Terrain roughness tester

A surface roughness and tester technology, which is applied in the field of devices for obtaining three-dimensional information on the surface, can solve the problems of long time consumption, difficult measurement accuracy and speed, and low measurement cost

Inactive Publication Date: 2011-05-04
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The measurement cost of the device used in the contact method measurement in the prior art is low, but the measurement value needs to be obtained by measuring with a r

Method used

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Embodiment 1

[0057] Embodiment 1: as figure 1 As shown, the composition of the surface roughness tester of the present invention includes: an electric moving unit 1, an adjustment bracket platform unit, an imaging unit and a computer 12; After being fixedly connected with the electric mobile unit 1, it is placed under the adjustment bracket platform unit 1 facing the ground, and the computer 12 is connected with the electric mobile unit 1 and the imaging unit;

[0058] Such as figure 2 As shown, the adjustment bracket platform unit is composed of an upper adjustment platform 2, a fine adjustment base 3, a lower adjustment platform 4, a pillar 5, and a coarse adjustment base 6; the adjustment bracket platform unit is used to support and ensure that the electric mobile unit 1 is in a stable horizontal state ;in,

[0059] The bottom end of the pillar 5 is pointed, and the bottom of the pillar 5 has an external thread that matches the internal thread of the coarse adjustment base 6; there a...

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PUM

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Abstract

The invention discloses a terrain roughness tester, which comprises an electric moving unit, an adjustment bracket platform unit, an imaging unit and a computer, wherein the electric moving unit is fixedly connected to the table top of the adjustment bracket platform unit; after being fixedly connected with the electric moving unit, the imaging unit is arranged below the adjustment bracket platform unit in a way of facing the ground; and under the control of the computer, the electric moving unit drives the imaging unit to finish scanning and imaging a tested area, and processing is performed to obtain the three-dimensional space coordinate information of the tested ground, so that a terrain roughness parameter is conveniently calculated. The terrain roughness tester provided by the invention is used for testing the terrain roughness parameter without calibrating an apparatus on the spot and pasting a marking point on the tested area, can rapidly and automatically obtain the terrain roughness parameter of the tested area, has a simple structure and low cost, is convenient to use and widely applicable to the measurement of a farmland and the earth, and provides reliable data support for agricultural production, the yield estimation of grains and microwave inversion.

Description

technical field [0001] The invention belongs to a device for obtaining three-dimensional information of the earth surface, in particular to an earth surface roughness parameter tester. Background technique [0002] Surface roughness is the roughness of the soil surface. A rough soil surface increases the soil surface area, which can accumulate part of the rainfall, reduce the wind speed, and increase the solar radiation area. At the same time, it increases the evaporation of the soil and reduces the moisture content of the soil profile. Soil surface roughness is an important parameter that characterizes soil hydrological characteristics and affects soil properties, and affects the scattering and thermal radiation characteristics of the soil surface. [0003] There are usually two measurement methods for surface roughness: non-contact measurement and contact measurement. The contact measurement methods mainly include stylus method, chain method and rod ruler method. Most o...

Claims

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Application Information

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IPC IPC(8): G01B11/30F16M11/04F16M11/18F16M11/26
Inventor 李晓洁张世轶姜涛
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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