Ion wind flow accelerator and current density testing device thereof

Abstract

The invention discloses an ion wind flow accelerator which comprises an electrode consisting of a corona electrode and a collector, wherein the corona electrode is a needle tip discharge type corona electrode. Visibly, according to the ion wind flow accelerator provided by the embodiment of the invention, the electrode structure adopts the needle tip discharge mode, so that the discharging capability has unparalleled superiority relative to a conventional discharge mode. In addition, the invention also discloses a current density testing device of the ion wind flow accelerator. With the adoption of the current density testing device, in the testing process, an electric field in the electrode structure is not turbulented, electromagnetic interference is small, and the stability of the electric field in the electrode structure and the ion wind speed can be kept, so that the current density of the ion wind flow accelerator can be more accurately measured.

Description

technical field [0001] The invention relates to the field of plasma, in particular to an ion wind flow accelerating device and a current density testing device thereof. Background technique [0002] The history of ion wind can be traced back to 1709, when British scientist Francis Hauksbee first discovered the phenomenon of ion wind. In 1899, the British Chattock obtained a simple relationship between the pressure and current of the ion wind inclined plate through the experiment of a pair of flat electrodes, and quantitatively analyzed the ion wind phenomenon for the first time. [0003] "Air corona discharge" refers to the application of high voltage between electrodes with greatly different radii of curvature to induce ionization of the air near the electrodes with smaller radii of curvature. The ion wind airflow acceleration device is a device that uses the airflow generated by the ion movement during air discharge to accelerate the airflow. The process of ion wind gene...

AI Technical Summary

Problems solved by technology

[0010] b. Connect the current density meter directly to the collector, the test points are not enough, and the measurement is not accurate enough;

[0011] c. Use a pointer ammeter to measure the current value at a certain point, and the cycle of current change is often less than 1 / 10 second. Therefore, the traditional pointer ammeter cannot measure the current waveform (the current waveform refers to the current of each test point at the same time. The waveform formed by the current value);

[0012] d. The traditional pointer ammeter is easy to cause spark discharge and electromagnetic interference during the current test, causing the current in the electric field to change instantaneously, which affects the stability of the ion wind speed;

[0013] e. The traditional test device does not have a protection circuit, and the ammeter is easily damaged by electric shock

Images