Improved measurement model for FG5/X gravimeters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F21%3AN0000001" target="_blank" >RIV/00177016:_____/21:N0000001 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025615:_____/20:N0000059 RIV/00177016:_____/21:N0000081

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0263224120312422?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0263224120312422?via%3Dihub</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Improved measurement model for FG5/X gravimeters

Popis výsledku v původním jazyce

Absolute gravimeters are instruments that realize reference measurements of the free-fall acceleration, at present by tracking the freely falling objects using interferometry. The functional model of measurements of absolute gravimeters contains parameters related to the model of the local gravity field as well as to the model of particular instrumental effects. In this paper, we show an improvement of the measurement model of absolute gravimeters based on laser interferometry, by an enhanced description of instrumental effects. Namely, a more precise description of the demodulation of the interferometric signal is presented as well as a newly discovered and explained parasitic signal due to the dropping mechanism of FG5 and FG5X (FG5/X) gravimeters. These improvements can be easily incorporated into the measurement model allowing to obtain more accurate and more stable results for g-values needed for various geophysical and metrological applications requiring the highest level of accuracy.

Název v anglickém jazyce

Improved measurement model for FG5/X gravimeters

Popis výsledku anglicky

Absolute gravimeters are instruments that realize reference measurements of the free-fall acceleration, at present by tracking the freely falling objects using interferometry. The functional model of measurements of absolute gravimeters contains parameters related to the model of the local gravity field as well as to the model of particular instrumental effects. In this paper, we show an improvement of the measurement model of absolute gravimeters based on laser interferometry, by an enhanced description of instrumental effects. Namely, a more precise description of the demodulation of the interferometric signal is presented as well as a newly discovered and explained parasitic signal due to the dropping mechanism of FG5 and FG5X (FG5/X) gravimeters. These improvements can be easily incorporated into the measurement model allowing to obtain more accurate and more stable results for g-values needed for various geophysical and metrological applications requiring the highest level of accuracy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

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

2021

Kód důvěrnosti údajů

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

Název periodika

Measurement

ISSN

0263-2241

e-ISSN

—

Svazek periodika

171

Číslo periodika v rámci svazku

únor

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

108739

Kód UT WoS článku

000614788100005

EID výsledku v databázi Scopus

2-s2.0-85097332759