公开(公告)号：US5461322A

公开(公告)日：1995-10-24

申请号：US102835

申请日：1993-08-06

申请人： Paul P. Bey, Jr. ,  Thomas L. Fare ,  David J. Yonce

发明人： Paul P. Bey, Jr. ,  Thomas L. Fare ,  David J. Yonce

IPC分类号： G01N27/02 ,  G01R17/06 ,  G01R17/02

CPC分类号： G01N27/02 ,  G01R17/06

摘要： A feedback operated DC bridge circuit for monitoring the voltage variations in a voltage divider circuit using a voltage controlled resistance component to reach a null balance across the bridge. Amplification is provided at higher accuracy near the null point when the voltage difference across the bridge is zero. The feedback bridge circuit includes an integrator which directly drives the controlling component to the value of the resistance in an unknown branch to force the null condition. The voltage controlled component (configured as a discrete metal oxide semiconductor device or bipolar junction transistor) and the balancing scheme are suitable for microfabrication and provides noise-rejection enhancement. The interconnected integral feedback of the autonulling DC bridge enables both a neural network for pre-processing sensor input in a spatial domain as well as general analog computation that mimics a first order differential equation in the form of the system state equation.

摘要翻译： 一个反馈操作的直流电桥电路，用于使用电压控制的电阻分量来监测分压器电路中的电压变化，以达到跨桥的零平衡。 当桥上的电压差为零时，在零点附近以更高的精度提供放大。 反馈桥接电路包括一个积分器，它将控制分量直接驱动到未知分支中的电阻值，以迫使空值。 电压控制部件（配置为离散金属氧化物半导体器件或双极结型晶体管）和平衡方案适用于微细加工，并提供噪声抑制。 自动直流电桥的互连整体反馈使神经网络能够预处理空间域中的传感器输入以及以系统状态方程式的形式模拟一阶微分方程的一般模拟计算。

公开(公告)号：US5264798A

公开(公告)日：1993-11-23

申请号：US783904

申请日：1991-10-29

申请人： Paul P. Bey, Jr. ,  Thomas L. Fare

发明人： Paul P. Bey, Jr. ,  Thomas L. Fare

IPC分类号： G01N27/02 ,  G01R17/06

CPC分类号： G01R17/06 ,  G01N27/028

摘要： A self-contained autonulling bridge circuit based on phase-sensitive deteon of an impedance to be measured is described. The system utilizes a feedback structure to control a variable impedance in order to establish the null of the bridge. The system utilizes a voltage-variable impedance having both resistance and capacitance and provides the phase sensitive relationship in the control means in order to provide highly accurate measurement of an unknown test impedance. The ability to measure small changes in impedance provides particularly useful application to the area of biological sensor impedance measurement or electrochemical impedance measurement using silicon-based devices.

摘要翻译： 描述了一种基于待测量阻抗的相敏检测的独立自适应桥接电路。 该系统利用反馈结构来控制可变阻抗，以建立桥的零点。 该系统利用具有电阻和电容两者的电压可变阻抗，并在控制装置中提供相位敏感关系，以便提供未知测试阻抗的高精度测量。 测量阻抗变化小的能力为使用硅基器件的生物传感器阻抗测量或电化学阻抗测量领域提供了特别有用的应用。

公开(公告)号：US07832269B2

公开(公告)日：2010-11-16

申请号：US11821421

申请日：2007-06-22

申请人： Paul P. Bey, Jr. ,  Craig S. Becke ,  Jamie W. Speldrich ,  Christopher M. Blumhoff

发明人： Paul P. Bey, Jr. ,  Craig S. Becke ,  Jamie W. Speldrich ,  Christopher M. Blumhoff

IPC分类号： G01F15/00 ,  G01K1/08 ,  G01N19/10

CPC分类号： G01D21/02

摘要： A combinational sensor system for measuring multiple measurands includes a flow transducer, a pressure transducer and a humidity transducer. The pressure and humidity transducers are provided with independent access to sensed media and are ratiometric to a supply voltage, whereas the flow sensor is sensitive to openings to the flow path. The combinational sensor system utilizes elastomeric seals that include patterned electrically conductive and non-conductive seals. An ASIC is generally associated with the combinational sensor, and is located on a patterned electrically conductive substrate lead frame or for signal conditioning in order to detect any of the sensed measurands. The transducers can be arranged in a manner that distributes the transducers to optimize the accuracy and response time of the combinational sensor system.

摘要翻译： 用于测量多个被测量的组合传感器系统包括流量传感器，压力传感器和湿度传感器。 压力和湿度传感器具有对感测介质的独立访问，并且与电源电压成比例，而流量传感器对流动路径的开口敏感。 组合传感器系统使用包括图案化导电和非导电密封件的弹性体密封件。 ASIC通常与组合传感器相关联，并且位于图案化的导电衬底引线框架上或用于信号调节以便检测任何感测的被测量。 换能器可以以分配换能器的方式布置，以优化组合传感器系统的精度和响应时间。