spatial measurement
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Author(s):  
С.В. Бирюков ◽  
А.В. Тюкин ◽  
Л.В. Тюкина

Мы живем в мире высоких энергетических технологий, способных передавать электрическую энергию на большие расстояния. Эту энергию невозможно сосредоточить только внутри передающих энергетических систем. Она выплескивается наружу в виде электрических полей. Эти электрические поля неблагоприятно воздействуют на окружающую среду, технические и биологические объекты. В связи с этим необходимо контролировать уровни электрических полей, важной характеристикой которых является напряженность электрического поля. Для восприятия электрического поля необходимы датчики напряженности электрического поля. Существующие датчики неудобны в эксплуатации и имеют высокую погрешность восприятия напряженности электрического поля, достигающую ± 20%. Bыдвигается идея создания универсального датчика нового вида, относящeгося к виду сдвоенных датчиков. Его универсальность заключается в том, что он воплощает в себе все виды известных датчиков - одинарные, сдвоенные и теперь еще двойные. Погрешность восприятия напряженности неоднородного электрического поля сдвоенных датчиков не превышает +5 % во всем пространственном диапазоне измерения 0£ a £1. При этом расстояние d до источника поля ограничено только радиусом сферического основания датчика, т.е. d » R , в то время как для датчиков, входящих в состав сдвоенного датчика, в том же пространственном диапазоне измерение погрешности составляет ± 35 %. Используя сдвоенный датчик, можно добиться значительного повышения точности измерения напряженности неоднородных электрических полей в широком пространственном диапазоне измерений по сравнению с известными датчиками We live in a world of high energy technologies capable of transmitting electrical energy over long distances. This energy cannot be concentrated only within the transmitting energy systems. It spills out in the form of electric fields. These electric fields adversely affect the environment, technical and biological objects. In this regard, it is necessary to control the levels of electric fields, an important characteristic of which is the strength of the electric field. Sensors of the electric field strength are required to sense the electric field. The existing sensors are inconvenient in operation and have a high error in the perception of the electric field strength, reaching ± 20%. In the work under consideration, the idea of creating a universal sensor of a new type, related to the type of dual sensors, is put forward. Its versatility lies in the fact that it embodies all types of known sensors - single, twin, and now dual. The error in the perception of the intensity of the inhomogeneous electric field of the dual sensors does not exceed + 5% in the entire spatial measurement range 0£ a £1. In this case, the distance d to the field source is limited only by the radius of the spherical base of the sensor, i.e. d » R . At the same time, for sensors that are part of a dual sensor in the same spatial measurement range, the error is ± 35%. Using a dual sensor, it is possible to achieve a significant increase in the accuracy of measuring the strength of inhomogeneous electric fields in a wide spatial measurement range in comparison with known sensors.


2021 ◽  
Author(s):  
Suifeng Zhang ◽  
difei jiang

Abstract River systems acts as the critical factor for site selection. In the process of rural evolution, river adaptability created by human settlement is fading away due to inadequate understanding of inherent spatial characteristics. To better understand the inherent law of the applicability of traditional villages river systems , this study proposed the concept of inheritance based on spatial measurement of the correlation between traditional villages and river systems. With the help of GIS10.8 and SPSS26.0 software, this study takes 658 national traditional villages of Hunan and domestic river systems as an example to measure the spatial correlation characteristics,which concludes spatial pattern, spatial density and spatial distance. Summarize the similarity and differences characteristics of spatial distribution. Analyse and interpret the impact index of spatial correlation through the stepwise regression model. The results actually showed that traditional villages are uneven distributed along river systems, which are mainly affected by minority population, elevation and farming industry. In addition, traditional villages are less with the increase of spatial distance from river systems. The values of spatial quantitative measurement and mechanism can reflect the traditional survival wisdom.It can guide significance for spatial growth mechanism of integration with environment and provide references for future conservation and utilization of spatial heritage sustainability.


Romanticism ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 28-45
Author(s):  
Ann C. Colley

Shoes and Boots were essential components in Coleridge's spatial exploration of his surroundings. Notebook entries dashed off while he was walking through the countryside between 1794 and 1804 reveal a dynamic perspective of the landscape frequently grounded in his footsteps rather than in the scrutiny and range of the eye. Coleridge's descriptions reveal a perspective that, in addition to observing the fluctuating sights and sounds of his surroundings, paid keen attention to the telling feel of what lay underneath the tread of his soles. Moreover, in the manner of a surveyor, his feet registered the spatial measurement of the landscape. This attentiveness occasioned a lasting preoccupation with the construction and quality of his walking shoes and boots. Coleridge's descriptions of landscape, therefore, are not only bound to the autocracy of the eye but also to the pace and tread of his feet.


Measurement ◽  
2021 ◽  
Vol 174 ◽  
pp. 108909
Author(s):  
Ruiqing Zhou ◽  
Bernd Kauschinger ◽  
Steffen Ihlenfeldt

2021 ◽  
Vol 287 ◽  
pp. 125486
Author(s):  
Yuqing Geng ◽  
Rui Wang ◽  
Zejun Wei ◽  
Qinghua Zhai

2021 ◽  
pp. 62-67
Author(s):  
S. V. Biryukov ◽  
◽  
L. V. Tyukina ◽  
A. V. Tyukin ◽  
◽  
...  

These electric fields adversely affect the environment, technical and biological objects. In this regard, it is necessary to control the levels of electric fields, an important characteristic of which is the strength of the electric field. Sensors of the electric field strength are required to sense the electric field. The existing sensors are inconvenient in operation and have a high error in the perception of the electric field strength, reaching  20 %. In the work under consideration, the idea of creating a universal sensor of a new type, related to the type of dual sensors, is put forward. Its versatility lies in the fact that it embodies all types of known sensors — single, double, and now twin. The error in the perception of the intensity of the inhomogeneous electric field of the dual sensors does not exceed + 5 % in the entire spatial measurement range 0a1. In this case, the distance d to the field source is limited only by the radius of the spherical base of the sensor, i.e. d  R. At the same time, for sensors that are part of a dual sensor in the same spatial measurement range, the error is  35 %. Using a dual sensor, it is possible to achieve a significant increase in the accuracy of measuring the strength of inhomogeneous electric fields in a wide spatial measurement range in comparison with known sensors.


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