| 摘要 |
A resonance circuit with a variable resonance frequency provided by a variable capacitor having compliant electrodes arranged on a deformable sheet. When the sheet is deformed the capacitance is varied. Further a sensing element comprising the resonance circuit and a sensing system comprising at least one sensing element, a sending unit and a receiving unit. Suitable for mass production. Provides wireless sensing system being cost effective to manufacture. May be used for low cost products, such as toys. May also be used for monitoring displacements in structures, e.g. cracks in wall structures. Further a positions sensitive pressure sensor with pressure sensors arranged on a two-dimensional structure.
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