Influence of Partial Solar Eclipse 2016 on the surface gravity acceleration using photogate sensor on Kater's reversible pendulum

International Symposium on Sun, Earth, and Life

物理学;天文学;生物科学

Nugraha, M.G.^1 ; Saepuzaman, D.^1 ; Sholihat, F.N.^1 ; Ramayanti, S.^1 ; Setyadin, A.H.^1 ; Ferahenki, A.R.^1 ; Samsudin, A.^1 ; Utama, J.A.^1 ; Susanti, H.^1 ; Kirana, K.H.^2

Departemen Pendidikan Fisika, FPMIPA, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung

40154, Indonesia^1

Departemen Geofisika, FMIPA, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21, Jatinangor

45363, Indonesia^2

关键词: Difference values;    Earth's surface;    Gravitational accelerations;    Gravity acceleration;    Oscillation motion;    Physics laboratories;    Surface gravity;    Time interval measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/771/1/012002/pdf
DOI  :  10.1088/1742-6596/771/1/012002

来源: IOP

【 摘 要 】

This study was conducted to determine the Earth's surface gravitational acceleration (g) prior to, during, and after a partial solar eclipse. Data was collected in Basic Physics Laboratory Universitas Pendidikan Indonesia, Bandung with coordinates S 6°51′48″, E 107°35′40″ for three days on March 8 - 10, 2016, in time interval measurement from 6 a.m. to 9 a.m. This research used a standard pendulum, Kater's reversible pendulum, which deviated less than 3° so that the motion can be regarded harmonics oscillation. The period of pendulum oscillation motion is measured by a light sensor (photogate sensor) with accuracy until 10-13seconds. The data analysis shows that there is small difference value of gravity acceleration at the Earth's surface from three days of observation, i.e. in the order of 10-3ms-2. It means, there is a changes in the Earth's surface gravitational acceleration (g) due to the partial solar eclipse but not significant.