منابع مشابه
On MEMS equation with fringing field
where λ, δ > 0 and Ω ⊂ Rn is a smooth and bounded domain. We show that when the fringing field exists (i.e. δ > 0), given any μ > 0, we have uniform upper bound of classical solutions u away from the rupture level 1 for all λ ≥ μ. Moreover, there exists λδ > 0 such that there are at least two solutions when λ ∈ (0, λ ∗ δ); a unique solution exists when λ = λδ ; and there is no solution when λ >...
متن کاملElectrostatic fringing-field actuation for pull-in free RF-MEMS analogue tunable resonators
This paper presents the design, fabrication and measurement of the first pull-in free tunable evanescent-mode microwave resonator based on arrays of electrostatically actuated fringing-field RF-MEMS tuners. Electrostatic fringing-field actuation (EFFA) is the key on achieving a wide tunable frequency range that is not limited by the conventional pull-in instability. Furthermore, total lack of d...
متن کاملDC-dynamic biasing for > 50x switching time improvement in severely underdamped fringing-field electrostatic MEMS actuators
This paper presents the design and experimental validation of dc-dynamic biasing for > 50× switching time improvement in severely underdamped fringing-field electrostatic MEMS actuators. The electrostatic fringing-field actuator is used to demonstrate the concept due to its robust device design and inherently low damping conditions. In order to accurately quantify the gap height versus voltage ...
متن کاملFringing Electric and Magnetic Field Sensors
Fringing electric and magnetic field sensors are widely used for non-destructive measurements of material properties. A simple conventional fringing field sensor consists of a sensor head, a current or voltage source, an impedance measurement circuit, and data processing/data acquisition capability. The sensor head is usually a patterned array of electrodes or windings on an electrically insula...
متن کاملFringing field directed assembly of nanomaterials.
This letter reports on a new gas-phase printing approach to deposit nanomaterials into addressable areas on a surface with 50 nm lateral accuracy. Localized fringing fields that form around conventional resist patterns (PMMA and SiO2) with openings to a silicon substrate are used to direct the assembly of nanomaterials into the openings. Directed assembly was observed due to a naturally occurri...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2009
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-09-10226-5