METHOD AND DEVICE FOR MEASURING PLASMA FLOW PARAMETERS OF ELECTRIC ROCKET ENGINES Russian patent published in 2023 - IPC F02K9/96 G01M15/14 

FIELD: electric engineering.

SUBSTANCE: invention relates to devices and methods for measuring the characteristics of electric rocket engines (ERE): thrust, plasma density and flow velocity. The device contains a hollow dielectric rod, at one end of which a receiving plate-target is installed, at the other - a supporting element, a housing, a strain gauge and an electronic circuit, while the receiving plate-target is simultaneously a collector of the Langmuir probe, and the collector area is equal to the area of the receiving plate-target, an interface connector for connecting to a voltage source and a calculation unit, a conductor connected to a receiving target plate passes inside a hollow dielectric rod, an electronic circuit connected to a strain gauge, a conductor and an interface connector, is located inside the housing and contains blocks for normalizing signals from strain gauge and Langmuir probe with an internal supply voltage stabilizer, a shielding tube and a strain gauge located in its cavity are attached to the lower part of the housing.

EFFECT: target receiving the ERE plasma flow is at the same time a Langmuir probe, has a small size and does not have a noticeable effect on the flow parameters.

2 cl, 2 dwg