METHOD FOR MEASUREMENT OF ANGULAR AND ENERGETIC CHARACTERISTICS OF ELECTROJET ENGINE TORCH HEAVY PARTICLES FLOW AND DEVICE FOR ITS REALISATION Russian patent published in 2010 - IPC F03H1/00 

FIELD: power engineering.

SUBSTANCE: method consists of electronic current cut-off from plasma of investigated flow and measurement of ion current at various values of ion-braking potential difference in each specified point of flow cross section. After electronic current cut-off from plasma, in specified point density of heavy particles thermal power is measured in various directions in each of two mutually perpendicular planes. Direction of flow motion is detected in specified point by maximum of thermal power density value, which is used to detect total density of heavy particles energy flow. Then ion-braking difference of potentials is changed. At the same time ion current and thermal power are measured in direction of thermal power maximum, which are used to detect density of energy flow carried by neutrals, as well as function of ions distribution by energies and value of their average energy in point of measurement. Device for measurement of angular and energetic characteristics of heavy particles flow in plasma of electrojet engine torch comprises body with inlet window made of electroconductive non-magnetic material. Header, having input lead, is electrically connected to current metre. It is installed in body opposite to inlet window. Collimator is installed in body and is fixed in its inlet window with the possibility of collimator output opening centre displacement along arc of circumference around centre of body inlet window by means of stem hingedly joined to it via connecting rod, besides header is arranged in the form of calorimetre with concave cylindrical surface facing collimator.

EFFECT: invention makes it possible to produce information on neutral component of heavy particles flow, information on charged and neutral components in flow of heavy particles in plasma jet behind electrojet engine cut, to improve accuracy and reliability of measurements.

2 cl, 1 dwg