Detection apparatus of rainfall sensor

Abstract

The invention provides a detection apparatus of a rainfall sensor. The detection apparatus being composed of a system work loop and a detection system is characterized in that the system work loop consists of an input port, an output port, a peristaltic pump, a first solenoid valve, a second solenoid valve, a third solenoid valve, a first standard container, a second standard container, a first liquid level sensor, a second liquid level sensor, a third liquid level sensor, a fourth liquid level sensor, a fifth liquid level sensor and a sixth liquid level sensor. The liquid level sensors are arranged at water inlets and outflow ports of the standard containers respectively; and the first solenoid valve, the second solenoid valve, and the third solenoid valve are arranged between the input port and water inlets of the first standard container and the second standard container. The detection apparatus has the following beneficial effects: the cost is low; automation is realized; performances are stable; value traceability is accurate; the flow speed can be controlled; and the detection efficiency of the rainfall sensor can be improved substantially.

Description

technical field [0001] The invention belongs to detection equipment, in particular to a precipitation sensor detection device. Background technique [0002] Traditional rainfall detection systems at home and abroad are divided into manual and automatic methods. The manual method uses a standard glass bottle as the measurement standard, and controls the ball valve to add liquid through manual visual inspection. The automatic method uses a liquid adder. Various methods have the following defects: [0003] Manual method: The capacity of the standard glass bottle is fixed. For example, when detecting different rainfall, different standard glass balls need to be replaced as the capacity standard. Standard glass balls need to be submitted to the national metrology institution for inspection regularly before they can be used as standard containers. They cannot be calibrated by themselves, and the containers are made of glass and are easily damaged during use or inspection and trans...

AI Technical Summary

Problems solved by technology

[0006] Automatic mode: In this mode, the liquid doser is used as the standard instrument for detection. The liquid doser uses a 50ml standard bottle, and the liquid is output through a piston. Due to the small capacity of the standard bottle, there are many water absorption processes during the detection process, and the water absorption process will Affects the actual maximum rain intensity measurement. With the gradual increase of heavy rain and disaster weather at home and abroad, heavy rain intensity may be detected in the future. The flow rate of the liquid adder is not greater than 150ml / min, and the flow rate has limitations.

The dosing device is imported equipment, which has problems such as high purchase price and long delivery cycle

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