A self-driven rain gauge based on a triboelectric nanogenerator

Abstract

The invention discloses a self-driven rain gauge based on a friction nanometer generator. The rain gauge comprises a cylinder, a diversion funnel, a funnel nozzle, a tipping bucket and a base; the diversion funnel is connected to the lower end of the cylinder; the base is positioned below a drip needle; two drainage grooves are symmetrically formed in the base; the two drainage grooves are separated by a ridge beam; the tipping bucket is hinged between two hinged brackets on a ridge beam through a rotating shaft at the lower end of a middle part; the interior of the tipping bucket is divided into a left bucket groove and a right bucket groove through a triangular partition plate; the sharp corner of the triangular partition plate faces upwards; the two bucket grooves are located above thetwo drainage grooves respectively, bucket groove stop stand columns are arranged at the ends, away from the ridge beam, in the two drainage grooves, rainwater of the drip needles drips into the bucketgrooves with one sides tilting upwards firstly, and friction nanometer generators are arranged on the inner bottom walls or / and the outer bottom walls or / and the bucket groove stop stand columns of the bucket grooves. In combination with the friction nanometer power generation technology, the mechanical energy of rainwater falling is converted into an electric signal, and an automatic counting function without a switching circuit can be achieved.

Description

technical field [0001] The invention relates to a self-driven rain gauge based on a frictional nanogenerator, which belongs to the field of metering equipment. Background technique [0002] Precipitation is a meteorological element, and the observation of precipitation is of great significance to the observation of meteorology, hydrology, ocean, environment, daily life, and transportation. A rain gauge (or rain gauge, rain gauge) is an instrument used by meteorologists and hydrologists to measure the amount of precipitation in an area over a period of time. At present, the common types of rain gauges include tipping bucket rain gauges and siphon rain gauges. The tipping bucket rain gauge includes a tipping bucket, and two tipping buckets are separated by a partition plate in the tipping bucket. In a symmetrically balanced tipping bucket, under normal circumstances, the center of gravity will deviate from the support point due to unstable balance. When the rainwater flows in...

AI Technical Summary

Problems solved by technology

Although the structure is simple and the counting is accurate, the tipping bucket rain gauge based on the dry reed switch needs an external power supply to provide auxiliary energy, which will cause problems such as battery replacement or charging.

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