Most of people have the habit of not cutting off power when equipment is shut down. This wastes a large amount of power. In view of this situation, an intelligent socket is proposed, which can produce operating states of electrical equipment through human-machine interaction and memorize these states in its non-volatile memory. With the number of use increasing, the socket can store more and more the running states of appliances and become more and more intelligent, which can make it cut off the power when appliances stop running and save a lot of power. This paper discusses the basic architecture of this kind of socket, abstracts two-tuple status model memorizing the running states of appliances, and designs the control algorithm based on the status model which can produce new running states or adjust old running states and yield instructions to power on or power off the socket.
Fluorocarbon films with different structural and optical properties were deposited by Pulsed Plasma Thruster. The film composition and chemical structure was investigated with XPS. Transmittance and reflectance of the films were tested using UV-vis spectrometer. The results showed that, each sample basically has a strong absorption property for wavelength below 600nm and relatively weak absorption property for wavelength over 600nm. Chemical composition and structure influenced the optical properties of the films and different transmittance and reflectance was observed at different angle.
A current-model Triple Langmuir probe was developed and used to measure electron temperature and density of the Pulsed Plasma Thruster plume. To decreasing the errors in measurement, Probe, collection circuit and glow cleaning devices were elaborately designed. A FIR digital Filter based on Matlab was designed and the software for date processing was developed by Labview. Measurements were taken at various position in the plume of a Pulsed Plasma Thruster operating at discharge energy of 6-24J. The results show the thruster plume has electron temperatures in the range between 0.6and 5.4eV, electron densities between 0.9×1019 and 4.1x1021m-3 for all discharge energy levels considered. Electron temperature and density decrease with increasing angle away from the centerline and with decreasing discharge energy.
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