Page 148 - PowerPoint Presentation

MERENJE UBRZANJA ZEMLJINE TEŢE POMOĆU INTERFEROMETRA

MEASURMENT OF ACCELERATION OF GRAVITZ WITH INTERFEROMETER

Autor: Nina Bogdanovid, Mentor: Prof. dr Milesa Sredkovid, dipl. inž.

REZIME

Gravitacija je deo svakodnevnice ’’Zemljana’’. Zahvaljujudi Njutnu (Isaac Newton) i Ajnštajnu (Albert
Einstein) i njihovim teorijama, oblast gravimetrije je prilično objašnjena, mada još uvek ima neke svoje
tajne.

Ja du u ovom radu pokušati da ocenim ubrzanje zemljine teže (gravitacije). Rad de se sprovesti uz pomod
Majkelsonovog (Michael Albert Abraham) interferometra , instrumenta, koji radi na principu
interferencije svetlosti. Korišdenjem interferometara dobijan se ''apsolutni gravimetar'' – pribor za
apsolutno merenje ubrzanja sile teže (g). Ovo omogudava da se dobije pogodni pribor sa tečnostima 10 -
7 -8
-5 (0,1-0.5 mgl), tj. više, nego za red veličine nego što je postizano standardnim metodama.

Ključne reči: gravitacija, ubrzanje zemljine teže, Majkelsonov interferometer, interferencija svetlosti, laser

ABSTRACT

Gravity is a part of our every day routine. Thanks to Isaac Newton and Albert Einstein and their theory,
field of gravimetry is rather discovered, although it still has some secrets.

I will try to appraise the valolcity of gravity. The experiment will be carried out by Michel’s
interferometer, istrument wich works by light interferometry. By use of interferometer we get ’’absolute
gravimeter’’~equipment for apsolute measurment acceleration of gravity (g). This enable getting
-7
-8
appropriate equipment with preciseness of 10 -5 (0,1-0.5 mgl), more for one scale of value then what
was scored by standard measurment.

Key word: gravity, acceleration of gravity, Michelson’s interferometer, light interferometry, laser