SYSTEMS AND METHODS FOR SWITCHED MULTI-TRANSDUCER PRESSURE SENSORS AND COMPENSATION THEREOF

    公开(公告)号:US20170343443A1

    公开(公告)日:2017-11-30

    申请号:US15162680

    申请日:2016-05-24

    IPC分类号: G01L19/04 G01L9/00

    摘要: Systems and methods are disclosed for a switched, multiple range sensor system including multiple transducers. In one embodiment, a method is provided that includes receiving and measuring at a first transducer and a second transducer, a pressure to generate a respective first and second pressure signal; amplifying the first and second pressure signals with corresponding first and second fixed-gain amplifier to generate first and second amplified pressure signals; selecting for monitoring, the first or second amplified pressure signal; converting the selected amplified pressure signal to an intermediate digital pressure signal; measuring, at a thermal sensor associated with the selected amplified pressure signal, a temperature; compensating, based on the measured temperature, the intermediate digital pressure signal to generate a compensated digital pressure output signal; and outputting the compensated digital pressure output signal.

    COMPENSATED PRESSURE SENSORS
    4.
    发明申请

    公开(公告)号:US20170160155A1

    公开(公告)日:2017-06-08

    申请号:US15434019

    申请日:2017-02-15

    IPC分类号: G01L13/02 G01L9/04

    摘要: Compensated pressure sensor includes a MEMS pressure sensor die having resistors RA and RD connected in series in a first leg of a Wheatstone bridge and resistors RB and RC connected in series in a second leg of the Wheatstone bridge; a first and second fuse; and a first, second, third, fourth, fifth and sixth resistor; wherein: a first end of the first resistor is connected in series with the first leg of the bridge and a first end of the second resistor is connected in series with the second leg of the bridge; the first fuse is connected, at a first end, to a first output of the bridge, and at a second end, to a second end of the third resistor and to a first end of the second fuse; the second fuse is connected, at a second end, to a second output of the bridge; a first end of the third resistor is connected to an input to the bridge and to a first end of the fourth resistor; a second end of the fourth resistor is connected to a second end of the first resistor, a second end of the second resistor and a first end of the sixth resistor; and the fifth resistor is connected, at a first end, to the input to the bridge.

    Compensating a sensor having thermal gradients
    5.
    发明授权
    Compensating a sensor having thermal gradients 有权
    补偿具有热梯度的传感器

    公开(公告)号:US09429491B2

    公开(公告)日:2016-08-30

    申请号:US14162108

    申请日:2014-01-23

    IPC分类号: G01L9/02 G01L9/06

    CPC分类号: G01L9/065

    摘要: Example embodiments of the disclosed technology methods, devices, and systems for compensating a sensor having thermal gradients. In one embodiment, a system is provided that includes a sensor, including a first half-bridge transducer configured to output a first pressure signal associated with a first received pressure; a first set of span resistors coupled to the first half-bridge transducer, and configured generate a first compensated pressure signal; a second half-bridge transducer, configured to output a second pressure signal associated with a second received pressure; and a second set of span resistors coupled to the second half-bridge transducer and configured to generate a second compensated pressure signal. The system includes an output port that is configured to output a signal associated with a difference between the first compensated pressure signal and the second compensated pressure signal.

    摘要翻译: 用于补偿具有热梯度的传感器的所公开的技术方法,装置和系统的示例实施例。 在一个实施例中,提供了一种系统,其包括传感器,包括配置成输出与第一接收压力相关联的第一压力信号的第一半桥换能器; 耦合到所述第一半桥换能器的第一组跨度电阻器,并且被配置为产生第一补偿压力信号; 第二半桥换能器,被配置为输出与第二接收压力相关联的第二压力信号; 以及耦合到所述第二半桥换能器并被配置为产生第二补偿压力信号的第二组跨度电阻器。 该系统包括输出端口,其被配置为输出与第一补偿压力信号和第二补偿压力信号之间的差相关联的信号。

    SENSOR SIGNAL DETECTION DEVICE
    6.
    发明申请
    SENSOR SIGNAL DETECTION DEVICE 有权
    传感器信号检测装置

    公开(公告)号:US20160209287A1

    公开(公告)日:2016-07-21

    申请号:US14914690

    申请日:2014-08-22

    申请人: DENSO CORPORATION

    发明人: Toru HIRAYAMA

    IPC分类号: G01L19/04

    CPC分类号: G01L19/04 G01L9/065

    摘要: Sensor signal detection device includes: a sensor element; a temperature detection element connected in series with the sensor element; a constant voltage power supply applying constant voltage to a series circuit of the temperature detection element and the sensor element; a short-circuit switch short-circuiting both terminals of the temperature detection element; and a controller controlling a changeover between a sensor detection state and a temperature detection state. In the sensor detection state, a sensor signal from the sensor element is obtained by turning on the short-circuit switch to apply the constant voltage across both terminals of the sensor element from the constant voltage power supply. In the temperature detection state, a temperature detection signal of the temperature detection element is obtained by turning off the short-circuit switch to connect the temperature detection element to the sensor element in series and applying constant voltage from the constant voltage power supply.

    摘要翻译: 传感器信号检测装置包括:传感器元件; 与传感器元件串联连接的温度检测元件; 对温度检测元件和传感器元件的串联电路施加恒定电压的恒压电源; 短路开关短路温度检测元件的两端; 以及控制器,其控制传感器检测状态和温度检测状态之间的切换。 在传感器检测状态下,通过接通短路开关来获得来自传感器元件的传感器信号,以从恒定电压电源施加传感器元件的两端的恒定电压。 在温度检测状态下,通过关闭短路开关来将温度检测元件串联连接到传感器元件并从恒压电源施加恒定电压来获得温度检测元件的温度检测信号。

    SEALED TRANSDUCER WITH EXTERNAL ADJUSTMENT PORT
    7.
    发明申请
    SEALED TRANSDUCER WITH EXTERNAL ADJUSTMENT PORT 有权
    带外部调整端口的密封式传感器

    公开(公告)号:US20160097690A1

    公开(公告)日:2016-04-07

    申请号:US14875376

    申请日:2015-10-05

    发明人: Wolf Landmann

    IPC分类号: G01L9/00

    摘要: Certain implementations of the disclosed technology may include systems, methods, and apparatus for a sealed transducer with an adjustment port. The sealed transducer may include one or more terminals. A first terminal may include electrical connections for connecting to an input voltage source, a ground, and for providing a transducer output signal. A second terminal, for example, may include an electrical port for connecting to an external and separately sealed adjustment network. In one example implementation, the adjustment network can include one or more components configured to couple with internal circuitry of the transducer to alter a response of the sensor.

    摘要翻译: 所公开技术的某些实施方案可以包括用于具有调节端口的密封换能器的系统,方法和装置。 密封的换能器可以包括一个或多个端子。 第一端子可以包括用于连接到输入电压源,接地和用于提供换能器输出信号的电连接。 例如,第二端子可以包括用于连接到外部和单独密封的调整网络的电气端口。 在一个示例实现中,调整网络可以包括被配置为与换能器的内部电路耦合以改变传感器的响应的一个或多个部件。

    High temperature transducer using SOI, silicon carbide or gallium nitride electronics
    10.
    发明授权
    High temperature transducer using SOI, silicon carbide or gallium nitride electronics 有权
    使用SOI,碳化硅或氮化镓电子器件的高温传感器

    公开(公告)号:US09105752B2

    公开(公告)日:2015-08-11

    申请号:US13623906

    申请日:2012-09-21

    IPC分类号: G01L9/00 H01L29/84 G01L9/06

    CPC分类号: G01L9/065 H01L29/84

    摘要: There is disclosed a high temperature pressure sensing system which includes a SOI, silicon carbide, or gallium nitride Wheatstone bridge including piezoresistors. The bridge provides an output which is applied to an analog to digital converter also fabricated using SOI, silicon carbide, or gallium nitride materials. The output of the analog to digital converter is applied to microprocessor, which microprocessor processes the data or output of the bridge to produce a digital output indicative of bridge value. The microprocessor also receives an output from another analog to digital converter indicative of the temperature of the bridge as monitored by a span resistor coupled to the bridge. The microprocessor has a separate memory coupled thereto which is also fabricated from SOI, silicon carbide, or gallium nitride materials and which memory stores various data indicative of the microprocessor also enabling the microprocessor test and system test to be performed.

    摘要翻译: 公开了一种高温压力感测系统,其包括SOI,碳化硅或包括压敏电阻的氮化镓惠斯通电桥。 该桥提供了一种应用于也使用SOI,碳化硅或氮化镓材料制造的模数转换器的输出。 模数转换器的输出被应用于微处理器,微处理器处理桥的数据或输出以产生指示桥值的数字输出。 微处理器还接收来自另一模数转换器的输出,其指示由耦合到桥的跨接电阻器监测的桥的温度。 微处理器具有耦合到其上的单独的存储器,其也由SOI,碳化硅或氮化镓材料制成,并且该存储器存储指示微处理器的各种数据,还使得能够执行微处理器测试和系统测试。