Accumulated snow layer density measuring device

A measuring device and layer density technology, applied in the field of measuring tools, can solve the problem of poor accuracy of the measurement results of snow layer density, and achieve the effect of small error

Pending Publication Date: 2022-04-15
NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Poor accuracy of snow density measurements

Method used

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  • Accumulated snow layer density measuring device
  • Accumulated snow layer density measuring device
  • Accumulated snow layer density measuring device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0037] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides an accumulated snow layer density measuring device which comprises an outer cylinder assembly and an inner cylinder assembly, the outer cylinder assembly comprises an outer cylinder body, two first cut-off plates and two second cut-off plates, and two first cut-off openings are formed in the cylinder wall of the outer cylinder body; the two first cut-off plates are used for sealing the two ends of the outer barrel correspondingly. The two first cut-off plates are slidably connected with the two first cut-off openings correspondingly. The inner cylinder assembly comprises an inner cylinder body, and two second cut-off openings are formed in the cylinder wall of the inner cylinder body. The inner cylinder is used for being inserted into the outer cylinder, and the two second cut-off openings can communicate with the two first cut-off openings correspondingly. The two second cut-off plates are used for being matched with the two second cut-off openings in an inserted mode so as to cut off a barrel cavity of the inner barrel body. H / H = s / S, h is the distance between the two second cut-off openings in the axis extension direction of the inner cylinder, H is the height of the outer cylinder, s is the cross section area of the inner cylinder, and S is the cross section area of the outer cylinder. Accuracy of accumulated snow layer density measurement results is high.

Description

technical field [0001] The invention relates to the field of measuring tools, in particular to a snow layer density measuring device. Background technique [0002] Snow layer density is an important parameter in snow hydrological models and quantitative remote sensing of snow cover. Therefore, snow density measurement is very important in snow cover scientific research. At present, there are two methods for measuring snow layer density: weighing method and dielectric constant inversion method. The dielectric constant method uses the dielectric constant of the snow to invert the snow density. The instrument used is Snow Fork. The snow density measured by Snow Fork is greatly affected by the environment, especially the temperature and humidity. The parameter error is large, resulting in inaccurate calculated snow layer density. The weighing method is a direct measurement method. The density is calculated by obtaining the volume and mass of the snow. The commonly used measuri...

Claims

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Application Information

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IPC IPC(8): G01N9/02
CPCY02A90/10
Inventor 刘章文韩春坛刘俊峰郭淑海陈仁升
Owner NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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