Overload resistant differential pressure sensor
    12.
    发明授权
    Overload resistant differential pressure sensor 失效
    超载差压传感器

    公开(公告)号:US06598482B2

    公开(公告)日:2003-07-29

    申请号:US10172131

    申请日:2002-06-14

    IPC分类号: G01L1500

    摘要: A differential pressure sensor has a first and a second measuring chamber. Each measuring chamber is limited by a rigid carrier plate and a diaphragm plate, which is formed in the region of the measuring chamber as a pressure-sensitive measuring diaphragm. To design the differential pressure sensor to be resistant to overloading, the carrier plate is arranged between a first and a second diaphragm plate and has congruent concave depressions on opposite sides in the plane of the plate. The depressions are connected to one another by a decentered duct, penetrating the carrier plate perpendicularly to the plane of the plates. In the region of the measuring chambers, the diaphragm plates are formed congruently in relation to the depressions as pressure-sensitive measuring diaphragms. The measuring chambers and the duct are filled with an incompressible fluid.

    摘要翻译: 差压传感器具有第一和第二测量室。 每个测量室由刚性载体板和隔膜板限制,该板在测量室的区域中形成为压敏测量膜片。 为了设计差压传感器以防止过载,承载板布置在第一和第二隔膜板之间,并且在板的平面的相对侧上具有一致的凹陷。 凹陷通过偏心的管道相互连接,垂直于板的平面穿透载体板。 在测量室的区域中,隔板相对于凹陷形成为压敏测量隔膜。 测量室和管道填充有不可压缩流体。

    Capacitive differential pressure sensor

    公开(公告)号:US06568275B2

    公开(公告)日:2003-05-27

    申请号:US10172275

    申请日:2002-06-14

    IPC分类号: G01L912

    CPC分类号: G01L9/0073

    摘要: There is described a capacitive differential pressure sensor made using glass-silicon technology with a diaphragm plate of silicon, which is arranged between two carrier plates consisting of glass. The diaphragm plate has pressure-sensitively deflectable regions, which are respectively provided with a capacitor arrangement. The capacitor arrangement is connected to a measured-value processing device through connecting conductors. To improve the ratio of the measuring capacitances to the parasitic capacitances brought about by the connecting conductors, the diaphragm plate is outside the pressure-sensitively deflectable region the substrate of an electronic circuit which comprises at least one input stage of the measured-value processing device.

    Differential pressure sensor
    14.
    发明授权

    公开(公告)号:US06536288B2

    公开(公告)日:2003-03-25

    申请号:US10172132

    申请日:2002-06-14

    IPC分类号: G01L912

    CPC分类号: G01L9/0073

    摘要: There is described a differential pressure sensor made using glass-silicon technology with a diaphragm plate arranged between two carrier plates. To achieve a high resolution at the beginning of the measuring range in conjunction with high overload resistance, the measuring diaphragm plate of the sensor has for a prescribed measuring range within the same measuring chambers a plurality of mutually independent deflectable regions as measuring diaphragms. Each such region acts as a part-sensor with a part-measuring range. The part-measuring ranges of the part-sensors overlap and in total are equal to the prescribed measuring range of the differential pressure sensor. The displacement of the measuring diaphragm of each part-sensor is mechanically limited outside its part-measuring range by the carrier plates.

    Apparatus and method for providing dual output signals in a telemetry
transmitter
    19.
    发明授权
    Apparatus and method for providing dual output signals in a telemetry transmitter 失效
    在遥测发射机中提供双输出信号的装置和方法

    公开(公告)号:US5871451A

    公开(公告)日:1999-02-16

    申请号:US884859

    申请日:1997-06-30

    IPC分类号: A61B5/00 A61B5/0428 A61B5/04

    摘要: Telemetry transmitting apparatus and a method are provided for reception and transmission of heart related electrical signals, such as electrocardiogram (EKG) and/or cardiac pacemaker signals, from a plurality of electrodes coupled to the body of a medical patient. A receiving facility of the apparatus receives a plurality of analog signals representing at least the EKG signals. An output signal representing the EKG signals is formed and transmitted, via a wireless coupling, to a telemetry receiver. An analog output port is provided on the telemetry transmitting apparatus. The analog output port is also coupled to the receiving facility. A plurality of output signals representing the EKG signals is provided to the analog output port of the telemetry transmitting apparatus. The analog output port may be coupled to buffers at the input terminals of the apparatus. Alternatively, the output port may receive processed signals from the amplifier in the telemetry transmitter that are gain adjusted to emulate the unprocessed voltage signals of the EKG electrodes and then combined with a digital pace pulse signal so that the output signals include pacemaker pulse information.

    摘要翻译: 提供遥测发射装置和方法,用于从耦合到医疗患者的身体的多个电极接收和传输与心脏相关的电信号,例如心电图(EKG)和/或心脏起搏器信号。 设备的接收设备接收表示至少EKG信号的多个模拟信号。 形成表示EKG信号的输出信号,并通过无线耦合将其发送到遥测接收机。 模拟输出端口设置在遥测发送装置上。 模拟输出端口也耦合到接收设备。 表示EKG信号的多个输出信号被提供给遥测发送装置的模拟输出端口。 模拟输出端口可以耦合到设备输入端的缓冲器。 或者,输出端口可以接收来自遥测发射器中的放大器的经处理的信号,该增益被调整以仿真EKG电极的未处理电压信号,然后与数字起搏脉冲信号组合,使得输出信号包括起搏器脉冲信息。