CN106526236A - Method and device for calibrating current meter flow direction - Google Patents
Method and device for calibrating current meter flow direction Download PDFInfo
- Publication number
- CN106526236A CN106526236A CN201610929501.7A CN201610929501A CN106526236A CN 106526236 A CN106526236 A CN 106526236A CN 201610929501 A CN201610929501 A CN 201610929501A CN 106526236 A CN106526236 A CN 106526236A
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- CN
- China
- Prior art keywords
- current meter
- compass
- flow direction
- pallet
- calibration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a method and a device for calibrating a current meter flow direction. The device comprises a compass, a tray, a support and a test table, wherein the test table comprises a supporting frame and a table plate; the compass is fixedly arranged in the center of the table plate; the support is connected onto the tray; and the tray is connected onto the table plate in a rotating mode. The calibration method comprises steps: (1) the current meter is placed on the current meter flow direction calibration device; (2) the level of the current meter is adjusted, and a detector is started; (3) the flow direction degree of the current meter is detected, and the reading of the current meter and the scale on the compass at the corresponding position are recorded; (4) the tray is rotated to a next position, and the calibration operation is repeated; and (5) the differences between the flow direction degrees at measurement points and scales on the compass are compared, if the average value of the differences is no smaller than +/-4 DEG, the measurement parameters of the current meter are adjusted, and the test operation is repeated until the average value of the differences is smaller than +/-4 DEG. The structure is simple and easy to carry, calibration operation at any time is facilitated, the method and the device are suitable for flow direction calibration on various current meters, the calibration process is optimized, and the current meter flow direction accuracy and the flexibility are improved.
Description
Technical field
The invention belongs to field of measuring technique, is related to the calibration of measuring instrument, and in particular to a kind of current meter flow direction calibration
Method and apparatus.
Background technology
Ocean current is to study the important supplemental characteristic of ocean dynamical environment, to marine resources development, environmental information safety guarantee,
Scientific research has important function.Current meter（current meter）It is the instrument in the speed and direction for measuring sea water.Current meter
All trades and professions are entered, the vital task of national marine forecast and oceanographic survey is especially carry, the accuracy of current meter is closed
It is tied to the accuracy of national marine forecast.Calibrating/the calibration of current meter is mostly in the current meter calibration tank of hydraulic department
Carry out, as current meter calibration tank can only examine and determine/calibration speed, the calibration to direction does not have standard device and unified side
Method, is carried out just with common compass, and truing tool is heavy, coarse, and calibration steps is complicated, and calibration accuracy can not meet will
Ask.The calibrator (-ter) unit and calibration steps that exploitation adapts to domestic and international new trend current meter flow direction is imperative.
The content of the invention
It is an object of the invention to provide a kind of method of current meter flow direction calibration, to adapt to the calibration of current meter flow direction, excellent
Change the process of calibration, improve the accuracy of current meter flow direction calibration.It is a further object of the present invention to provide a kind of current meter flow direction
The device of calibration, is easy to carry the calibration operation that carry out at any time.
The technical scheme is that：The method of current meter flow direction calibration, step are as follows：
(1) two supports are inserted into the fixing hole on pallet, fix the fixed screw of bottom, current meter is placed on into current meter
Flow on calibrating installation；
(2) the adjusting knob of two supports is rotated, the level of current meter is adjusted, starts detector；
(3) detect that current meter flows to the number of degrees, record the position readings of current meter, and record the quarter of now correspondence position compass
Degree；
(4) to the next position, (3) repeat step operates Rotary tray；
(5) the detection numerical value of each measuring point detector and the difference of compass scale are compared, if detection numerical value is poor with compass scale
The meansigma methodss of value >=± 4 °, adjust the measurement parameter of current meter, repeat step (3), step (4), until detection numerical value and compass
Meansigma methodss ＜ ± 4 ° of scale difference.
Pallet is rotated, per 10 °, 15 °, 20 ° or 30 ° of measure once flow to, i.e., 36 points of test point selection calibrating every time, 24
Point, 18 points or 12 points.
The device of current meter flow direction calibration of the present invention, including compass and testboard, testboard are provided with supporting leg and platen, sieve
Disk instrument is fixedly mounted on the center of platen.Device is provided with pallet and support, and pallet is rotatably connected on platen.Pallet is provided with two
Individual fixing hole, support are fixedly mounted on pallet by fixing hole.Support is provided with adjusting knob, and the top of support is provided with bracket.
Pallet and platen connecting portion are provided with ball bearing.Compass instrument carries spirit bubble, for adjusting level.
Multilamellar principle of the present invention using compass, the dress of current meter flow direction calibration made by additional multiple function apparatus support
Put, simple structure, it is easy to carry, be easy to carry out calibration operation at any time, adapt to the calibration of various current meter flow directions.Ocean current of the present invention
The method of meter flow direction calibration, calibration operation are simple, simple and clear, optimize the process of calibration, improve current meter flow direction calibration
Accuracy and motility.
Description of the drawings
Fig. 1 is the structural representation that current meter of the present invention flows to calibrating installation；
Fig. 2 is 1 axonometric chart；
Wherein：1 empennage, 2 detection sensors, 3 impellers, 4 supports, 5 adjusting knobs, 6 fixing holes, 7 brackets,
8 wires, 9 pallets, 10 compass, 11 detectors, 12 screws, 13 bracing frames, 14 platens, 15 ball axles
Hold.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is described in detail.The scope of the present invention is not limited to embodiment,
Those skilled in the art make any change in the range of claim is limited and fall within the scope of protection of the invention.
Current meter of the present invention flows to the device of calibration as shown in Figure 1 and Figure 2, including compass 10, pallet 9 and support 4 and survey
Test stand.Testboard is provided with supporting leg 13 and platen 14, and compass is fixedly mounted on the center of platen, and pallet is rotatably connected on platen
On, connecting portion is provided with ball bearing 15.Pallet is provided with two fixing holes 6, and support is fixed with screw 12 by fixing hole and pacified
It is mounted on pallet.The top of support is provided with bracket 7, for holding up current meter, adjusting knob 5 is provided with the middle of support, for adjusting
It is calibrated the high balance of current meter.Compass carries spirit bubble, adjusts the level of compass and testboard.Current meter includes leaf
Wheel 3, detection sensor 2, empennage 1 and detector 11, detection sensor are connected with detection instrument circuit by wire 8.
Current meter of the present invention flows to the process of calibration：
(1) two supports 4 are inserted the fixing hole 6 on pallet, the fixed screw 12 of bottom is fixed, current meter is placed on into support
On frame 7；
(2) the adjusting knob 5 of two supports is rotated, the level of current meter is adjusted, is started detector 11 and is calibrated；
(3) detect that current meter flows to the number of degrees, record current meter flows to reading, and records the scale of this correspondence position compass 10；
(2) pallet 9 is rotated into 15 °, (3) repeat step operates；
(5) the detection numerical value of each measuring point detector and the difference of compass scale are compared, if detection numerical value is poor with compass scale
The meansigma methodss of value >=± 4 °, adjust the measurement parameter of current meter, repeat step (3), step (4), until detection numerical value and compass
Meansigma methodss ＜ ± 4 ° of scale difference.
Per se with compass, when compass is lain in a horizontal plane on pallet, compass automatically points to earth magnetism to compass
South poles, rotate the graduated disc of outmost turns, make the zero degree alignment compass South Pole, as standard zero degree.Current meter is placed on and is propped up
On frame, instrument support is rotated equivalent to rotation current meter.The direction reading of current meter detector is read during measure, and observes sieve
The orientation angle of disk instrument most outer disk.The whether accurate of the orientation measurement of current meter can be examined and determine/be calibrated to the contrast of two numbers.Compass
For the reference instrument of Jing measurement verifications station calibrating.
Claims (4)
1. a kind of method that current meter flow direction is calibrated, step are as follows：
(1) by two supports（4）Fixing hole on insertion pallet（6）, the fixed screw of bottom is fixed, current meter is placed on
Current meter is flowed on calibrating installation；
(2) the adjusting knob of two supports is rotated（5）, the level of current meter is adjusted, starts detector（11）；
(3) detect that current meter flows to the number of degrees, record the reading that flows to of current meter, and record now correspondence position compass（10）'s
Scale；
(4) Rotary tray（9）To the next position, (3) repeat step operates；
(5) the detection numerical value of each measuring point detector and the difference of compass scale are compared, if detection numerical value and compass scale difference
Meansigma methodss >=± 4 °, adjust the measurement parameter of current meter, repeat step (3), step (4), until detection numerical value and compass scale is poor
Meansigma methodss ＜ ± 4 ° of value.
2. the method for current meter flow direction calibration according to claim 1, is characterized in that：The pallet（9）Rotate per 10 °,
15 °, 20 ° or 30 ° measure are once flowed to.
3. a kind of device of current meter flow direction calibration, including compass（10）And testboard, testboard is provided with bracing frame（13）With
Platen（14）, the compass is fixedly mounted on the center of platen；It is characterized in that：Described device is provided with pallet（9）And support
（4）, the pallet is rotatably connected on platen；The pallet is provided with two fixing holes（6）, the support is solid by fixing hole
Dingan County is mounted on pallet；The support is provided with adjusting knob（5）, the top of support is provided with bracket（7）.
4. the device of current meter flow direction calibration according to claim 3, is characterized in that：The pallet（9）And platen（14）
Connecting portion is provided with ball bearing（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929501.7A CN106526236A (en) | 2016-10-31 | 2016-10-31 | Method and device for calibrating current meter flow direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929501.7A CN106526236A (en) | 2016-10-31 | 2016-10-31 | Method and device for calibrating current meter flow direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106526236A true CN106526236A (en) | 2017-03-22 |
Family
ID=58291858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929501.7A Pending CN106526236A (en) | 2016-10-31 | 2016-10-31 | Method and device for calibrating current meter flow direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990842A (en) * | 2019-04-24 | 2019-07-09 | 水利部南京水利水文自动化研究所 | Hydrology current measuring instrument inclination angle performance detector |
| CN112858728A (en) * | 2021-02-04 | 2021-05-28 | 国家海洋局南海标准计量中心 | Vertical electromagnetic ocean current measuring instrument flow direction calibration device, method and equipment |
| CN117538566A (en) * | 2024-01-09 | 2024-02-09 | 国家海洋局南海标准计量中心 | Flow direction calibration experimental device and method for towing inclined type current meter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095895A (en) * | 2010-12-14 | 2011-06-15 | 边文超 | Calibration system of wind direction sensor |
| CN201984084U (en) * | 2010-12-03 | 2011-09-21 | 福建省大气探测技术保障中心 | Wind-direction sensor-calibrating instrument |
| CN203786145U (en) * | 2014-01-15 | 2014-08-20 | 马汶菲 | Wind direction calibration device for wind sensor |
-
2016
- 2016-10-31 CN CN201610929501.7A patent/CN106526236A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201984084U (en) * | 2010-12-03 | 2011-09-21 | 福建省大气探测技术保障中心 | Wind-direction sensor-calibrating instrument |
| CN102095895A (en) * | 2010-12-14 | 2011-06-15 | 边文超 | Calibration system of wind direction sensor |
| CN203786145U (en) * | 2014-01-15 | 2014-08-20 | 马汶菲 | Wind direction calibration device for wind sensor |
Non-Patent Citations (1)
| Title |
|---|
| 黄晓青: ""海流计流向校准及不确定度的评定"", 《计量与测试技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990842A (en) * | 2019-04-24 | 2019-07-09 | 水利部南京水利水文自动化研究所 | Hydrology current measuring instrument inclination angle performance detector |
| CN112858728A (en) * | 2021-02-04 | 2021-05-28 | 国家海洋局南海标准计量中心 | Vertical electromagnetic ocean current measuring instrument flow direction calibration device, method and equipment |
| CN117538566A (en) * | 2024-01-09 | 2024-02-09 | 国家海洋局南海标准计量中心 | Flow direction calibration experimental device and method for towing inclined type current meter |
| CN117538566B (en) * | 2024-01-09 | 2024-04-16 | 国家海洋局南海标准计量中心 | Flow direction calibration experimental device and method for towing inclined type current meter |
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Effective date of abandoning: 20200508 |
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