電氣工程外文翻譯---一種基于單壁碳納米管的納米可調(diào)諧壓力開關(guān)系統(tǒng)的設(shè)計-電氣類-wenkub
2023-01-30 03:08:22 本頁面
【正文】 ntil it reaches SWNT39。s is restricted because Gao et al.(1998)bsowed when SWNT diameter exceeds a limit, its natural shape is collapsed form. Thus, it is imposssible to use them in this system. Consequently, the pressure sensor only is able to sense retricted number of pressure(SWNTs39。 therefore, they are neglected in this study. The system obeys the classical beam equation Which is highly nonelinear. Therefore, it has no analytical solution. Without losing the generality, it is possible to use lump model derived by Dequensenes et al.(2021) which assumes bending electrostatic force distribution is uniform before Pullin phenomenon happens. The pullin voltage for a lump model is calcuated by: That rinit is the initial distance between SWNT and ground plane and rpl=2rinit/3 is the distance which Pullin happens. By considering RNT as a function of applied pressure, the relation between Pullin voltage and applied pressure is obtained(). In consequence, the mechanism of suggested pressure switch consists of a both end fixed SWNT, a conductive ground plane and a tuneable voltage source to induce voltage between the SWNT and the ground plane(). CONCLUSIONS In summary, a tuneable pressure switch has been obtained which uses only one SWNT and its mechanism run as following: When a Pullin voltage related to a certain pressure is induced to the system, the SWNT does not kink and does not on the ground plane, until the applied pressure reaches to that certain due to the application of pressure and voltage, SWNT collapses on the ground plane, because both of them are conductive, an electric circuit is closed and the switch is considered a result, its sensing and switching mechanism is much simpler in parison to previous presented pressure sensor because a plicated system which is able to sense the difference between a conductive and semi conductive material is eliminated. The recent system, also, is able to switch at any desire pressure which is obtainable by its resolution within is sensing range(Its pressure sensing range is between zero and used SWNT the first transition pressure). Hence, it is not restricted to few pressure of limited numbers of SWNT39。這種現(xiàn)象顯示的是單壁碳納米管直徑的函數(shù)。在這項研究中，這些功能是由于采用一個可調(diào)諧的壓力開關(guān)。在這種情況下，單壁碳納米管的物理性質(zhì)的改變并且 其截面變成橢圓
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