Pluggable totally-enclosed Faraday probe

Abstract

The invention relates to a plug-in type totally-closed Faraday probe which comprises a protection ring, a collector, an insulator, a base and a rear cover. The collector, the insulator, the base and the rear cover are detachably connected in sequence, the outer side of the collector is sleeved with the protection ring, a gap is formed between the protection ring and the collector, and the design value of the gap needs to ensure that a sheath layer on the surface of the collector is uniform. The Faraday probe and the data acquisition line are connected through a banana plug and a banana socket, the Faraday probe and the data acquisition line are connected to a clamp for use through the threaded end of the rear cover, and the Faraday probe is integrally in plug-in connection and cylindrical integrated appearance. The plug-in type totally-closed Faraday probe provided by the invention is simple, convenient and easy to disassemble, has an attractive appearance, can be adapted to ion current density measurement of different thrusters, and can prevent clutter signals from being collected.

Description

technical field [0001] The invention belongs to the field of space electric propulsion technology and the field of Faraday probes in aerospace equipment technology, in particular to a plug-in fully enclosed Faraday probe. Background technique [0002] The electric thruster is a device that uses the plasma ionized by the working fluid to accelerate and draw in the electromagnetic field to obtain thrust. Compared with traditional chemical thrusters, it can achieve high specific impulse and greatly reduce the mass of propellant. For tasks with large total impulse in spaceflight, such as long-term orbit maintenance, lunar exploration, and deep space exploration, electric propulsion has become the most Promising way forward. [0003] For the discharge performance of electric thrusters, the common research and test methods include contact diagnosis method and non-contact diagnosis method. The Faraday probe is a contact diagnostic tool for space electric thrusters. It is used to ...

AI Technical Summary

Problems solved by technology

The existing Faraday probes are complicated to assemble and disassemble, and the appearance is not beautiful enough

[0009] 3. The existing Faraday probe wiring mainly uses the welding method or the nut crimping method, but these methods cannot avoid the collection of ions or electrons at the exposed wiring, which makes the data measured by the Faraday probe inaccurate and contains impurities. wave signal

Among them, the welding method wiring is a one-time wiring, which cannot be disassembled and assembled many times.

[0010] In summary, the current design of Faraday probes has many shortcomings and problems, and it is urgent to develop an easily disassembled and closed Faraday probe, but this direction is still blank

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