Topcon Positioning Systems, Inc.

Sergey Viktorovich Rogachkov

Mark Isaakovich Zhodzishsky

Alexey Vladislavovich Zhdanov

Vladimir Victorovich Beloglazov

Roman Valerievich Kurynin

Danila Svyatoslavovich Milyutin

Alexander Vladimirovich Osipov

Anton Gennadievich Golovanov

Vadim Borisovish Kuzmitchev

Kirill Valerievich Isaev

Vadim Borisovich Kuzmitchev

A method and system are provided for estimating the g-sensitivity of a quartz oscillator, which includes rotating the quartz oscillator successively around each of a plurality of axes constituting a full-rank system, measuring a frequency of the quartz oscillator at a predetermined rate as a function of time during rotation, and estimating an integral g-sensitivity vector while the quartz oscillator is rotated. Estimation can be performed utilizing a data fitting and estimation model, e.g., a Least Square Method (LSM) in one example, using the frequency measurements obtained while the quartz oscillator is in rotation around the axes. The method and system are especially useful for measuring g-sensitivity of quartz oscillators that are incorporated in high-precision systems, such as navigation receivers, which operate in environments that are subjected to vibrational effects and other mechanical forces.

Method and system for measuring g-sensitivity of quartz oscillators

Growing community of inventors

Moscow, Russia

Sergey Viktorovich Rogachkov