CN112415636A - Calibrating device of rainfall sensor - Google Patents
Calibrating device of rainfall sensor Download PDFInfo
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- CN112415636A CN112415636A CN202011205266.1A CN202011205266A CN112415636A CN 112415636 A CN112415636 A CN 112415636A CN 202011205266 A CN202011205266 A CN 202011205266A CN 112415636 A CN112415636 A CN 112415636A
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Abstract
The invention discloses a calibrating device of a rainfall sensor, which comprises: the raindrop simulation module simulates rainfall corresponding to the rain intensity according to the control signal sent by the control module; the calibration module measures rainfall calibration parameters; the control module sends out corresponding control signals according to the received preset rainfall parameters and sends the control signals to the raindrop simulation module, wherein the preset rainfall parameters comprise: rain intensity, rainfall, raindrop particle speed, shape, raindrop size and distribution; and comparing the rainfall calibration parameters with the rainfall parameters measured by the detected rainfall sensor to obtain a verification result. The control module controls the raindrop simulation module to simulate rainfalls in different rainfall potentials, and the rainfall calibration parameters measured by the calibration module are compared with the rainfall parameters measured by the rainfall sensor to be detected to obtain a verification result, so that the rainfall sensor is verified in both macroscopic and microscopic physical quantities, and the verification comprehensiveness is improved.
Description
Technical Field
The invention relates to the field of meteorological monitoring, in particular to a calibrating device of a rainfall sensor.
Background
Precipitation is a phenomenon that water in clouds falls to the ground in a liquid or solid state, and is a basic element of meteorological observation. A commonly used rainfall sensor verification system comprises: a system for simulating rainfall and raininess by taking a flowmeter (or a standard glass container) as a core; a system for regulating the speed of rotation and sticking simulation particles by adopting a glass turntable; a calibration system adopting a circular sphere to replace raindrops. However, a system which simulates rainfall and rainfall intensity by taking a flowmeter (or a standard glass container) as a core cannot simulate microscopic physical quantity of rainfall, and a system which regulates the speed of a glass rotating disc, rotates and pastes simulated particles has high requirements on transparency and cleanliness of the glass disc, the glass disc has large scale, the particles need to be manually pasted, and a rainfall sensor based on the principles of tipping, weighing, impact potential energy and the like cannot be verified. The calibration system adopting the round ball body to replace raindrops needs to manually operate the size, the number and the operation of the ball body, the ball body can not simulate different falling speeds, or only can launch three sizes and is a round small ball, the shape of the round small ball is not consistent with that of natural rainfall, and the rainfall sensor based on the principles of tipping bucket, weighing, impact potential energy and the like can not be calibrated. The three types of detection methods cannot accurately simulate the raindrop speed, shape, raindrop size and distribution in the nature, and cannot simultaneously meet the automatic detection work for observing macroscopic and microscopic physical quantity rainfall sensors.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to provide a calibrating apparatus for a rainfall sensor, which overcomes the defect that the calibrating apparatus for a rainfall sensor in the prior art cannot simultaneously satisfy the automatic calibration of macroscopic and microscopic physical quantities of the rainfall sensor.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the invention provides a calibrating device of a rainfall sensor, which comprises: the rainfall simulation device comprises a control module, a raindrop simulation module and a calibration module, wherein the raindrop simulation module is connected with an external water injection device and used for simulating rainfall corresponding to rainfall by using a preset simulation method according to a control signal sent by the control module; the calibration module is used for measuring rainfall calibration parameters; the control module is connected with the detected rainfall sensor, the raindrop simulation module and the calibration module respectively, is used for sending out corresponding control signals according to received preset rainfall parameters and sending the control signals to the raindrop simulation module, and the preset rainfall parameters comprise: rain intensity, rainfall, raindrop particle speed, shape, raindrop size and distribution; and comparing the rainfall calibration parameters with the rainfall parameters measured by the detected rainfall sensor to obtain a verification result.
In one embodiment, the calibrating device measures rainfall calibration parameters corresponding to the sensor type according to the detected rainfall sensor type, and calibrates the detected rainfall sensor.
In one embodiment, the calibrating apparatus for a rainfall sensor further comprises: the storage module is connected with the control module and used for storing historical verification results; the display module is respectively connected with the control module and the storage module, and is used for displaying rainfall calibration parameters, rainfall parameters and verification results in real time and calling historical verification results inquired by a user; and the interface module is used for connecting the control module with the raindrop simulation module, the calibration module and the detected rainfall sensor.
In one embodiment, the calibrating apparatus for a rainfall sensor further comprises: experiment shaft, double-deck support, protection casing and a plurality of laboratory, wherein, examined the rainfall sensor and arrange in the protection casing, a laboratory is placed respectively to the top and the bottom of experiment shaft, and double-deck support and control module all arrange in the laboratory of experiment shaft bottom.
In one embodiment, the raindrop simulation module includes: the raindrop control device is connected with the interface module, the external water injection device and the raindrop generator and is used for controlling the raindrop generator to simulate rainfall corresponding to the rain situation by using a preset simulation method according to the control signal.
In one embodiment, the calibration module comprises: the device comprises a light beam sensor, an area-array camera and a precision balance, wherein the light beam sensor is arranged on the upper surface of a first layer of a double-layer support and used for measuring the light intensity attenuation caused by raindrop particles passing through a light beam and measuring rainfall, raindrop intensity, raindrop particle speed, shape, raindrop size and distribution parameters; the area array camera is arranged on the lower surface of the first layer of the double-layer support and is used for measuring the light intensity attenuation caused when the raindrop particles pass through the light curtain and measuring the rainfall, the rainfall intensity, the speed, the shape, the size and the distribution parameters of the raindrop particles; the precision balance is installed at the bottom of the protective cover, is arranged on the upper surface of the second layer of the double-layer support and is used for simulating the mass of raindrops through measurement and calculating the rainfall and the rain intensity.
In one embodiment, the raindrop generator is placed in a laboratory at the top of the experimental shaft, and comprises: the device comprises a water injection port, a water tank, a fixing plate and a needle head, wherein the water injection port is connected with the water tank and is connected with a raindrop control device through a conduit; the needles are arranged at the bottom of the water tank and are arranged in a hexagonal array; and the fixing plate is used for fixing the water filling port, the water tank and the needle head.
In one embodiment, the raindrop control device includes: the device comprises a flow control device and auxiliary equipment, wherein the flow control device is arranged in a laboratory at the top of an experimental vertical shaft, is respectively connected with an interface module, an external water injection device and a raindrop generator, and is used for controlling the raindrop generator to simulate rainfall with corresponding rain intensity and rainfall by using a preset simulation method according to a control signal; and the auxiliary equipment is connected with the raindrop generator and is used for controlling the raindrop generator to simulate rainfall with corresponding raindrop particle speed, shape, raindrop size and distribution according to the control signal.
In one embodiment, a flow control apparatus comprises: the filter is used for filtering impurities in water injected by the external water injection device; the pressure regulating pump is connected with the control module and is used for controlling the rain intensity according to the control signal; and the electromagnetic valve is connected with the control module and used for controlling the rainfall according to the control signal.
In one embodiment, the auxiliary device comprises: the rain drop generator comprises a vibrating motor and a screen, wherein the vibrating motor is arranged at the top of a water tank, the screen is arranged at the bottom of the water tank, and the control module controls the rain drop generator to simulate rainfall of different scales of rain drop particle speeds, shapes, rain drop sizes and distribution by controlling the operating parameters of the vibrating motor and the operating parameters of the screen.
The technical scheme of the invention has the following advantages:
1. according to the calibrating device for the rainfall sensor, the control module controls the raindrop simulation module to simulate rainfall at different rainfall potentials, and rainfall calibration parameters measured by the calibration module are compared with rainfall parameters measured by the detected rainfall sensor to obtain a calibrating result, so that the rainfall sensor is calibrated in two aspects of observing macroscopic and microscopic physical quantities, and the comprehensiveness of calibration is improved.
2. According to the calibrating device of the rainfall sensor, the raindrop control device assists the raindrop generator to simulate raindrops with different diameters, the final speed of the raindrops with different diameters and the key technology of the shapes and the distribution of the raindrops with different diameters; the flow control equipment controls the rainfall intensity, the rainfall amount and the rainfall stability thereof, and the auxiliary equipment assists the raindrop generator to simulate the uniformity in the effective rainfall area; the calibration equipment measures the speed, the shape, the size and the distribution of raindrops, compares the measured value of the detected rainfall sensor, and obtains the measurement error of the detected instrument through calculation, thereby realizing the full-automatic verification test of the rainfall sensor and improving the efficiency of the verification test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a specific example of a certification apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram of another embodiment of the assay device according to the embodiment of the present invention;
FIG. 3 is a block diagram of another embodiment of the assay device according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of specific installation positions of the calibration device, the double-layer bracket and the protective cover according to the embodiment of the invention;
fig. 5(a) is a schematic view of a specific example of a raindrop generator according to an embodiment of the present invention;
fig. 5(b) is a composition diagram of a specific example of the raindrop generator according to the embodiment of the present invention;
fig. 5(c) is a schematic view of another specific example of the raindrop generator according to the embodiment of the present invention;
FIG. 6 is a block diagram showing another embodiment of the assay device according to the embodiment of the present invention;
fig. 7 is a schematic diagram of a specific example of a flow control device according to an embodiment of the present invention;
fig. 8 is a composition diagram of a specific example of a control module according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
An embodiment of the present invention provides a calibrating apparatus for a rainfall sensor, which is applied to an occasion where measurement accuracy of various types of rainfall sensors needs to be calibrated, and as shown in fig. 1, the calibrating apparatus includes: the device comprises a control module 1, a raindrop simulation module 2 and a calibration module 3.
As shown in fig. 1, the raindrop simulation module 2 according to the embodiment of the present invention is connected to an external water injection device, and is configured to simulate rainfall corresponding to a rain condition by using a preset simulation method according to a control signal sent by the control module 1.
In order to meet the requirement of automatic verification work for observing macroscopic and microscopic physical quantity rainfall sensors at the same time, the embodiment of the invention presets rainfall parameters comprising: the rainfall intensity, the rainfall, the raindrop particle speed, the shape, the raindrop size and the distribution are different, and the control module 1 controls the raindrop simulation module 2 to simulate the rainfall corresponding to the rainfall situation by using a preset simulation method according to preset rainfall parameters, wherein the preset rainfall parameters are different, and the corresponding rainfall situations are different, namely the rainfall intensity, the rainfall, the raindrop particle speed, the shape, the raindrop size and the distribution are different. The preset simulation method in the embodiment of the invention is a potential energy method, and the rainfall simulation module is controlled to simulate the real rainfall condition instead of using other objects to replace the simulated rainfall condition (for example, the raindrop falling is simulated by using the falling of a small ball, and the like), so that the rainfall sensor can be further and more accurately verified.
As shown in fig. 1, a calibration module 3 according to an embodiment of the present invention is connected to a control module 1, and is used for measuring rainfall calibration parameters.
The calibration module 3 of the embodiment of the invention measures the raindrop mass to calculate the elements such as rainfall, raindrop intensity and the like, and measures the information such as rainfall, raindrop intensity, raindrop particle speed, shape, raindrop size and distribution and the like by measuring the light intensity attenuation caused when raindrops enter the light curtain and the light beam, thereby obtaining the rainfall calibration parameters.
As shown in fig. 1, a control module 1 according to an embodiment of the present invention is respectively connected to a detected rainfall sensor, a raindrop simulation module 2, and a calibration module 3, and configured to send a corresponding control signal according to a received preset rainfall parameter, and send the control signal to the raindrop simulation module 2; and comparing the rainfall calibration parameters with the rainfall parameters measured by the detected rainfall sensor to obtain a verification result.
The control module 1 of the embodiment of the invention sends out a corresponding control signal according to preset rainfall parameters, wherein the control signal is used for controlling the raindrop simulation module 2 to simulate rainfall with different rainintensities, rainfall amounts, raindrop particle speeds, shapes, raindrop sizes and distributions; the control module 1 judges the error of the measured parameter of the detected rainfall sensor by comparing the rainfall calibration parameter acquired by the calibration module 3 with the rainfall parameter measured by the detected rainfall sensor, and judges whether the detected rainfall sensor is qualified or not according to the error to obtain a verification result. The verification result can be reported to the verification personnel in an electronic form or a paper form, and the information in the verification report is not limited to the verification result (whether the detected rainfall sensor is qualified) but also can include information such as the error of the detected rainfall sensor.
According to the calibrating device for the rainfall sensor, the control module controls the raindrop simulation module to simulate rainfall at different rainfall potentials, and rainfall calibration parameters measured by the calibration module are compared with rainfall parameters measured by the detected rainfall sensor to obtain a calibrating result, so that the rainfall sensor is calibrated in two aspects of observing macroscopic and microscopic physical quantities, and the comprehensiveness of calibration is improved.
In a specific embodiment, the calibrating device measures the rainfall calibration parameters corresponding to the sensor type according to the detected rainfall sensor type, and calibrates the detected rainfall sensor.
The calibrating device of the rainfall sensor in the embodiment of the invention can calibrate different types of rainfall sensors, such as: the control module 1 reads corresponding rainfall calibration parameters measured by the calibration module 3 according to the type of the rainfall sensor to be detected, and detects the rainfall sensor to be detected.
In a specific embodiment, as shown in fig. 2, the calibrating apparatus for a rainfall sensor further comprises: a memory module 4, a display module 5 and an interface module 6.
As shown in fig. 2, the storage module 4 according to the embodiment of the present invention is connected to the control module 1, and is configured to store historical verification results. The storage module 4 stores the rainfall calibration parameters measured by the calibration module 3 and the rainfall parameters measured by the detected rainfall sensor, which are read by the control module 1, and can store the verification results (including verification reports) obtained by the control module 1 in real time.
As shown in fig. 2, the display module 5 of the embodiment of the present invention is respectively connected to the control module 1 and the storage module, and is configured to display the rainfall calibration parameters, the rainfall parameters, and the calibration results in real time, and retrieve the historical calibration results queried by the user. The rainfall calibration parameters measured by the calibration module 3 and the rainfall parameters measured by the detected rainfall sensor can be displayed in real time in the forms of raindrop particle pictures, raindrop spectrum curves, tables and numerical values.
The interface module 6 of the embodiment of the invention is used for connecting the control module 1 with the raindrop simulation module 2, the calibration module 3 and the detected rainfall sensor. When the raindrop simulation module 2 and the calibration module 3 include a plurality of devices, the interface module 6 includes a plurality of interfaces, one device for each interface.
In a specific embodiment, the calibrating apparatus for a rainfall sensor further comprises: experiment shaft, double-deck support, protection casing and a plurality of laboratory, wherein, examined the rainfall sensor and arrange in the protection casing, a laboratory is placed respectively to the top and the bottom of experiment shaft, and double-deck support and control module 1 all arrange in the laboratory of experiment shaft bottom.
In the embodiment of the invention, the experiment vertical shaft is arranged between the raindrop simulation module 2 and the detected rainfall sensor so as to avoid the interference of natural factors such as wind and the like on the verification result, wherein the height of the experiment vertical shaft is the height for realizing the raindrop final speed by raindrops with different diameters theoretically because the raindrops with different diameters have different final speeds, and the diameter of the experiment vertical shaft needs to completely cover the effective rainfall range of the raindrop simulation module 2 in order to ensure the effective rainfall simulation range.
In order to make the air in the shaft of the experiment shaft relatively static, the embodiment of the invention respectively places a laboratory at the top and the bottom of the experiment shaft, the laboratory at the top of the experiment shaft is placed with a raindrop simulation module 2, the laboratory at the bottom of the experiment shaft is placed with a double-layer support and a control module 1, a detected rainfall sensor is placed in a protective cover, a calibration module 3 comprises a plurality of devices, the plurality of devices are arranged on the upper surface or the lower surface of a first layer of the double-layer support or arranged on an installation structure at the bottom of the protective cover, and the protective cover is arranged on the upper surface of a second layer of the double-.
In a specific embodiment, as shown in fig. 3, the raindrop simulation module 2 includes: the raindrop control device 21 is connected with the interface module 6, the external water injection device and the raindrop generator 22, and is used for controlling the raindrop generator 22 to simulate rainfall corresponding to the rainfall by using a preset simulation method according to the control signal.
The raindrop control device 21 of the embodiment of the present invention controls the operation state of its internal devices, thereby achieving control of the rainfall, the rainfall intensity, and the raindrop particle speed, shape, raindrop size, and distribution.
In one embodiment, as shown in fig. 4, the calibration module 3 includes: a light beam sensor 31, an area array camera 32 and a precision balance 33.
As shown in fig. 4, the light beam sensor 31 according to the embodiment of the present invention is disposed on the upper surface of the first layer of the double-layered support 7, and is used for measuring the attenuation of light intensity caused when raindrop particles pass through the light beam, and measuring the rainfall, the raindrop intensity, the speed, the shape, the size and the distribution parameters of the raindrop particles, and the light beam sensor 31 may be a parallel light beam sensor.
As shown in fig. 4, the area-array camera 32 according to the embodiment of the present invention is disposed on the lower surface of the first layer of the double-layered bracket, and is used for measuring the attenuation of light intensity caused by raindrop particles passing through the light curtain, and measuring the rainfall, the raindrop intensity, the speed, the shape, the size and the distribution parameters of the raindrop particles.
As shown in fig. 4, the precision balance 33 according to the embodiment of the present invention is installed at the bottom of the protection cover 8 and placed on the upper surface of the second layer of the double-layer support, and is used for calculating the rainfall and the rain intensity by measuring the mass of the simulated raindrops.
As shown in fig. 4, raindrops enter the calibration area from the vertical direction of the hole at the top of the double-layer support, and raindrops at the part of the top of the double-layer support other than the vertical direction of the hole are led out from the draft tube to avoid interfering with the calibration result.
In a specific embodiment, the raindrop generator 22 is placed in a laboratory on the top of the experimental shaft, as shown in fig. 5(a), the raindrop generator 22 is in the shape of a cap, as shown in fig. 5(b), and the raindrop generator 22 includes: water filling port 221, water tank 222, fixing plate 223 and needle 224.
As shown in fig. 5(b), the water filling port 221 of the embodiment of the present invention is connected to the water tank 222 and is connected to the raindrop control device 21 through a pipe; as shown in fig. 5(c), the needles 224 are installed at the bottom of the water tank 222 and arranged in a hexagonal array, and raindrops with different diameters can be obtained by replacing needles with different inner diameters; and a fixing plate 223 for fixing the water filling port, the water tank and the needle.
In a specific embodiment, the raindrop control device 21 shown in fig. 6 includes: a flow control device 211 and an auxiliary device 212.
The flow control equipment, the auxiliary equipment and the raindrop generator 22 of the embodiment of the invention are all arranged in a laboratory at the top of the experimental vertical shaft, and the flow control equipment is respectively connected with the interface module 6, the external water injection device and the raindrop generator 22 and is used for controlling the raindrop generator 22 to simulate rainfall with corresponding rainfall intensity and rainfall amount by using a preset simulation method according to control signals; and auxiliary equipment connected with the raindrop generator 22 and used for controlling the raindrop generator 22 to simulate rainfall with corresponding raindrop particle speed, shape, raindrop size and distribution according to the control signal.
In one embodiment, the flow control device 211 shown in fig. 7 includes: the filter 2111, the pressure regulating pump 2112 and the electromagnetic valve 2113 are connected with the water injection device, the filter 2111, the pressure regulating pump 2112, the electromagnetic valve 2113 and the water injection port 221 in sequence through conduction.
The filter 2111 of the embodiment of the invention is used for filtering impurities in water injected by an external water injection device; the pressure regulating pump 2112 is connected with the control module 1 and is used for controlling the rainfall intensity by regulating the water pressure according to the control signal; and the electromagnetic valve 2113 is connected with the control module 1 and is used for controlling the opening and closing of the water source according to the control signal.
In one embodiment, as shown in FIG. 7, the auxiliary device 212 includes: a vibration motor 2121 and a screen 2122, wherein the vibration motor 2121 is disposed on the top of the water tank 222, the screen is disposed on the bottom of the water tank 222, and the control module 1 controls the raindrop generator 22 to simulate rainfall with different raindrop particle speeds, shapes, raindrop sizes and distributions by controlling the operation parameters of the vibration motor (controlling the motor to be turned on and the frequency thereof to control the raindrop particle speeds of different scales) and the operation parameters of the screen (controlling the screen to move to control the raindrop distributions, raindrop shapes and raindrop sizes of different scales).
In a specific embodiment, as shown in fig. 8, the control module 1 of the embodiment of the present invention may be composed of computer test software and an integrated controller, wherein the integrated controller receives an instruction of the test software, and instructs the flow control device and the auxiliary device to control the raindrop generator 22 to simulate rainfall by a set program; controlling a calibration device to read the particle speed, shape, raindrop size and distribution, rain intensity and rainfall of raindrops as standards; meanwhile, a power supply is provided for the detected rainfall sensor, wherein the interface module 6 can be a part of the integrated controller, and the interface module 6 comprises a flow control interface, an auxiliary device interface, a calibration device interface and a detected instrument interface.
Because the calibrating device of the embodiment of the invention can calibrate the tipping bucket type rainfall sensor, the weighing type rainfall sensor, the potential energy rainfall sensor, the light attenuation rainfall sensor and the linear array rainfall sensor, in a specific embodiment, the calibrating processes of the tipping bucket type rainfall sensor, the potential energy rainfall sensor and the light attenuation rainfall sensor of the embodiment of the invention are as follows (it needs to be explained that the calibrating processes of other types of rainfall sensors can be obtained according to the following calibrating processes):
a tipping bucket type rainfall sensor calibration process:
(1) placing the tipping bucket rainfall sensor in a protective cover of a precision balance 33 placing plate, adjusting to be horizontal, and connecting a signal cable; (2) the computer test software sends a working instruction, and the system starts to work; (3) the flow control device receives a system instruction and injects quantitative water into the raindrop generator 22 according to a set program; (4) the raindrop generator 22 simulates precipitation and descends to a water collecting opening of the detected tipping bucket rainfall sensor through the experimental vertical shaft; (5) computer test software simultaneously acquires output data of the tipping bucket rainfall sensor and calibration equipment, and compares information such as rainfall intensity and rainfall; (6) computer test software displays the measurement error of the detected tipping bucket rainfall sensor and judges whether the tipping bucket is qualified or not; (7) the computer test software prints the certificate.
The potential energy method rainfall sensor calibration process comprises the following steps:
(1) placing the impact potential energy rainfall sensor in a protective cover of a precise balance 33 placing plate, adjusting the impact potential energy rainfall sensor to be horizontal, and connecting a signal cable; (2) the computer test software sends a working instruction, and the system starts to work; (3) the flow control device receives the system command and injects water into the raindrop generator 22 according to a set program; (4) the raindrop generator 22 and the auxiliary equipment simulate raindrops with different sizes according to system instructions, and the raindrops drop to a piezoelectric ceramic induction surface of the rainfall sensor based on the principle of impact potential energy through the experiment vertical shaft; (5) computer test software simultaneously collects the output data of the impact potential energy rainfall sensor and the calibration equipment, and compares the information such as the diameter of raindrops, the final speed of the raindrops, the rainfall intensity and the like; (6) and (4) displaying the measurement error of the rainfall sensor by the detected impact potential energy method through computer test software, and judging whether the rainfall sensor is qualified or not. (7) The computer test software prints the certificate.
The light attenuation method rainfall sensor calibration process comprises the following steps:
(1) placing the rainfall sensor with the light attenuation principle on a bottom plate of the bracket, adjusting the rainfall sensor to be horizontal, and connecting a signal cable; (2) the computer test software sends a working instruction, and the system starts to work; (3) the flow control device receives the system command and injects water into the raindrop generator 22 according to a set program; (4) the raindrop generator 22 and the auxiliary equipment simulate raindrops with different sizes according to system instructions, and the raindrops drop to the light sensing surface of the rainfall sensor based on the light attenuation principle through the experimental vertical shaft; (5) computer test software simultaneously collects data output by an impact potential energy rainfall sensor and a measurement system, and compares the data with information such as raindrop diameter, raindrop final speed, rainfall intensity and the like; (6) and (4) displaying the measurement error of the rainfall sensor by the detected impact potential energy method through computer test software, and judging whether the rainfall sensor is qualified or not. (7) The computer test software prints the certificate.
According to the calibrating device for the rainfall sensor, the control module controls the raindrop simulation module to simulate rainfalls in different rainfall potentials, and the rainfall calibration parameters measured by the calibration module are compared with the rainfall parameters measured by the detected rainfall sensor to obtain a calibrating result, so that the rainfall sensor is calibrated in two aspects of observing macroscopic and microscopic physical quantities, and the comprehensiveness of calibration is improved; the raindrop control device assists the raindrop generator to simulate raindrops with different diameters, the final speed of the raindrops with different diameters and key technologies of shapes and distribution of the raindrops with different diameters; the flow control equipment controls the rainfall intensity, the rainfall amount and the rainfall stability thereof, and the auxiliary equipment assists the raindrop generator to simulate the uniformity in the effective rainfall area; the calibration equipment measures the speed, the shape, the size and the distribution of raindrops, compares the measured value of the detected rainfall sensor, and obtains the measurement error of the detected instrument through calculation, thereby realizing the full-automatic verification test of the rainfall sensor and improving the efficiency of the verification test.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A calibrating device of a rainfall sensor is characterized by comprising: a control module, a raindrop simulation module and a calibration module, wherein,
the raindrop simulation module is connected with the external water injection device and used for simulating rainfall corresponding to the rainfall by using a preset simulation method according to a control signal sent by the control module;
the calibration module is used for measuring rainfall calibration parameters;
the control module is respectively connected with the detected rainfall sensor, the raindrop simulation module and the calibration module, is used for sending out a corresponding control signal according to the received preset rainfall parameters and sending the control signal to the raindrop simulation module, and the preset rainfall parameters comprise: rain intensity, rainfall, raindrop particle speed, shape, raindrop size and distribution; and comparing the rainfall calibration parameters with the rainfall parameters measured by the detected rainfall sensor to obtain a verification result.
2. The calibrating apparatus for a rainfall sensor according to claim 1, wherein the calibrating module measures rainfall calibration parameters corresponding to the sensor type according to the rainfall sensor type to be calibrated, and calibrates the rainfall sensor to be calibrated.
3. The calibrating device for a rainfall sensor of claim 1, further comprising:
the storage module is connected with the control module and used for storing historical verification results;
the display module is respectively connected with the control module and the storage module and is used for displaying rainfall calibration parameters, rainfall parameters and verification results in real time and calling historical verification results inquired by a user;
and the interface module is used for connecting the control module with the raindrop simulation module, the calibration module and the detected rainfall sensor.
4. The calibrating device for a rainfall sensor of claim 3, further comprising: the device comprises an experiment vertical shaft, a double-layer support, a protective cover and a plurality of laboratories, wherein a detected rainfall sensor is arranged in the protective cover, one laboratory is respectively arranged at the top and the bottom of the experiment vertical shaft, and the double-layer support and a control module are arranged in the laboratory at the bottom of the experiment vertical shaft.
5. The calibrating device for a rainfall sensor of claim 4, wherein the raindrop simulation module comprises: a raindrop control device and a raindrop generator, wherein,
and the raindrop control device is connected with the interface module, the external water injection device and the raindrop generator and is used for controlling the raindrop generator to simulate rainfall corresponding to the rainfall by utilizing a preset simulation method according to the control signal.
6. The calibrating device for a rainfall sensor of claim 4, wherein the calibration module comprises: a light beam sensor, an area-array camera and a precision balance, wherein,
the light beam sensor is arranged on the upper surface of the first layer of the double-layer bracket and is used for measuring the light intensity attenuation caused when the raindrop particles pass through the light beam and measuring the rainfall, the rain intensity, the speed, the shape, the size and the distribution parameters of the raindrop particles;
the area array camera is arranged on the lower surface of the first layer of the double-layer support and is used for measuring the light intensity attenuation caused when the raindrop particles pass through the light curtain and measuring the rainfall, the rainfall intensity, the speed, the shape, the size and the distribution parameters of the raindrop particles;
the precision balance is installed at the bottom of the protective cover, is arranged on the upper surface of the second layer of the double-layer support and is used for simulating the mass of raindrops through measurement and calculating the rainfall and the rain intensity.
7. The calibrating device for a rainfall sensor according to claim 5, wherein the raindrop generator is placed in a laboratory at the top of the experimental shaft and comprises: a water filling port, a water tank, a fixing plate and a needle head, wherein,
the water injection port is connected with the water tank and is connected with the raindrop control device through a conduit;
the needles are arranged at the bottom of the water tank and are arranged in a hexagonal array;
and the fixing plate is used for fixing the water filling port, the water tank and the needle head.
8. The calibrating device for a rainfall sensor according to claim 5, wherein the raindrop control device comprises: flow control equipment and auxiliary equipment, wherein,
the flow control equipment is arranged in a laboratory at the top of the experimental vertical shaft, is respectively connected with the interface module, the external water injection device and the raindrop generator, and is used for controlling the raindrop generator to simulate rainfall with corresponding rainfall intensity and rainfall amount by utilizing a preset simulation method according to the control signal;
and the auxiliary equipment is connected with the raindrop generator and is used for controlling the raindrop generator to simulate rainfall with corresponding raindrop particle speed, shape, raindrop size and distribution according to the control signal.
9. The calibrating apparatus for a rainfall sensor of claim 8, wherein the flow control device comprises: the filter, the pressure regulating pump and the electromagnetic valve are communicated in turn by conduction, the external water injection device, the filter, the pressure regulating pump, the electromagnetic valve and the water injection port are communicated in turn,
the filter is used for filtering impurities in water injected by the external water injection device;
the pressure regulating pump is connected with the control module and is used for controlling the rain intensity according to the control signal;
and the electromagnetic valve is connected with the control module and is used for controlling the rainfall according to the control signal.
10. The calibrating device for a rainfall sensor of claim 8, wherein the auxiliary equipment comprises: a vibration motor and a screen mesh, wherein,
the vibration motor is arranged at the top of the water tank, the screen is arranged at the bottom of the water tank, and the control module controls the raindrop generator to simulate raindrops with different sizes, shapes, sizes and distributions by controlling the operation parameters of the vibration motor and the operation parameters of the screen.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703072A (en) * | 2021-09-17 | 2021-11-26 | 温州大学 | Real-time rainfall intensity detection device based on video |
| CN113945999A (en) * | 2021-10-26 | 2022-01-18 | 安徽省大气探测技术保障中心 | Analog detection device and metering method for optical rainfall sensor |
| CN115327676A (en) * | 2022-10-17 | 2022-11-11 | 国机传感科技有限公司 | Rainfall sensor rain sensing area measuring device and measuring method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048331A (en) * | 1990-01-25 | 1991-09-17 | Mitsubishi Denki Kabushiki Kaisha | Continuous rainwater monitoring system |
| CN101630023A (en) * | 2008-07-14 | 2010-01-20 | 辽宁省气象信息与技术保障中心 | Calibrating device of field calibration rainfall sensor |
| CN202676935U (en) * | 2012-07-23 | 2013-01-16 | 中国长江电力股份有限公司 | Portable tipping bucket rain sensor automatic calibrating device |
| CN102928892A (en) * | 2011-08-09 | 2013-02-13 | 古峻峰 | Full-automatic calibrator for rain gauge |
| CN207528947U (en) * | 2017-05-18 | 2018-06-22 | 薛内川 | Rainfall titrates tester |
| CN208026889U (en) * | 2018-03-16 | 2018-10-30 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
| CN110275225A (en) * | 2018-03-16 | 2019-09-24 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
-
2020
- 2020-11-02 CN CN202011205266.1A patent/CN112415636B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048331A (en) * | 1990-01-25 | 1991-09-17 | Mitsubishi Denki Kabushiki Kaisha | Continuous rainwater monitoring system |
| CN101630023A (en) * | 2008-07-14 | 2010-01-20 | 辽宁省气象信息与技术保障中心 | Calibrating device of field calibration rainfall sensor |
| CN102928892A (en) * | 2011-08-09 | 2013-02-13 | 古峻峰 | Full-automatic calibrator for rain gauge |
| CN202676935U (en) * | 2012-07-23 | 2013-01-16 | 中国长江电力股份有限公司 | Portable tipping bucket rain sensor automatic calibrating device |
| CN207528947U (en) * | 2017-05-18 | 2018-06-22 | 薛内川 | Rainfall titrates tester |
| CN208026889U (en) * | 2018-03-16 | 2018-10-30 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
| CN110275225A (en) * | 2018-03-16 | 2019-09-24 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703072A (en) * | 2021-09-17 | 2021-11-26 | 温州大学 | Real-time rainfall intensity detection device based on video |
| CN113703072B (en) * | 2021-09-17 | 2024-02-20 | 温州大学 | Real-time rainfall intensity detection device based on video |
| CN113945999A (en) * | 2021-10-26 | 2022-01-18 | 安徽省大气探测技术保障中心 | Analog detection device and metering method for optical rainfall sensor |
| CN115327676A (en) * | 2022-10-17 | 2022-11-11 | 国机传感科技有限公司 | Rainfall sensor rain sensing area measuring device and measuring method |
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|---|---|
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