CN106772702A - One kind is based on quality formula rainfall gauge automatic calibrator and calibration method - Google Patents
One kind is based on quality formula rainfall gauge automatic calibrator and calibration method Download PDFInfo
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- CN106772702A CN106772702A CN201710172327.0A CN201710172327A CN106772702A CN 106772702 A CN106772702 A CN 106772702A CN 201710172327 A CN201710172327 A CN 201710172327A CN 106772702 A CN106772702 A CN 106772702A
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Abstract
Quality formula rainfall gauge automatic calibrator and calibration method are based on the present invention relates to one kind, using integrated distributed framework, it is made up of console and several calibrating terminal works platform cascades, the quality of water supply module reclaimed water is weighed using the electronic balance of periodic verification in real time, the quality of the water being delivered in calculating water supply module in calibrating container, as quality standard value；By pure water density table for reference, the mass value for examining and determine container reclaimed water is scaled volume, divided by rain open area is held, obtains rainfall standard value；Using peristaltic pump set flow velocity will examine and determine container in water, be all delivered to tested rainfall gauge；Rainfall standard value is compared with tested rainfall gauge indicating value, calibrating/calibration result is obtained.Technique effect is that by examining and determine various udometric automatic gauge, and with performance is good, efficiency high, the comprehensive advantage of low cost, popularizing application prospect is very wide.
Description
Technical field
It is more particularly to a kind of to be based on quality formula rainfall gauge automatic Verification the present invention relates to a kind of rainfall gauge automatic calibrator
Device and calibration method.
Background technology
Rainfall is one of main project of meteorological observation.At present, the rainfall gauge that China's Primary Climatological Stations are used mainly is wrapped
Include cylinder type rain gauge, siphon rainfall recorder, tipping-bucket rain-gauge, weighing type rain gauge etc., wherein tipping-bucket rain-gauge application
It is the most extensive.Restricted by observation procedure, rainwater splashes the extraneous factors such as mistake, evaporation and wind and easily causes rainfall observed result deviation,
The process such as produce, transport, installing, using in rainfall gauge simultaneously and also exist and holding the mouth of a river tolerance, error that gets wet, starting error, non-aqueous
The general character errors such as flat error, measurement of inductance error, therefore periodic calibration need to be carried out to rainfall gauge, to ensure the standard of its measurement result
True property.
Currently, China mainly uses " capacity " formula Metrology Support scheme.Meteorological phenomena measurement technical body use " capacity ball " or
" charger " is examined and determine graduated cylinder, siphon, tipping bucket, the various forms of rainfall gauges such as weigh as standard.Traditional capacity
Ball rainfall gauge calibrating installation has the advantages that simple structure, steady in a long-term, with low cost, but there is also artificial operating error
Greatly, the problems such as inefficiency, less robust, unitary function, non-constant raininess.For capacity ball rainfall gauge calibrating installation
Deficiency, domestic meteorological phenomena measurement technical body generally using automaticity charger formula rainfall gauge calibrating installation higher, but
In actual use, problems be there is also：One is single liquid feeding full scale only 50mL, there is volume error accumulation in calibrating
Problem；Two is, because liquid feeding is discontinuous, water flood operations need to be repeated, and the operating efficiency of device is limited to a certain extent；Three are
Because the mechanism for possessing corresponding calibrating/rated capacity is less, high cost of tracing to the source, cycle are long；Four are limited by know-why, and error is come
Source is more complicated, it is difficult to sets up effective technology and verifies means, and the element task technical difficulty such as standard set-up is set up, holding is high, work
Work amount is big.Udometric extensive laying and its current demand ensured to measurement verification, innovation, hair to rainfall gauge calibrating installation
Exhibition and construction propose new demand.
The content of the invention
In view of the problem that prior art is present, the invention provides one kind based on quality formula rainfall gauge automatic calibrator and
Calibration method, can realize to various udometric automatic Verification, and calibrating installation is using " integrated-distribution " formula framework, to make
With Labview graphic programming instruments, custom design goes out a set of possesses automatic calibration, fault diagnosis, automatic production certificate etc.
A series of system of functions, concrete technical scheme is, one kind is based on quality formula rainfall gauge automatic calibrator, including console and
Several calibrating terminal works platforms, described console includes Weighing module, water supply module, point water pump, controller module, serial ports
Server, control end drain module, wherein, the electronic balance including periodic verification, weighing container, water temperature are sensed Weighing module again
Device and photoelectric liquid-level switch, controller module include industrial computer, relay serial ports controller, humiture collection device, switch electricity again
Source,
Water supply module includes magnetic valve, water purifier, water storage barrel and supply-water pump, described calibrating terminal works platform include shunt valve,
Calibrating container, calibrating pump, data acquisition module, calibrating end drain module, it is characterised in that：By console and several calibratings eventually
End workbench is cascaded by serial server and constitutes integrated-distributed structure/architecture, and the controller module of console is whole with calibrating respectively
Hold the shunt valve of workbench, calibrating pump, data acquisition module unidirectionally to connect, tested rainfall gauge respectively with data acquisition module, inspection
Fixed end drain module is unidirectionally connected, and shunt valve is unidirectionally connected with reserved expansion interface, and Switching Power Supply is powered for apparatus of the present invention；Control
Platform processed be connected as Weighing module and controller module be bi-directionally connected, through a point water pump, calibrating terminal works platform and control end draining mould
Block is unidirectionally connected, and controller module is unidirectionally connected with water supply module, point water pump, calibrating terminal works platform respectively, controller module
It is bi-directionally connected with serial server, water supply module is unidirectionally connected by Weighing module with a point water pump；The platform connection of calibrating terminal works
For shunt valve, calibrating container, calibrating pump, tested rainfall gauge are unidirectionally connected successively；Water supply module includes magnetic valve, water purifier, storage
Bucket and supply-water pump, water storage barrel are connected through supply-water pump with water purifier, and water purifier is supplied water by magnetic valve to Weighing module.
Described point water pump uses step motor type peristaltic pump, application traffic shaping modes.
Calibration method is comprised the following steps,（One）Hand inspection modules are with the presence or absence of abnormal, it is ensured that contained in water butt
There is clear water, after confirmation is errorless, electricity on calibrating installation opens controller power source, into calibrating software；
（Two）Into calibrating software, input operation personal information, into self-check of device interface, device can be automatically performed to overall
Communication self-inspection, after the completion of enter to examine and determine interface；（Three）The accredited rainfall gauge relevant information of input, according to software prompt according to JJG
（It is meteorological）005-2015《Automatic weather station tipping bucket rain gauge》Whether code, the tested rainfall gauge outward appearance of first range estimation is qualified,
Then mouth of a river diameter is held using the tested rainfall gauge of supporting vernier caliper measurement, the numerical value after measurement is inserted into corresponding form
In, after the completion of enter measurement error examine and determine interface；（Four）Software can install the calibrating point automatic Verification of vertification regulation setting, calibrating
Before, calibrating installation can automatically carry out overall profit pipe work, to ensure that calibrating installation pipeline interior conduit is moistened, to reduce error,
Improve the degree of accuracy of calibrating；
（Five）After completing profit pipe work, calibrating installation measures error testing work, and each calibrating point will according to vertification regulation
Ask calibrating three times；（Six）After the completion of measurement error calibrating, record is detected rainfall gauge data message to software automatically, is required according to prompting
Generation probation redport；（Seven）For probation redport according to office of the corresponding province rainfall gauge calibration certificate masterplate for providing, generation calibrating card
Book, printing certificate is carried out according to prompting；（Eight）Operating personnel can judge whether tested rainfall gauge is qualified, such as sentences according to probation redport
Disconnected qualified, the rainfall gauge that will have been examined and determine is put in storage in case using；If judgement is unqualified, it is required that tested rainfall gauge depot repair.
The solution have the advantages that, measurement technology function admirable, transmission of quantity value uncertainty ratio is much better than 1:3, calibrating
The uncertainty of measurement of result is negligible；The error of the introducings such as artificial operation, ambient influnence is negligible；Calibration operation efficiency high,
Rainfall, raininess automatically regulate and control；Standard, tested rainfall gauge automatic data collection, storage and treatment；Record, certificate and report
Automatically generate and printing；Configuration freedom and flexibility, can configure separate unit or many calibrating terminals, and calibrating terminal also can independent operating；It is logical
Letter interface has both wire/wireless communication function, can realize that the device is in Meteorological Field to various udometric automatic Verification
Extensive use, will be greatly improved the Aulomatizeted Detect and safeguard level of Meteorological Field.
Brief description of the drawings
Fig. 1 is integrated-distributed structure/architecture figure of the invention；
Fig. 2 is that console of the invention connects block diagram；
Fig. 3 is calibrating terminal works platform connection block diagram of the invention；
Fig. 4 is water supply module connection figure of the invention；
Fig. 5 is Weighing module connection figure of the invention；
Fig. 6 is structure front view of the invention；
Fig. 7 is controller module top view of the invention；
Fig. 8 is structure axonometric drawing of the invention；
Fig. 9 is verifying process flow figure of the invention.
Specific embodiment
In order to further illustrate the present invention technological means and its effect taken, with reference to preferred embodiment and its
Accompanying drawing is described in further detail to a kind of rainfall automatic calibrator based on mass measurement of the present invention.
As shown in Fig. 1 ~ 8, a kind of rainfall automatic calibrator console 2 based on mass measurement examines and determine terminals with several
Workbench 6, described console 2 is connected as the electronics as periodic verification from Sai Duolisi 6010-1CN precision electronic balances
Balance 16 is located at bottom, and weighing container 15 is placed with the scale pan, has a dividing plate in the top of weighing container 15, for installing Inlet and outlet water
Pipe, cooling-water temperature sensor 14 and photoelectric liquid-level switch, dividing plate are fixed on rack, are not contacted with weighing container 15, it is ensured that periodically inspection
Fixed electronic balance 16 does not influence weighing result when weighing.
Water supply module 11 is mainly used in the purification water needed for providing calibration operation, is connected as water storage barrel 19 through supply-water pump 20
It is connected with water purifier 18, after the connection controller of magnetic valve 21 of water purifier 18 sends water supply order, supply-water pump 20 brings into operation, electromagnetism
Valve 21 is opened, and the water in water storage barrel 19 is entered in water purifier 18 by supply-water pump 20, after filtering that water purification is straight by a two-way
Three-way electromagnetic valve 21 enters 12 in weighing container, and the mass change of the real-time detection water of electronic balance 16 of periodic verification treats that water is added to
After setting quality, supply-water pump 20 is simultaneously closed off with magnetic valve 21, waterman completes, the sewage that water purifier 18 leaves after filtering
Entered in the pipeline of control end drain module 12 by sewage mouth, outside discharge calibrating installation.
Dividing water pump 9 is used to quantitatively send water to the calibrating container 8 in calibrating terminal works platform 6.
The water examined and determine in container 8 is delivered to tested rainfall by calibrating pump 7 for realizing raininess control function by setting flow velocity
Meter rain container/sensor, therefore the BT-300CA type step motor type peristaltic pumps of Jie Heng companies production are used, selecting flexible pipe model
Under the conditions of 25#, its range of flow is（0.05~500）ML/min can be realized（0.1~10）The raininess simulation of mm/min,
When carrying out 30mm rainfall calibrating point water, often examine and determine container 8 and add water time no more than 2min, while meeting point water and a calibration operation.
Controller module 4 is used for the supply-water pump 9 supporting to calibrating installation, calibrating pump 7, shunt valve 10 etc. carries out switch control
System, at the same by humiture collection device 25 can gather cooling-water temperature sensor 14, numerical value, by the upper computer software in industrial computer 23
Calculate, water capacity is modified in real time.
When calibrating installation water supply module 11 adds water liquid level to photoelectric liquid-level switch 17 to weighing container 15, photoelectric level is opened
After pass 17 touches liquid level, controller module 4 is transferred data to, by the host computer of the industrial computer 23 in controller module 4
Software, instruction is sent to relay serial ports controller 24, and control water supply module 11 is closed into wetting system, prevents the electricity of periodic verification
Sub- balance 16 crosses range, realizes the purpose of the electronic balance 16 of protection periodic verification.
Switching Power Supply 22 selects bright latitude _ SP-320-12 type Switching Power Supplies, is powered for control module 4 and corollary equipment
Need；Industrial computer 23 uses Z155-2L-6C type fan-free industrial computers, for being used as master control platform, embeds supporting soft
Part, by operating personnel by operating software, it is possible to examine and determine in real time tested equipment；Relay serial ports controller 24 is used
The road serial ports relay control panel of KAC2116S types 16, the break-make for controlling the switching value equipment such as supply-water pump 9, shunt valve 10；Temperature
Humidity collector 25 uses AOSONG_YL-WD-2 type humiture collection modules, for ambient temperature and humidity, water temperature to be passed through
Serial ports is by the incoming industrial computer 23 of data.
Serial server 3 is the extension serial communication interface quantity of industrial computer 23, realizes industrial computer 23 with a point water pump 9, calibrating
Communication connection between the features/components such as pump 7, counter and the tested rain sensor of serial ports output type, using network
Distributed data acquisition solution, from 5650 types of Moxa NPort, 16 mouthfuls of RS232/422/ of band 2KV Phototube Couplings protection
485 serial servers are convenient to transmit data and the system integration in serial ports and the network equipment.
The moisture that shunt valve 10 is used to convey 2 points of water pumps 9 of console to come is fitted in each calibrating container 8, shunt valve
The 10 ZD direct acting piston type two-bit triplet solenoid valve for water produced from Chongqing Dun Ming Co., Ltds, it uses direct acting dual Piston
Valve core structure, valve element and valve body use 304 stainless steel makings, with movement response is fast, corrosion resistance and good, reliability it is high etc.
Feature.
Calibrating container 8 is custom component, is manufactured using high transparency boron use for laboratory glass material high, volume about 1.2L, energy
Enough meet 200mm and hold calibrating needs of the rain mouthful rainfall gauge when 30mm rainfall is set.The calibrating bottom of container 8 is designed using V-type, interior
Portion coats strong dewatering nano material, can to greatest extent reduce residual water error, improves the degree of accuracy of calibrating installation.
Calibrating pump 7 is used and divides the identical peristaltic pump of water pump 9, for realizing raininess control function, will be examined by setting flow velocity
Water in constant volume device is delivered to tested rainfall gauge.
Data acquisition module 5 tests needs to meet tested rainfall gauge switching signal acquisition counter and tipping bucket poised state,
From the establishment that embedded software is carried out based on the iHMI43 type Intelligent liquid crystal modulars that master chip is STM32F103, its work(
Can count can display counting value（Maximum 99999）And impulse waveform and time twice recently, with count start and stop, count reset with
And the control function such as remote lock.Data acquisition module（5）Led to the industrial computer 23 in controller module 4 by serial ports
News, the incoming industrial computer 23 of tested udometric data that will can be collected realizes data acquisition function.
Drainage system is made up of control end drain module 12 with calibrating end drain module 13.Calibrating end drain module 13 is used for
Water after tested rainfall gauge is examined and determine is collected, and is imported water discharge device in the floor drain of laboratory by pipeline；Control end is arranged
The sewage that water module 12 is used for after water purifier 18 is filtered is imported water discharge device in the floor drain of laboratory by pipeline；Simultaneously
Control end drain module 12 can be combined with calibrating end drain module 13, the water for examining and determine end drain module 13 passes through control end
Drain module 12 is imported in the floor drain of laboratory in the lump.
As shown in figure 9, calibration method is as follows：
（One）Hand inspection modules are with the presence or absence of abnormal, it is ensured that clear water is filled in water butt 17, after confirmation is errorless, calibrating dress
Electricity is put, the power supply of controller module 4 is opened, into calibrating software；
（Two）Into calibrating software, input operation personal information, into self-check of device interface, device can be automatically performed to overall
Communication self-inspection, after the completion of enter to examine and determine interface；
（Three）The accredited rainfall gauge relevant information of input, according to software prompt according to JJG（It is meteorological）005-2015《Automatic weather station
Tipping bucket rain gauge》Whether code, the tested rainfall gauge outward appearance of first range estimation is qualified, then uses supporting vernier caliper measurement
Tested rainfall gauge holds mouth of a river diameter, during the numerical value after measurement inserted into corresponding form, after the completion of enter measurement error and examine and determine boundary
Face；
（Four）Software can install the calibrating point automatic Verification of vertification regulation setting, and before calibrating, calibrating installation can carry out whole automatically
Body profit pipe work, to ensure that calibrating installation pipeline interior conduit is moistened, to reduce error, improves the degree of accuracy of calibrating；
（Five）After completing profit pipe work, calibrating installation measures error testing work, and each calibrating point will according to vertification regulation
Ask calibrating three times；
（Six）After the completion of measurement error calibrating, record is detected rainfall gauge data message to software automatically, and generation inspection is required according to prompting
Fixed report；
（Seven）For probation redport according to office of the corresponding province rainfall gauge calibration certificate masterplate for providing, generation calibration certificate, according to carrying
Showing carries out printing certificate；
（Eight）Operating personnel can judge whether tested rainfall gauge is qualified, and it is qualified such as to judge, the rain that will have been examined and determine according to probation redport
Gauge is put in storage in case using；If judgement is unqualified, it is required that tested rainfall gauge depot repair.
Calibration operation is completed.
Principle
The Chief technology that calibrating installation development need to be solved is the accurate reproduction of rainfall value.Index is developed according to calibrating installation
It is required that：System can be preset according to user or be input into real time, and by measuring and controlling water controller effluent characteristics, reproduction is produced
Accurate standard rainfall value, rainfall control error criterion requirement is not more than ± 0.1mm.In point water pump 9 in calibrating terminal
When calibrating container 8 send water, water quality real-time change in weighing container 15, the measurement result of electronic balance 16 of accurate periodic verification is defeated
Go out time interval more long（1~2）S, and because of the density temperature influence of water, rainfall accurately controls difficulty larger.
Problem is accurately controlled to solve rainfall, following measures are mainly taken：
（One）Water pump is divided to use step motor type peristaltic pump, application traffic shaping modes while ensureing to divide water efficiency, to the greatest extent may be used
Rainfall control error can be reduced.When initial, point water pump as big flow pattern is set, to improve a point water efficiency, reduce water-separating time；
During close to rainfall setting calibrating point corresponding mass, setting point water pump 9 is low discharge pattern, effectively reduces rainfall control error.
（Two）Before dividing water, when calculating the setting rainfall calibrating corresponding standard quality value of point, temperature adjustmemt treatment is carried out.Pass through
The measurement of cooling-water temperature sensor 14 weighs the temperature of component reclaimed water, looks into calculation《ITS90 international temperature scale pure water density table for reference》, obtain current
At a temperature of water density value；Point value and the product for holding rain open area and watertight angle value are examined and determine using rainfall, as the quality that adds water
Control targe value, further reduces rainfall control error.
Using " integrated-distribution " formula framework, it is made up of console 2 and several cascades of calibrating terminal works platform 6, controller
Module 4 is used for centralized Control, is capable of achieving the parallel control to many set calibrating terminal works platforms 6 and Data Centralized Processing；Calibrating is eventually
End workbench 6 can complete independently rainfall value testing the process that adds water, the dry-reed tube switch amount letter of the tested rainfall gauge output of collection
Breath etc..
The quality of the reclaimed water of water supply module 11 is weighed using the electronic balance 16 of periodic verification in real time, in calculating water supply module 11
The quality of the water being delivered in calibrating container 8, as quality standard value；By pure water density table for reference, the reclaimed water of container 8 will be examined and determine
Mass value be scaled volume, divided by rain open area is held, obtain rainfall standard value；Set flow velocity and will examine and determine using peristaltic pump and hold
Water in device 8, is all delivered to tested rainfall gauge；Rainfall standard value is compared with tested rainfall gauge indicating value, examined and determine/
Calibration result.
Claims (3)
1. it is a kind of to be based on quality formula rainfall gauge automatic calibrator, including console（2）With several calibrating terminal works platforms
（6）, described console（2）Including Weighing module（1）, water supply module（11）, point water pump（9）, controller module（4）, serial ports
Server（3）, control end drain module（12）Wherein, Weighing module（1）Include the electronic balance of periodic verification again（16）, weigh
Container（15）, cooling-water temperature sensor（14）And photoelectric liquid-level switch（17）, controller module（4）Include industrial computer again（23）, relay
Device serial ports controller（24）, humiture collection device（25）, Switching Power Supply（22）, water supply module（11）Including magnetic valve（21）, it is net
Hydrophone（18）, water storage barrel（19）And supply-water pump（20）, described calibrating terminal works platform（6）Including shunt valve（10）, calibrating hold
Device（8）, calibrating pump（7）, data acquisition module（5）, calibrating end drain module（13）,
It is characterized in that：By console（2）With several calibrating terminal works platforms（6）By serial server（3）Cascade composition
" integrated-distribution " formula framework, console（2）Controller module（4）Respectively with calibrating terminal works platform（6）Shunt valve
（10）, calibrating pump（7）, data acquisition module（5）Unidirectional connection, tested rainfall gauge respectively with data acquisition module（5）, calibrating end
Drain module（13）Unidirectional connection, shunt valve（10）Unidirectionally it is connected with reserved expansion interface, Switching Power Supply（22）For the present apparatus is supplied
Electricity；Wherein console（2）It is connected as Weighing module（1）With controller module（4）Be bi-directionally connected, through a point water pump（9）, calibrating terminal
Workbench（6）With control end drain module（12）Unidirectional connection, controller module（4）Respectively with water supply module（11）, point water pump
（9）, calibrating terminal works platform（6）Unidirectional connection, controller module（4）With serial server（3）It is bi-directionally connected, water supply module
（11）By Weighing module（1）With a point water pump（9）Unidirectional connection；Calibrating terminal works platform（6）It is connected as shunt valve（10）, calibrating
Container（8）, calibrating pump（7）, tested rainfall gauge unidirectionally connects successively；Water supply module（11）Including magnetic valve（21）, water purifier
（18）, water storage barrel（19）And supply-water pump（20）, water storage barrel（19）Through supply-water pump（20）With water purifier（18）It is connected, water purifier（18）
By magnetic valve（21）To Weighing module（1）Supply water.
2. quality formula rainfall gauge automatic calibrator is based on as claimed in claim 1, it is characterised in that：Described point water pump
（9）Using step motor type peristaltic pump, application traffic shaping modes.
3. using the calibration method based on quality formula rainfall gauge automatic calibrator described in claim 1, it is characterised in that：Inspection
The method of determining is comprised the following steps,
（One）Hand inspection modules are with the presence or absence of abnormal, it is ensured that clear water is filled in water butt, after confirmation is errorless, calibrating installation
Upper electricity, opens controller power source, into calibrating software；
（Two）Into calibrating software, input operation personal information, into self-check of device interface, device can be automatically performed to overall
Communication self-inspection, after the completion of enter to examine and determine interface；
（Three）The accredited rainfall gauge relevant information of input, according to software prompt according to JJG（It is meteorological）005-2015《Automatic weather station
Tipping bucket rain gauge》Whether code, the tested rainfall gauge outward appearance of first range estimation is qualified, then uses supporting vernier caliper measurement
Tested rainfall gauge holds mouth of a river diameter, during the numerical value after measurement inserted into corresponding form, after the completion of enter measurement error and examine and determine boundary
Face；
（Four）Software can install the calibrating point automatic Verification of vertification regulation setting, and before calibrating, calibrating installation can carry out whole automatically
Body profit pipe work, to ensure that calibrating installation pipeline interior conduit is moistened, to reduce error, improves the degree of accuracy of calibrating；
（Five）After completing profit pipe work, calibrating installation measures error testing work, and each calibrating point will according to vertification regulation
Ask calibrating three times；
（Six）After the completion of measurement error calibrating, record is detected rainfall gauge data message to software automatically, and generation inspection is required according to prompting
Fixed report；
（Seven）For probation redport according to office of the corresponding province rainfall gauge calibration certificate masterplate for providing, generation calibration certificate, according to carrying
Showing carries out printing certificate；
（Eight）Operating personnel can judge whether tested rainfall gauge is qualified, and it is qualified such as to judge, the rain that will have been examined and determine according to probation redport
Gauge is put in storage in case using；If judgement is unqualified, it is required that tested rainfall gauge depot repair.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172327.0A CN106772702B (en) | 2017-03-22 | 2017-03-22 | Automatic rain gauge calibrating device and method based on quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710172327.0A CN106772702B (en) | 2017-03-22 | 2017-03-22 | Automatic rain gauge calibrating device and method based on quality |
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| CN106772702B CN106772702B (en) | 2023-03-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239813A (en) * | 2018-10-12 | 2019-01-18 | 水利部交通运输部国家能源局南京水利科学研究院 | The more meter characteristic calibration methods and device of tipping-bucket rain-gauge |
| CN109269680A (en) * | 2018-11-16 | 2019-01-25 | 中环天仪（天津）气象仪器有限公司 | A kind of device and method for multichannel temperature calibrating |
| CN109884973A (en) * | 2019-02-28 | 2019-06-14 | 宁波明兮信息技术有限公司 | A kind of method of multi-channel control shared components |
| CN110275225A (en) * | 2018-03-16 | 2019-09-24 | 北京创信恒通科技有限公司 | Udometric calibrating instrument |
| CN111708105A (en) * | 2020-07-16 | 2020-09-25 | 南京信息工程大学 | On-line calibration system for rainfall sensor based on peristaltic pump |
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