CN102565882A

CN102565882A - All-raininess ultrasonic rain gauge

Info

Publication number: CN102565882A
Application number: CN2010106076754A
Authority: CN
Inventors: 张新潮
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2012-07-11

Abstract

The invention relates to a high-resolution and high-precision all-raininess ultrasonic continuous automatic metering device for rainfall. The high-resolution and high-precision all-raininess ultrasonic continuous automatic metering device for the rainfall is innovatively combined with a rain gauge drain tub of the existing standard specification by applying a high-frequency ultrasonic transducer and a high-precision ultrasonic treater, thereby, the defect that a bigger error is generated because metering is performed by a tipping-bucket mechanical metering method under the condition of high raininess is changed, and the rainfall can be accurately metered under any raininess conditions; field unattended operation can be realized by adopting a full-automatic processing mode; a measuring system and a general packet radio service (GPRS) communication system are digitally combined, thereby, remote data transmission can be realized, and the measuring system can also be compatible with a remote terminal unit (RTU) telemetry terminal system to forecast real-time data under a unified clock command of a central station.

Description

Full raininess Ultrasonic Rain Gauge

Affiliated technical field

Product of the present invention relates to a kind of rainfall WT-MSR, especially heavy showers high resolution ultrasonic rainfall self-measuring device.

Background technology

The rainfall metering is one of important monitoring key element of the hydrology, meteorology and flood control early warning department, rainfall (quantity of precipitation): be meant in a certain period without the precipitation that evaporates, permeates, runs off, the degree of depth that on surface level, accumulates (water level).

The traditional rain gage that uses at present receives the restriction that history accurately measures technical merit, mainly is to use the tilting bucket rain of being made by mechanical principle to carry out the rainfall metering.Rain container is accepted the precipitation of certain area in screen pack flows into the tipping bucket of certain volume and (is scaled the 0.1mm/ bucket according to water level elevation/volume), and tipping bucket fills then to overturn behind the water water outwelled and causes the tongue tube action and write down electric impulse signal one time; Simultaneously, accept rainwater to the pouring that overturns, thus cumulative measurement and write down rainfall amount by the opposite side tipping bucket.But, because the wearing and tearing of mechanical component, unbalance; The inertia of mechanical motion; The gravitional force that rainwater produces; Factor affecting such as the tension force adhesion of water; More or less caused the inaccuracy of rainfall metering.In addition, shared time restriction of mechanical motion cycle the number of times of tipping bucket upset,, especially under the heavy showers state, or tipping bucket speed does not catch up with, and turns over and does not come over; Big Single Direction is come down in torrents, and causes tipping bucket to be failure to actuate; Bigger error in dipping can appear thus.

Summary of the invention

In order to overcome the deficiency of above-mentioned technology and application facet, the present invention provides a kind of full raininess aqueous medium Ultrasonic Rain Gauge, and this rain gage can satisfy the accurate measurement under any raininess situation.

The scheme that the present invention deals with problems is: on the basis of the rain container that does not change existing national standard standard; The diameter of containing the rain container is manufactured and the rain container equal diameters; Containing rain container bottom installation high-frequency ultrasonic transducer, the temperature measurement sensor is mended water discharging valve etc. automatically; Use aqueous medium ultrasound wave (0.1mm high precision) measuring instrument, the rainfall that rain container is accepted flows into the water level that forms in the container and directly measures.High-speed (air 340/s, the water 1500m/s) of ultrasonic acoustic pulse can measure in a second tens of times, precisely measures thereby satisfy under any high-intensity rainfall situation.

The invention has the beneficial effects as follows, under any heavy showers state that in weather extremes, occurs, can realize precisely observing and predicting of water rain condition, improve the flood control early warning, the effect of preventing and reducing natural disasters.

Fig. 1 uses sectional structure chart for the aqueous medium ultrasonic transducer

Fig. 2 uses sectional structure chart for the gas medium ultrasonic transducer

Specific embodiments

Rainwater is reduced in the rain container (1); Pass through screen pack (2) and often open down water solenoid valve (3), get into and contain rain bucket (4), form water level elevation line (13); Water level (13) is along with rainfall increases and the generation height change; Press the period standard of rainfall measuring requirement, after rain gage measurement processor (15) regularly receives the surveying work instruction, rain gage measurement processor (15), temperature sensor (9), ultrasonic transducer (6) beginning surveying work; The data of the water level elevation of measuring (13) and preceding one-shot measurement and storage are compared calculating, and water level added value that subsequently should the period is the output of rainfall Value Data.Thereafter, rain gage measurement processor (15) and ultrasonic transducer (6) continue uninterrupted surveying work, according to making judgment processing voluntarily to containing the interior water level of rain bucket (4) (13) situation;

If exceeding, waterline (13) sets the draining height; Rain gage measurement processor (15) control normally open solenoid valve (3) cuts out, and blocks and possibly cause error in dipping by ongoing rainfall entering steel ladle, opens normally closed solenoid valve (8) simultaneously and carries out draining; When waterline (13) is reduced to spacing drainpipe (7) mouth of pipe; Rain gage instrument (15) cuts out normally closed solenoid valve (8) with control, opens normally open solenoid valve (3) simultaneously, and rain gage measurement processor (15) quits work automatically.

If waterline (13) is lower than when setting minimum; Rain gage measurement processor (15) will be controlled unlatching moisturizing solenoid valve (12) and carry out moisturizing; When waterline (13) reaches the water level settings value; Rain gage measurement processor (15) is closed moisturizing solenoid valve (12), and rain gage measurement processor (15) quits work automatically.

Claims

1. Ultrasonic Rain Gauge amount device; Its principal character is by the Sheng rain container bottom device that a diameter equates up and down ultrasonic transducer and temperature sensor to be arranged, and a cover is stifled automatically, benefit, unwatering system, a rain container and a ultrasonic measurement processor of making by GB are formed;

2. according to claim 1, it is characterized in that containing the rain internal tank has a spacing drainpipe, is connected the normally open solenoid valve synchronous interaction of this normally closed drain solenoid valve and rain container bottom with the normally closed drain solenoid valve of containing the rain container bottom;

3. according to claim 1, the diameter dimension that it is characterized in that containing the measure portion of rain container equates with the standard rain container diameter dimension of making by GB;

4. according to claim 1, it is characterized in that containing hydrostatic pipe and ultrasonic transducer adapted that a band intercommunicating pore is housed in the rain container.