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公开(公告)号：US09528896B2
公开(公告)日：2016-12-27
申请号：US13839238
申请日：2013-03-15
发明人： Errol P. EerNisse , Milton Watts
IPC分类号： H01L41/113 , H03H9/19 , G01L11/04 , E21B47/06
CPC分类号： G01L9/085 , E21B47/06 , G01L11/04 , H01L41/1132 , H03H9/19
摘要： A cylindrical quartz crystal transducer that exhibits a low probability of twinning, and uses a combination of resonator signal inputs at the B-mode and C-mode frequencies to calculate resonator temperature. Crystallographic orientations are disclosed where combinations of B-mode and C-mode resonant frequencies exist that are sufficiently independent of pressure to enable accurate calculation of temperature under transient conditions. Such a transducer is usable at higher pressures and temperatures than conventional quartz pressure transducers. Furthermore, because the structure allows a choice of crystallographic orientation, other characteristics of the transducer, such as increased pressure sensitivity and activity dip-free operation, may be optimized by varying crystallographic orientation.
摘要翻译： 一种圆柱形石英晶体传感器，其结晶度很低，并且以B模式和C模式频率的谐振器信号输入的组合来计算谐振器温度。 公开了晶体取向，其中存在足够独立于压力的B模式和C模式谐振频率的组合，以使得能够在瞬态条件下精确计算温度。 这种传感器可在比传统的石英压力传感器更高的压力和温度下使用。 此外，由于该结构允许选择晶体取向，所以可以通过改变晶体取向来优化换能器的其它特性，例如增加的压力灵敏度和活性浸没操作。
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公开(公告)号：US09523621B2
公开(公告)日：2016-12-20
申请号：US13793450
申请日：2013-03-11
申请人： DENSO CORPORATION
发明人： Keita Oomi
摘要： An electronic control system includes a microcomputer and a signal processing circuit, and receives output signals of an in-cylinder pressure sensor and a crank angle sensor. The output signal of the pressure sensor indicates an output voltage of a piezoelectric transducer and a reference voltage. The signal processing circuit includes a hold circuit and a differential amplifier circuit. The differential amplifier circuit amplifies a difference between the output signal of the pressure sensor and the output signal of the hold circuit and outputs the result to the microcomputer. The hold circuit switches over the output signals in response to a switchover instruction of the microcomputer. When the switchover instruction is a set instruction, the hold circuit holds as its output signal the output signal of the pressure sensor outputted at the time of receiving the set instruction. The microcomputer outputs the set instruction to the hold circuit in response to the output signal of the crank angle sensor.
摘要翻译： 电子控制系统包括微型计算机和信号处理电路，并且接收缸内压力传感器和曲柄角传感器的输出信号。 压力传感器的输出信号表示压电换能器的输出电压和参考电压。 信号处理电路包括保持电路和差分放大电路。 差分放大器电路放大压力传感器的输出信号与保持电路的输出信号之间的差，并将结果输出到微计算机。 保持电路响应于微计算机的切换指令切换输出信号。 当切换指令为设定指令时，保持电路作为其输出信号保持接收设定指令时输出的压力传感器的输出信号。 微型计算机响应于曲轴转角传感器的输出信号将设定指令输出到保持电路。
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23.发明申请公开(公告)号：US20160054188A1
公开(公告)日：2016-02-25
申请号：US14932204
申请日：2015-11-04
发明人： Yusuke MATSUZAWA
CPC分类号： G01L7/082 , G01C5/00 , G01C5/06 , G01C21/28 , G01L9/0054 , G01L9/085 , H01L27/07 , H01L41/042
摘要： A physical quantity sensor includes a semiconductor substrate, a diaphragm section that is disposed on the semiconductor substrate and is flexurally deformed when receiving pressure, a sensor element that is disposed on the diaphragm section, an element-periphery structure member that is disposed on one surface side of the semiconductor substrate and forms a cavity section together with the diaphragm section, and a semiconductor circuit that is provided on the same surface side as the element-periphery structure member of the semiconductor substrate.
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24.发明授权公开(公告)号：US08912852B2
公开(公告)日：2014-12-16
申请号：US13513854
申请日：2010-11-30
申请人： Oivind Godager
发明人： Oivind Godager
CPC分类号： G01L9/0022 , E21B47/06 , G01K7/32 , G01L9/085 , G01L19/04
摘要： A quartz transducer having four or more crystal-controlled oscillators intended for measurement of applied pressure and temperature. All four oscillators are controlled by crystal quartz resonators operating in the thickness-shear mode. Two crystals measure the pressure and temperature respectively. A third crystal is a reference, and the fourth crystal may be another reference crystal or a second temperature crystal. The output of the latter is either phase leading or phase lagging the thermal response of the main temperature sensor.
摘要翻译： 具有四个或更多个晶体控制振荡器的石英换能器，用于测量施加的压力和温度。 所有四个振荡器由在厚度剪切模式下运行的晶体石英谐振器控制。 两个晶体分别测量压力和温度。 第三晶体是参考，第四晶体可以是另一个参考晶体或第二温度晶体。 后者的输出是相位超前或相位滞后于主温度传感器的热响应。
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公开(公告)号：US20130275070A1
公开(公告)日：2013-10-17
申请号：US13793450
申请日：2013-03-11
申请人： DENSO CORPORATION
发明人： Keita OOMI
IPC分类号： G01L19/04
摘要： An electronic control system includes a microcomputer and a signal processing circuit, and receives output signals of an in-cylinder pressure sensor and a crank angle sensor. The output signal of the pressure sensor indicates an output voltage of a piezoelectric transducer and a reference voltage. The signal processing circuit includes a hold circuit and a differential amplifier circuit. The differential amplifier circuit amplifies a difference between the output signal of the pressure sensor and the output signal of the hold circuit and outputs the result to the microcomputer. The hold circuit switches over the output signals in response to a switchover instruction of the microcomputer. When the switchover instruction is a set instruction, the hold circuit holds as its output signal the output signal of the pressure sensor outputted at the time of receiving the set instruction. The microcomputer outputs the set instruction to the hold circuit in response to the output signal of the crank angle sensor.
摘要翻译： 电子控制系统包括微型计算机和信号处理电路，并且接收缸内压力传感器和曲柄角传感器的输出信号。 压力传感器的输出信号表示压电换能器的输出电压和参考电压。 信号处理电路包括保持电路和差分放大电路。 差分放大器电路放大压力传感器的输出信号与保持电路的输出信号之间的差，并将结果输出到微计算机。 保持电路响应于微计算机的切换指令切换输出信号。 当切换指令为设定指令时，保持电路作为其输出信号保持接收设定指令时输出的压力传感器的输出信号。 微型计算机响应于曲轴转角传感器的输出信号将设定指令输出到保持电路。
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26.发明授权Sensor element having at least one measurement element with piezoelectric and pyroelectric properties 有权传感器元件具有至少一个具有压电和热电特性的测量元件公开(公告)号：US07618188B2
公开(公告)日：2009-11-17
申请号：US11664498
申请日：2005-10-07
IPC分类号： G01K5/00
CPC分类号： H01L41/1132 , G01L1/16 , G01L9/085 , G01P1/006 , G01P15/09
摘要： A sensor element (1) has at least one measurement element (2) with piezoelectric and pyroelectric properties, and measurement electrodes (3). A measurement variable and a disturbance variable act simultaneously upon the at least one measurement element (2) and the measurement signal derived from the measurement electrodes (3) includes an interference signal. The sensor element (1) has at least one compensation element (4, 4′) upon which only the disturbance variable acts, so that a correction signal used to compensate for the interference signal in the measurement signal can be derived from the compensation element (4, 4′). The invention consists in that the compensation element (4, 4′) is in thermal contact with a first support (10) and with a second support (11) of the measurement element (2), or with the measurement element (2), over its length between the supports (10, 11), so that substantially the same temperature field is established in the measurement element (2) and in the compensation element (4, 4′).
摘要翻译： 传感器元件（1）具有至少一个具有压电和热电特性的测量元件（2）和测量电极（3）。 测量变量和干扰变量同时作用在至少一个测量元件（2）上，并且从测量电极（3）导出的测量信号包括干扰信号。 传感器元件（1）具有至少一个补偿元件（4,4'），在该补偿元件（4,4'）上只有干扰变量起作用，使得用于补偿测量信号中的干扰信号的校正信号可以从补偿元件 4，4'）。 本发明包括：补偿元件（4,4'）与测量元件（2）的第一支撑件（10）和第二支撑件（11）热接触，或与测量元件（2）热接触， 在支撑件（10,11）之间的长度上，使得在测量元件（2）和补偿元件（4,4'）中建立基本相同的温度场。
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公开(公告)号：US20060283255A1
公开(公告)日：2006-12-21
申请号：US11509397
申请日：2006-08-25
申请人： Vinayak Tilak , Jie Jiang , David Shaddock , Stacey Kennerly , David Esler , Aaron Knobloch
发明人： Vinayak Tilak , Jie Jiang , David Shaddock , Stacey Kennerly , David Esler , Aaron Knobloch
IPC分类号： G01L9/00
CPC分类号： G01H9/00 , G01L1/044 , G01L1/148 , G01L1/16 , G01L9/0052 , G01L9/0073 , G01L9/0075 , G01L9/008 , G01L9/085 , G01L19/0681
摘要： A high-temperature pressure sensor that includes a dielectric layer. The pressure sensor also includes a substrate capable of withstanding temperatures greater than 450° C. without entering a phase change, at least one semiconducting material deposited on the sapphire substrate, and a silicon dioxide layer deposited over the semiconducting material. One aspect of the pressure sensor includes a second semiconducting material.
摘要翻译： 一种包括电介质层的高温压力传感器。 压力传感器还包括能够耐受大于450℃的温度而不进入相变的衬底，沉积在蓝宝石衬底上的至少一种半导体材料和沉积在半导体材料上的二氧化硅层。 压力传感器的一个方面包括第二半导体材料。
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公开(公告)号：US20040075498A1
公开(公告)日：2004-04-22
申请号：US10433330
申请日：2003-10-30
发明人： Masayoshi Matsui , Koji Okazaki
IPC分类号： H03F013/00
摘要： An object of the present invention is to provide a charge amplifier which can be operated at low cost so that electric charge generated in a piezoelectric pressure sensor having one end grounded is converted into a voltage signal. In the charge amplifier (1) according to an embodiment of the present invention, a plus side power source input terminal of an operational amplifier (5) is connected to a plus power source (null5 V) while a minus side power source input terminal of the operational amplifier (5) is grounded, so that the operational amplifier (5) is supplied with a single power source. Further, an offset voltage lower than the plus power source voltage but higher than the ground potential is applied to a non-inverted input terminal of the operational amplifier (5). Accordingly, change of pressure in both positive and negative directions can be converted into a voltage signal with the offset voltage as its center though the operational amplifier (5) is driven by a single power source. That is, cost can be suppressed because a double power source is not required.
摘要翻译： 本发明的目的是提供一种可以以低成本操作的电荷放大器，使得在具有一端接地的压电式压力传感器中产生的电荷被转换为电压信号。 在根据本发明的实施例的电荷放大器（1）中，运算放大器（5）的正侧电源输入端连接到正电源（+ 5V），而负侧电源输入端 运算放大器（5）接地，使得运算放大器（5）被提供有单个电源。 此外，低于正电源电压但高于接地电位的偏移电压被施加到运算放大器（5）的非反相输入端子。 因此，通过运算放大器（5）由单个电源驱动，正负方向的压力变化可以转换为以偏移电压为中心的电压信号。 也就是说，可以抑制成本，因为不需要双电源。
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公开(公告)号：US4577510A
公开(公告)日：1986-03-25
申请号：US647782
申请日：1984-09-06
申请人： Anthony J. Bur , Steven C. Roth
发明人： Anthony J. Bur , Steven C. Roth
CPC分类号： G01L9/0001 , G01L9/085 , Y10S73/04
摘要： Accurate dynamic pressure data in a changing thermal environment is obtained through the use of a pressure gage formed from polyvinylidene fluoride (PVDF) polymer material. The temperature compensation pressure gage has three major elements: an active PVDF transducer which obtains remote pressure readings which are uncorrected for thermal effects; a thermocouple having a short rise time allowing an output thermal signal which dynamically responds to changing thermal conditions; and a compensation amplifier circuit receiving the uncorrected pressure readings and the dynamic thermal signal and producing an output signal representing accurate pressure data which is corrected for changing thermal conditions. Also disclosed are the details of making an active PVDF transducer.
摘要翻译： 通过使用由聚偏二氟乙烯（PVDF）聚合物材料形成的压力表获得在变化的热环境中的精确动态压力数据。 温度补偿压力表有三个主要元素：主动PVDF传感器，获得未校正的热效应的远程压力读数; 具有短的上升时间的热电偶，允许动态地响应于变化的热条件的输出热信号; 以及补偿放大器电路，其接收未校正的压力读数和动态热信号，并产生表示精确压力数据的输出信号，该数据被校正以改变热条件。 还公开了制造活性PVDF传感器的细节。
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公开(公告)号：US4455875A
公开(公告)日：1984-06-26
申请号：US333494
申请日：1981-12-22
申请人： Andre Guimard , Jacques Lemarchand
发明人： Andre Guimard , Jacques Lemarchand
CPC分类号： E21B36/003 , E21B47/06 , G01L9/0001 , G01L9/085
摘要： A pressure measurement sonde of the type comprising two piezoelectric detectors, one being used for pressure measurements and the other being used as a reference detector. The latter is used to compensate at least partly, the effects due to temperature variations. This sonde includes means for favoring the heat exchanges of said detectors with the surrounding medium and for substantially balancing the heat exchange rates of each of said detectors with the surrounding medium. The sonde is particulary adapted to the carrying out of pressure measurements in oil wells.
摘要翻译： 一种压力测量探头，其类型包括两个压电检测器，一个用于压力测量，另一个用作参考检测器。 后者用于至少部分地补偿由于温度变化引起的影响。 该探头包括用于有利于所述检测器与周围介质的热交换并且用于基本平衡每个所述检测器与周围介质的热交换速率的装置。 探头特别适用于在油井中进行压力测量。
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