CN202707037U - Azimuth angle measurement instrument - Google Patents
Azimuth angle measurement instrument Download PDFInfo
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- CN202707037U CN202707037U CN 201220305218 CN201220305218U CN202707037U CN 202707037 U CN202707037 U CN 202707037U CN 201220305218 CN201220305218 CN 201220305218 CN 201220305218 U CN201220305218 U CN 201220305218U CN 202707037 U CN202707037 U CN 202707037U
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- azimuth angle
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- 238000005259 measurement Methods 0.000 title abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 230000001133 acceleration Effects 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims description 18
- 230000005484 gravity Effects 0.000 claims description 17
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an azimuth angle measurement instrument which comprises a measurement device and an exploring tube for encapsulating of the measurement device. The measurement device comprises two accelerometers, a dynamical tuned gyroscope, a driving machine, a measurement circuit and a processor. The driving machine is connected with the dynamical tuned gyroscope and drives the dynamical tuned gyroscope to rotate. The measurement circuit is connected with the dynamical tuned gyroscope and used for obtaining of a horizontal component and a vertical component of the angular speed of the rotation of the earth at the position of a test point, wherein the horizontal component and the vertical component of the angular speed of the rotation of the earth are output by the dynamical tuned gyroscope. The processor is in connection with the two accelerometers, the driving machine and the measurement circuit and used for calculating of the azimuth angle based on the angular speed of the rotation of the earth, the horizontal component of the angular speed of the rotation of the earth and the vertical component of the angular speed of the rotation of the earth at the position of the test point, the gravitational acceleration, a horizontal component of the gravitational acceleration and a vertical component of the gravitational acceleration measured by the two accelerometers, and a value of latitude at the position of the test point. The azimuth angle measurement instrument is used to measure the azimuth angle without depending on magnetic field intensity, and the problem that the azimuth angle of a drill hole cannot be measured accurately due to the affect of environment of an external magnetic field can be avoided.
Description
Technical Field
The utility model relates to a well drilling measurement field, more specifically say, relate to an azimuth measuring apparatu.
Background
In the drilling work, the azimuth angle of a drilling engineering hole (called a drilling hole for short) is an important parameter, the azimuth angle of the drilling hole refers to the included angle between the projection of the axis of the drilling hole on the horizontal plane and the geographical north, and the track of the drilling hole can be judged by measuring the parameter.
The existing method for measuring the azimuth angle of the drill hole adopts a magnetic field measuring method, namely, a magnetoresistive sensor is used for measuring the azimuth angle of the drill hole, but the method is greatly influenced by the environment of an external magnetic field and cannot accurately determine the azimuth angle of the drill hole.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an azimuth measuring apparatu to solve the problem that can not the accurate azimuth of confirming drilling that leads to because of the influence of external magnetic field.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an azimuth measuring instrument comprising: the device comprises a measuring device and a probe tube for packaging the measuring device; the measuring device includes:
a first accelerometer for acquiring a horizontal component of the gravitational acceleration at the test point;
a second accelerometer for acquiring a vertical component of the acceleration of gravity at the test point;
a dynamically adjusting top;
the driver is connected with the dynamic adjusting gyroscope and drives the dynamic adjusting gyroscope to rotate when receiving a control signal;
the measuring circuit is connected with the dynamic tuning gyroscope and used for acquiring the horizontal component and the vertical component of the rotational angular velocity of the earth at the testing point output by the dynamic tuning gyroscope;
and the processor is respectively connected with the first accelerometer, the second accelerometer, the driver and the measuring circuit, sends a control signal, and calculates an azimuth angle according to the earth rotation angular velocity at the test point, the horizontal component of the earth rotation angular velocity, the vertical component of the earth rotation angular velocity, the gravitational acceleration, the horizontal component and the vertical component of the gravitational acceleration, and the latitude value at the test point.
The azimuth measuring instrument preferably further includes:
and the power supply device is respectively connected with the dynamic tuning gyroscope and the processor and provides power required by the dynamic tuning gyroscope and the processor.
The azimuth measuring instrument preferably further includes:
and the memory is connected with the processor and used for storing the azimuth angle.
The azimuth measuring instrument preferably further includes:
and the display is connected with the processor and used for displaying the azimuth angle data.
Preferably, in the azimuth measuring instrument, the processor is a DSP processor.
According to the technical scheme, the azimuth angle measuring instrument measures the horizontal component and the vertical component of the earth rotation angular velocity through controlling and adjusting the gyroscope to rotate, calculates the horizontal component and the vertical component of the gravity accelerometer through the accelerometer, and calculates the azimuth angle according to the horizontal component of the earth rotation angular velocity, the vertical component of the earth rotation angular velocity, the gravity acceleration, the horizontal component and the vertical component of the gravity acceleration at the test point and the latitude value at the test point.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an azimuth measuring instrument according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another azimuth angle measuring instrument according to an embodiment of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein may, for example, be implemented in an order other than that illustrated herein.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an azimuth angle measuring device according to an embodiment of the present disclosure, including:
a measuring device 1 and a probe 2;
wherein, measuring device 1 includes: a first accelerometer 101, a second accelerometer 102, a gyroscopic gyroscope 103, a driver 104, a measurement circuit 105 and a processor 106;
the first accelerometer 101 is used for acquiring a horizontal component g of the gravity acceleration g at the test pointx；
The second accelerometer 102 is used for acquiring a vertical component g of the gravity acceleration g at the test pointy；
The first accelerometer 101 and the second accelerometer 102 are perpendicular to each other, and the sensitive axis of one of the gravity accelerometers (the first accelerometer 101 or the second accelerometer 102) is parallel to the axis of the probe.
The driver 104 is connected with the dynamic tuning gyroscope 103 and is used for driving the dynamic tuning gyroscope 103 to rotate when receiving the control signal;
the measuring circuit 105 is connected with the dynamic tuning gyroscope 103 and is used for acquiring a horizontal component omega of the rotational angular velocity omega of the earth at the test point output by the dynamic tuning gyroscopexAnd the vertical component omegay；
It should be noted that the gravitational acceleration g and the earth rotation angular velocity ω at the test point refer to a geographic coordinate system (n system, i.e., northeast earth coordinate system ox) at the test pointnynznThat is to say a north coordinate axis xnEast coordinate axis ynAnd a ground-oriented coordinate axis znForm a right-hand coordinate system, xnAxis and ynThe plane in which the earth is located is a horizontal plane) and the acceleration of gravity and the rotational angular velocity of the earth; horizontal component g of gravitational acceleration gxAnd a vertical component gyAnd the horizontal component ω of the rotational angular velocity ω of the earthxAnd the vertical component omegayIs the acceleration of gravity g andthe component of the rotational angular velocity ω of the earth in the probe coordinate system, specifically, the probe coordinate system oxbybzbIn zbThe axis being the axis of the probe, xbAxis, ybThe axis being perpendicular to the probe axis and in the same plane, xbAxis, ybAxis and zbThe axes forming a right-hand coordinate system, the horizontal component g of the gravitational acceleration gxAnd the horizontal component ω of the rotational angular velocity ω of the earthxMeans that the gravity acceleration g and the earth rotation angular velocity omega are x in a probe tube coordinate systembA component of the axis; vertical component g of gravitational acceleration gyAnd the vertical component omega of the rotational angular velocity omega of the earthyMeans that the gravity acceleration g and the earth rotation angular velocity omega are in a probe tube coordinate system ybA component of the axis;
specifically, each component of the earth rotation angular velocity ω in the geographic coordinate system in the probe coordinate system can be calculated by formula (1); calculating each component of the gravity acceleration g in the geographic coordinate system in the probe tube coordinate system through a formula (2);
wherein,
the horizontal component of the rotational angular velocity of the earth in a geographic coordinate system;
is the vertical component of the rotational angular velocity of the earth in a geographic coordinate system;
the latitude value at the test point can be input by a tester; omegaeThe rotation angular velocity of the earth is 15 degrees/h;
the transform matrix is a 3 x 3 matrix, which is a known quantity.
The processor 106 is respectively connected to the first accelerometer 101, the second accelerometer 102, the driver 104 and the measurement circuit 105, sends a control signal, and depends on the rotational angular velocity ω of the earth at the test point and the horizontal component ω of the rotational angular velocity ω of the earth at the test pointxVertical component ω of rotational angular velocity ω of the earthyAcceleration of gravity g, horizontal component g of acceleration of gravity gxAnd a vertical component gyAnd a latitude value at the test pointCalculating an azimuth angle; preferably, the processor 106 may be a DSP processor.
Specifically, according to the rotational angular velocity ω of the earth at the test point and the horizontal component ω of the rotational angular velocity ω of the earth at the test pointxVertical component ω of rotational angular velocity ω of the earthyAcceleration of gravity g, horizontal component g of acceleration of gravity gxAnd a vertical component gyAnd a latitude value at the test point
Calculating the pitch angle theta (x in the probe coordinate system)bThe angle between the axis (horizontal longitudinal axis) and the horizontal plane of the geographic coordinate system), the roll angle γ (longitudinal symmetry plane (x) of the probe coordinate systembAxis and zbPlane formed by axes) and longitudinal vertical plane (x)bAxis and znPlane of axes), north tool face angle phi (x in probe coordinate system)bThe included angle between the projection of the axis (horizontal longitudinal axis) on the horizontal plane of the geographic coordinate system and a geographic meridian (north axis) and a specific calculation formula is shown in formulas (3) - (5);
θ=arcsin(gx/g) （3）
γ=arcsin[gy/(g*cosθ)] （4）
according to the pitch angle theta, the roll angle gamma, the north tool face angle phi and the latitude value at the test point
The azimuth angle delta psi is calculated,
wherein epsilonx，εyWhich are the random drift amounts of two axes (for convenience, referred to herein as the x-axis and the y-axis) perpendicular to each other in the gyroscope.
The X-axis and the Y-axis are perpendicular to each other. One of the axes (X-axis or Y-axis) is parallel to the probe axis. The azimuth angle measuring instrument provided by the embodiment of the application has the advantages that the azimuth angle measurement does not depend on the magnetic field intensity, and only the current pitch angle theta, the roll angle gamma, the north tool face angle phi and the latitude value at the test point are measured through the probe tube
And the azimuth angle is calculated by the random drift of the gyroscope, so that the problem that the azimuth angle of the drilled hole cannot be accurately determined due to the influence of an external magnetic field environment is solved.
Another schematic structural diagram of an azimuth angle measuring instrument provided in the embodiment of the present application is shown in fig. 2, and on the basis of the azimuth angle measuring instrument shown in fig. 1, the azimuth angle measuring instrument further includes:
the power supply device 107 is connected with the dynamic tuning gyroscope 103 and the processor 106 and is used for providing power required by the dynamic tuning gyroscope and the processor;
and the memory 108 is connected with the processor 106 and is used for storing the azimuth angle calculated by the processor, so that a user can conveniently retrieve historical data.
And the display 109 is connected with the processor 106 and is used for displaying the azimuth angle calculated by the processor, and correspondingly, the probe 2 is provided with a window for the convenience of the user to check.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An azimuth measuring instrument, comprising: the device comprises a measuring device and a probe tube for packaging the measuring device; the measuring device includes:
a first accelerometer for acquiring a horizontal component of the gravitational acceleration at the test point;
a second accelerometer for acquiring a vertical component of the acceleration of gravity at the test point;
a dynamically adjusting top;
the driver is connected with the dynamic adjusting gyroscope and drives the dynamic adjusting gyroscope to rotate when receiving a control signal;
the measuring circuit is connected with the dynamic tuning gyroscope and used for acquiring the horizontal component and the vertical component of the rotational angular velocity of the earth at the testing point output by the dynamic tuning gyroscope;
and the processor is respectively connected with the first accelerometer, the second accelerometer, the driver and the measuring circuit, sends a control signal, and calculates an azimuth angle according to the earth rotation angular velocity at the test point, the horizontal component of the earth rotation angular velocity, the vertical component of the earth rotation angular velocity, the gravitational acceleration, the horizontal component and the vertical component of the gravitational acceleration, and the latitude value at the test point.
2. The azimuth meter according to claim 1, further comprising:
and the power supply device is respectively connected with the dynamic tuning gyroscope and the processor and provides power required by the dynamic tuning gyroscope and the processor.
3. The azimuth meter according to claim 1, further comprising:
and the memory is connected with the processor and used for storing the azimuth angle.
4. The azimuth meter according to claim 1, further comprising:
and the display is connected with the processor and used for displaying the azimuth angle data.
5. The azimuth meter according to claim 1, wherein the processor is a DSP processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305218 CN202707037U (en) | 2012-06-27 | 2012-06-27 | Azimuth angle measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305218 CN202707037U (en) | 2012-06-27 | 2012-06-27 | Azimuth angle measurement instrument |
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| CN202707037U true CN202707037U (en) | 2013-01-30 |
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| CN 201220305218 Expired - Fee Related CN202707037U (en) | 2012-06-27 | 2012-06-27 | Azimuth angle measurement instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134171A (en) * | 2015-07-29 | 2015-12-09 | 北京航空航天大学 | Realization method for dual-spindle optic-fiber gyro continuous inclination measuring system |
| CN106680597A (en) * | 2016-12-13 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Method and system for determining orientation of strongest field sources |
| CN111307149A (en) * | 2020-02-21 | 2020-06-19 | Oppo广东移动通信有限公司 | Pointing direction determining method, pointing direction determining device, storage medium and electronic equipment |
-
2012
- 2012-06-27 CN CN 201220305218 patent/CN202707037U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134171A (en) * | 2015-07-29 | 2015-12-09 | 北京航空航天大学 | Realization method for dual-spindle optic-fiber gyro continuous inclination measuring system |
| CN106680597A (en) * | 2016-12-13 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Method and system for determining orientation of strongest field sources |
| CN106680597B (en) * | 2016-12-13 | 2019-02-15 | 云南电网有限责任公司电力科学研究院 | Determine the method and system in most high field source orientation |
| CN111307149A (en) * | 2020-02-21 | 2020-06-19 | Oppo广东移动通信有限公司 | Pointing direction determining method, pointing direction determining device, storage medium and electronic equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150627 |
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| EXPY | Termination of patent right or utility model |