CN108489514A - The method that unilateral transverse direction earth magnetism former-wound coil measures induced field Ziy - Google Patents
The method that unilateral transverse direction earth magnetism former-wound coil measures induced field Ziy Download PDFInfo
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- CN108489514A CN108489514A CN201810224375.4A CN201810224375A CN108489514A CN 108489514 A CN108489514 A CN 108489514A CN 201810224375 A CN201810224375 A CN 201810224375A CN 108489514 A CN108489514 A CN 108489514A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/04—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by terrestrial means
- G01C21/08—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by terrestrial means involving use of the magnetic field of the earth
Abstract
The present invention relates to a kind of methods that unilateral lateral earth magnetism former-wound coil measures induced field Ziy, unilateral transverse direction earth magnetism former-wound coil is laid on the solid size head of the stations XC, array of magnetic sensors is laid on the stations XC canonical measure depth underwater, computer controls high-precision earth magnetism analog power to unilateral lateral earth magnetism former-wound coil energization or no power, magnetic field value in the case of computer acquisition array of magnetic sensors is various, when earth magnetic field is calculated along naval vessel transversely acting, the transvercal induction magnetic field Ziy of canonical measure depth naval vessel induction generation.Unilateral earth magnetism former-wound coil is laid by solid size head, realize simulation geomagnetic field measuring transvercal induction magnetic field Ziy, simulation geomagnetic field measuring Ziy engineer applications are breached in the limitation of dicode head, new thinking is provided to the construction of the later stations XC, especially for current solid size head or without the upgrading that harbour XC stands, the cost effectiveness of engineering construction is greatly improved.
Description
Technical field
The present invention relates to a kind of magnetic signal measuring technology, more particularly to a kind of unilateral lateral earth magnetism former-wound coil measures laterally
The method of induced field Ziy.
Background technology
Under steel naval vessel acts in earth magnetic field, induced field, transvercal induction magnetic field Ziy just will produce（Earth magnetic field edge
When naval vessel transversely acting, the magnetic field of naval vessel induction generation）It is the magnetic field that naval vessel must be obtained when XC stands and carries out magnetic handle
Component, the transvercal induction magnetic field current measurement methods of Ziy have following two：
1) tuning mensuration --- belong to traditional method, do not lay former-wound coil, is obtained by E-W tuning measurements；
2) earth magnetism simulation --- the technology generally used at present, by being simulated in the left and right symmetrical earth magnetism of dicode head XC station layings
Coil, simulation generates uniform earth's magnetic field, and then is decomposed by measuring, and transvercal induction magnetic field Ziy is finally calculated.
As shown in Figure 1 simulation geomagnetic field measuring naval vessel transvercal induction magnetic field Ziy schematic diagrames, on the outside of the left and right side of a ship in naval vessel around
Earth magnetism former-wound coil by the earth's magnetic field for the simulation generation simulation that is powered to earth magnetism former-wound coil, and then measures and obtains transvercal induction
Magnetic field Ziy.
By simulating geomagnetic field measuring transvercal induction magnetic field Ziy, is measured instead of traditional E-W tunings, not only reduce XC
Operation labor intensity, and XC duty cycles are shortened, improve the XC supportabilitys at the stations XC.
Since bilateral transverse direction earth magnetism former-wound coil field homogeneity area is larger, geomagnetic field measuring transvercal induction magnetic field Ziy is simulated
It is mainly used in the station dicode head XC, is illustrated in figure 2 the stations XC overall structure figure, lateral earth magnetism former-wound coil is laid in harbour frame
Or on column, the measurement of induced field Ziy can be completed in any course in dicode head, and the technology has been applied to dicode head at present
The stations XC, and passed through ship trial verification, using effect is preferable.
The prior art is by laying left and right earth magnetism former-wound coil at the stations dicode head XC, certain uniform magnetic being generated through being powered
Field action obtains Ziy, meets requirement of engineering on naval vessel, being equivalent to earth's magnetic field.Advantage is can not have to tuning, but for list
The station of harbour is only capable of the coil of laying side, can not generate uniform magnetic field, and there has been no realize using unilateral side laterally in native land
Magnetic former-wound coil measures induced field Ziy.
Since solid size head can not lay symmetrical earth magnetism former-wound coil, in limited laying dimensional space, magnetic
The homogeneity range of field is smaller, and the induced field Ziy effects obtained using art methods measurement are poor, cannot be satisfied engineering use
It is required that being badly in need of the new method that research measures Ziy for unilateral earth magnetism former-wound coil.
Invention content
The present invention be directed to present naval vessel transvercal induction magnetic field Ziy test methods not to be suitable for asking for the solid size head class stations XC
Topic, it is proposed that a kind of method that unilateral lateral earth magnetism former-wound coil measures induced field Ziy, by laying unilateral lateral earth magnetism mould
Quasi- coil, realizes the induced field Ziy measurement methods for meeting requirement of engineering in solid size head, provides the construction at the stations later XC new
Thinking realizing simulation geomagnetic field measuring induction especially for current solid size head or the upgrading without the stations harbour XC
While the Ziy functions of magnetic field, the cost effectiveness of engineering construction is improved.
The technical scheme is that：A kind of method that unilateral lateral earth magnetism former-wound coil measures induced field Ziy, specifically
Include the following steps：
1）Test system building：Including unilateral lateral earth magnetism former-wound coil, high-precision earth magnetism analog power, array of magnetic sensors and
Computer, unilateral transverse direction earth magnetism former-wound coil are laid on the solid size head of the stations XC, array of magnetic sensors：It is laid on XC station canonical measures
Depth underwater, computer control high-precision earth magnetism analog power to unilateral lateral earth magnetism former-wound coil energization or no power, calculate
Magnetic field value in the case of machine acquisition array of magnetic sensors is various, is calculated canonical measure depth earth magnetic field along naval vessel transversely acting
When, the transvercal induction magnetic field Ziy of naval vessel induction generation；
2）The symmetrical measurement method in naval vessel：
2.1）Before naval vessel is stood into XC, and in the case of coil is cold, Magnetic Sensor measured value H is read0Left, H0It is right；
2.2）Before naval vessel is stood into XC and in the case that coil is powered, Magnetic Sensor measured value H is read1Left, H1It is right；
2.3）After naval vessel is stood into XC, and in the case of coil is cold, Magnetic Sensor measured value H is read2Left, H2It is right；
2.4）After naval vessel is stood into XC and in the case that coil is powered, Magnetic Sensor measured value H is read3Left, H3It is right；
2.5）Calculate separately to obtain the transvercal induction magnetic field that single coil generates under the left and right side of a ship in naval vessel：
The left sides Ziy=（H3A left side-H2It is left）（H1A left side-H0It is left）；
The right sides Ziy=（H3The right side-H2It is right）（H1The right side-H0It is right）.
2.6）Transvercal induction magnetic field is equal under the left and right side of a ship in naval vessel under uniform earth's magnetic field, is calculated：
ZiyL1=ZiyR1=Ziy left side+Ziy are right；
3）The left-right asymmetry measurement method in naval vessel：
3.1）Measure first naval vessel berth the courses N when the lower naval vessel of coil effect standard depth induced field, by step 2.1）
~2.5）The courses N naval vessel transvercal induction magnetic field under the left and right side of a ship in standard depth naval vessel is obtained by Magnetic Sensor measurement：
Ziy is leftn=（H3It is leftn- H2It is leftn）（H1It is leftn- H0It is leftn）；
Ziy is rightn=（H3It is rightn- H2It is rightn）（H1It is rightn- H0It is rightn）；
3.2）Naval vessel 180 degree is set to turn course, by step 2.1）~2.5）Measure naval vessel berth the courses S when the lower naval vessel of coil effect
The transvercal induction magnetic field under the left and right side of a ship in standard depth naval vessel：
Ziy is lefts=（H3It is lefts- H2It is lefts）（H1It is lefts- H0It is lefts）；
Ziy is rights=（H3It is rights- H2It is rights）（H1It is rights- H0It is rights）；
3.3）The naval vessel transvercal induction magnetic field under uniform earth's magnetic field is calculated：
Transvercal induction magnetic field Ziy under naval vessel larboardL2=Ziy is leftn+ Ziy is lefts；
Transvercal induction magnetic field Ziy under naval vessel starboardR2=Ziy is rightn+ Ziy is rights。
The beneficial effects of the present invention are：The method that unilateral lateral earth magnetism former-wound coil of the invention measures induced field Ziy,
Unilateral earth magnetism former-wound coil is laid by solid size head, realizes simulation geomagnetic field measuring transvercal induction magnetic field Ziy, breaches simulation ground
Magnetic-field measurement Ziy engineer applications realize in the limitation of dicode head and lay unilateral earth magnetism former-wound coil measurement cross in solid size head
To the purpose of induced field Ziy；New thinking is provided to the construction of the later stations XC, especially for current solid size head or without code
The upgrading at the stations head XC, greatly improves the cost effectiveness of engineering construction.Unilateral lateral earth magnetism former-wound coil is laid in solid size head,
In the case where homogeneity range is smaller, remains to the transvercal induction magnetic field Ziy that measurement obtains meeting engineer application and have great importance.
Description of the drawings
Fig. 1 is simulation geomagnetic field measuring naval vessel transvercal induction magnetic field Ziy schematic diagrames；
Fig. 2 is the stations XC overall structure figure；
Fig. 3 is composition frame chart of the present invention；
Fig. 4 is the symmetrical naval vessel instrumentation plan of the present invention；
Fig. 5 is the left-right asymmetry naval vessel instrumentation plan of the present invention；
Fig. 6 is induced field Ziy simulation result diagrams of the present invention；
Fig. 7 is physical model induced field Ziy test result figures of the present invention.
Specific implementation mode
The solid size connector analog geomagnetic field measuring transvercal induction magnetic field Ziy block diagram of system is as shown in figure 3, including unilateral lateral
Earth magnetism former-wound coil, high-precision earth magnetism analog power, array of magnetic sensors and control computer.
Unilateral transverse direction earth magnetism former-wound coil：It is laid on solid size head, for generating laterally simulation earth's magnetic field；High-precision earth magnetism
Analog power：As high-precision constant-current source is stablized, for lateral earth magnetism former-wound coil power supply；Array of magnetic sensors：It is laid on XC
Station yard head bottom measures the canonical measure depth under the different conditions such as energization, no power（Away from naval vessel underwater standard depth）
Magnetic field value；Control computer：It controls high-precision earth magnetism analog power to be powered to coil, acquires Magnetic Sensor magnetic field value, it is final logical
It crosses calculating analysis and obtains canonical measure depth transvercal induction magnetic field Ziy.
By taking the solid size head of the directions N-S as an example, according to the bilateral symmetry on naval vessel, simulation geomagnetic field measuring transvercal induction magnetic field
The operation principle of Ziy is divided into following two situations：
One, it is directed to symmetrical naval vessel
For symmetrical naval vessel, single sided coil simulate geomagnetic field measuring transvercal induction magnetic field Ziy schematic diagrames as shown in figure 4,
In Fig. 4（1）Earth magnetism artificial line is symmetrically laid at left and right sides of naval vessel along naval vessel longitudinal direction for dicode head instrumentation plan
Circle forms opposite naval vessel or so transverse magnetic field, and it is a that underwater Magnetic Sensor, which measures the magnetic field value that coil generates at tested port,
The magnetic field value that coil generates at tested ship starboard is b；To incite somebody to action（1）Two pacing amounts are decomposed, by Fig. 4（2）Only left side is applied with position
If earth magnetism former-wound coil is powered, it is tested the magnetic field value a1 that coil generates at port, is tested the magnetic field that coil generates at ship starboard
Value is b1；By in Fig. 4（3）Only earth magnetism former-wound coil is laid in right side with position, is tested the magnetic field value that coil generates at port and is
A2, it is b2 to be tested the magnetic field value that coil generates at ship starboard；Left and right is superimposed after measuring respectively, and in Fig. 4（1）Measure the result is that
Consistent, then there is following formula：A=a1+a2, b=b1+b2, and because naval vessel and laying earth magnetism former-wound coil are symmetrical,
So a=b, a, b, a1, a2, b1, b2 are that the left and right side of a ship lower coil in naval vessel generates magnetic field value in formula.
Assuming that naval vessel is docked in earth magnetism former-wound coil symmetrical centre（Harbour symmetrical centre）, pair in magnetic field is generated according to coil
The symmetry of title property and naval vessel, then：A1=b2, a2=b1 arrange formula and obtain：A=a1+ b1, b=a2+b2, a=b.
Since naval vessel induced field and externally-applied magnetic field are linear relationship i.e. H=k*h（Wherein H is naval vessel induced field, and h is outer
Magnetic field such as earth magnetic field or coil is added to simulate the magnetic field generated, k is proportionality coefficient）, since naval vessel is symmetrical, proportionality coefficient k
A left side=k is right, i.e., the magnetic field Ziy incuded on uniform earth's magnetic field bottom left, starboard naval vessel is identical, i.e. the equal Ziy in the uniform earth's magnetic field in left and rightL=
ZiyR.As shown in Figure 4, in canonical measure depth, naval vessel induced field A=K*a that Magnetic Sensor measurement obtains, B=K*b, A1=
K*a1, B1=K*B1, A2=K*a2, B2=K*b2；And then arrange and can obtain A=A1+ B1, B=A2+B2, A=B, A, B in formula,
A1, A2, B1, B2 are to feel under the left and right side of a ship in naval vessel that canonical measure depth Magnetic Sensor measurement obtains under certain external magnetic field
Answer magnetic field value.
By being analyzed above it is found that the uniform earth's magnetic field of simulation, which can be realized, by laying single coil measurement obtains induction magnetic
, alternative left and right symmetrical laying coil obtains naval vessel induced field A1, B1, so that it may calculate by single coil measurement
To transvercal induction magnetic field A, the B of naval vessel under uniform earth's magnetic field.
After single coil substitution symmetric coil laying, since the magnetic field that left and right side of a ship lower coil generates is asymmetric, then individually
The lower left and right side of a ship induced field in naval vessel of coil effect also differs, and Magnetic Sensor measures naval vessel in standard depth transvercal induction magnetic field
The step of it is as follows：
1）Before naval vessel is stood into XC（Without naval vessel）, and in the case of coil is cold, read Magnetic Sensor measured value（Background magnetic
）H0Left, H0It is right；
2）Before naval vessel is stood into XC（Without naval vessel）, and in the case of coil energization, read Magnetic Sensor measured value（Background magnetic field+
Coil energization magnetic field）H1Left, H1It is right；
3）After naval vessel is stood into XC（There is naval vessel）, and in the case of coil is cold, read Magnetic Sensor measured value（Background magnetic field
+ ship's magnetism）H2Left, H2It is right；
4）After naval vessel is stood into XC（There is naval vessel）, and in the case of coil energization, read Magnetic Sensor measured value（Background magnetic field+
Ship's magnetism+coil energization magnetic field+naval vessel induced field）H3A left side 1, H3The right side 1；
5）Calculate separately to obtain the transvercal induction magnetic field that single coil generates under the left and right side of a ship in naval vessel：
The left sides Ziy=（H3A left side-H2It is left）（H1A left side-H0It is left）；
The right sides Ziy=（H3The right side-H2It is right）（H1The right side-H0It is right）.
6）The naval vessel transvercal induction magnetic field under uniform earth's magnetic field finally is calculated（It is equal to symmetrical laying coil, mould
Intend the transvercal induction magnetic field that uniform earth's magnetic field obtains）：
ZiyL1=ZiyR1=Ziy left side+Ziy are right.
In summary, simulation earth's magnetic field is generated by unilateral lateral geomagnetic induction coil, is measured and is converted respectively with Magnetic Sensor
Standard depth transvercal induction magnetic field under to the left and right side of a ship in naval vessel, by left and right side of a ship superposition calculation, final any boat in solid size head
To the purpose for simulating uniform geomagnetic field measuring naval vessel transvercal induction magnetic field Ziy can be realized.
Two, for left-right asymmetry naval vessel
The linear relationship expression formula H=k*h for saving naval vessel induced field and externally-applied magnetic field according to upper one, if naval vessel is left-right asymmetry,
The left sides proportionality coefficient k ≠ k is right, obtains：A1 ≠ B2, A2 ≠ B1, A ≠ B, i.e., the magnetic incuded on uniform earth's magnetic field bottom left, starboard naval vessel
Field Ziy is also differed：ZiyL≠ZiyR,
In the case, it for unilateral lateral earth magnetism former-wound coil, can be solved by way of tuning energization, it is left as shown in Figure 5
Right asymmetry naval vessel measuring principle schematic diagram, in Fig. 5（1）For dicode head（Symmetrical laying earth magnetism former-wound coil）Instrumentation plan.
In N-S into harbour, it is assumed that naval vessel is identical with respect to the position of earth magnetism former-wound coil, and earth magnetism former-wound coil is logical just when the naval vessel courses N
Electricity generates the earth's magnetic field of right direction, in Fig. 5（2）It is shown；Coil leads to negative electricity when the naval vessel courses S, generates the ground of left direction
Magnetic field, in Fig. 5（3）It is shown, respectively by being scaled to standard depth characteristic point, it can be obtained transverse direction eventually by superposition calculation
Induced field Ziy.
For the asymmetric naval vessel of self structure, Magnetic Sensor measures naval vessel the standard depth transvercal induction magnetic field the step of
It is as follows：
1）Measure first naval vessel berth the courses N when the lower naval vessel of coil effect standard depth induced field, due to being still single
The magnetic field of coil, generation is still asymmetric, and measuring process obtains the courses N with " symmetrical naval vessel " by Magnetic Sensor measurement
Naval vessel transvercal induction magnetic field under the left and right side of a ship in standard depth naval vessel：
Ziy is leftn=（H3It is leftn- H2It is leftn）（H1It is leftn- H0It is leftn）；
Ziy is rightn=（H3It is rightn- H2It is rightn）（H1It is rightn- H0It is rightn）.
2）Next makes naval vessel 180 degree turn course, similarly measure naval vessel berth the courses S when the lower naval vessel of coil effect in standard
Transvercal induction magnetic field under the left and right side of a ship in depth naval vessel：
Ziy is lefts=（H3It is lefts- H2It is lefts）（H1It is lefts- H0It is lefts）；
Ziy is rights=（H3It is rights- H2It is rights）（H1It is rights- H0It is rights）.
6）The naval vessel transvercal induction magnetic field under uniform earth's magnetic field finally is calculated（It is equal to symmetrical laying coil, mould
Intend the transvercal induction magnetic field that uniform earth's magnetic field obtains）：
Transvercal induction magnetic field Ziy under naval vessel larboardL2=Ziy is leftn+ Ziy is lefts；
Transvercal induction magnetic field Ziy under naval vessel starboardR2=Ziy is rightn+ Ziy is rights；
By the method, tuning energization measures in N-S solid size heads, may be implemented to asymmetric naval vessel transvercal induction magnetic field Ziy's
It measures, especially for the N-S for being usually used in magnetic processing to solid size head, achieves that in the courses N-S and disappear to the head on naval vessel.
Three, simulation calculation and model test
By modeling and simulating, the effect that certain type naval vessel transvercal induction magnetic field Ziy is measured using unilateral earth magnetism former-wound coil is shown in Fig. 6,
It will be appreciated from fig. 6 that the induced field obtained using unilateral lateral earth magnetism former-wound coil measurement is compared under uniform earth's magnetic field, shape is kissed
It closes, amplitude is suitable, and the precision of measurement is higher.
The effect for measuring physical model transvercal induction magnetic field Ziy than unilateral lateral earth magnetism former-wound coil using contracting is shown in Fig. 7, object
The result for managing model test is consistent with simulation result, the induced field that is obtained using lateral earth magnetism former-wound coil measurement and equably
It is compared under magnetic field, shape is coincide, and amplitude is suitable, and demonstrate that unilateral lateral earth magnetism former-wound coil herein measures Ziy methods can
Row can meet requirement of engineering.
Claims (1)
1. a kind of method that unilateral lateral earth magnetism former-wound coil measures induced field Ziy, which is characterized in that specifically include following step
Suddenly：
1）Test system building：Including unilateral lateral earth magnetism former-wound coil, high-precision earth magnetism analog power, array of magnetic sensors and
Computer, unilateral transverse direction earth magnetism former-wound coil are laid on the solid size head of the stations XC, and array of magnetic sensors is laid on XC station canonical measures
Depth underwater, computer control high-precision earth magnetism analog power to unilateral lateral earth magnetism former-wound coil energization or no power, calculate
Magnetic field value in the case of machine acquisition array of magnetic sensors is various, when earth magnetic field is calculated along naval vessel transversely acting, canonical measure
The transvercal induction magnetic field Ziy that the induction of depth naval vessel generates；
2）The symmetrical measurement method in naval vessel：
2.1）Before naval vessel is stood into XC, and in the case of coil is cold, Magnetic Sensor measured value H is read0Left, H0It is right；
2.2）Before naval vessel is stood into XC and in the case that coil is powered, Magnetic Sensor measured value H is read1Left, H1It is right；
2.3）After naval vessel is stood into XC, and in the case of coil is cold, Magnetic Sensor measured value H is read2Left, H2It is right；
2.4）After naval vessel is stood into XC and in the case that coil is powered, Magnetic Sensor measured value H is read3Left, H3It is right；
2.5）Calculate separately to obtain the transvercal induction magnetic field that single coil generates under the left and right side of a ship in naval vessel：
The left sides Ziy=（H3A left side-H2It is left）（H1A left side-H0It is left）；
The right sides Ziy=（H3The right side-H2It is right）（H1The right side-H0It is right）；
2.6）Transvercal induction magnetic field is equal under the left and right side of a ship in naval vessel under uniform earth's magnetic field, is calculated：
ZiyL1=ZiyR1=Ziy left side+Ziy are right；
3）The left-right asymmetry measurement method in naval vessel：
3.1）Measure first naval vessel berth the courses N when the lower naval vessel of coil effect standard depth induced field, by step 2.1）
~2.5）The courses N naval vessel transvercal induction magnetic field under the left and right side of a ship in standard depth naval vessel is obtained by Magnetic Sensor measurement：
Ziy is leftn=（H3It is leftn- H2It is leftn）（H1It is leftn- H0It is leftn）；
Ziy is rightn=（H3It is rightn- H2It is rightn）（H1It is rightn- H0It is rightn）；
3.2）Naval vessel 180 degree is set to turn course, by step 2.1）~2.5）Measure naval vessel berth the courses S when the lower naval vessel of coil effect
The transvercal induction magnetic field under the left and right side of a ship in standard depth naval vessel：
Ziy is lefts=（H3It is lefts- H2It is lefts）（H1It is lefts- H0It is lefts）；
Ziy is rights=（H3It is rights- H2It is rights）（H1It is rights- H0It is rights）；
3.3）The naval vessel transvercal induction magnetic field under uniform earth's magnetic field is calculated：
Transvercal induction magnetic field Ziy under naval vessel larboardL2=Ziy is leftn+ Ziy is lefts；
Transvercal induction magnetic field Ziy under naval vessel starboardR2=Ziy is rightn+ Ziy is rights。
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| CN109164401A (en) * | 2018-11-13 | 2019-01-08 | 中国船舶重工集团公司第七0四研究所 | A method of measurement induced magnetic field Zix |
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