METHOD FOR DETECTION OF GRAVITATION WAVES DISTRIBUTION SPEED Russian patent published in 2009 - IPC G01V7/00 

FIELD: physics, measurement.

SUBSTANCE: invention is related to the field of gravitation-wave physics and may be used to detect speed of gravitation waves (GW) distribution. According to the invention, GW speed is detected by results of measurements of signal phase, which is registered from binary relativistic astrophysical object that radiates low-frequency GW of stable frequency. Invention feature consists in the fact that only one GW detector installed on the Earth is used. Due to orbital motion of the Earth around the Sun, variation of distance between the Erath and astrophysical source of GW has periodical component, which is taken into account for measurement of gravitation signal phases φ₁ and φ₂ in fixed moments of time t₁ and t₂. It makes it possible to find additional (relative to the case of GW detector that is "immovable" in barycentric system of coordinates) variation of gravitation signal phase, provided by variation of distance from the Earth to astrophysical source of GW by value ΔD for time t₂ - t₁. By found additional variation of phase, frequency ω_g accepted by GW and available variation of distance ΔD, with the help of mathematical expression given in invention formula, GW speed is found.

EFFECT: provision of possibility to measure GW speed without application of costly extraterrestrial GW detectors.