Determination of the vertical gradients based on Eötvös torsion balance measurements

2012 ◽  
Vol 7 (3) ◽  
pp. 109-116 ◽  
Author(s):  
Zita Ultmann
Keyword(s):  
Torsion Balance ◽  
Torsion Balance Measurements ◽  
Vertical Gradients

scholarly journals Refinement of the normal Eötvös matrix and its influence on the estimation of the deflections of the vertical

2015 ◽  
Vol 45 (2) ◽  
pp. 93-109
Author(s):  
Gerassimos Manoussakis ◽  
Romylos Korakitis
Keyword(s):  
Torsion Balance ◽  
Deflection Of The Vertical ◽  
Numerical Example ◽  
Deflections Of The Vertical ◽  
Physical Surface ◽  
Torsion Balance Measurements ◽  
Analytical Expressions

Abstract The elements of the Eötvös matrix, usually determined by torsion balance measurements, are useful in many geodetic applications. We present a method for the computation of the elements of the normal Eötvös matrix at a point on the Earth’s physical surface, resulting in an improvement in the determination of the deflection of the vertical at intermediate points of a network. In the process, we also present analytical expressions for the computation of the components of the deflection of the vertical. From those expressions and using also a numerical example, we show that the proposed refinement is not completely negligible.

scholarly journals XIV. On a determination of the mean density of the Earth and the gravitation constant by means of the common balance

1891 ◽  
Vol 182 ◽  
pp. 565-656 ◽  
Keyword(s):  
Royal Society ◽  
Torsion Balance ◽  
Chemical Balance ◽  
The Earth ◽  
The Common ◽  
The Mean ◽  
Common Balance

In a paper printed in the Proceedings of the Royal Society,' No. 190, 1878 (vol. 28, pp. 2-35), I gave an account of some experiments undertaken in order to test the possibility of using the Common Balance in place of the Torsion Balance in the Cavendish Experiment. The success obtained seemed to justify the intention expressed in that paper to continue the work, using a large bullion balance, instead of the chemical balance with which the preliminary experiments were made. As I have had the honour to obtain grants from the Royal Society for the construction of the necessary apparatus, I have been able to carry out the experiment on the larger scale which appeared likely to render the method more satisfactory, and this paper contains an account of the results obtained.

Gravity networks for the Geodetic Reference Framework of Albania

2020 ◽  
Author(s):  
Hamza Reci ◽  
Alexandros Stampolidis ◽  
Perparim Ndoj ◽  
Gregory Tsokas ◽  
Roman Pašteka ◽  
...  
Keyword(s):  
Reference Point ◽  
Third Order ◽  
Geospatial Information ◽  
Dense Area ◽  
First Order ◽  
Reference Framework ◽  
Gravimetric Measurements ◽  
Final Data ◽  
Vertical Gradients

<p>This paper presents a general overview of gravimetric measurements carried out for the first order gravimetric network of Albania.   Data compensation, correction methodologies, interpretation and related results have been presented as well. Relative gravimetric measurements were carried out in 42points,  with two CG-5 instruments. Real Vertical Gradients have been measured at all the points of first order network which together with other corrections,  are used in the final data compensation in order to bring the final values at reference point as absolute ones. Apart from the first order network, other 38 second order and 138 third order gravimetric points have been measured in a grid 2x2 km, in the  flat and most dense area (Tirana-Durresi) of Albania,  with the  scope the determination of  Geoid Gravimetric Height on that region. The gravimetric measurements were realized with two Scintrex CG-5 gravimeters for three orders. For the first order points were used two gravimeters simultaneously, whereas for the points of second and third order only one. In this paper we present the results for only the first order measurements. The measurements were carried out during the period from August to October 2018, in collaboration with Aristotle University of Thessaloniki, Department of Geophysics. The project was supported by the Agency of Geospatial Information of Albania.</p>

Determination of the limit of photon mass and cosmic magnetic vector with rotating torsion balance

2000 ◽  
Vol 270 (6) ◽  
pp. 288-292 ◽  
Author(s):  
Jun Luo ◽  
Cheng-Gang Shao ◽  
Zhong-Zhu Liu ◽  
Zhong-Kun Hu
Keyword(s):  
Torsion Balance ◽  
Photon Mass ◽  
Magnetic Vector
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