Calibrating device of field calibration rainfall sensor

Abstract

The invention relates to a calibrating device of a field calibration rainfall sensor. The calibrating device comprises an outer casing and a combined funnel, a counter and two water outlet pipes arranged inside the outer casing, wherein the top surface of the outer casing is provided with a great/small rain intensity water injection hole capable of simulating rain water flow speed, a reset button inlaid with a counter liquid crystal display screen and the counter as well as a conducting wire plug jack; the upper opening edge of the combined funnel is fixedly connected with the inner side circumference of the top surface of the outer casing; the inside of the combined funnel is provided with a middle clapboard; the upper end of the middle clapboard is propped on the inner side of the top surface of the outer casing, while the lower end is positioned on the bottom of the combined funnel; the middle clapboard and the combined funnel are formed into an integrated structure; and the bottom of the combined funnel is respectively provided with two water outlet pipes simulating great/small rain intensity flow speed, and the two water outlet pipes simulating the rain intensity flow speed and the combined funnel are formed into an integrated structure. The calibrating device has the advantages that the device has scientific design, compact structure and stable and reliable technical performance and can carry out field calibration of an ombrometer. Therefore, the calibrating device can be widely used in nation-wide observatories, hydrological stations, armies and scientific research institutions to carry out the field calibration of the rainfall sensors.

Description

technical field [0001] The invention relates to a calibrator for on-site calibration of measuring instruments, in particular to an on-site calibration device for a rain sensor that can visually display the count value of a rain sensor on site, reduce human operation errors, and is very convenient to carry and use. Background technique [0002] With the development of science and technology and the continuous improvement of people's living standards and quality of life, people are paying more and more attention to weather conditions, and virtually put forward higher and stricter requirements for the work of meteorological departments. Just take the topic of "rainfall" as an example to illustrate the importance of precision measurement and regular calibration. The rainfall data from daily monitoring can be accumulated and calculated to calculate the recent and future rainfall status, weather change trends and the possibility of flood disasters It provides necessary and credibl...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the current problem that the rain sensor cannot be calibrated on the spot, and to provide a simple operation, easy to carry, fixed rain intensity, on-site display readings, and on-site calibration of the rain gauge at any time. Calibration, in line with the accuracy level requirements, can be widely used on-site calibration rain sensor calibration device

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