Experiment with simultaneous measurements at two optical wavelengths in the FG5X absolute gravimeter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025615%3A_____%2F23%3AN0000014" target="_blank" >RIV/00025615:_____/23:N0000014 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1361-6501/ad1311/meta" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6501/ad1311/meta</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6501/ad1311" target="_blank" >10.1088/1361-6501/ad1311</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experiment with simultaneous measurements at two optical wavelengths in the FG5X absolute gravimeter

Popis výsledku v původním jazyce

In this paper, for the first time, it is demonstrated the possibility to track the test mass of absolute gravimeters simultaneously with two optical wavelengths and to evaluate the gravity acceleration from both these measurements. We show the technical solution, mathematical methods and error sources that have to be taken into account for the realization of simultaneous interferometric measurements. The achieved results show agreement of the gravity accelerations at the level of 2–4 microgals and increased low-frequency noise in residuals at 771 nm due to optical optimisation of a gravimeter to the wavelength of 633 nm. We discuss that the optimisation of a gravimeter to a certain wavelength is related to the applied antireflective coating on the optical elements of the gravimeter among them the glass retroreflector plays the key role since its movements being dominant.

Název v anglickém jazyce

Experiment with simultaneous measurements at two optical wavelengths in the FG5X absolute gravimeter

Popis výsledku anglicky

In this paper, for the first time, it is demonstrated the possibility to track the test mass of absolute gravimeters simultaneously with two optical wavelengths and to evaluate the gravity acceleration from both these measurements. We show the technical solution, mathematical methods and error sources that have to be taken into account for the realization of simultaneous interferometric measurements. The achieved results show agreement of the gravity accelerations at the level of 2–4 microgals and increased low-frequency noise in residuals at 771 nm due to optical optimisation of a gravimeter to the wavelength of 633 nm. We discuss that the optimisation of a gravimeter to a certain wavelength is related to the applied antireflective coating on the optical elements of the gravimeter among them the glass retroreflector plays the key role since its movements being dominant.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/LTT19008" target="_blank" >LTT19008: Výzkum související s Mezinárodním tíhovým referenčním systémem</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Measurement Science and Technology

ISSN

0957-0233

e-ISSN

1361-6501

Svazek periodika

35

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

035013

Kód UT WoS článku

001125672200001

EID výsledku v databázi Scopus

2-s2.0-85180357364