公开(公告)号：US20240019321A1

公开(公告)日：2024-01-18

申请号：US18205614

申请日：2023-06-05

Applicant: Qorvo US, Inc.

Inventor： Mong Yang ,  Julius Minglin Tsai

IPC: G01L1/22 ,  G01L9/06 ,  G01L9/04

CPC classification number: G01L1/2281 ,  G01L9/065 ,  G01L9/045

Abstract: Systems and methods for temperature coefficient of offset compensation for a resistance bridge are disclosed. In one aspect, one or more current sources are added in parallel to resistance elements within a resistance bridge. The current source(s) may be selectively switched on and adjusted by a control circuit based on readings from a temperature sensor. In this fashion, the temperature induced variations in the resistance may be canceled or corrected allowing for better performance of the resistance bridge.

公开(公告)号：US11714015B1

公开(公告)日：2023-08-01

申请号：US17656985

申请日：2022-03-29

Applicant: Rosemount Aerospace Inc.

Inventor： Brandon T. Berg ,  Brian A. Gilkison

IPC: G01L9/04

CPC classification number: G01L9/045

Abstract: Apparatus and associated methods relate to sensing pressure and mitigating the error introduced by the thermoelectric effect. A pressure sensing device includes a pressure sensor, a temperature sensor, and an error correction device. The pressure sensor produces a voltage output proportional to a sensed pressure. The temperature sensor measures a first temperature at a first location and a second temperature at a second location to produce a temperature difference signal. The error correction device modifies the pressure output proportionally to the temperature difference signal to produce a temperature adjusted pressure output which compensates for error introduced from the temperature difference.

公开(公告)号：US20180180502A1

公开(公告)日：2018-06-28

申请号：US15846598

申请日：2017-12-19

Applicant: Hyundai Kefico Corporation

Inventor： Chi Yeon Kim

IPC: G01L9/04 ,  G01K7/16

CPC classification number: G01L9/045 ,  G01K7/16 ,  G01L9/0042 ,  G01L9/0054 ,  G01L19/0092

Abstract: A sensor element that has high measurement precision by providing a resistance-change length ratio corresponding to a direction-specific extension length is provided. The sensor element includes an element body disposed in a sensor body to measure a temperature and a pressure and having a diaphragm deformed based on the temperature or the pressure. Additionally, the sensor element includes pressure-measuring resistors including a second resistor portion and a fourth resistor portion disposed along a diametric direction with respect to a center of an upper surface of the diaphragm and in an extension section on the upper surface of the diaphragm and a first resistor portion and including a third resistor portion disposed outside the second resistor portion or the fourth resistor portion in a compression section on the upper surface of the diaphragm to eliminate a resistance change caused by a pressure-specific temperature change.

公开(公告)号：US10001424B2

公开(公告)日：2018-06-19

申请号：US15112714

申请日：2015-03-03

Applicant: DENSO CORPORATION

Inventor： Naoki Hasegawa ,  Kazuyuki Oono

IPC: G01L9/00 ,  G01L19/00 ,  G01L19/04 ,  G01L27/00 ,  G01L9/04

CPC classification number: G01L9/045

Abstract: A physical quantity detector includes: a bridge circuit portion that includes a bridge circuit including a first, second, third, and fourth strain gauges each having a resistance value that changes in response to an application of a physical quantity and to temperature, the bridge circuit portion outputting, as a first detection signal, a first voltage, and outputting, as a second detection signal, a second voltage; a temperature characteristic adjustment portion that is connected in parallel to the bridge circuit portion, and outputs, as a third detection signal, a third voltage corresponding to the input voltage; a first signal processing circuit portion that receives the first and second detection signals, and outputs a first differential voltage; and a second signal processing circuit portion that receives the second and third detection signals, and outputs a second differential voltage.

公开(公告)号：US09429479B2

公开(公告)日：2016-08-30

申请号：US13551811

申请日：2012-07-18

Applicant: Huntly D. Millar ,  Richard T. Thornton ,  Robert L. Pauly

Inventor： Huntly D. Millar ,  Richard T. Thornton ,  Robert L. Pauly

IPC: G01K3/08 ,  G01K7/20 ,  G01K13/00 ,  G01L1/22 ,  G01L9/04 ,  G01L9/06

CPC classification number: G01R17/10 ,  A61B5/1073 ,  A61B5/11 ,  A61B5/14539 ,  A61B5/14542 ,  A61B2562/0247 ,  A61B2562/0271 ,  A61B2562/029 ,  G01K7/20 ,  G01K13/002 ,  G01L1/2262 ,  G01L1/2281 ,  G01L9/045 ,  G01L9/065

Abstract: A method for determining a value of a parameter of an object or an environment includes positioning a device having a balanced circuit in or on an object or within a particular environment, wherein the balanced circuit comprises elements which are operationally sensitive to changes in a parameter of the object or the environment. The method further includes measuring a common mode signal of the balanced circuit and determining, from the common mode signal, a value of the parameter. An exemplary implementation of the method includes determining temperature using a resistive sensor having a Wheatstone bridge circuit with two variable resistors and two fixed resistors. Embodiments of systems and devices configured to employ such methods are provided, particularly medical probes, electronic signal monitoring devices, and systems employing such devices.

Abstract translation: 一种用于确定对象或环境的参数的值的方法包括将具有平衡电路的设备定位在对象内或在特定环境内，其中平衡电路包括对操作上对参数变化的操作敏感的元件 对象或环境。 该方法还包括测量平衡电路的共模信号，并从共模信号确定该参数的值。 该方法的示例性实现包括使用具有带有两个可变电阻器和两个固定电阻器的惠斯通电桥电路的电阻式传感器来确定温度。 提供了被配置为采用这种方法的系统和设备的实施例，特别是医疗探针，电子信号监控设备和采用这种设备的系统。

公开(公告)号：US20130305831A1

公开(公告)日：2013-11-21

申请号：US13983752

申请日：2012-02-10

Applicant: Ulrich Zimmermann ,  Wilhelm Ehrenberger ,  Simon Rüger ,  Gertraud Zimmermann

Inventor： Ulrich Zimmermann ,  Wilhelm Ehrenberger ,  Simon Rüger ,  Gertraud Zimmermann

IPC: A01G7/00 ,  B23P19/00

CPC classification number: A01G7/00 ,  B23P19/00 ,  G01L9/045 ,  G01L11/008 ,  G01L19/147 ,  G01N33/0098 ,  Y10T29/49826

Abstract: The invention relates to a clamp element for a temperature-independent turgor pressure measurement device for measuring the turgor pressure in a plant sample.

Abstract translation: 本发明涉及一种用于测量植物样品中的膨胀压力的用于温度的独立膨胀压力测量装置的夹紧元件。

公开(公告)号：US20090126498A1

公开(公告)日：2009-05-21

申请号：US11918756

申请日：2006-03-31

Applicant: Markus Gilch ,  Manfred Glehr

Inventor： Markus Gilch ,  Manfred Glehr

IPC: G01L19/04 ,  G01L7/08

CPC classification number: G01L9/0055 ,  G01L9/045 ,  G01L19/143

Abstract: The invention relates to a pressure sensor device comprising a membrane body in the form of a membrane whose first side is exposed to a working medium whereas the second side thereof is arranged oppositely to the first side. The inventive device also comprises at least one pressure sensor element (16, 18) for detecting the extension or compressive strain of the membrane body produced by the working medium pressure. A temperature sensor element (22) for detecting the membrane body temperature is mounted thereon.

Abstract translation: 本发明涉及一种压力传感器装置，其包括膜形式的膜体，其膜的第一侧暴露于工作介质，而其第二侧与第一侧相对布置。 本发明的装置还包括用于检测由工作介质压力产生的膜体的伸展或压缩应变的至少一个压力传感器元件（16,18）。 安装有用于检测膜体温的温度传感器元件（22）。

公开(公告)号：US07066031B2

公开(公告)日：2006-06-27

申请号：US11025793

申请日：2004-12-28

Applicant: Mark Zdeblick ,  Benedict James Costello

Inventor： Mark Zdeblick ,  Benedict James Costello

IPC: G01L7/08

CPC classification number: A61B5/0215 ,  A61B5/412 ,  A61B2562/02 ,  A61N1/3627 ,  A61N1/36564 ,  G01L9/0042 ,  G01L9/0055 ,  G01L9/045 ,  G01L9/065

Abstract: Implantable pressure sensors and methods for making and using the same. A feature of at least some of the subject pressure sensors is that they are low-drift sensors. Additional features of representative pressure sensors include the presence of at least one strain transducer that is fabricated from a stable gauge material. The subject pressure sensors find use in a variety of applications.

Abstract translation: 可植入压力传感器及其制造和使用方法。 至少一些目标压力传感器的特征在于它们是低漂移传感器。 代表性压力传感器的附加特征包括存在由稳定的规格材料制成的至少一个应变换能器。 主题压力传感器可用于各种应用。

公开(公告)号：US20050160827A1

公开(公告)日：2005-07-28

申请号：US11025879

申请日：2004-12-28

Applicant: Mark Zdeblick ,  Benedict Costello

Inventor： Mark Zdeblick ,  Benedict Costello

IPC: A61B20060101 ,  A61B5/0215 ,  A61N1/362 ,  A61N1/365 ,  G01L9/00 ,  G01L9/04 ,  G01L9/06 ,  H01L21/44 ,  H01L21/48

CPC classification number: A61B5/0215 ,  A61B5/412 ,  A61B2562/02 ,  A61N1/3627 ,  A61N1/36564 ,  G01L9/0042 ,  G01L9/0055 ,  G01L9/045 ,  G01L9/065

Abstract: Implantable pressure sensors and methods for making and using the same are provided. A feature of embodiments of the subject pressure sensors is that they are low-drift sensors. The subject sensors find use in a variety of applications.

Abstract translation: 提供了可植入压力传感器及其制造和使用方法。 目标压力传感器的实施例的特征在于它们是低漂移传感器。 主题传感器可用于各种应用。

公开(公告)号：US20030041670A1

公开(公告)日：2003-03-06

申请号：US10247023

申请日：2002-09-19

Inventor： Hisatoshi Hirota ,  Naoya Wanajo

IPC: G01L009/04

CPC classification number: G01L27/002 ,  G01L9/045 ,  G01L19/0061 ,  G01L19/02 ,  G01L19/148

Abstract: It is an object to provide a method of adjusting a pressure sensor, in which adjustment of a diaphragm portion and adjustment of an amplification circuit connected to the diaphragm portion are simplified. A flexible circuit board having the amplification circuit mounted thereon is connected to a diaphragm member having the diaphragm portion formed with gauge resistances, and offset, span and temperature-compensating adjustment resistances, and adjustment of the adjustment resistances formed on the diaphragm member is performed in this state. The adjustment on the side of the diaphragm member including the amplification circuit accommodates adjustment deviation on the amplification circuit, and hence adjustment of the whole pressure sensor can be achieved by a single adjustment process. The adjustment process thus simplified can reduce manufacturing costs.

Abstract translation: 本发明的目的是提供一种调节压力传感器的方法，其中调节膜片部分和调节连接到隔膜部分的放大电路。 具有安装有放大电路的柔性电路板连接到隔膜部件，隔膜部件具有形成有阻力的隔膜部分，以及偏移，跨度和温度补偿调节电阻，并且在隔膜部件上形成的调节电阻的调节在 这个状态。 包括放大电路的隔膜部件一侧的调节容纳放大电路的调整偏差，因此可以通过单个调整处理来实现整个压力传感器的调节。 如此简化的调整过程可以降低制造成本。