CN1624436A - Dynamic response measuring instrument of wave height meter - Google Patents
Dynamic response measuring instrument of wave height meter Download PDFInfo
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- CN1624436A CN1624436A CN 200410093083 CN200410093083A CN1624436A CN 1624436 A CN1624436 A CN 1624436A CN 200410093083 CN200410093083 CN 200410093083 CN 200410093083 A CN200410093083 A CN 200410093083A CN 1624436 A CN1624436 A CN 1624436A
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- wave height
- rotating disk
- slide block
- dynamic response
- measuring instrument
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Abstract
A dynamic response measuring instrument of wave height meter, applied in the field of ship and ocean engineering, comprising stepping motor, turntable, crank connecting rod part, slide block, control collection system, seat, which are linked as follows: the stepping motor is fixed on the seat and connected to turntable having holes with the same axial, one end of crank connecting rod part is connected to the hole on turntable and another one to the slide block, one end of the control collection system is connected to stepping motor and another to the output of the stepping motor being tested. The invention can measure dynamic character, or supplying correction factor for the post correction of wave data collected.
Description
Technical field
The present invention relates to a kind of surveying instrument, specifically is a kind of dynamic response measuring instrument of wave height meter.Be used for the Naval Architecture and Ocean Engineering field.
Background technology
In Naval Architecture and Ocean Engineering test field, wave is as the main external applied load that is applied on the ocean engineering structure, and the accuracy of its measurement is crucial.In basin test, the main wave of measuring in the pond to be produced with wave height recorder.It all is to measure the SEA LEVEL VARIATION of wave height recorder present position that all wave height recorders are measured wave amplitude reality.Wave height recorder commonly used is in static measurement or change the requirement that all can satisfy measuring error when mild.Constantly change but work as water level, when especially the frequency ratio of Bian Huaing was higher, some wave height recorder often produced the wave amplitude of measurement and the problem that actual wave amplitude is not inconsistent.The error that this problem is brought has had a strong impact on ocean engineering experiment research.Because the measuring accuracy height, the wave height recorder that adopts probe to survey is the key instrument of wave measurement in the Naval Architecture and Ocean Engineering field tests.But it especially in the response of high frequency wave measurement, exists the problem of response variance in the response of measuring.When water level changed fast, sensor was because physics and circuit design can not in time reflect the variation of water level, and this is influential to measurement result.Speed is fast more, and then influence is big more.This is reflected in the measurement, exactly when wave height recorder is measured the wave of same wave height different frequency, and wave frequencies high more (speed of water surface rise and fall is fast more), the error of the wave height that wave height recorder records is just big more, and the dynamic response of wave height recorder is just poor more.
Find by prior art documents, " the 4th instrument and meter of boats and ships mechanics academic board of the Chinese Society of Naval Architects and Marine Engineers and measuring technology academic discussion collection of thesis " (Shipbuilding of China editorial office published in 1987, the 77th page) in just mentioned " in resistance-type; in the capacitance type wave probe; when water descends fast; still leave moisture film on the sensor, at this moment measurement result is influential.Speed is fast more, and then influence is big more." this is reflected in the measurement, exactly when wave height recorder is measured the wave of same wave height different frequency, wave frequencies high more (speed of water surface rise and fall is fast more), the error of the wave height that wave height recorder records is just big more, and the dynamic response of wave height recorder is just poor more.But the document does not provide the way that solves or revise.Because this phenomenon is because the surface tension of water produces, unless change testee---the physical property of water, otherwise just can't eliminate this influence.But in case the physical property of the water that changes, then the experimental result of carrying out in water is just inaccurate.In further retrieving, not identical or similar as yet bibliographical information with theme of the present invention.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of dynamic response measuring instrument of wave height meter is provided, make it can measure the wave height recorder dynamic response performance, select dynamic property wave height recorder preferably, or the later stage of the wave data of gathering is revised the purpose that correction factor is provided thereby reach.
The present invention is achieved by the following technical solutions, the present invention includes: stepper motor, rotating disk, toggle, slide block, control acquisition system, base.Its annexation is: the stepper motor that is installed on the base is connected with rotating disk is coaxial, has on the rotating disk and the different hole of center of turntable distance; Toggle comprises: short handle, long handle, the connector between the two and long handle limit movement mechanism, and short handle can rotate around connector, and long handle can do reciprocating linear motion along long handle limit movement mechanism (being installed on the base).The free end of the short handle of toggle is connected on some circular holes on the rotating disk.Rotatablely moving of this connection is freely, and is dismountable.During the hole of the diverse location on being connected in rotating disk, just can change the amplitude of toggle elevating movement, thereby change the elevating movement amplitude of slide block, its amplitude equals the twice of pitch-row from the center of turntable distance.Slide block and long handle free end are rigidly connected, and the free-ended mode of motion of slide block movement and long handle is in full accord.Tested wave height recorder is rigidly fixed on the slide block, and its motion is in full accord with the slide block movement mode.Control acquisition system one end is connected with stepper motor, and the other end is connected with the output of tested wave height recorder.
During work, drive the rotating disk rotation by stepper motor, the rotation of dish is driving the toggle that is installed on the dish, makes the slide block of the other end of toggle do the elevating movement of constant amplitude.Make the tested wave height recorder that is installed on the slide block in water, make reciprocal heave movement.Motion frequency equals the rotating speed of rotating disk rotation.The amplitude of lifting equals pitch-row on the rotating disk that short handle connected of toggle from the twice of center of turntable distance.During the total system motion, wave height recorder is done the vibration of various constant amplitudes in water, and the simulation wave height recorder meets with the situation of various constant amplitude waves.The output that measure wave height recorder with the control acquisition system this moment, the response condition of the signal of wave height recorder output as can be seen of just comparing with the motion amplitude of wave height recorder.Thereby measure the dynamic response coefficient of this kind wave height recorder under different frequency.
The present invention substitutes the situation that wave height recorder meets with the constant amplitude wave with the constant amplitude lifting situation of toggle control wave height recorder in water, at any time control the frequency that moves up and down of wave height recorder with stepper motor, control the amplitude that moves up and down of wave height recorder with the link position of toggle and rotating disk.Measure all and carried out by the control of control acquisition system, can measure on the limit, the limit changes the gyro frequency of stepper motor, and one-shot measurement just can obtain the response condition of the wave height recorder measurement under same wave amplitude, the different frequency.
The present invention has proposed the principle and the method for wave height recorder dynamic response verification first, and invented a kind of easy to use, performance is complete, and instrument---dynamic response measuring instrument of wave height meter carries out this detection, the result who measures with the rapid variation and the wave height recorder of actual water level compares, and draws the response condition of this wave height recorder when meeting with the different frequency wave in real time.When responding the verification of good wave height recorder, the wave amplitude of its measurement does not change with frequency change substantially.When responding the verification of bad wave height recorder, the wave amplitude of its measurement is not of uniform size with frequency change.By the measurement of dynamic response measuring instrument of wave height meter, can draw the dynamic response performance curve of different wave height recorders very easily, be convenient to the wave measurement result is carried out necessary correction, and provide crucial technical support and detection means the improvement in performance of wave height recorder.
Description of drawings
Fig. 1 structural representation of the present invention
Embodiment
As shown in Figure 1, the present invention includes: stepper motor 1, rotating disk 2, toggle 3, slide block 4, control acquisition system 5, base 6.Its annexation is: stepper motor 1 is fixed on the base 6, and stepper motor 1 and 2 coaxial connections of rotating disk have hole 11 on the rotating disk 2; Toggle 3 one ends are connected on some circular holes of rotating disk 2, and the other end and slide block 4 are rigidly connected, and control acquisition system 5 one ends are connected with stepper motor 1, and the other end is connected with the output of tested wave height recorder.
Described toggle 3 comprises: short handle 7, long handle 8, connector 9 and long handle limit movement mechanism 10, connect by connector 9 between short handle 7, the long handle 8, short handle 7 can rotate around connector 9, and long handle 8 can do reciprocating linear motion along long handle limit movement mechanism 10.Long handle limit movement mechanism 10 is rigidly fixed on the base 6, and long handle can only vertically be free to slide therein.
Have some holes 11 different on the rotating disk 2 with the center of turntable pitch of holes.The distance at these holes 11 and rotating disk 2 centers is divided into some shelves from 3 centimetres to 21 centimetres.
The free end of short handle 7 is connected on some circular holes 11 on the rotating disk 2, rotatablely moving of this connection is freely, and be dismountable, by with rotating disk 2 on the hole of each position connect the amplitude that changes toggle 3 elevating movements, thereby change the elevating movement amplitude of wave height recorder, its amplitude equals the twice of pitch-row from rotating disk 2 centre distances.
Long handle 8 free ends and slide block 4 are rigidly connected, and slide block 4 motions are in full accord with long handle 8 free-ended mode of motion.Tested wave height recorder is rigidly fixed on the slide block 4, and its motion is in full accord with the slide block movement mode.
The frequency of rotational speed regulation wave height recorder 5 elevating movements by changing stepper motor 1.
Claims (7)
1, a kind of dynamic response measuring instrument of wave height meter, it is characterized in that, comprise: stepper motor (1), rotating disk (2), toggle (3), slide block (4), control acquisition system (5), base (6), its annexation is: stepper motor (1) is fixed on the base (6), stepper motor (1) and coaxial connection of rotating disk (2), have hole (11) on the rotating disk (2), toggle (3) one ends are connected on the hole of rotating disk (2), and the other end and slide block (4) are rigidly connected, control acquisition system (5) one ends are connected with stepper motor (1), and the other end is connected with the output of tested wave height recorder.
2, dynamic response measuring instrument of wave height meter according to claim 1, it is characterized in that, described toggle (3) comprising: short handle (7), long handle (8), connector (9) and long handle limit movement mechanism (10), long handle limit movement mechanism (10) is rigidly fixed on the base (6), long handle (8) can only vertically be free to slide therein, connect by connector (9) between short handle (7), the long handle (8), short handle (7) rotates around connector (9), and long handle (8) does reciprocating linear motion along long handle limit movement mechanism (10).
3, dynamic response measuring instrument of wave height meter according to claim 1 is characterized in that, has some holes (11) on the rotating disk (2), and the distance at these holes (11) and rotating disk (2) center is divided into some shelves from 3 centimetres to 21 centimetres.
4, according to claim 2 or 3 described dynamic response measuring instrument of wave height meter, it is characterized in that, the free end of short handle (7) is connected on some circular holes on the rotating disk (2), rotatablely moving of this connection is freely, and be dismountable, by upward connecting the amplitude that changes toggle (3) elevating movement in the hole of each position with rotating disk (2), its amplitude equals the twice of pitch-row from rotating disk (2) centre distance.
According to claim 1 or 2 described dynamic response measuring instrument of wave height meter, it is characterized in that 5, long handle (8) free end and slide block (4) are rigidly connected, slide block (4) motion is in full accord with the free-ended mode of motion of long handle (8).
6, dynamic response measuring instrument of wave height meter according to claim 1 is characterized in that, tested wave height recorder is rigidly fixed on the slide block (4), and its motion is in full accord with slide block (4) mode of motion.
7, dynamic response measuring instrument of wave height meter according to claim 1 is characterized in that, the frequency of rotational speed regulation slide block (4) elevating movement by changing stepper motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093083 CN1278107C (en) | 2004-12-16 | 2004-12-16 | Dynamic response measuring instrument of wave height meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093083 CN1278107C (en) | 2004-12-16 | 2004-12-16 | Dynamic response measuring instrument of wave height meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624436A true CN1624436A (en) | 2005-06-08 |
| CN1278107C CN1278107C (en) | 2006-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410093083 Expired - Fee Related CN1278107C (en) | 2004-12-16 | 2004-12-16 | Dynamic response measuring instrument of wave height meter |
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| Country | Link |
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| CN (1) | CN1278107C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953869A (en) * | 2016-05-04 | 2016-09-21 | 江苏科技大学 | Wave height meter wave height measuring precision correcting system and measurement correcting method |
| CN108937835A (en) * | 2018-05-09 | 2018-12-07 | 张荣健 | A kind of ophthalmic facilitates adjusting type inspection desk |
| CN109746194A (en) * | 2017-11-08 | 2019-05-14 | 临泽县锐翔科技开发有限责任公司 | Detection device in a kind of communication apparatus assembly line |
-
2004
- 2004-12-16 CN CN 200410093083 patent/CN1278107C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953869A (en) * | 2016-05-04 | 2016-09-21 | 江苏科技大学 | Wave height meter wave height measuring precision correcting system and measurement correcting method |
| CN105953869B (en) * | 2016-05-04 | 2019-05-21 | 江苏科技大学 | A kind of update the system and measurement modification method for wave height recorder wave high measurement accuracy |
| CN109746194A (en) * | 2017-11-08 | 2019-05-14 | 临泽县锐翔科技开发有限责任公司 | Detection device in a kind of communication apparatus assembly line |
| CN108937835A (en) * | 2018-05-09 | 2018-12-07 | 张荣健 | A kind of ophthalmic facilitates adjusting type inspection desk |
| CN108937835B (en) * | 2018-05-09 | 2020-09-25 | 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） | Convenient adjustment type inspection desk of ophthalmic |
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| Publication number | Publication date |
|---|---|
| CN1278107C (en) | 2006-10-04 |
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Granted publication date: 20061004 Termination date: 20100118 |