Log in

Relevant bibliographies by topics / Trigonometric height measurement / Journal articles

To see the other types of publications on this topic, follow the link: Trigonometric height measurement.

Journal articles on the topic 'Trigonometric height measurement'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 20 journal articles for your research on the topic 'Trigonometric height measurement.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Xu, Yiteng, Xin Zhao, Hewen Liu, Feng Xu, and Xiaoqiang Wang. "The Improvement and application of elevation measurement method with total station." E3S Web of Conferences 165 (2020): 03018. http://dx.doi.org/10.1051/e3sconf/202016503018.

Full text

Abstract:

In this paper, by analyzing the limitations of the traditional trigonometric elevation method, and on the basis of establishing a mathematical model of trigonometric elevation, a convenient and fast trigonometric elevation method without instrument height and prism height is improved, and the operation steps of the method are introduced in detail. The accuracy analysis was evaluated and the method was applied to actual engineering. The results show that under the premise of ensuring the measurement accuracy, this method not only reduces the range of measurement error sources, but also improves

APA, Harvard, Vancouver, ISO, and other styles

2

Zhou, Xian Ping, and Ming Sun. "Study on Accuracy Measure of Trigonometric Leveling." Applied Mechanics and Materials 329 (June 2013): 373–77. http://dx.doi.org/10.4028/www.scientific.net/amm.329.373.

Full text

Abstract:

How to reduce the errors of the total station in vertical angle measurement is a main problem for improving the accuracy of trigonometric leveling. The leveling method combining the total station with a tracking bar is becoming increasingly more popular, and also the limitations of the traditional trigonometric leveling method have been shown. After a long period of exploration, a new method is proposed for trigonometric leveling. The results show that the error sources of trigonometric leveling are reduced by the method combining with the total station on any spot, and also instrument height

APA, Harvard, Vancouver, ISO, and other styles

3

Shieh, Jen Yu, Min Xian Gao, Yu Ting Liu, Guo Jyun Liao, and Chen Kai Wang. "Designing and Constructing a Non-Contact Measuring Device for 3D Objects." Applied Mechanics and Materials 687-691 (November 2014): 1011–14. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.1011.

Full text

Abstract:

This work proposes an economical, practical, and easy-to-operate combined measuring device to measure volume. This device integrates measuring tools that are commonly employed in architectural engineering for gauging distance, height, area, and volume, and has an error rate of less than 1% in volume measuring. Regarding the microcomputer controller, the law of cosines in trigonometric functions was adopted to calculate side lengths. The experimental results verified that this device can identify the correlation coefficients of side-length measurements by using sensors and calculating the side

APA, Harvard, Vancouver, ISO, and other styles

4

Goluk, Victor P., and Denis G. Nazarov. "INTEGRATED APPROACH TO THE GEODESIC CONTROL OF THE INSTALLATION OF ASPHALT-CONCRETE COATING ON THE EXAMPLE OF THE CONSTRUCTION OF THE ROAD BRIDGE TRANSITION ACROSS THE KERCH SHEET." Interexpo GEO-Siberia 1, no. 1 (2020): 106–19. http://dx.doi.org/10.33764/2618-981x-2020-1-1-106-119.

Full text

Abstract:

During the construction of bridges, special attention is paid to geometric parameters, one of the most important parameters of the rideable bed is the evenness of the bases and coatings. Geodetic works provide an integrated approach to solving the problem of controlling the flatness of the base layers, which includes: geodetic survey of the rideable canvas, verification of working documentation, control of the copying string, geometric control of the evenness of the laid asphalt concrete floor slab for the steel concrete span and bridge deck for a metal span structure. Various options for cont

APA, Harvard, Vancouver, ISO, and other styles

5

Pereira, Iokanam, Henrique Mendonça do Nascimento, Matheus Boni Vicari, et al. "Performance of Laser-Based Electronic Devices for Structural Analysis of Amazonian Terra-Firme Forests." Remote Sensing 11, no. 5 (2019): 510. http://dx.doi.org/10.3390/rs11050510.

Full text

Abstract:

Tropical vegetation biomass represents a key component of the carbon stored in global forest ecosystems. Estimates of aboveground biomass commonly rely on measurements of tree size (diameter and height) and then indirectly relate, via allometric relationships and wood density, to biomass sampled from a relatively small number of harvested and weighed trees. Recently, however, novel in situ remote sensing techniques have been proposed, which may provide nondestructive alternative approaches to derive biomass estimates. Nonetheless, we still lack knowledge of the measurement uncertainties, as bo

APA, Harvard, Vancouver, ISO, and other styles

6

Heyduk, Adam. "Laser Triangulation in 3-Dimensional Granulometric Analysis." Archives of Mining Sciences 61, no. 1 (2016): 15–27. http://dx.doi.org/10.1515/amsc-2016-0002.

Full text

Abstract:

Abstract The measurement of the particle size distribution plays an important role in mineral processing. Due to the high costs and time-consumption of the screening process, modern machine vision methods based on the acquisition and analysis of recorded photographic images. But the image analysis methods used so far, do not provide information on the three-dimensional shape of the grain. In the coal industry, the application scope of these methods is substantially limited by the low reflectivity of the black coal particle surface. These circumstances hinder proper segmentation of coal stream

APA, Harvard, Vancouver, ISO, and other styles

7

Rybansky, M., M. Brenova, P. Zerzan, J. Simon, and T. Mikita. "METHODS FOR THE UPDATE AND VERIFICATION OF FOREST SURFACE MODEL." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B4 (June 10, 2016): 51–54. http://dx.doi.org/10.5194/isprs-archives-xli-b4-51-2016.

Full text

Abstract:

The digital terrain model (DTM) represents the bare ground earth's surface without any objects like vegetation and buildings. In contrast to a DTM, Digital surface model (DSM) represents the earth's surface including all objects on it. The DTM mostly does not change as frequently as the DSM. The most important changes of the DSM are in the forest areas due to the vegetation growth. Using the LIDAR technology the canopy height model (CHM) is obtained by subtracting the DTM and the corresponding DSM. The DSM is calculated from the first pulse echo and DTM from the last pulse echo data. The main

APA, Harvard, Vancouver, ISO, and other styles

8

Rybansky, M., M. Brenova, P. Zerzan, J. Simon, and T. Mikita. "METHODS FOR THE UPDATE AND VERIFICATION OF FOREST SURFACE MODEL." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B4 (June 10, 2016): 51–54. http://dx.doi.org/10.5194/isprsarchives-xli-b4-51-2016.

Full text

Abstract:

The digital terrain model (DTM) represents the bare ground earth's surface without any objects like vegetation and buildings. In contrast to a DTM, Digital surface model (DSM) represents the earth's surface including all objects on it. The DTM mostly does not change as frequently as the DSM. The most important changes of the DSM are in the forest areas due to the vegetation growth. Using the LIDAR technology the canopy height model (CHM) is obtained by subtracting the DTM and the corresponding DSM. The DSM is calculated from the first pulse echo and DTM from the last pulse echo data. The main

APA, Harvard, Vancouver, ISO, and other styles

9

RÁKAY, Štefan, Slavomír LABANT, and Karol BARTOŠ. "VERIFICATION OF FLOOR PLANARITY BY TRIGONOMETRICAL MEASUREMENT OF HEIGHTS ON A 5-STOREY MONOLITHIC BUILDING." Geodesy and cartography 44, no. 1 (2018): 14–21. http://dx.doi.org/10.3846/gac.2018.269.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Nikonov, Anton, Nikolay Kosarev, Olga Solnyshkova, and Inna Makarikhina. "Geodetic base for the construction of ground-based facilities in a tropical climate." E3S Web of Conferences 91 (2019): 07019. http://dx.doi.org/10.1051/e3sconf/20199107019.

Full text

Abstract:

The data on the geodetic base creation for surveys and construction on the example of works to expand the power station capacity, performed in one of the Latin America countries in 2015-2018, are presented in the paper. The points’ coordinates obtained by two methods were established. A comparison of the points’ heights obtained from II class geometric leveling and two-sided trigonometric leveling is also carried out. It was concluded that the high accuracy of determining the points’ coordinates and altitudes can be obtained by ground methods (using a total station) with careful measurements e

APA, Harvard, Vancouver, ISO, and other styles

11

Nikonov, Anton, and Irina Chesheva. "ACCURACY OF THE GEODETIC CONTROL NETWORK DEVELOPED BY LAND METHODS." Interexpo GEO-Siberia 1, no. 1 (2019): 130–43. http://dx.doi.org/10.33764/2618-981x-2019-1-1-130-143.

Full text

Abstract:

The article gives comparative analysis of the creating horizontal and vertical geodetic control network for the purposes of research and building. It is recommended to create geodetic network on the territory up to 1–2 sq km by means of linear-angular measurements with the accuracy of urban fourth-order traverse. After centering the total station and the reflector with an error not more than 1 mm, the minimal network side is 140 m. The precalculation of geodetic control network accuracy with the given confidence level can be performed in CredoDAT. Creation of vertical and horizontal geodetic n

APA, Harvard, Vancouver, ISO, and other styles

12

Lu, Mei-Kuei, Tzeng Yih Lam, Bo-Hao Perng, and Ho-Tung Lin. "Close-range photogrammetry with spherical panoramas for mapping spatial location and measuring diameters of trees under forest canopies." Canadian Journal of Forest Research 49, no. 8 (2019): 865–74. http://dx.doi.org/10.1139/cjfr-2018-0430.

Full text

Abstract:

Measurement of tree attributes is important to collect information for forest management. Close-range photogrammetry with spherical panoramas has seen very little development and applications compared with aerial photography. This study develops methods to extract azimuth, horizontal distance, diameter at breast height, and upper stem diameters of individual trees from spherical panoramas based on (i) the trigonometry principle (TRIGO), (ii) the TRIGO corrected for terrain slope (TRIGOSLP), and (iii) the pinhole camera model (PINHOLE). Twenty-three horizontal point sample plots were randomly e

APA, Harvard, Vancouver, ISO, and other styles

13

Dellwik, E., J. Mann, and F. Bingöl. "Flow tilt angles near forest edges – Part 2: Lidar anemometry." Biogeosciences 7, no. 5 (2010): 1759–68. http://dx.doi.org/10.5194/bg-7-1759-2010.

Full text

Abstract:

Abstract. A novel way of estimating near-surface mean flow tilt angles from ground based Doppler lidar measurements is presented. The results are compared with traditional mast based in-situ sonic anemometry. The tilt angle assessed with the lidar is based on 10 or 30 min mean values of the velocity field from a conically scanning lidar. In this mode of measurement, the lidar beam is rotated in a circle by a prism with a fixed angle to the vertical at varying focus distances. By fitting a trigonometric function to the scans, the mean vertical velocity can be estimated. Lidar measurements from

APA, Harvard, Vancouver, ISO, and other styles

14

Sievers, J., C. S. M. Doake, J. Ihde, et al. "Validating and improving elevation data of a satellite-image map of Filchner,Ronne Ice Shelf, Antarctica, with Results from ERS-1." Annals of Glaciology 20 (1994): 347–52. http://dx.doi.org/10.3189/1994aog20-1-347-352.

Full text

Abstract:

A satellite-image map with surface-elevation contours of Filchner Ronne Ice Shelf has been published previously as a topographic map. The image map was constructed from a mosaic of 69 Landsat Multispectral Scanner (MSS) images and NOAA AVHRR data. The standard deviation in position in the central part of the mosaic is ±125m. Topographic-glaciologic features were taken from Landsat scenes and represent the best coastline of this region. Surface elevations have been calculated from airborne and ground measurements of either ice thickness (by assuming hydrostatic equilibrium) or barometric pressu

APA, Harvard, Vancouver, ISO, and other styles

15

Sievers, J., C. S. M. Doake, J. Ihde, et al. "Validating and improving elevation data of a satellite-image map of Filchner,Ronne Ice Shelf, Antarctica, with Results from ERS-1." Annals of Glaciology 20 (1994): 347–52. http://dx.doi.org/10.1017/s0260305500016670.

Full text

Abstract:

A satellite-image map with surface-elevation contours of Filchner Ronne Ice Shelf has been published previously as a topographic map. The image map was constructed from a mosaic of 69 Landsat Multispectral Scanner (MSS) images and NOAA AVHRR data. The standard deviation in position in the central part of the mosaic is ±125m. Topographic-glaciologic features were taken from Landsat scenes and represent the best coastline of this region. Surface elevations have been calculated from airborne and ground measurements of either ice thickness (by assuming hydrostatic equilibrium) or barometric pressu

APA, Harvard, Vancouver, ISO, and other styles

16

Alvarez, Richard. "How High Is the Water Tower?" Mathematics Teacher 89, no. 4 (1996): 274–78. http://dx.doi.org/10.5951/mt.89.4.0274.

Full text

Abstract:

When are we ever going to need this math?” This question, frequently heard in high school mathematics courses, elicits an interesting, and perhaps unique, response from teachers at one California high school. To experience an indepth practical application of mathematics, the trigonometry and precalculus classes meet at the school's water tower and use some of the mathematics learned in classrooms. Students measure the height of the tower's topmost point, which is not only inaccessible but also invisible from the ground. In the process, they engage in some good teamwork, see how their mathemati

APA, Harvard, Vancouver, ISO, and other styles

17

Ogura, Ichiro, Kiwamu Ashida, and Jun Akedo. "Development of First Production Flaw Detecting System for On-Demand Repair of Large-Scale Circuit." International Journal of Automation Technology 9, no. 5 (2015): 487–93. http://dx.doi.org/10.20965/ijat.2015.p0487.

Full text

Abstract:

To realize an efficient high-mix low-volume production, improving the yield rate by reducing production flaws is an important technique. Manufacturing touch panel displays with large-scale wiring boards is a typical example of the high-mix low-volume production. The National Institute of Advanced Industrial Science and Technology (AIST) has proposed a laser assisted ink-jet printing (LIJ) technology, which can repair the flaws of circuits by a silver nanoparticle ink. To establish an in-process repairing system for a touch panel display, a first production flaw detecting system is necessary in

APA, Harvard, Vancouver, ISO, and other styles

18

Yang, DingLiang, and JinGui Zou. "Precise levelling in crossing river over 5 km using total station and GNSS." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-86929-1.

Full text

Abstract:

AbstractThe trigonometric levelling using the simultaneous reciprocal method has been proved to meet the precision of second order levelling. But this method is invalid once the distance of river crossing is beyond 3.5 km due to the difficulty of target recognition at such a long distance. To expand the available range of this method, this paper focuses on solving the target aiming and distance observation over a long distance. A modular LED 5-prism (modified Leica GPR1 reflector) as an illuminated target instead of the common prism is introduced, and we adopt the sub-pixel image processing te

APA, Harvard, Vancouver, ISO, and other styles

19

Rinaldy and Rahmat Taufik Hidayat. "Pemetaan Eksterior Gedung 3 Dimensi (3D) Menggunakan Electronic Total Station (ETS)." REKA GEOMATIKA 2016, no. 1 (2018). http://dx.doi.org/10.26760/jrg.v2016i1.1836.

Full text

Abstract:

ABSTRAKSaat ini masih banyak orang yang melakukan pemetaan 2D, tetapi seiring berkembangnya teknologi pemetaan secara 3D mulai dikembangkan. Pada studi ini kegiatan pemetaan dilakukan dengan metode terestris dengan melakukan pengukuran sudut dan jarak untuk mendapatkan posisi berupa x, y, z dan data keruangan berupa panjang, lebar, dan tinggi. Pada studi ini, pemetaan 3D lebih dikembangkan dengan melakukan pengukuran metode terestris dengan menggunakan alat Electronic Total Station (ETS). Namun, tidak semua objek dapat diukur menggunakan alat ETS, dikarenakan wilayah pengukuran terletak pada d

APA, Harvard, Vancouver, ISO, and other styles

20

Trifković, Milan, and Žarko Nestorović. "DETERMINATION OF AIR REFRACTION INFLUENCE ON TRIGONOMETRIC HEIGHT DIFFERENCES." Archives for Technical Sciences 1, no. 18 (2018). http://dx.doi.org/10.7251/afts.2018.1018.055t.

Full text

Abstract:

Efficiency of trigonometric levelling method for height differences determination is better than thosedetermined by geometric levelling but its accuracy is significantly lower. Development of accuracy ofgeodetic instruments increases possibilities for improvement accuracy of trigonometriclevelling.However, air refraction appears as ultimate limitation factor for accuracy of trigonometricheights determination improvement. This paper aims to research the influence of air refraction onaccuracy of height differences determined by trigonometric levelling method. Basic statisticalhypothesis is that

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!