会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Electroacoustic transducer of the so-called
    • 所谓“驻极体”型的电声换能器,以及制造这种传感器的方法
    • US4910840A
    • 1990-03-27
    • US385150
    • 1989-07-26
    • Adrianus J. SprenkelsPiet Bergveld
    • Adrianus J. SprenkelsPiet Bergveld
    • H04R19/01
    • H04R19/01Y10T29/43Y10T29/49005
    • This invention provides an electroacoustic transducer and a method of making it. The transducer according to the invention comprises a substrate of a semiconductor material with a recessed portion. A membrane is stretched across the recessed portion, which membrane is set in vibration in response to an input signal comprising audio and/or ultrasonorous frequencies. A pair of electrodes is provided, which form a capacitor, and between which an electric field is present. The electrodes are so arranged relatively to the membrane that the capacitance of the capacitor can vary under the influence of vibrations of the membrane, so that acoustic signals are converted into electric signals. A layer of an electrically insulating material functions as a carrier for an electric charge to provide an auxiliary electric field between the electrodes. The transducer is characterized in that the peripheral edge of the substrate, which is raised relatively to the recessed portion, has a set of openings formed in it, each extending through the substrate. The membrane is attached through the openings to the peripheral edge.
    • 本发明提供一种电声换能器及其制造方法。 根据本发明的换能器包括具有凹陷部分的半导体材料的衬底。 膜跨过凹部拉伸,该膜响应于包括音频和/或超声频率的输入信号而被设置在振动中。 提供一对电极,其形成电容器,并且其间存在电场。 这些电极相对于膜布置得如此,电容器的电容可以在膜的振动的影响下变化,从而将声信号转换成电信号。 电绝缘材料层用作电荷的载体,以在电极之间提供辅助电场。 传感器的特征在于,相对于凹部凸起的衬底的周缘具有形成在其中的一组开口,每个开口延伸穿过衬底。 膜通过开口连接到周边边缘。
    • 6. 发明授权
    • Microdialysis-probe integrated with a si-chip
    • 微透析探针与si芯片集成
    • US06463312B1
    • 2002-10-08
    • US09601873
    • 2000-09-12
    • Piet BergveldSebastian BohmWouter Olthuis
    • Piet BergveldSebastian BohmWouter Olthuis
    • A61B505
    • A61B5/14528
    • Microdialysis device (10), comprising at least a probe (1) provided with an inlet (2) and an outlet (3) for bringing a perfusion fluid into contact with a bodily fluid in a part of a living organism and causing constituents from this fluid to be taken up by this perfusion fluid, whereby the perfusion fluid is enriched to dialysate, wherein the outlet (3) is integrally received in a silicon chip (5) and debouches in a first fluid channel (6) formed in this silicon chip (5) and wherein further at least one analysis means, for instance an ISFET (17, 18), for analysing constituents of the bodily fluid taken up by the perfusion fluid is integrally received in the silicon chip (5) in a manner such that dialysate flowing from the outlet (3) comes into contact with said analysis means in the first fluid channel (6), and wherein the silicon chip (5) is further optionally provided with pumping means (50) or dosing means.
    • 微透析装置(10)包括至少一个设置有入口(2)和出口(3)的探针(1),用于使灌注流体与生物体的一部分中的体液接触并引起来自该生物体的成分 流体被该灌注流体吸收,从而使灌注流体富集成透析液,其中出口(3)整体地容纳在硅芯片(5)中,并且在形成于该硅芯片中的第一流体通道(6)中脱模 (5),并且其中另外至少一个分析装置,例如用于分析由灌注流体吸收的体液的成分的ISFET(17,18)以这样的方式被一体地接收在硅芯片(5)中: 从出口(3)流出的透析液与第一流体通道(6)中的分析装置接触,并且其中硅芯片(5)还可选地设置有泵送装置(50)或给料装置。
    • 8. 发明授权
    • Electrochemical sensing apparatus with in situ calibration
    • 具有原位校准的电化学传感装置
    • US4478222A
    • 1984-10-23
    • US242351
    • 1981-03-10
    • Gerrit KoningPiet Bergveld
    • Gerrit KoningPiet Bergveld
    • A61B5/00G01N27/28G01N27/416
    • A61B5/14542A61B5/1473A61B5/1495G01N27/28G01N27/4163G01N27/4165
    • An in vivo electrochemical monitoring device is formed by a catheter-like member which terminates in a closed end having a wall with a fixed opening to admit fluid to be tested, such as blood in an artery. An electrochemical sensor, such as an ISFET device for monitoring the concentration of a particular ion in blood, is mounted inside the tube at a fixed location below the opening preferably a larger sensing chamber. an infusion channel in the tube is arranged to flood the sensor with a fluid of known chemical properties so that the sensor output can be calibrated. Under pressure the calibration fluid expels the test fluid out of the tube or chamber via the fixed opening. A method of constructing a suitable chamber on an ISFET wafer is also disclosed.
    • 体内电化学监测装置由导管状构件形成,该导管状构件终止于具有固定开口的壁的封闭端,以允许待测流体例如动脉中的血液。 诸如用于监测血液中特定离子的浓度的ISFET装置的电化学传感器安装在管内部位于开口下方的固定位置处,优选地是较大的感测室。 管中的输液通道布置成用已知化学特性的流体对传感器进行灌注,从而可以校准传感器输出。 在压力下,校准流体经由固定开口将测试流体排出管或室。 还公开了在ISFET晶片上构建合适腔室的方法。