CN114779371A - High-reliability wide-range tipping bucket rainfall sensor for oblique water injection and error hedging method - Google Patents
High-reliability wide-range tipping bucket rainfall sensor for oblique water injection and error hedging method Download PDFInfo
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- CN114779371A CN114779371A CN202210239550.3A CN202210239550A CN114779371A CN 114779371 A CN114779371 A CN 114779371A CN 202210239550 A CN202210239550 A CN 202210239550A CN 114779371 A CN114779371 A CN 114779371A
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Abstract
A tipping bucket rainfall sensor with high reliability and wide range for oblique water injection and an error hedging method belong to tipping bucket rainfall sensors. The method comprises the following steps: the metering hopper assembly further comprises: a diversion trench; the two diversion trenches are respectively arranged above the left hopper chamber and the right hopper chamber. The structure form and the water injection mode of the tipping bucket rainfall sensor are the oblique water injection mode of the structure of the reversing groove or the two-way diversion groove, rainwater is injected into the end part or the middle area of the tipping bucket chamber through the reversing groove or the diversion groove in the oblique water injection mode, a dynamic additional impact moment Mc and a dynamic potential energy moment Ms which are positively correlated with the rainfall intensity are generated in the area, the tipping bucket is overturned in advance, the water discharge amount of the tipping bucket is further reduced, and the dynamic reduction quantity Vp is opposite to the equivalent of Vx; therefore, a measuring error hedging method is generated, and the measuring error is greatly reduced. The invention is suitable for various tipping buckets with different sensing quantities and large and small deflection angle structures, and effectively improves the measurement precision and the reliability of instruments while greatly widening the rain intensity range.
Description
Technical Field
The invention relates to a tipping bucket rainfall sensor, belongs to single-layer tipping bucket rainfall sensors, and particularly relates to a tipping bucket rainfall sensor with an inclined water injection structure, which is high in reliability, wide in range and high in precision, and an error hedging method.
Background
The invention relates to a Chinese patent of fixed-inclination type tipping bucket rainfall sensor for adjusting the height of a tipping bucket counterweight body, which has the following patent application numbers: 202110890249.4, patent publication No.: CN 113484938A. Disclosed is a dump bucket rainfall sensor, comprising: the device comprises a rain bearing port assembly 1, an outer barrel 2, a base 3, a water injection funnel 4, a tipping bucket support 5, a metering tipping bucket assembly 6, a left tipping bucket inclination angle support assembly 7, a right tipping bucket inclination angle support assembly 8, a reed pipe 9, a horizontal bubble 10, a horizontal support plate 11 and a support plate horizontal adjusting device 12; wherein, the measurement tipping bucket assembly 6 comprises: a tipping bucket shaft 6-1, a middle partition plate 6-2, a left bucket chamber 6-3, a right bucket chamber 6-4 and a permanent magnet 6-5.
The tipping bucket type rainfall sensor is a rainfall measuring instrument which is the most widely used rainfall in various countries in the world at present, and the known tipping bucket type rainfall sensor has the outstanding advantages of simple structure, long service life, low price and no power consumption, can be used for remote measurement, and is widely used in various fields of hydrology, water conservancy, agriculture, meteorology, flood control, disaster reduction, transportation and the like.
The working principle of the known tipping bucket type rainfall sensor is as follows: a tipping bucket type mechanical bistable weighing mechanism based on a balance weighing principle.
The known water injection method is a water injection method at the root of the hopper chamber, and water columns are injected into the root of the hopper chamber along the axle center of the tipping bucket through the axial lead of a water injection funnel. The known tipping bucket rain sensors use this water injection method without exception.
The mechanical bistable structure is a structural form used by a common tipping bucket type rainfall sensor, and the mechanical bistable structure exists as follows: the error is Vx.
The bistable tipping bucket type rainfall sensor is installed by utilizing the left and right tipping bucket components in an inclined way, the swing angle theta between the central line of a water injection column of the sensor and the central line of a middle partition plate of the tipping bucket is = 11-22 degrees, and the weight of the sensor in the vertical direction is as follows: w is a group ofLeft side of、WRight sideThe weight is used for measuring the weight of water bearing in the tipping buckets on the right side and the left side. When the water inlet amount of the water storage bucket reaches the preset weight W, the tipping bucket overturns and pours water until the other empty tipping bucket enters a water storage state, and the tipping bucket continuously enters water in a section of area with a time period t when the tipping bucket starts to overturn until rainwater is injected into the other bucket chamber, so that the error Vx without being metered occurs.
∆Vx=V0-VP............................（1）
In the formula:
the absolute error amount generated by the bucket in each turnover is called as the device difference, and the unit is ml;
V0the unit is ml which is the theoretical value of the tipping bucket in a certain corresponding sensing quantity;
VPmeasured drainage quantity value, unit is ml;
the current Vx is the inevitable metering error of the tipping bucket type rainfall sensor, and the magnitude is related to the injection intensity Q and the water injection switching time t of the bucket chamber, and the formula is as follows:
∆Vx=Q·∆t............................（2）
in the formula: the time to switch the water injection is the time to switch the two chambers. The size of the Δ t is related to the size of the tipping bucket water overturning transition angle and the size of the self mass of the tipping bucket body.
The equation of motion is:
m-turnover moment of rainwater in upper bucket chamber
I-rotational inertia of the tipping bucket component;
omega-tipping bucket component turnover angular velocity;
t-switching time of water injection of the tipping bucket component.
Relative error E of tipping bucket type rain intensity sensor in national standardbThe calculation formula of (2) is as follows:
in the formula:
E bskip bucket metering error (relative error);
The measurement accuracy grade of the tipping bucket rainfall sensor in China is shown in the following table:
TABLE 1 sensor accuracy rating
| Grade of accuracy | Rain intensity range | Skip bucket metering error Eb |
| Ⅰ | 0.01mm/min～4.0 mm/min | ≤±2% |
| Ⅱ | 0.01mm/min～4.0 mm/min | ≤±3% |
| Ⅲ | 0.01mm/min～4.0 mm/min | ≤±4% |
The known tipping bucket rainfall sensor has four resolutions, namely 1mm, 0.5mm, 0.2mm and 0.1 mm.
Wherein the optimized value of the swing amplitude angle theta of the tipping bucket rainfall sensor with the resolution of 1mm is 22 degrees.
The optimized value of the swing amplitude angle theta of the tipping bucket rainfall sensor with resolution of 0.5mm is 15-16 degrees.
The optimized value of the swing amplitude angle theta of the 0.2mm force-distinguishing tipping bucket rainfall sensor is 11 degrees.
The 0.1mm resolution tipping bucket rainfall sensor is of a multilayer tipping bucket type structure.
The measuring error of the tipping bucket rainfall sensor with the resolution of 1mm can reach the I-grade range of the national standard of less than or equal to +/-2 percent, but the tipping bucket is abandoned because the sensor is not suitable for measuring the rainfall day and the intercepting amount of the tipping bucket is too large.
Wherein the 0.1mm resolution single-layer tipping bucket rainfall sensor has the error of more than or equal to plus or minus 8 percent in the rainfall intensity range of 0.01mm/min to 4.0 mm/min due to too large relative error, and is abandoned by far exceeding the national standard grade III range.
Today single layer skip rain sensors with resolution of only 0.5mm and 0.2mm are in mass production and application.
When the rainfall intensity is changed within the range of 0.01 mm/min-4.0 mm/min, the measurement error of the tipping bucket rainfall sensor with the resolution of 0.5mm can reach the level II of the national standard of less than or equal to +/-3%, the measurement error of the tipping bucket rainfall sensor with the resolution of 0.2mm can reach the level III of the national standard of less than or equal to +/-4%, and the tipping bucket rainfall sensor belongs to a low-grade product with accuracy.
The reliability and the stability of the tipping bucket type rainfall sensor are positively correlated with the swing amplitude angle theta and the mass of the bucket body, and the larger the swing amplitude angle theta is, the larger the reverse moment is, and the higher the stability and the reliability are.
The range of poor reliability and stability is that the swing amplitude angle theta of the known 0.5 mm-resolution tipping bucket rainfall sensor is 15-16 degrees and the swing amplitude angle theta of the known 0.2 mm-resolution tipping bucket rainfall sensor is 11 degrees. In particular, a small swing angle θ rainfall sensor mounted on a high pole is most problematic in that the sensor shakes when a strong wind is encountered, and false alarm signals without precipitation easily occur.
At present, the world climate changes violently, extreme high-intensity rainfall frequently occurs, the extreme value of the rainfall intensity is far beyond the range of 4.0 mm/min, particularly, the typhoon storm rainfall frequently occurs in coastal areas in the south, the instantaneous rainfall intensity can reach 10mm/min or even more, the rainfall intensity range of the existing single-layer tipping bucket rainfall sensor is only 0-4 mm/min, and when the rainfall intensity exceeds 4mm/min, the error range rises straightly and the normal work cannot be realized.
In summary, the prior art dump-bucket rainfall sensor has the following disadvantages and disadvantages:
1. the rain intensity range is small, and the normal work can not be realized when the rain intensity range exceeds 4 mm/min.
2. The accuracy is poor, and the accuracy can only reach the II-level or III-level accuracy standard within the 0-4 mm/min rain intensity range.
3. The stability and the reliability are poor, and rainfall amount false alarm is easy to generate in a strong wind environment.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a high-reliability large-range tipping bucket rainfall sensor for obliquely injecting water and an error hedging method, so as to solve the problems of small rainfall intensity range, poor accuracy, poor stability and poor reliability of the existing tipping bucket rainfall sensor.
In order to realize the aim and solve the problems of the existing tipping bucket rainfall sensor, the invention provides a high-reliability wide-range tipping bucket rainfall sensor for obliquely injecting water and an error hedging method; the method comprises the following steps: a tipping bucket rainfall sensor and an error hedging method based on the tipping bucket rainfall sensor.
The tipping bucket formula rainfall sensor includes: the device comprises a rain bearing port assembly, an outer barrel, a base, a water injection funnel, a tipping bucket bracket, a metering tipping bucket assembly, a left tipping bucket inclination angle strut assembly, a right tipping bucket inclination angle strut assembly, a reed pipe, a horizontal bubble, a horizontal strut and a strut horizontal adjusting device; wherein, measurement tipping bucket subassembly include: the tipping bucket comprises a tipping bucket shaft, a middle partition plate, a left bucket chamber, a right bucket chamber and a permanent magnet; further comprising: a diversion trench; the two diversion trenches are respectively arranged above the left hopper chamber and the right hopper chamber.
The tipping bucket type rainfall sensor further comprises: the reversing slot assembly comprises a reversing slot assembly and a reversing driving device; the reversing groove component is positioned below the water injection funnel and above the diversion groove;
the reversing driving device is arranged above the middle partition plate;
the reversing groove component is as follows: the linear reversing groove component is a Y-shaped reversing groove component or an A-shaped reversing groove component;
the reversing driving device is as follows: the linear reversing driving device is either a Y-shaped reversing driving device or an A-shaped reversing driving device.
The front and rear central planes of the diversion trench are respectively superposed with the front and rear central planes of the left hopper chamber and the right hopper chamber;
the high-end water inlet of the diversion trench faces the center line of the water outlet of the water injection funnel in a stable state of water storage of the hopper chamber; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle part of the left hopper chamber and the right hopper chamber;
or the high-end water inlet of the diversion trench is over against the straight-line reversing trench component or is right below the water outlet of the Y-shaped reversing trench component; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle area positions of the left hopper chamber and the right hopper chamber.
The diversion trench is fixed on the inner side or the outer side of the hopper chamber through one or more mounting columns; or the diversion trench is fixed on the middle clapboard through one or more mounting columns;
or the diversion trench is fixed on the tipping bucket bracket through one or more mounting columns and is positioned above the metering tipping bucket assembly and below the reversing trench assembly.
The included angle lambda between the bottom of the diversion trench and the horizontal plane when the skip bucket is full of water is 1-60 degrees;
the width of guiding gutter be 3~20mm, highly be 6~10 mm.
The in-line reversing slot assembly comprises: the reversing linkage device comprises a rotating shaft, a linear reversing groove, a left positioning rod, a right positioning rod and a linear reversing groove reversing linkage device; the rotating shaft is arranged on the central surface of the tipping bucket bracket and is right above the metering tipping bucket assembly; the linear reversing groove is arranged right above the metering tipping bucket assembly through a rotating shaft; the left positioning rod and the right positioning rod are symmetrically connected to the tipping bucket bracket; the linear reversing groove reversing linkage device is symmetrically arranged below the linear reversing groove.
The Y-shaped reversing slot assembly comprises: the reversing linkage device comprises a rotating shaft, a Y-shaped reversing groove, a left positioning rod, a right positioning rod and a Y-shaped reversing groove; the rotating shaft is arranged on the central surface of the tipping bucket bracket and is right above the metering tipping bucket assembly; the Y-shaped reversing groove is arranged right above the metering tipping bucket assembly through a rotating shaft; the left positioning rod and the right positioning rod are symmetrically connected to the tipping bucket bracket; the Y-shaped reversing groove reversing linkage device is arranged at the upper end of the Y-shaped reversing groove.
The A-shaped reversing slot assembly comprises: the reversing linkage device comprises an A-shaped reversing groove rotating shaft, a left side groove, a right side groove, a left positioning rod, a right positioning rod and an A-shaped reversing groove reversing linkage device; the A-shaped reversing groove rotating shaft is arranged on the central plane of the A-shaped reversing groove component; the left side groove and the right side groove are symmetrically arranged, and the upper ends of the left side groove and the right side groove are communicated; the A-shaped reversing slot reversing linkage device is arranged on the side surface of the left side slot or the right side slot.
The A-shaped reversing groove reversing linkage device of the linear reversing driving device, the Y-shaped reversing driving device and the A-shaped reversing driving device has the same structure and is one of a plate or a rod;
the linear reversing driving device and the Y-shaped reversing driving device are respectively used for driving the linear reversing groove or the Y-shaped reversing groove to rotate in the process of overturning the metering tipping bucket assembly;
the A-shaped reversing groove reversing linkage device of the A-shaped reversing driving device is used for limiting the A-shaped reversing groove component.
The A-shaped reversing driving device comprises: the front support plate, the front axle hole, the rear support plate and the rear axle hole; the front support plate and the rear support plate are symmetrically connected above the middle partition plate; the front shaft hole is arranged on the front support plate; the rear shaft hole is arranged on the rear support plate; the central line of the front shaft hole is superposed with the central line of the rear shaft hole;
the front shaft hole and the rear shaft hole have the same structure and are through holes or blind holes from the inner side.
The structure of the straight reversing slot reversing linkage device is the same as that of the Y-shaped reversing slot reversing linkage device, and the straight reversing slot reversing linkage device is one of a long rod or a flat plate; the number of the long rods is two or more; the number of the flat plates is two.
The bottom of the diversion trench and the bottom of the straight line-shaped reversing trench are the same as the bottom of the left side trench and the bottom of the right side trench in shape and structure, and are in one of a linear shape, a fold line shape or an arc shape.
The cross section of the diversion trench is the same as that of the straight reversing trench, and is in one of a shape with a closed upper end or a shape with a non-closed upper end; wherein the upper end is not closed and is shaped like a V, or a U, or a semicircle, or a polygon; the upper end is closed and is O-shaped, or elliptic, or polygonal;
the upper parts of the straight reversing grooves are all provided with openings in the water injection range of the water injection funnel;
the cross sections of the left side groove and the right side groove are the same in shape and are not closed at the upper ends; the upper end is not closed and is in one of a V-shaped shape, a U-shaped shape, a semicircular shape or a polygonal shape.
The Y-shaped reversing groove comprises: the upper water receiving port, the middle partition plate, the shaft hole and the lower drainage pipe; the middle partition board is arranged on the central surface of the Y-shaped reversing groove; the shaft hole is arranged on the middle clapboard; the upper water receiving port is communicated with the lower water drainage pipe and is arranged above the lower water drainage pipe;
the cross section of the upper water receiving port and the lower water discharging pipe is the same in shape and is one of circular, elliptic, rectangular or polygonal.
The error hedging method based on the dump bucket rainfall sensor is as follows.
Error hedging method: when raining, rainwater is injected into the inclined diversion groove through the water outlet of the water injection funnel and then is injected into the end part or the middle area of the hopper chamber through the lower end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water-filling flow being generated in the end or middle region of the chamberA dynamic additional impact torque Mc positively correlated to the magnitude of the intensity of the rain Q, a water body injected into the end or middle area of the bucket chamber generates a high water level area positively correlated to the intensity of the rain Q in the area, an additional dynamic high water level potential energy torque Ms is generated, and the water storage capacity of the water storage bucket chamber does not reach the critical reuse water value V under the combined action of the Mc and the Δ Ms0Before, the overturning happens at the moment, the corresponding reduction amount of the drainage amount of the tipping bucket is Δ Vp, both Δ Vp and Δ Vx are positively correlated with the rain intensity Q, and the dynamic hedging of the reduction amount of Δ Vp and the ware difference of Vx is realized.
Error hedging method: during rainfall, rainwater flows into the inclined diversion groove after being injected into the reversing groove through the water outlet of the water injection funnel, then is injected into the end part or the middle area of the hopper chamber through the lower-end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water injection flow generates a dynamic additional impact torque Mc in the end or middle area of the chamber positively correlated with the magnitude of the rain intensity Q, and the water injected into the end or middle area of the chamber generates a high level area positively correlated with the rain intensity Q in the area, thereby generating an additional dynamic high level potential energy torque Ms, and the water storage capacity of the water storage chamber does not reach the critical reuse value V under the combined action of Mc and Ms0Before, the overturning happens at the moment, the corresponding reduction amount of the drainage amount of the tipping bucket is Δ Vp, both Δ Vp and Δ Vx are positively correlated with the rain intensity Q, and the dynamic hedging of the reduction amount of Δ Vp and the ware difference of Vx is realized.
The tipping bucket has the beneficial effects that by adopting the technical scheme, the tipping bucket can be turned over in advance when the water storage capacity of the tipping bucket does not reach a theoretical value, and the water discharge capacity of the tipping bucket is reduced. When the reduction Δ Vp of the drainage of the tipping bucket is equal to the difference Vx of the known tipping bucket, the measurement precision of the tipping bucket can be reduced to be less than or equal to +/-2% within the rain intensity measurement range of 0.01 mm/min-10.0 mm/min.
The amplitude angle theta of the dump bucket pendulum is multiplied to be within the range of 30 degrees and is not limited by the range of 11-22 degrees. The invention can realize two dynamic overturning moments M only by lengthening the length L of the diversion trench or increasing the included angle between the bottom base line of the diversion trench and the horizontal plane when the tipping bucket is full of waterC、∆MSThe synchronous increase is carried out, so that the reduction of the dump bucket drainage is increased, and the aim of offsetting the reduction of the dump bucket drainage between the small volume Vp and the small volume Vx is achieved. Therefore, when in subsequent design, the weight of the tipping bucket does not need to be reduced as much as possible or the amplitude angle theta of the tipping bucket pendulum does not need to be reduced for reducing the error rate Vx; even the weight of the tipping bucket and the amplitude angle theta of the tipping bucket swing can be increased, so that the purpose of increasing the reliability of the rainfall sensor is achieved.
Under the premise that the bucket body mass and the water storage bucket structure are determined, the length L of the diversion trench and the included angle between the bottom base line of the diversion trench and the horizontal plane when the bucket is full can be correctly selected to effectively change the dynamic high-level potential energy moment Ms and the dynamic additional impact moment Mc, and under the condition of change of external rain intensity (0-10 mm/min), the reduction amount Vp of the bucket displacement and the Δ Vx of the bucket can obtain the best dynamic impact effect.
When the tipping bucket works, the tipping moment sigma M is generatedFReversing moment sigma M greater than the overturning resistanceNWhen the bucket is turned over, the bucket begins to turn over, wherein the high water potential energy moment Ms of the far end or the middle part in the water storage bucket chamber and the impact moment M of the water body in the guide groove on the far end or the middle part of the water storage bucket chamberCThe two moments are positively correlated with rainfall intensity, and can be adjusted to optimal values by adjusting the length of the diversion trench, the included angle between the bottom base line of the diversion trench and the horizontal plane when the tipping bucket is full of water, the fixing mode of the diversion trench and the fixing point of the diversion trench. The concrete formula is as follows:
the reverse torque: sigma MN=MK+∆MO+∆ML；
Overturning moment: sigma MF=MZ+∆MS+∆MC；
MK: gravity moment of the tipping bucket assembly;
∆M0: the friction torque of the tipping bucket shaft;
∆ML: residual water moment in the drainage hopper;
MZ: the water weight moment is under the dynamic water level line in the bucket chamber.
The advantages are that: after rainwater passes through the diversion trench, two overturning moment powers which are positively correlated with rainfall intensity are generated in the end part or the middle area of the bucket chamber, so that the measuring tipping bucket overturns in advance, the water discharge amount of the tipping bucket is reduced, and the reduction amount Vp and the ware difference Vx are oppositely impacted; therefore, a dynamic offset method for measuring errors is generated, and the measuring errors are greatly reduced. The invention is suitable for various tipping buckets with different sensing quantities and large and small deflection angle structures, and effectively improves the measurement precision and the reliability of instruments while greatly widening the rain intensity range.
Drawings
Fig. 1 is a schematic view of the general structure of claim 1 of the present invention.
Fig. 2 is a schematic view of the overall structure of the in-line shape commutating slot of the present invention.
FIG. 3 is a schematic view of the general structure of the Y-shaped commutating slot of the present invention.
FIG. 4 is a schematic view of the overall structure of the A-shaped commutating slot of the present invention.
Fig. 5 is a structural view of the guide groove of the present invention fixed to the inside of the hopper chamber.
Fig. 6 is a structural view of the guide groove of the present invention fixed to the outside of the hopper chamber.
Fig. 7 is a structural view of the baffle groove of the present invention fixed on the middle partition plate.
Fig. 8 is a structural view of the guide groove of the present invention fixed on the skip bucket support.
Fig. 9 is a structural view of the guide groove of the present invention.
Fig. 10 is a block diagram of an in-line reversing slot assembly of the present invention.
FIG. 11 is a block diagram of an A-shaped commutation slot assembly of the present invention.
FIG. 12 is a block diagram of the Y-shaped commutating slot of the present invention.
Fig. 13 is a structural diagram of the a-shaped commutation driving device of the invention.
FIG. 14 is a moment distribution diagram of the metering hopper assembly of the present invention.
Fig. 15 is a graph comparing the rain intensity/metering error characteristics of the prior art and the present invention.
In the figure, 1, a rain receiving port assembly; 2. an outer cylinder; 3. a base; 4. a water injection funnel; 5. a skip holder; 6. a metering hopper assembly; 7. a left tipping bucket inclination strut assembly; 8. a right tipping bucket inclination strut assembly; 9. a reed switch; 10. horizontally soaking; 11. a horizontal support plate; 12. a support plate horizontal adjusting device; 13. a left diversion trench; 14. a right diversion trench; 16. a water baffle; 17. an overflow port; 6-1, a tipping bucket shaft; 6-2 middle partition board; 6-3, a left hopper chamber; 6-4, a right hopper chamber; 6-5, permanent magnet; 6-6, a linear reversing driving device; 6-7, a Y-shaped reversing driving device; 6-8, an A-shaped reversing driving device; 15-1, a linear reversing slot component; 15-2, a Y-shaped reversing slot component; 15-3, an A-shaped reversing slot component; 6-8-1, a front support plate; 6-8-2, front axle hole; 6-8-3, a rear support plate; 6-8-4, rear axle hole; 15-1-1, a rotating shaft; 15-1-2, a straight-line reversing groove; 15-1-3, a left positioning rod; 15-1-4, a right positioning rod; 15-1-5, a straight reversing groove reversing linkage device; 15-2-2, a reversing linkage device of a Y-shaped reversing groove; 15-2-1-1, and an upper water receiving port; 15-2-1-2, a middle clapboard; 15-2-1-3, shaft hole; 15-2-1-4 of lower drainage pipe; 15-3-1, an A-shaped reversing groove rotating shaft; 15-3-2, left side groove; 15-3-3 right side groove; 15-3-4, a reversing linkage device of an A-shaped reversing groove.
Detailed Description
Example 1: in fig. 1, the highly reliable wide-range tipping bucket rainfall sensor with oblique water injection of the invention comprises: the device comprises a rain bearing port assembly 1, an outer barrel 2, a base 3, a water injection funnel 4, a tipping bucket support 5, a metering tipping bucket assembly 6, a left tipping bucket inclination angle support assembly 7, a right tipping bucket inclination angle support assembly 8, a reed pipe 9, a horizontal bubble 10, a horizontal support plate 11 and a support plate horizontal adjusting device 12;
the lower end of the outer barrel 2 is connected with the base 3, the upper end of the outer barrel 2 is provided with a rain bearing port assembly 1, and the rain bearing port assembly 1 is inserted into the outer barrel 2; a support plate horizontal adjusting device 12 is connected to the base 3, and a horizontal support plate 11 is connected to the support plate horizontal adjusting device 12; the tipping bucket support 5 is connected to the horizontal support plate 11, the upper end of the tipping bucket support 5 is provided with a water injection funnel 4, and a water receiving port of the water injection funnel 4 is positioned below a water outlet of the rain bearing port assembly 1; a measuring tipping bucket component 6 is connected to the tipping bucket support 5, and the measuring tipping bucket component 6 swings left and right by taking the tipping bucket support 5 as a fulcrum; a left tipping bucket inclination angle strut assembly 7 and a right tipping bucket inclination angle strut assembly 8 are connected to a horizontal support plate 11 below the metering tipping bucket assembly 6, and the left tipping bucket inclination angle strut assembly 7 and the right tipping bucket inclination angle strut assembly 8 are positioned on two sides of a pivot of the tipping bucket support 5; a horizontal bubble 10 is connected between the left tipping bucket inclination angle strut assembly 7 and the right tipping bucket inclination angle strut assembly 8; the tipping bucket support 5 is provided with a tipping bucket shaft support, and the tipping bucket shaft 6-1 is arranged on the tipping bucket shaft support.
Wherein, the measurement tipping bucket assembly 6 comprises: the device comprises a tipping bucket shaft 6-1, a middle partition plate 6-2, a left bucket chamber 6-3, a right bucket chamber 6-4 and a permanent magnet 6-5; the measuring tipping bucket assembly 6 comprises: a tipping bucket shaft 6-1, a middle partition plate 6-2, a left tipping bucket 6-3, a right tipping bucket 6-4 and a permanent magnet 6-5; a middle clapboard 6-2 is arranged between the left tipping bucket 6-3 and the right tipping bucket 6-4, the middle clapboard 6-2 divides the two tipping buckets into the left tipping bucket 6-3 and the right tipping bucket 6-4, and a tipping bucket shaft 6-1 is arranged on the bottom surface of the tipping bucket at the lower end of the middle clapboard 6-2; the side walls of the left tipping bucket 6-3 and the right tipping bucket 6-4 are both connected with permanent magnets 6-5.
The left tipping bucket 6-3 and the right tipping bucket 6-4 are a water discharge bucket or a water storage bucket, when one tipping bucket is filled with water, the tipping bucket turns over at the other side by taking the tipping bucket shaft 6-1 as an axial direction, the tipping bucket turns over downwards to form the water discharge bucket, the tipping bucket turns over upwards to form the water storage bucket, and the water receiving port of the tipping bucket serving as the water storage bucket is positioned below the water outlet of the water injection funnel 4 in a repeated way; the side surfaces of the two tipping buckets are connected with permanent magnets 6-5, and reed pipes 9 are arranged on the running tracks of the permanent magnets 6-5.
Further comprising: a diversion trench; the two diversion trenches are a left diversion trench 13 and a right diversion trench 14 and are respectively arranged above the left hopper chamber 6-3 and the right hopper chamber 6-4.
The guiding gutter include: a groove bottom and a groove side; the two sides of the groove bottom extend upwards to form a ledge.
The high end of the diversion trench is blocked or not blocked, and the low end of the diversion trench is not blocked.
The front and rear central planes of the diversion trench are respectively superposed with the front and rear central planes of the left hopper chamber 6-3 and the right hopper chamber 6-4.
In the stable state of water storage of the hopper chamber, a high-end water inlet of the diversion trench is over against the central line of a water outlet of the water injection funnel 4; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle part of the left hopper chamber and the right hopper chamber.
In fig. 5, 6 and 7, the diversion trench is fixed on the inner side or the outer side of the hopper chamber through one or more mounting columns; or the diversion trench is fixed on the middle clapboard through one or more mounting columns.
The included angle lambda between the bottom of the diversion trench and the horizontal plane when the tipping bucket is full of water is 1-60 degrees.
The width of guiding gutter be 3~20mm, highly be 6~10 mm.
The bottom of the diversion trench is in one of a linear shape, a fold line shape or an arc shape.
The cross section of the diversion trench is in one of a shape with a closed upper end or a shape with a non-closed upper end; wherein the upper end is not closed and is in a V-like shape, a U-like shape, a semicircle shape or a polygon shape; the upper end is closed and is O-shaped, or is oval, or is polygonal.
An error hedging method based on the tipping bucket rainfall sensor comprises the following steps: when raining, rainwater is injected into the inclined diversion groove through the water outlet of the water injection funnel, then is injected into the end part or the middle area of the hopper chamber through the lower end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water injection flow generates a dynamic additional impact torque Mc positively correlated with the magnitude of the rain intensity Q in the end area or the middle area of the bucket chamber, a water body injected into the end area or the middle area of the bucket chamber generates a high water level area positively correlated with the rain intensity Q in the area, an additional dynamic high water level potential energy torque Ms is generated, and the water storage capacity of the water storage bucket chamber does not reach the critical water turnover value V under the combined action of the Mc and the Ms0Before the moment, the bucket is turned over, the corresponding reduction amount of the drainage amount of the bucket is Δ Vp, both Vp and Vx are positively correlated with the rain intensity Q, and the reduction amount of Vp and the difference of Vx are realized.
Under the condition that the mass and the structure of a bucket body of the tipping-bucket rainfall sensor are determined, the rain intensity Q/metering error Eb characteristic curve is related to the following factors:
1. the dynamic high-water-level potential energy moment Ms and the dynamic additional impact moment Mc are positively correlated with the magnitude of the external rain intensity Q.
2. The size of the dynamic high-water-level potential energy moment (Ms) is positively correlated with the length L of the diversion trench.
3. The size of the dynamic high water level potential energy moment Ms is positively correlated with the size of an included angle between the bottom of the diversion trench and the horizontal plane when the tipping bucket is full of water.
4. The dynamic additional impact moment is equal to the Mc, and the included angle between the bottom of the guide groove and the horizontal plane when the tipping bucket is full of water is positively correlated with the Mc.
Example 2: a tipping bucket rainfall sensor and a diversion trench matched with the tipping bucket rainfall sensor for use.
In fig. 9, the flow guide groove includes: a tank bottom, a tank side, a water baffle 16 and an overflow port 17; the two sides of the groove bottom extend upwards to form a ledge. The water baffle 16 is connected to the ledge of the diversion trench, and the distance from the lower end of the water baffle 16 to the bottom of the diversion trench is 2-8 mm; one or more overflow ports 17 are arranged between the water baffle 16 and the water inlet end of the diversion trench. The rest was the same as in example 1.
The diversion trench in this embodiment 2 is an overflow diversion trench, and the overflow diversion trench can also be used to replace the diversion trenches used in embodiments 3, 4, and 5, thereby forming a technical scheme of using an overflow diversion trench tipping bucket rainfall sensor.
Example 3: the skip bucket rainfall sensor is based on the embodiment 1.
In fig. 2, the method further includes: the reversing slot assembly and the reversing driving device; the reversing groove component is positioned below the water injection funnel 4 and above the diversion groove.
In fig. 8, the diversion trench is used in cooperation with the in-line reversing trench assembly 15-1; the diversion trench is fixed on the tipping bucket bracket 5 through one or more mounting columns and is positioned above the metering tipping bucket assembly 6 and below the reversing trench assembly.
The reversing driving device is arranged above the middle partition plate 6-2;
in fig. 10, the reversing slot assembly is: a linear commutation slot assembly 15-1. The linear reversing groove component 15-1 comprises: the device comprises a rotating shaft 15-1-1, a straight-line reversing groove 15-1-2, a left positioning rod 15-1-3, a right positioning rod 15-1-4 and a straight-line reversing groove reversing linkage device 15-1-5; the rotating shaft 15-1-1 is arranged on the central surface of the tipping bucket support 5 and right above the metering tipping bucket assembly 6; the linear reversing groove 15-1-2 is arranged right above the metering tipping bucket assembly 6 through a rotating shaft 15-1-1; the left positioning rod 15-1-3 and the right positioning rod 15-1-4 are symmetrically connected to the tipping bucket bracket 5; the linear reversing groove reversing linkage devices 15-1-5 are symmetrically arranged below the linear reversing grooves 15-1-2.
The cross section of the straight-line reversing groove 15-1-2 is in one of an upper end closed shape or an upper end unclosed shape, wherein the upper end unclosed shape is in a V-like shape, a U-like shape, a semicircle or a polygon; the upper end is closed and is O-shaped, or elliptical, or polygonal;
the upper parts of the straight-line reversing grooves 15-1-2 are all provided with openings in the water injection range of the water injection funnel 4.
The bottom of the straight reversing groove 15-1-2 is in one of a linear shape, a fold line shape and an arc shape.
The structure of the straight reversing groove reversing linkage device 15-1-5 is one of a long rod or a flat plate; the number of the long rods is two or more; the number of the flat plates is two.
In the stable state of water storage of the hopper chamber, the high end of the diversion trench is over against the position right below the water outlet of the in-line reversing slot assembly 15-1; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle part of the left hopper chamber and the right hopper chamber.
The reversing driving device is as follows: a linear reversing driving device 6-6. The linear reversing driving device 6-6 is one of a plate or a rod; the linear reversing driving device 6-6 is used for driving the linear reversing groove 15-1-2 to rotate in the process of overturning the metering tipping bucket assembly 6.
Example 4: the dump body rainfall sensor according to embodiment 1.
In fig. 3, further comprising: the reversing slot assembly and the reversing driving device; the reversing groove component is positioned below the water injection funnel 4 and above the diversion groove.
The diversion trench is fixed on the tipping bucket bracket 5 through one or more mounting columns and is positioned above the metering tipping bucket assembly 6 and below the reversing trench assembly.
The reversing driving device is arranged above the middle clapboard 6-2;
the reversing slot assembly is as follows: a Y-shaped reversing slot component 15-2. The Y-shaped reversing slot assembly 15-2 comprises: a rotating shaft 15-1-1, a Y-shaped reversing groove, a left positioning rod 15-1-3, a right positioning rod 15-1-4 and a Y-shaped reversing groove reversing linkage device 15-2-2; the rotating shaft 15-1-1 is arranged on the central surface of the tipping bucket bracket 5 and right above the metering tipping bucket assembly 6; the shaft hole 15-2-1-3 of the Y-shaped reversing groove is arranged right above the metering tipping bucket assembly 6 through a rotating shaft 15-1-1; the left positioning rod 15-1-3 and the right positioning rod 15-1-4 are symmetrically connected to the tipping bucket bracket 5; the Y-shaped reversing groove reversing linkage device 15-2-2 is arranged at the upper end of the Y-shaped reversing groove.
In fig. 12, the Y-shaped commutation slot includes: an upper water receiving port 15-2-1-1, a middle partition plate 15-2-1-2, a shaft hole 15-2-1-3 and a lower drainage pipe 15-2-1-4; the middle partition plate 15-2-1-2 is arranged on the central plane of the Y-shaped reversing groove; the shaft hole 15-2-1-3 is arranged on the middle clapboard 15-2-1-2; the upper water receiving port 15-2-1-1 is communicated with the lower drainage pipe 15-2-1-4, and the upper water receiving port 15-2-1-1 is arranged above the lower drainage pipe 15-2-1-4.
The cross section of the upper water receiving port 15-2-1-1 and the cross section of the lower water discharging pipe 15-2-1-4 are the same, and are one of circular, oval, rectangular or polygonal.
The Y-shaped reversing groove reversing linkage device 15-2-2 is structurally one of a long rod or a flat plate; the number of the long rods is two or more; the number of the flat plates is two.
The reversing driving device is as follows: and Y-shaped reversing driving devices 6-7. The Y-shaped reversing driving device 6-7 is one of a plate or a rod; the Y-shaped reversing driving device 6-7 is used for driving the Y-shaped reversing groove to rotate in the process of overturning the metering tipping bucket assembly 6.
In a stable state of water storage of the hopper chamber, the high end of the diversion trench is over against the position right below a water outlet of the Y-shaped reversing slot component 15-2; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle part of the left hopper chamber and the right hopper chamber.
Example 5: the dump body rainfall sensor according to embodiment 1.
In fig. 4, further comprising: the reversing slot assembly comprises a reversing slot assembly and a reversing driving device; the reversing groove component is positioned below the water injection funnel 4 and above the diversion groove.
The reversing driving device is arranged above the middle partition plate 6-2;
in fig. 11, the reversing slot assembly is: an A-shaped reversing slot assembly 15-3. The A-shaped reversing slot assembly 15-3 comprises: the device comprises an A-shaped reversing groove rotating shaft 15-3-1, a left side groove 15-3-2, a right side groove 15-3-3, a left positioning rod 15-1-3, a right positioning rod 15-1-4 and an A-shaped reversing groove reversing linkage device 15-3-4; the A-shaped reversing groove rotating shaft 15-3-1 is arranged on the central plane of the A-shaped reversing groove component 15-3; the left side groove 15-3-2 and the right side groove 15-3-3 are symmetrically arranged, and the upper ends of the left side groove and the right side groove are communicated; the A-shaped reversing groove reversing linkage device 15-3-4 is arranged on the side face of the left side groove 15-3-2 or the right side groove 15-3-3.
The bottom of the left side groove 15-3-2 and the bottom of the right side groove 15-3-3 have the same shape and structure, and are linear, zigzag or arc.
The cross sections of the left side groove 15-3-2 and the right side groove 15-3-3 are the same in shape, the upper ends of the left side groove and the right side groove are not closed, and the left side groove and the right side groove are in a V-shaped shape or a U-shaped shape or a semicircular shape or a polygon shape.
In fig. 13, the reversing driving device is: and an A-shaped reversing driving device 6-8. The A-shaped reversing driving device 6-8 comprises: the front support plate 6-8-1, the front axle hole 6-8-2, the rear support plate 6-8-3 and the rear axle hole 6-8-4; the front support plate 6-8-1 and the rear support plate 6-8-3 are symmetrically connected above the middle partition plate 6-2; the front axle hole 6-8-2 is arranged on the front support plate 6-8-1; the rear shaft hole 6-8-4 is arranged on the rear support plate 6-8-3; the central line of the front axle hole 6-8-2 is superposed with the central line of the rear axle hole 6-8-4.
The front axle hole 6-8-2 and the rear axle hole 6-8-4 have the same structure and are through holes or blind holes from the inner side.
The A-shaped reversing groove reversing linkage device 15-3-4 of the A-shaped reversing driving device 6-8 is one of a plate or a rod; the A-shaped reversing groove reversing linkage device 15-3-4 of the A-shaped reversing driving device 6-8 is used for limiting the A-shaped reversing groove component 15-3.
Example 6: an error hedging method based on any one of the dump bucket rainfall sensors in the embodiments 3, 4 and 5: during rainfall, rainwater is injected into the reversing groove through the water outlet of the water injection funnel and then flows into the inclined diversion groove, then is injected into the end part or the middle area of the hopper chamber through the lower end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water injection flow generates a dynamic additional impact torque Mc positively correlated with the magnitude of the rain intensity Q in the end area or the middle area of the bucket chamber, a water body injected into the end area or the middle area of the bucket chamber generates a high water level area positively correlated with the rain intensity Q in the area, an additional dynamic high water level potential energy torque Ms is generated, and the water storage capacity of the water storage bucket chamber does not reach the critical water turnover value V under the combined action of the Mc and the Ms0Before, the overturning happens at the moment, the corresponding reduction amount of the drainage amount of the tipping bucket is Δ Vp, both Δ Vp and Δ Vx are positively correlated with the rain intensity Q, and the dynamic hedging of the reduction amount of Δ Vp and the ware difference of Vx is realized.
Claims (15)
1. A high-reliability wide-range tipping bucket rainfall sensor of oblique water injection comprises: the device comprises a rain bearing port assembly, an outer barrel, a base, a water injection funnel, a tipping bucket bracket, a metering tipping bucket assembly, a left tipping bucket inclination strut assembly, a right tipping bucket inclination strut assembly, a reed pipe, a horizontal bubble, a horizontal strut and a strut horizontal adjusting device; wherein, measurement tipping bucket subassembly include: the tipping bucket comprises a tipping bucket shaft, a middle partition plate, a left bucket chamber, a right bucket chamber and a permanent magnet;
the method is characterized in that: further comprising: a diversion trench; the two diversion trenches are respectively arranged above the left hopper chamber and the right hopper chamber.
2. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 1, characterized by: further comprising: the reversing slot assembly and the reversing driving device; the reversing groove component is positioned below the water injection funnel and above the diversion groove;
the reversing driving device is arranged above the middle partition plate;
the reversing slot assembly is as follows: the linear reversing groove component is a Y-shaped reversing groove component or an A-shaped reversing groove component;
the reversing driving device is as follows: the linear reversing driving device is either a Y-shaped reversing driving device or an A-shaped reversing driving device.
3. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection according to claim 1 or 2, characterized in that: the front and rear central planes of the diversion trench are respectively superposed with the front and rear central planes of the left hopper chamber and the right hopper chamber;
the high-end water inlet of the diversion trench faces the center line of the water outlet of the water injection funnel in a stable state of water storage of the hopper chamber; the water outlets at the lower ends of the diversion trenches are respectively positioned at the end parts or the middle area positions of the left hopper chamber and the right hopper chamber;
or the high-end water inlet of the diversion trench is over against the straight-line reversing trench component or is right below the water outlet of the Y-shaped reversing trench component; the lower water outlets of the diversion trenches are respectively positioned at the end parts or the middle area positions of the left hopper chamber and the right hopper chamber.
4. The highly reliable wide-range tipping bucket rainfall sensor of oblique water injection of claim 1 or 2, characterized by: the diversion trench is fixed on the inner side or the outer side of the hopper chamber through one or more mounting columns; or the diversion trench is fixed on the middle clapboard through one or more mounting columns;
or the diversion trench is fixed on the tipping bucket bracket through one or more mounting columns and is positioned above the metering tipping bucket assembly and below the reversing trench assembly.
5. The highly reliable wide-range tipping bucket rainfall sensor of oblique water injection of claim 1, characterized by: the included angle lambda between the bottom of the diversion trench and the horizontal plane when the tipping bucket is full of water is 1-60 degrees;
the width of guiding gutter be 3~20mm, the height is 6~10 mm.
6. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 2, characterized by: the in-line reversing slot assembly comprises: the reversing linkage device comprises a rotating shaft, a linear reversing groove, a left positioning rod, a right positioning rod and a linear reversing groove reversing linkage device; the rotating shaft is arranged on the central surface of the tipping bucket bracket and is right above the metering tipping bucket assembly; the linear reversing groove is arranged right above the metering tipping bucket assembly through a rotating shaft; the left positioning rod and the right positioning rod are symmetrically connected to the tipping bucket bracket; the linear reversing groove reversing linkage device is symmetrically arranged below the linear reversing groove.
7. The highly reliable wide-range tipping bucket rainfall sensor of oblique water injection of claim 2, characterized by: the Y-shaped reversing slot assembly comprises: the reversing linkage device comprises a rotating shaft, a Y-shaped reversing groove, a left positioning rod, a right positioning rod and a Y-shaped reversing groove; the rotating shaft is arranged on the central surface of the tipping bucket bracket and right above the metering tipping bucket assembly; the Y-shaped reversing groove is arranged right above the metering tipping bucket assembly through a rotating shaft; the left positioning rod and the right positioning rod are symmetrically connected to the tipping bucket bracket; the Y-shaped reversing groove reversing linkage device is arranged at the upper end of the Y-shaped reversing groove.
8. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 2, characterized by: the A-shaped reversing slot assembly comprises: the reversing linkage device comprises an A-shaped reversing groove rotating shaft, a left side groove, a right side groove, a left positioning rod, a right positioning rod and an A-shaped reversing groove; the A-shaped reversing groove rotating shaft is arranged on the central plane of the A-shaped reversing groove component; the left side groove and the right side groove are symmetrically arranged, and the upper ends of the left side groove and the right side groove are communicated; the A-shaped reversing slot reversing linkage device is arranged on the side surface of the left side slot or the right side slot.
9. The highly reliable wide-range tipping bucket rainfall sensor with inclined water injection according to claim 2, which is characterized in that:
the A-shaped reversing groove reversing linkage device of the linear reversing driving device, the Y-shaped reversing driving device and the A-shaped reversing driving device has the same structure and is one of a plate or a rod;
the linear reversing driving device and the Y-shaped reversing driving device are respectively used for driving the linear reversing groove or the Y-shaped reversing groove to rotate in the process of overturning the metering tipping bucket assembly;
the A-shaped reversing groove reversing linkage device of the A-shaped reversing driving device is used for limiting the A-shaped reversing groove component.
10. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 2, characterized by: the A-shaped reversing driving device comprises: the front support plate, the front axle hole, the rear support plate and the rear axle hole; the front support plate and the rear support plate are symmetrically connected above the middle partition plate; the front shaft hole is arranged on the front support plate; the rear shaft hole is arranged on the rear support plate; the central line of the front shaft hole is superposed with the central line of the rear shaft hole;
the front shaft hole and the rear shaft hole have the same structure and are through holes or blind holes from the inner side.
11. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection according to claim 6 or 7, characterized in that: the structure of the straight reversing slot reversing linkage device is the same as that of the Y-shaped reversing slot reversing linkage device, and the straight reversing slot reversing linkage device is one of a long rod or a flat plate; the number of the long rods is two or more; the number of the flat plates is two.
12. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 1, 6 or 8, characterized by: the bottom of each diversion trench and the bottom of each straight line-shaped reversing trench are the same as those of the left side trench and the right side trench in shape and structure, and are in a linear shape, a broken line shape or an arc shape;
the cross section of the diversion trench is the same as that of the straight-line reversing trench, and is in one of a shape with a closed upper end or a shape with a non-closed upper end; wherein the upper end is not closed and is shaped like a V, or a U, or a semicircle, or a polygon; the upper end is closed and is O-shaped, or elliptical, or polygonal;
the upper parts of the straight reversing grooves are all provided with openings in the water injection range of the water injection funnel;
the cross sections of the left side groove and the right side groove are the same in shape and are not closed at the upper ends; the shape of the upper end is not closed, and is one of a V-like shape, a U-like shape, a semicircle or a polygon.
13. The highly reliable wide range tipping bucket rainfall sensor of oblique water injection of claim 7, characterized by: the Y-shaped reversing slot comprises: the upper water receiving port, the middle partition plate, the shaft hole and the lower drainage pipe are arranged on the upper water receiving port; the middle partition board is arranged on the central plane of the Y-shaped reversing groove; the shaft hole is arranged on the middle clapboard; the upper water receiving port is communicated with the lower drainage pipe and is arranged above the lower drainage pipe;
the cross section of the upper water receiving port and the lower water discharging pipe is the same in shape and is one of circular, elliptic, rectangular or polygonal.
14. The method for the error hedging of the high-reliability wide-range tipping bucket rainfall sensor based on the oblique water injection of the claim 1 is characterized in that: error hedging method: when raining, rainwater is injected into the inclined diversion groove through the water outlet of the water injection funnel, then is injected into the end part or the middle area of the hopper chamber through the lower end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water injection flow generates a dynamic additional impact torque Mc in the end or middle area of the chamber positively correlated with the magnitude of the rain intensity Q, and the water injected into the end or middle area of the chamber generates a high level area positively correlated with the rain intensity Q in the area, thereby generating an additional dynamic high level potential energy torque Ms, and the water storage capacity of the water storage chamber does not reach the critical reuse value V under the combined action of Mc and Ms0Before, the overturning happens at the moment, the corresponding reduction amount of the drainage amount of the tipping bucket is Δ Vp, both Δ Vp and Δ Vx are positively correlated with the rain intensity Q, and the dynamic hedging of the reduction amount of Δ Vp and the ware difference of Vx is realized.
15. According toThe method for the error hedging of the high-reliability wide-range tipping bucket rainfall sensor with the oblique water injection of the claim 14 is characterized in that: error hedging method: during rainfall, rainwater is injected into the reversing groove through the water outlet of the water injection funnel and then flows into the inclined diversion groove, then is injected into the end part or the middle area of the hopper chamber through the lower end water outlet of the diversion groove, and the rainwater injected into the hopper chamber flows to the root part of the hopper chamber along the end part or the middle area of the hopper chamber; the water injection flow generates a dynamic additional impact torque Mc positively correlated with the magnitude of the rain intensity Q in the end area or the middle area of the bucket chamber, a water body injected into the end area or the middle area of the bucket chamber generates a high water level area positively correlated with the rain intensity Q in the area, an additional dynamic high water level potential energy torque Ms is generated, and the water storage capacity of the water storage bucket chamber does not reach the critical water turnover value V under the combined action of the Mc and the Ms0Before the moment, the bucket is turned over, the corresponding reduction amount of the drainage amount of the bucket is Δ Vp, both Vp and Vx are positively correlated with the rain intensity Q, and the reduction amount of Vp and the difference of Vx are realized.
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|---|---|---|---|
| CN202210239550.3A CN114779371A (en) | 2022-03-12 | 2022-03-12 | High-reliability wide-range tipping bucket rainfall sensor for oblique water injection and error hedging method |
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|---|---|---|---|
| CN202210239550.3A CN114779371A (en) | 2022-03-12 | 2022-03-12 | High-reliability wide-range tipping bucket rainfall sensor for oblique water injection and error hedging method |
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