公开(公告)号：US11982580B2

公开(公告)日：2024-05-14

申请号：US16976908

申请日：2019-03-01

Applicant: Universitat Basel Vizerektorat Forschung

Inventor： Tino Topper ,  Bekim Osmani ,  Bert Mueller

IPC: G01L1/14 ,  H10N30/098 ,  H10N30/20 ,  H10N30/857

CPC classification number: G01L1/146 ,  H10N30/098 ,  H10N30/206 ,  H10N30/857

Abstract: For improving the sensitivity, lifetime and energy consumption of a dielectric elastomer transducer (1) to be used as a sensor, it is suggested that a dielectric layer (3) enclosed by two electrodes (2) of the transducer (1) includes a nanoscale volume of a fluid (15) such that the dielectric layer (3) is rendered compressible and/or displaceable out of a volume enclosed by the two electrodes (2). The advantage of such a design is that, although the dielectric layer (3) and possible buffer layers (4) separating the electrodes (2) from the dielectric layer (3) may all have thicknesses in the order of a few μm or even in the sub-μm range, the transducer (1) is rendered highly compliant due to the movability of the fluid (15). In consequence, a large nominal capacitance of the transducer (1) as well as a large relative capacitance change (up to twenty times that of the nominal capacitance) can be achieved in conjunction with a very high sensitivity.