CN2453456Y - Ramote measuring rainfall device not being affected by rain-intensity - Google Patents
Ramote measuring rainfall device not being affected by rain-intensity Download PDFInfo
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- CN2453456Y CN2453456Y CN 00207125 CN00207125U CN2453456Y CN 2453456 Y CN2453456 Y CN 2453456Y CN 00207125 CN00207125 CN 00207125 CN 00207125 U CN00207125 U CN 00207125U CN 2453456 Y CN2453456 Y CN 2453456Y
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- rainfall
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- bucket
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Abstract
The utility model relates to a rainfall measuring device, which is composed of a plurality of bucket-shaped containers formed into the shape of a wheel, the utility model operates in a stepwise cycle way, and water is drained when the rainfall measuring device rotates to a lower part. Rainfall can be fixed via an excess reverse overflow method, and measurement error is low. photoelectric method is used for detecting water level, the minimum rainfall measurement is 0.05 mm, a rounding-off method in used for counting, and every 0.1 mm rainfall is counted once. A control mechanism is composed of an intermittent rotating mechanism and a liquid supplying control device which are matched together, water supply and water drainage can not be carried out in the same bucket, and the influence on measuring accuracy due to rainfall intensity is eliminated.
Description
The utility model relates to meteorology, discharge site to the real-time measurement of liquid precipitation naturally, especially can improve the measurement accuracy of rainfall intensity when big.
At present, known similar measurement mechanism has: tipping bucket type, quantitative, water conduction, hydrocone type etc.When it increased in rainfall intensity, relative error also increased.Can only reach National Meteorological Bureau to this range estimation amount recent technical indicator---relative error is less than ± 5%.Can't reach relative error less than ± 2% long-term goal.Cause of increased is with the rainfall intensity increase to cause relative error: behind the measuring vessel full water, must emptying just can carry out the measurement of following one-period.The rain of falling in drainage procedure is counted by leakage.Basic identical because of each emptying time, the rainfall of test leakage is directly proportional with rainfall intensity.So it is the shortcoming that existing instrument exists that relative error increases with rainfall intensity.
The purpose of this utility model is: a kind of test leakage when not having draining is provided.Thereby the remote measurement rainfall device that not influenced by rainfall intensity.
The purpose of this utility model is achieved in that measuring vessel lines up colyliform by a plurality of bucket shape containers, take turns the work (figure one) of changing a job, overflow vent (5) is arranged between adjacent container, and rainwater can be changed between the container that is in A, two adjacent positions of B through water inlet reversing hopper (4) control.Eliminating error that raininess causes matches at above-mentioned physical construction and operation control program and just can reach.Course of action is: stormwater overflow is to anhydrous B tube behind A tube full water; The water yield reaches a half of minimum measuring unit (0.1 millimeter) in the B tube, and water inlet changes to the B tube; After treating that overflow stops, one of container stepping, reversing hopper is follow-up to the A position, and former A tube enters drainage procedure.So just the inflow of the emptying of container and rainfall is separated, also just eliminated the influence of rainfall intensity error.
Said method has been eliminated dynamic error, makes accuracy of measurement main relevant with the manufacturing accuracy of container.Manufacturing capacity container accurately there is no difficulty, adds intuitive and reliable micro-adjusting mechanism, can reach relative error fully less than ± 2% target.And not influenced by rainfall intensity.
Be described further below in conjunction with drawings and Examples, but utility model is not limit by this.
The synoptic diagram of one of Fig. 1 embodiment;
Fig. 2 photoelectric measurement method schematic diagram;
Two the synoptic diagram of Fig. 3 embodiment;
Among the figure 1,2,3 and 1 ', 2 ', 3 ' be respectively each induction point; The 4th, advance the water reversing hopper; The 5th, overflow vent; A, B are two container position; C is a groups of containers; 6,7 is freeing port.
One of embodiment: (Fig. 1) measuring vessel is lined up colyliform by the bucket shape container that (among the figure is 16) more than ten.C is its axle, and every bucket capacity device is 0.3 millimeter quantity of precipitation (being about 9.5 cubic centimetres).Water inlet reversing hopper (4) is in the back upper place of " colyliform " groups of containers.Its below is two stop places of A, B of bucket.
Course of action: during (1) original state, the influent hopper outlet is above the bucket of B position.When (2) rainfall amount reaches 0.05 millimeter, first induction point (1) photelectric receiver output signal, counting is once.(3) during 0.15 millimeter of rainfall, second induction point (2) photelectric receiver output signal, counting once, and control one of the stepping that respectively struggles against, former B position bucket enters the A position, influent hopper outlet simultaneously is follow-up to the A position.(4) during 0.25 millimeter of rainfall, the 3rd induction point (3) photelectric receiver output signal, counting is once.(5) overflow to B position bucket after rainwater is expired, except that counting once, also the influent hopper outlet is transformed into B position bucket when reaching 0.05 millimeter.Circulation later on repeats work.
Press over system except that can reach capacity accurately, also measurement point half measuring unit (0.05 millimeter rainfall) in advance.This is just meeting meteorological standard the reading of artificial observation rainfall is being required---and be accurate to 0.1 millimeter, hundredths rounds up.Therefore, the utility model measurement point is arranged on 0.05,0.15, and 0.25 ... millimeter rainfall amount position, minimum rising is measured as 0.05 millimeter, also is one of technical characterstic.
The method photoelectric method of the perception depth of water: two sides that do not join with other container of each container, make spirogyrate by light transmissive material, light source and photoelectric tube split both sides, make it constitute projection lens when water is arranged, change original optical path, on photoelectric tube, obtain signal.Principle as shown in Figure 2,
Wherein is the original optical path synoptic diagram.Light path synoptic diagram when water is arranged below.Adopt this method can avoid the influence of dust.
Two of embodiment: (Fig. 3) the container number is kept to two, has mutual overflow vent, its top that into water control bell mouth (4) is arranged between two, two have may command freeing port (6,7) respectively.Course of action is similar to one of embodiment.
The groups of containers of one of present embodiment (C), each stop position is identical, adjusts the capacity that stop position can be adjusted every bucket, in actual use easily adjustment and stable.The stepping of container is changed and need be opened, stops steadily, can adopt its mechanism of Ma Er.This embodiment can be used for fixedly survey station of ground.
The two wheel advantages of changeing draining of embodiment, but since on it open area less relatively, swing lessly to the influence of precision, carry survey station so be suitable for oceangoing ship.Though the problem that has the need of end opening drainage often to safeguard, a kind of well-designed of also can yet be regarded as is so still provide reference.
Plan standard the long term that the utility model measuring accuracy and relative error all reach National Meteorological Bureau.Key technical problem and drainage problem that relative error increases with raininess have been solved.The counting that rounds up also meets the observation standard, and identical with the artificial observation value.
Claims (3)
1, a kind of remote measurement rainfall device, it is by the mechanism of measuring vessel and perception water level, and control gear is formed, and it is characterized in that: measuring vessel is lined up colyliform by a plurality of bucket shape containers, takes turns the work (figure one) of changing a job, and overflow vent (5) is arranged between adjacent container.
2, remote measurement rainfall device according to claim 1, it is characterized in that: two sides that do not join with other container of each container, make spirogyrate by light transmissive material, light source and photoelectric tube split both sides, make it when water is arranged, constitute projection lens, change original optical path, on photoelectric tube, obtain signal (figure two).
3, according to claim 1,2 described remote measurement rainfall devices, it is characterized in that: the photoelectric measurement point is arranged on 0.05,0.15,0.25 ... the position (among the figure one 1,2,3) of millimeter rainfall amount.Minimum rising is measured as 0.05 millimeter rainfall amount.Be volume mm
3=rain gage bucket area mm
2* (N-0.5) mm (N=1,2,3 ...) each liquid level position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207125 CN2453456Y (en) | 2000-03-24 | 2000-03-24 | Ramote measuring rainfall device not being affected by rain-intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207125 CN2453456Y (en) | 2000-03-24 | 2000-03-24 | Ramote measuring rainfall device not being affected by rain-intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2453456Y true CN2453456Y (en) | 2001-10-10 |
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ID=33574878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00207125 Expired - Fee Related CN2453456Y (en) | 2000-03-24 | 2000-03-24 | Ramote measuring rainfall device not being affected by rain-intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2453456Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228694A (en) * | 2017-07-11 | 2017-10-03 | 湖北生态工程职业技术学院 | A kind of rotary cavity type liquid flow sensor |
| CN108427148A (en) * | 2018-05-07 | 2018-08-21 | 福建师范大学 | A kind of high-precision Waterwheel-type rainfall gauge and measurement method |
-
2000
- 2000-03-24 CN CN 00207125 patent/CN2453456Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228694A (en) * | 2017-07-11 | 2017-10-03 | 湖北生态工程职业技术学院 | A kind of rotary cavity type liquid flow sensor |
| CN108427148A (en) * | 2018-05-07 | 2018-08-21 | 福建师范大学 | A kind of high-precision Waterwheel-type rainfall gauge and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |