CN115144616A - Wind direction indication value calibrating device and method for ocean anemometer - Google Patents
Wind direction indication value calibrating device and method for ocean anemometer Download PDFInfo
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- CN115144616A CN115144616A CN202211063359.4A CN202211063359A CN115144616A CN 115144616 A CN115144616 A CN 115144616A CN 202211063359 A CN202211063359 A CN 202211063359A CN 115144616 A CN115144616 A CN 115144616A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/18—Testing or calibrating meteorological apparatus
Abstract
The invention discloses a wind direction indication value calibrating device and a calibrating method for an ocean wind meter, belonging to the technical field of wind direction indication value calibrating of the ocean wind meter, the wind direction indication value calibrating device for the ocean wind meter comprises a base horizontally arranged at the inner bottom of a wind tunnel, a rotating circular table is rotatably arranged in the center of the base, the rotating axis of the rotating circular table is vertical, the upper end of the rotating circular table is positioned outside the base and coaxially connected with a mounting seat, and the lower end of the rotating circular table is positioned in the base; the inside fixed motor II and the angle encoder II that set up of base, motor II drive connection rotation round platform, angle encoder II connects rotation round platform. The device also comprises a controller for collecting wind direction output data of the ocean anemometer, and the controller is connected with the motor II and the angle encoder II. The wind direction indicating value calibrating device is simple and reasonable in structure, capable of reducing test errors, accurate in calibrating result, convenient and fast to operate and capable of improving wind direction indicating value calibrating efficiency.
Description
Technical Field
The invention belongs to the technical field of wind direction indication value verification of ocean anemometers, and particularly relates to a wind direction indication value verification device and a verification method of an ocean anemometer.
Background
Ocean anemometer: an instrument for measuring wind direction and wind speed; its structure includes that the top of wind cup (casing or base), wind cup is connected with the wind vane through the rotation axis, and cup inside is provided with wind direction measurement element, and when relative rotation took place between wind vane and the cup, wind direction measurement element can acquire rotation angle value and convert wind direction value output into.
At present, no matter in meteorological industry or other industry metering departments, the standard device for wind direction calibration of the ocean wind meter is a standard dial, and the standard dial is used as a standard metering device and has the following problems:
(1) The dial can not directly output a measurement result, if the dial is placed in a wind tunnel for use, manual reading is not feasible, machine vision can only be adopted, the wind direction sensor measures the diameter of a working section to be 1.3 meters, the dial is arranged at the bottom of the wind tunnel, the camera is arranged at the top, the shooting precision is not enough, if the dial is arranged by a bracket, on one hand, a flow field is influenced, on the other hand, the shooting quality is influenced, and the use cost is increased; and the use of machine vision introduces an additional source of uncertainty.
(2) The maximum allowable error of the accuracy index of the dial is +/-0.5 degrees, and the minimum index of a three-equal-circle standard measuring instrument in JJG 2057-2006 'plane angle measuring instrument verification system table' requires the maximum allowable error: +/-0.5', the accuracy of the dial is far lower than the index, the dial does not meet the measurement and transmission requirement of a calibration system meter, and the dial cannot be used as a standard measuring instrument for establishing the calibration of the wind direction sensor.
(3) The tracing of the present scale has no current effective national verification regulation or calibration standard, and can not be directly used as a standard instrument for establishing the standard.
The above three problems are the root cause of the wind direction which can not establish the measuring standard up to now. And the measurement standard can not be established, and the wind direction measurement data can not be traced to the national standard.
In order to solve the problems, a plurality of novel scientific and technological products about angle measuring instruments in the current market are researched and analyzed from the aspects of equipment principle structures, measuring performance indexes and the like, and a device capable of conveniently and accurately detecting wind direction indicating values of an ocean anemometer is provided.
Disclosure of Invention
In order to overcome the technical problems, the invention provides a device and a method for calibrating the wind direction indication value of an ocean anemometer, which are used for calibrating the wind direction indication value of the ocean anemometer, reduce the test error, improve the accuracy of the calibration result, enable the test to be more convenient and fast and improve the calibration efficiency.
The invention adopts the following technical scheme:
a wind direction indication value calibrating device of an ocean anemometer comprises a base horizontally arranged at the inner bottom of a wind tunnel, wherein a rotary circular table is rotatably arranged in the center of the base, the rotating axis of the rotary circular table is vertical, the upper end of the rotary circular table is positioned outside the base and coaxially connected with a mounting seat, and the lower end of the rotary circular table is positioned in the base; the base is internally and fixedly provided with a motor II and an angle encoder II, the motor II drives and is connected with a rotating round table, and the angle encoder II is connected with the rotating round table. The device also comprises a controller used for collecting wind direction output data of the ocean anemometer, and the controller is connected with the motor II and the angle encoder II.
Preferably, the gear ring is fixedly sleeved on the part, located in the base, of the rotary circular truncated cone, the motor II is connected with a gear, and the gear is meshed with the gear ring.
Preferably, the radius of the gear is smaller than the radius of the ring gear.
Preferably, the base is internally and horizontally fixed with a fixed plate, and the motor II and the angle encoder II are both arranged on the fixed plate.
Preferably, the rotating shaft of the angle encoder II is coaxially connected with the rotating circular truncated cone.
Preferably, the motor II adopts a high-precision planetary reducer.
A method for calibrating wind direction indication values of an ocean anemometer comprises the following steps:
s1, horizontally installing a base at the bottom in a wind tunnel in advance, and electrically connecting a controller with a wind direction measuring assembly in an ocean wind meter by using an installation seat (provided with the ocean wind meter to be detected) to obtain a wind direction output value of the ocean wind meter;
s2, starting the wind tunnel, and generating 5 m/s stable airflow in the wind tunnel, so that the position of a tail wing of a wind vane of the ocean anemometer is fixed on an airflow axis and is kept unchanged; the controller controls a motor II to rotate, the motor II rotates to drive a gear to rotate, the gear rotates to drive a meshed gear ring to rotate, the gear ring rotates to drive a rotary circular table to rotate, and then a mounting seat is driven to rotate, so that an air cup of the ocean anemometer is driven to rotate, because the wind vane cannot rotate under the action of stable airflow, the air cup and the wind vane rotate relatively through a rotating shaft at the moment, when the wind direction output to the ocean anemometer is 0 degrees, and the output value of an angle encoder II is set to be 0 degrees;
s3, the controller controls the motor II to continue rotating, the motor II drives the rotating round table and the mounting base to rotate, then the wind cup of the ocean wind meter is driven to rotate to a certain detection point and then stops rotating, the detection point accurately positions the angle position of the detection point through an angle encoder II coaxially connected with the rotating round table, and the angle encoder II outputs a standard angle value of the detection point, and the standard angle value is collected by the controller and recorded as the standard angle value;
s4, because stable airflow of 5 m/s is generated in the wind tunnel, the position of a tail wing of a wind vane of the ocean anemometer is fixed on the axis of the airflow and is kept unchanged; when the wind cup of the ocean wind meter rotates, the wind cup and the wind vane move relatively, which is equivalent to wind direction change, at the moment, the controller directly collects the wind direction output value of the ocean wind meter at the detection point, records the wind direction output value as a detection wind direction indicating value, compares the detection wind direction indicating value with the standard angle value correspondingly output by the angle encoder II in S3, judges whether the ocean wind meter is qualified or not according to the specification technical index requirement, and completes the automatic detection of the indication value of the ocean wind meter;
the specific method for judging whether the ocean anemometer is qualified or not comprises the following steps: since the measurement accuracy of the marine anemometer is ± 5 °, the measurement accuracy of the angular encoder II is ± 0.5 ", wherein 1 ° = 3600", both are rotated by the same angle, the obtained measurement values are different; subtracting the standard angle value from the detected wind direction indicating value to obtain an error value, comparing the error value with a maximum allowable error +/-5 degrees specified by the specification technical index requirement, and if the obtained error value is within the maximum allowable error range, judging that the detected ocean anemometer (4) is qualified; otherwise, the test is judged to be unqualified.
Compared with the prior art, the invention has the beneficial effects that:
1. the wind direction indicating value detection device is provided with the rotary circular table, the motor II, the angle encoder II, the mounting seat and the controller, when wind direction indicating value detection is carried out, the wind speed in the wind tunnel is kept constant, the controller drives the cup body of the ocean anemometer to rotate to a detection point by controlling the motor II, the controller compares the wind direction value output by the ocean anemometer with the standard angle value output by the angle encoder II, whether the ocean anemometer is qualified or not can be judged according to the specification technical index requirement, the cup body can be automatically rotated to the detection point by matching the motor II with the angle encoder II, the standard angle value can be accurately output, the standard angle is not read by human eyes or machine vision, the test error is reduced, the indicating value detection result is more accurate, and the operation is more convenient.
2. The angle encoder II has the existing effective national JJF 1115-2004 'photoelectric axis angle encoder calibration standard' which can realize the quantity value tracing and meets the standard building measuring standard appliance requirement.
The angle encoder II can realize digital output of the measurement result.
The metering performance of the angle encoder II can meet the accuracy indexes of the three-class circular division standard metering devices in the national verification system table JJJG 2057-2006 'plane angle metering device verification system table', namely the maximum allowable error: plus or minus 0.5', the error is 3600 times of the scale, and the accuracy is greatly improved.
The angle encoder II can meet the measurement performance requirements of the national verification regulation JJJG 1167-2019 ocean wind measuring instrument on wind direction measurement standard instruments.
In summary, the standard angle encoder II can be used as a wind direction measuring standard to establish a wind direction measuring standard of the marine anemometer.
Drawings
FIG. 1 is a general schematic of the present invention;
fig. 2 is a schematic structural diagram of the invention (with the base removed and the ocean anemometer not installed).
Description of reference numerals:
1, a base; 2, rotating the round table; 3, mounting a base; 4, marine anemometry; 41 wind cup; 42 a rotation shaft; 43 wind vane; 5 fixing the plate; 6, a motor II;7, an angle encoder II;8 gears; 9 ring gear.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A wind direction indication value calibrating device of an ocean anemometer comprises a base 1 horizontally arranged at the inner bottom of a wind tunnel, wherein a rotary circular table 2 is rotatably arranged in the center of the base 1, the rotating axis of the rotary circular table 2 is vertical, the upper end of the rotary circular table 2 is positioned outside the base 1 and is coaxially connected with an installation seat 3, and the lower end of the rotary circular table 2 is positioned in the base 1; the device comprises a base 1, a motor II6, an angle encoder II7, a controller and a computer, wherein the motor II6 is fixedly arranged in the base 1, the motor II6 is in driving connection with a rotary circular table 2, the angle encoder II7 is connected with the rotary circular table 2, the controller is used for collecting output data of the marine anemoscope 4, the controller is used for collecting voltage data through an output line connected with the marine anemoscope 4 to be detected so as to obtain wind direction output of the marine anemoscope 4, the controller is connected with the motor II6 and the angle encoder II7, and the controller is arranged in a computer of a control room; when carrying out 4 indicating value verification tests of ocean anemoscope, keep wind speed invariant in the wind-tunnel, the controller drives the cup of ocean anemoscope 4 through motor II6 and rotates to the fixed point of examining after, gather the angle value of 4 outputs of ocean anemoscope simultaneously, and do parallel contrast with this angle value and the standard angle value of gathering from angle encoder II7, it is qualified whether to combine specification technical index requirement again can judge 4 indicating values of ocean anemoscope, the standard angle value as the reference is exported by angle encoder II7, the precision is higher, and without people's eye or machine vision reading, reduce experimental error, make the verification result more accurate, it is also more convenient to examine and determine the operation, improve examination efficiency.
In order to ensure the control accuracy when the rotary circular truncated cone 2 is controlled to rotate, the part of the rotary circular truncated cone 2, which is positioned in the base 1, is fixedly sleeved with the gear ring 9, the motor II6 is connected with the gear 8, the gear 8 is meshed with the gear ring 9, the radius of the gear 8 is smaller than that of the gear ring 9, the rotation speed reduction is carried out, and the motor II6 adopts a high-precision planetary speed reducer.
In order to stably install each component, a fixing plate 5 is horizontally and fixedly arranged in the base 1, and a motor II6 and an angle encoder II7 are both arranged on the fixing plate 5.
The rotating shaft of the angle encoder II7 is coaxially and rigidly connected with the rotary circular truncated cone 2, and the rotating angle of the rotary circular truncated cone 2 can be measured accurately in real time by adopting coaxial rigid connection.
A method for calibrating wind direction indication values of an ocean anemometer comprises the following steps:
s1, horizontally installing a base 1 at the bottom in a wind tunnel in advance, installing an ocean anemometer 4 to be detected on an installation base 3, and electrically connecting a controller with a wind direction measuring component arranged in the ocean anemometer 4 to obtain a wind direction output value of the ocean anemometer 4;
s2, starting the wind tunnel, and generating a stable airflow of 5 m/s in the wind tunnel, so that the position of the tail wing of a wind vane 43 of the ocean anemometer 4 is fixed on an airflow axis and is kept unchanged; the controller controls the motor II6 to rotate, the motor II6 rotates to drive the gear 8 to rotate, the gear 8 rotates to drive the meshed gear ring 9 to rotate, the gear ring 9 rotates to drive the rotary circular table 2 to rotate, and then the mounting base 3 is driven to rotate, so that the wind cup 41 of the ocean anemometer 4 is driven to rotate, because the wind vane 43 cannot rotate under the action of stable airflow, the wind cup 41 and the wind vane 43 rotate relatively through the rotating shaft 42, when the wind vane rotates to the ocean anemometer 4, the wind direction output is 0 degree, and the output value of the angle encoder II7 is set to be 0 degree;
s3, the controller controls the motor II6 to continuously rotate, the motor II6 drives the rotating circular table 2 and the mounting base 3 to rotate, then the wind cup 41 of the ocean wind meter 4 is driven to rotate to a certain detection point and then stops rotating, the detection point accurately positions the angle position of the detection point through an angle encoder II7 coaxially connected with the rotating circular table 2, and the angle encoder II7 outputs a standard angle value of the detection point, and the standard angle value is collected by the controller and recorded as a standard angle value;
s4, because stable airflow of 5 m/s is generated in the wind tunnel, the position of the tail wing of a wind vane 43 of the ocean anemometer 4 is fixed on the axis of the airflow and remains unchanged; when the wind cup 41 of the ocean wind meter 4 rotates, the wind cup 41 and the wind vane 43 move relatively, which is equivalent to wind direction change, at the moment, the controller directly collects the wind direction output value of the ocean wind meter 4 at the detection point of the ocean wind meter 4, records the wind direction output value as a detection wind direction indicating value, compares the detection wind direction indicating value with the standard angle value correspondingly output by the angle encoder II7 in the S3, judges whether the ocean wind meter 4 is qualified or not according to the requirement of the specification technical index, and finishes automatic detection of the indicating value of the ocean wind meter 4;
the specific method for judging whether the ocean anemometer 4 is qualified or not comprises the following steps: since the measurement accuracy of the marine anemometer 4 is ± 5 °, the measurement accuracy of the angle encoder II7 is ± 0.5 ", wherein 1 ° = 3600", both are rotated by the same angle, the obtained measurement values are different; subtracting the standard angle value from the detected wind direction indicating value to obtain an error value, comparing the error value with a maximum allowable error +/-5 degrees specified by the specification technical index requirement, and if the obtained error value is within the maximum allowable error range, judging that the detected ocean anemometer 4 is qualified; otherwise, judging the product to be unqualified; such as: the two are rotated by 90 degrees at the same time, the measurement value of the ocean anemometer 4 can be 91 degrees (wind direction output value), the measurement value of the angle encoder II7 can be 90.00005 degrees (standard angle value), the difference value of the two is equal to about 1 degree, and the 1 degree is the measurement error value of the ocean anemometer.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the above embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The wind direction indication value calibrating device of the ocean anemometer comprises a base (1) horizontally mounted on an inner bottom of a wind tunnel, and is characterized in that a rotary circular table (2) is rotatably arranged in the center of the base (1), the rotating axis of the rotary circular table (2) is vertical, the upper end of the rotary circular table (2) is positioned outside the base (1) and is coaxially connected with a mounting seat (3), and the lower end of the rotary circular table (2) is positioned in the base (1); a motor II (6) and an angle encoder II (7) are fixedly arranged in the base (1), the motor II (6) is in driving connection with the rotary circular table (2), and the angle encoder II (7) is connected with the rotary circular table (2);
the marine wind meter is characterized by further comprising a controller used for collecting wind direction output data of the marine wind meter (4), and the controller is connected with a motor II (6) and an angle encoder II (7).
2. The calibrating device for the wind direction indicator value of the ocean anemometer according to claim 1, wherein a gear ring (9) is fixedly sleeved on the part, located in the base (1), of the rotating circular table (2), the motor II (6) is connected with a gear (8), and the gear (8) is meshed with the gear ring (9).
3. An ocean anemometer anemometry calibration device according to claim 2, characterized in that the radius of the gear wheel (8) is smaller than the radius of the gear ring (9).
4. The marine anemometer anemometry calibrating device according to claim 3, characterized in that a fixing plate (5) is horizontally and fixedly arranged in the base (1), and the motor II (6) and the angle encoder II (7) are both mounted on the fixing plate (5).
5. The marine anemometer anemometry calibrating device according to claim 4, characterized in that a rotating shaft of the angle encoder II (7) is coaxially and rigidly connected with the rotary truncated cone (2).
6. The marine anemometer wind direction value calibrating device according to claim 5, wherein the motor II (6) adopts a high-precision planetary reducer.
7. A method for calibrating wind direction indication values of an ocean anemometer is characterized in that the method for calibrating wind direction indication values of the ocean anemometer according to claim 6 is adopted, and comprises the following steps:
s1, horizontally installing a base (1) at the bottom in a wind tunnel in advance, installing an ocean wind meter (4) to be detected on an installation base (3), and electrically connecting a controller with a wind direction measuring assembly arranged in the ocean wind meter (4) to obtain a wind direction output value of the ocean wind meter (4);
s2, starting the wind tunnel, and generating 5 m/s stable airflow in the wind tunnel, so that the tail wing position of a wind vane (43) of the ocean anemometer (4) is fixed on an airflow axis and is kept unchanged; the controller controls a motor II (6) to rotate, the motor II (6) rotates to drive a gear (8) to rotate, the gear (8) rotates to drive a gear ring (9) which is meshed with the gear ring to rotate, the gear ring (9) rotates to drive a rotary circular table (2) to rotate, and then a mounting seat (3) is driven to rotate, so that a wind cup (41) of the ocean anemometer (4) is driven to rotate, the wind vane (43) cannot rotate under the action of stable airflow, at the moment, the wind cup (41) and the wind vane (43) rotate relatively through a rotating shaft (42), when the wind vane rotates to the ocean anemometer (4), the wind direction output is 0 degree, and the output value of an angle encoder II (7) is set to be 0 degree at the moment;
s3, the controller controls a motor II (6) to continue rotating, the motor II (6) drives a rotating circular table (2) and a mounting seat (3) to rotate, then a wind cup (41) of the ocean wind meter (4) is driven to rotate to a certain detection point and then stops rotating, the detection point accurately positions the angle position of the detection point through an angle encoder II (7) coaxially connected with the rotating circular table (2), and the angle encoder II (7) outputs a standard angle value of the detection point, and the standard angle value is collected by the controller and recorded as a standard angle value;
s4, because stable airflow of 5 m/s is generated in the wind tunnel, the tail wing position of a wind vane (43) of the ocean anemometer (4) is fixed on the axis of the airflow and is kept unchanged; after the wind cup (41) of the ocean wind meter (4) rotates, the wind cup (41) and the wind vane (43) move relatively, which is equivalent to wind direction change, at the moment, the controller directly collects the wind direction output value of the ocean wind meter (4) at the detection point, records the wind direction output value as a detection wind direction indicating value, compares the detection wind direction indicating value with the standard angle value correspondingly output by the angle encoder II (7) in S3, judges whether the ocean wind meter (4) is qualified or not according to the requirement of the specification technical index, and finishes automatic verification of the indicating value of the ocean wind meter (4);
the specific method for judging whether the ocean anemometer (4) is qualified or not comprises the following steps: since the measurement accuracy of the marine anemometer (4) is ± 5 °, the measurement accuracy of the angle encoder II (7) is ± 0.5 ", wherein 1 ° = 3600", both are rotated by the same angle, the resulting measurements are different; subtracting the standard angle value from the detected wind direction indicating value to obtain an error value, comparing the error value with a maximum allowable error +/-5 degrees specified by the specification technical index requirement, and if the obtained error value is within the maximum allowable error range, judging that the detected ocean anemometer (4) is qualified; otherwise, the test is judged to be unqualified.
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| CN202211063359.4A CN115144616A (en) | 2022-09-01 | 2022-09-01 | Wind direction indication value calibrating device and method for ocean anemometer |
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| CN202211063359.4A CN115144616A (en) | 2022-09-01 | 2022-09-01 | Wind direction indication value calibrating device and method for ocean anemometer |
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Citations (7)
| 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 |
| CN103267873A (en) * | 2013-05-31 | 2013-08-28 | 山东省科学院海洋仪器仪表研究所 | Fault detecting system and method for propeller type anemometry sensor |
| JP2016148614A (en) * | 2015-02-13 | 2016-08-18 | 富士通株式会社 | Monitor, monitoring system, monitoring program and monitoring method |
| CN107356787A (en) * | 2017-08-04 | 2017-11-17 | 无锡市计量测试院 | A kind of two-D wind speed wind direction sensor calibration system and calibration method |
| CN111239435A (en) * | 2020-01-22 | 2020-06-05 | 微特技术有限公司 | Wind speed and wind direction integrated detection sensor |
| CN112034202A (en) * | 2020-07-29 | 2020-12-04 | 天津大学 | Wind speed and direction sensor and method for kilometric ocean wind energy unmanned aircraft |
| CN112904045A (en) * | 2021-01-15 | 2021-06-04 | 西南石油大学 | Wind speed and direction integrated monitoring device |
-
2022
- 2022-09-01 CN CN202211063359.4A patent/CN115144616A/en active Pending
Patent Citations (7)
| 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 |
| CN103267873A (en) * | 2013-05-31 | 2013-08-28 | 山东省科学院海洋仪器仪表研究所 | Fault detecting system and method for propeller type anemometry sensor |
| JP2016148614A (en) * | 2015-02-13 | 2016-08-18 | 富士通株式会社 | Monitor, monitoring system, monitoring program and monitoring method |
| CN107356787A (en) * | 2017-08-04 | 2017-11-17 | 无锡市计量测试院 | A kind of two-D wind speed wind direction sensor calibration system and calibration method |
| CN111239435A (en) * | 2020-01-22 | 2020-06-05 | 微特技术有限公司 | Wind speed and wind direction integrated detection sensor |
| CN112034202A (en) * | 2020-07-29 | 2020-12-04 | 天津大学 | Wind speed and direction sensor and method for kilometric ocean wind energy unmanned aircraft |
| CN112904045A (en) * | 2021-01-15 | 2021-06-04 | 西南石油大学 | Wind speed and direction integrated monitoring device |
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