Abstract:
본 발명은 엘리먼트(1) 내의 스트레인을 측정하고 원격적으로 모니터링 하기 위한 시스템(10)을 제공하며, 상기 엘리먼트(1)는 스트레인 센서(20), 스트레인 데이터를 원격 위치로 전송하기 위한 원격측정 회로(40) 및 상기 데이터를 수신하고 에너지를 상기 원격측정 회로로 전달하기 위한 판독기 모듈(60)을 가진다.
Abstract:
Method of adjusting the preload of a surface acoustic wave (SAW) based pressure sensor package by producing marks, involving small zones of plastic deformation, on the outside of the lid of the sealed package.
Abstract:
A sensor package generally includes a substrate and one or more sensing elements, located on a surface of the substrate. A lid, such as for example a glass cap, is coupled to the substrate such that the lid and substrate define a sealed cavity accommodating the sensing element(s). The lid has at least one conductive via or well electrically coupled to the sensing element(s) inside the cavity and arranged so as to provide an electrical connection to the exterior of the lid for connecting with external circuitry. The substrate can be a piezoelectric substrate and each sensing element can consist of an interdigital transducer such that the substrate and interdigital transducer(s) define a surface acoustic wave sensor. A surface acoustic wave sensor system for sensing torque includes the sensor package and leads wire bonded to the conductive vias for attaching the sensor package to an antenna.
Abstract:
A silicon or quartz wafer for forming a SAW device is the subject of grinding and lapping operations to fonn it basic shape. The opposing surfaces, as well as the edges extending therebetween, are the polished to reduce the number and size of defects in the surfaces. Metal is deposited onto one of the opposing surfaces which, in use, will be under compression, to form electronic components thereon, and a multi-metallic coating having an outer layer formed of gold is applied to the other surface to form a solder pad by means of which the wafer may be fastened to a shaft or the like by soldering
Abstract:
PURPOSE: A pressure sensor with a nanostructure and a manufacturing method thereof are provided to improve a response speed and the sensitivity of a sensor due to the nanostructure adhered to the surface of the sensor. CONSTITUTION: A pressure sensor(100) with a nanostructure comprises a substrate(110), a source electrode(120), a drain electrode(130), and flexible sensor layer(140). The source and the drain electrodes are arranged separately on the substrate on a predetermined distance. The flexible sensor layer is arranged on the source and drain electrodes. The nanostructure adhered to a surface of the flexible sensor layer includes a zigzagged portions of a nano size.