CN110045355A - A kind of echo depth sounder simulation calibration method based on sonic transducer - Google Patents
A kind of echo depth sounder simulation calibration method based on sonic transducer Download PDFInfo
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- CN110045355A CN110045355A CN201910317289.2A CN201910317289A CN110045355A CN 110045355 A CN110045355 A CN 110045355A CN 201910317289 A CN201910317289 A CN 201910317289A CN 110045355 A CN110045355 A CN 110045355A
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- depth
- echo
- sounding instrument
- indication
- signal generator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention proposes a kind of, and the echo depth sounder based on sonic transducer simulates calibration method, this method simulates the sound echo that sounding instrument issues by receiving energy converter, digital signal generator and transmitting transducer, sounding instrument probe is sent back to after being delayed, and carries out the analog detection of different depth.Emitted energy converter is converted to echo acoustical signal there are certain delay, and this method is also modified depth measurement indicating value and the depth measurement error of indication.The present invention realizes the simulation calibrating of echo depth sounder with energy converter, transmitting transducer and digital signal generator simulated sound wave echo is received according to the principle of echo depth sounder；The channel delay of digital oscilloscope is calculated, the depth measurement error of indication is modified, improves the accuracy of measurement.
Description
Technical field
The present invention relates to acoustic equipment detection technique field more particularly to a kind of echo depth sounder moulds based on sonic transducer
Quasi- calibration method.
Background technique
Echo depth sounder is a kind of equipment for being reflected in water using sound wave and carrying out depth measurement, and the result of water-depth measurement is straight
Connecing influences navigation safety, the clearing of dredging work amount and related scientific research quality of achievement.The calibration of early stage echo depth sounder passes through
The mode of manual measurement, device is heavy, method is cumbersome, accuracy is low, is difficult to realize the accurate calibration of echo depth sounder.Base at present
In electric signal echo depth sounder simulation calibrating device can accurate water depth simulation and pulse signal, the true depth of water can be replaced to unicast
Echo beam sounding instrument carries out calibration, and accuracy can reach the performance requirement of measurement verification, universal value with higher.
But during carrying out data analysis and calibration, the echo depth sounder simulation calibrating device based on electric signal can only
As a kind of supplement actually compared in water and means are improved, sonic transducer is not involved in calibration process, and performance can not be verified,
Reliability is poor.
Summary of the invention
In view of this, the invention proposes a kind of simulation of the echo depth sounder based on sonic transducer of high reliablity calibratings
Method.
The technical scheme of the present invention is realized as follows: a kind of echo depth sounder based on sonic transducer simulates calibrating side
Method, comprising the following steps:
A. the work for using couplant and sounding instrument to pop one's head in respectively the working face for receiving energy converter and transmitting transducer working face
It is fitted closely together as face, sounding instrument is popped one's head in and is connect with sounding instrument；
B. the analog input channel of the output end and digital oscilloscope that receive energy converter is connected, by the touching of digital oscilloscope
The external trigger port for sending out output port and digital signal generator connects；The output port of digital signal generator is pressed with height
The input terminal connection of big device, the output end of high-voltage amplifier and the input terminal of transmitting transducer connect；
C. setting simulation calibrating depth and the velocity of sound of sound wave is simulated, calculating simulation acoustic transit time, and when by the propagation
Between be set as the signal Time delay of digital signal generator；
D. sounding instrument, sounding instrument probe transmitting acoustic signals, after reception energy converter receives the acoustic signals, by showing are opened
Wave device measures the frequency and pulse period number of the acoustic signals；With the acoustic signals frequency and pulse period number that measure, number is set
Character signal generator makes digital signal generator generate burst letter identical with the acoustic signals frequency and pulse period number
Number；
E.burst signal inputs transmitting transducer after high-voltage amplifier improves the amplitude of signal, and transmitting transducer will be high
The burst signal of pressure amplifier processing is sent to sounding instrument probe after being converted to echo-signal；Echo-signal is by echo depth sounder
It is handled；
F. sounding instrument depth indicating value is read, which is compared with depth true value, calculates the depth measurement error of indication.
On the basis of above technical scheme, it is preferred that further include sounding instrument blind area detecting step, deep instrument blind area detection is
After reading sounding instrument depth indicating value, the signal Time delay of digital signal generator is constantly reduced, until sounding instrument can not
Display depth indicating value, the minimum-depth that sounding instrument is shown are sounding instrument blind area.
On the basis of above technical scheme, it is preferred that further include depth measurement error of indication amendment step, the depth measurement error of indication
Amendment step is carried out after calculating the depth measurement error of indication.
It is further preferred that the depth measurement error of indication amendment step, is to close digital signal generator and sounding instrument；It will
Receive energy converter and transmitting transducer and sounding instrument probe separation；Then the working face and transmitting transducer work of energy converter will be received
It is fitted closely after making face daubing coupling agent；Second analog input channel of the output end and digital oscilloscope that receive energy converter is connected
It connects；The output end of digital signal generator is defeated with the second analog input channel of digital oscilloscope and high-voltage amplifier respectively
Enter end connection；The input terminal of the output end of high-voltage amplifier and transmitting transducer is connected；Later on digital signal generator,
Digital signal generator is set to generate pumping signal；It is opposite that the second analog input channel of digital oscilloscope is read by digital oscilloscope
In the delay of the first analog input channel；It is propagation distance by the delay inverse measured, and in the sounding instrument depth error of indication
The propagation distance is subtracted, the revised error of indication is obtained.
Still more preferably, the pumping signal with frequency and pulse period number burst signal it is identical.
On the basis of above technical scheme, it is preferred that the couplant is tackifying resin or clay.
On the basis of above technical scheme, it is preferred that the velocity of sound of sounding instrument probe transmitting acoustic signals is
1500m/s。
On the basis of above technical scheme, it is preferred that the depth measurement error of indication calculation formula isIts
Middle Δ hiFor the depth measurement error of indication, h0For depth true value,For the indicating value average value of same depth.
A kind of echo depth sounder based on sonic transducer provided by the invention simulates calibration method, compared with the existing technology,
It has the advantages that
(1) principle of the invention according to echo depth sounder, with reception energy converter, transmitting transducer and digital signal generator
Sound echo is simulated, realizes the simulation calibrating of depth；Sound transducing, which rises, participates in verification process and checkout procedure, and it is deep that simulation can be improved
Spend the reliability of verification process；
(2) channel delay of digital oscilloscope is calculated, the depth measurement error of indication is modified, improve the standard of measurement
True property；
(3) present invention does not depend on special equipment, is not limited by lab space scale, and any depth theoretically may be implemented
The calibrating of degree and the simulation calibrating of sounding instrument blind area, applied widely, verification result is reliable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that a kind of equipment for the verification process that the echo depth sounder based on sonic transducer simulates calibration method of the present invention connects
Line chart；
Fig. 2 is setting for the error correction process that a kind of echo depth sounder based on sonic transducer of the present invention simulates calibration method
Standby wiring diagram.
Specific embodiment
Below in conjunction with embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only some embodiments of the invention, rather than whole embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
As shown in Figure 1, the echo depth sounder that the present invention provides a kind of based on sonic transducer simulates calibration method, including with
Lower step:
A. the work for using couplant and sounding instrument to pop one's head in respectively the working face for receiving energy converter and transmitting transducer working face
It is fitted closely together as face, sounding instrument is popped one's head in and is connect with sounding instrument；
B. the analog input channel of the output end and digital oscilloscope that receive energy converter is connected, by the touching of digital oscilloscope
The external trigger port for sending out output port and digital signal generator connects；The output port of digital signal generator is pressed with height
The input terminal connection of big device, the output end of high-voltage amplifier and the input terminal of transmitting transducer connect；
C. setting simulation calibrating depth and the velocity of sound of sound wave is simulated, calculating simulation acoustic transit time, and when by the propagation
Between be set as the signal Time delay of digital signal generator；
D. sounding instrument, sounding instrument probe transmitting acoustic signals, after reception energy converter receives the acoustic signals, by showing are opened
Wave device measures the frequency and pulse period number of the acoustic signals；With the acoustic signals frequency and pulse period number that measure, number is set
Character signal generator makes digital signal generator generate burst letter identical with the acoustic signals frequency and pulse period number
Number；
E.burst signal inputs transmitting transducer after high-voltage amplifier improves the amplitude of signal, and transmitting transducer will be high
The burst signal of pressure amplifier processing is sent to sounding instrument probe after being converted to reflection signal；Signal is reflected by echo depth sounder
It is handled；
F. sounding instrument depth indicating value is read, which is compared with depth true value, calculates the depth measurement error of indication.
The present invention is to simulate the sound wave that sounding instrument issues by receiving energy converter, digital signal generator and transmitting transducer
Echo sends back to sounding instrument probe after being delayed, carries out the analog detection of different depth.The output end of energy converter is received in step B
The analog input channel of any digital oscilloscope is accessed, effect is equivalent.
Due to the burst signal that digital signal generator issues, emitted energy converter is converted to echo acoustical signal, and there are one
Fixed delay, therefore need to be modified depth measurement indicating value and the depth measurement error of indication, depth measurement error of indication amendment step is to calculate
It is carried out after the depth measurement error of indication.
As shown in Fig. 2, depth measurement error of indication amendment step, is to close digital signal generator and sounding instrument；Reception is changed
It can device and transmitting transducer and sounding instrument probe separation；Then the working face for receiving energy converter and transmitting transducer working face are applied
It is fitted closely after smearing couplant；Second analog input channel of the output end and digital oscilloscope that receive energy converter is connected；It will
The output end of digital signal generator respectively with the second analog input channel of digital oscilloscope and the input terminal of high-voltage amplifier
Connection；The input terminal of the output end of high-voltage amplifier and transmitting transducer is connected；Later on digital signal generator makes to count
Character signal generator generates pumping signal；The second analog input channel of digital oscilloscope is read relative to the by digital oscilloscope
The delay of one analog input channel；It is propagation distance by the delay inverse measured, and is subtracted in the sounding instrument depth error of indication
The propagation distance obtains the revised error of indication.For guarantee measurement result reliability, preferably by pumping signal and frequency
It is identical with pulse period number burst signal.
A kind of echo depth sounder simulation calibration method based on sonic transducer of the present invention further includes sounding instrument blind area detection step
Suddenly, deep instrument blind area detection is that the signal Time delay of digital signal generator constantly contracts after reading sounding instrument depth indicating value
It is small, until sounding instrument can not display depth indicating value, the minimum-depth that sounding instrument show be sounding instrument blind area.
Couplant used in the present invention is tackifying resin or clay.The velocity of sound of sounding instrument probe transmitting acoustic signals is excellent
It is selected as 1500m/s.
Depth measurement error of indication calculation formula isWherein Δ hiFor the depth measurement error of indication, h0For depth true value,For the indicating value average value of same depth.
Simulation calibrating is carried out with the HY1500 type sounding instrument of marine technology Co., Ltd, Wuxi City Hai Yingjia section below,
The velocity of sound of equipment is set as 1500m/s, be set separately simulation calibrating depth be 2m, 5m, 10m, 15m, 20m, 25m, 30m, 35m,
40m, 45m and 50m successively examine and determine each depth, and each Simulation of depth is examined and determine 5 times, and verification result is as follows:
It can be found that the error of indication all falls in total accuracy of sounding ± (the 0.02m+0.1% calibrating depth of HY1500 type sounding instrument
Degree) in the range of.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of echo depth sounder based on sonic transducer simulates calibration method, it is characterised in that: the following steps are included:
A. the working face for using couplant and sounding instrument to pop one's head in respectively the working face for receiving energy converter and transmitting transducer working face
It fits closely together, sounding instrument is popped one's head in and is connect with sounding instrument；
B. the analog input channel of the output end and digital oscilloscope that receive energy converter is connected, the triggering of digital oscilloscope is defeated
The connection of the external trigger port of exit port and digital signal generator；By the output port and high-voltage amplifier of digital signal generator
Input terminal connection, the input terminal of the output end of high-voltage amplifier and transmitting transducer connects；
C. the velocity of sound of setting simulation calibrating depth and simulation sound wave, calculating simulation acoustic transit time, and the propagation time is set
It is set to the signal Time delay of digital signal generator；
D. sounding instrument is opened, sounding instrument probe transmitting acoustic signals pass through oscillograph after reception energy converter receives the acoustic signals
Measure the frequency and pulse period number of the acoustic signals；With acoustic signals frequency and pulse period number the setting number letter measured
Number generator makes digital signal generator generate burst signal identical with the acoustic signals frequency and pulse period number；
E.burst signal inputs transmitting transducer after high-voltage amplifier improves the amplitude of signal, and transmitting transducer presses height
The burst signal of big device processing is sent to sounding instrument probe after being converted to echo-signal；Echo-signal is carried out by echo depth sounder
Processing；
F. sounding instrument depth indicating value is read, which is compared with depth true value, calculates the depth measurement error of indication.
2. a kind of echo depth sounder based on sonic transducer as described in claim 1 simulates calibration method, it is characterised in that: also
Including sounding instrument blind area detecting step, deep instrument blind area detection is after reading sounding instrument depth indicating value, by digital signal generator
Signal Time delay constantly reduce, until sounding instrument can not display depth indicating value, the minimum-depth that sounding instrument show be depth measurement
Instrument blind area.
3. a kind of echo depth sounder based on sonic transducer as described in claim 1 simulates calibration method, it is characterised in that: also
Including depth measurement error of indication amendment step, depth measurement error of indication amendment step is carried out after calculating the depth measurement error of indication.
4. a kind of echo depth sounder based on sonic transducer as claimed in claim 3 simulates calibration method, it is characterised in that: institute
Depth measurement error of indication amendment step is stated, is to close digital signal generator and sounding instrument；Energy converter and transmitting transducer will be received
With sounding instrument probe separation；Then it will closely be pasted after the working face for receiving energy converter and transmitting transducer working face daubing coupling agent
It closes；Second analog input channel of the output end and digital oscilloscope that receive energy converter is connected；By digital signal generator
Output end is connect with the input terminal of the second analog input channel of digital oscilloscope and high-voltage amplifier respectively；By high-voltage amplifier
Output end and transmitting transducer input terminal connect；Later on digital signal generator, generates digital signal generator
Pumping signal；The second analog input channel of digital oscilloscope is read relative to the first analog input channel by digital oscilloscope
Delay；It is propagation distance by the delay inverse measured, and subtracts the propagation distance in the sounding instrument depth error of indication, is repaired
The error of indication after just.
5. a kind of echo depth sounder based on sonic transducer as claimed in claim 4 simulates calibration method, it is characterised in that: institute
Frequency and the pulse period number for stating pumping signal are identical as burst signal.
6. a kind of echo depth sounder based on sonic transducer as described in claim 1 simulates calibration method, it is characterised in that: institute
Stating couplant is tackifying resin or clay.
7. a kind of echo depth sounder based on sonic transducer as described in claim 1 simulates calibration method, it is characterised in that: institute
The velocity of sound for stating sounding instrument probe transmitting acoustic signals is 1500m/s.
8. a kind of echo depth sounder based on sonic transducer as described in claim 1 simulates calibration method, it is characterised in that: institute
Stating depth measurement error of indication calculation formula isWherein Δ hiFor the depth measurement error of indication, h0For depth true value,It is same
The indicating value average value of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317289.2A CN110045355A (en) | 2019-04-19 | 2019-04-19 | A kind of echo depth sounder simulation calibration method based on sonic transducer |
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| CN201910317289.2A CN110045355A (en) | 2019-04-19 | 2019-04-19 | A kind of echo depth sounder simulation calibration method based on sonic transducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111982156A (en) * | 2020-08-31 | 2020-11-24 | 中国计量科学研究院 | Underwater echo simulation technology-based single-beam depth finder calibration method |
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Application publication date: 20190723 |