related CN210038148U (en) | 2019-04-30 | 2019-04-30 | Signal acquisition protector of underwater acoustic receiving and transmitting combined energy replacing device |
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| CN (1) | CN210038148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007295A (en) * | 2019-04-30 | 2019-07-12 | 中国船舶工业系统工程研究院 | The signal acquisition protector of energy converter is set in a kind of underwater sound transmitting-receiving conjunction |
-
2019
- 2019-04-30 CN CN201920615559.3U patent/CN210038148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007295A (en) * | 2019-04-30 | 2019-07-12 | 中国船舶工业系统工程研究院 | The signal acquisition protector of energy converter is set in a kind of underwater sound transmitting-receiving conjunction |
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Granted publication date: 20200207 |