Piezoelectric rain gauge

A measuring device and piezoelectric technology, applied in the field of piezoelectric, can solve the problems of abnormal siphon, manual maintenance and cleaning, blocking and other problems, and achieve the effect of automatic observation

Active Publication Date: 2016-06-15
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The siphon rain gauge uses the float to move vertically with the rise of the water surface, and drives the self-recording pen to move on the self-recording paper to record the total amount of precipitation through an appropriate mechanism. It is suitable for manual observation, but when the siphon rain gauge is used in the north, it is easy to Under "mud rain", the siphon is not normal after the siphon is dirty
Tipping bucket rain gauges and weighing rain gauges will also be affected by dust during long-term use, causing clogging problems
Therefore, conventional rainfall measuring devices need manual maintenance and cleaning on a regular basis

Method used

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  • Piezoelectric rain gauge
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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides a piezoelectric rainfall measurement device. The piezoelectric rainfall measurement device comprises a hollow supporting body, a sound detection sensitive film, a raindrop contact film and a measurement unit, wherein a supporting cavity is formed in the hollow supporting body, the upper end and the lower end of the supporting cavity are open, the sound detection sensitive film comprises, at least, a piezoelectric material film covering an opening formed in upper end of the supporting cavity, the raindrop contact film is made from a material capable of conducting sound and fixed above the sound detection sensitive film, a sound cavity is formed between the raindrop contact film and the sound detection sensitive film, and the measurement unit is electrically connected to an upper electrode and a lower electrode of the sound detection sensitive film through two lead wires. The piezoelectric rainfall measurement device recognizes the momentum of raindrop pulses by recognizing the amplitude of sound wave pulses, can obtain rainfall, rainfall intensity and other parameters on the basis that the raindrop quantity and raindrop size are recognized and is a novel rainfall sensor.

Description

technical field [0001] The invention relates to the field of piezoelectric technology, in particular to a piezoelectric rain gauge. Background technique [0002] The rainfall measuring device is suitable for meteorological stations (stations), hydrological stations, agriculture and forestry, national defense and other relevant departments to remotely measure the amount of liquid precipitation, precipitation intensity, and the start and end time of precipitation. It is used for flood control, water supply dispatching, hydrological automatic forecasting system and automatic field forecasting station for the purpose of hydrological management of power station reservoirs. [0003] There are three types of conventional precipitation recording instruments: weighing type, tipping bucket type and siphon type. The siphon rain gauge uses the float to move vertically with the rise of the water surface, and drives the self-recording pen to move on the self-recording paper to record the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/14
CPCG01W1/14
Inventor 杜利东赵湛张萌颖吴少华方震
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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