Test method for a humidity sensor and sensor module for same
    1.
    发明申请
    Test method for a humidity sensor and sensor module for same 审中-公开
    湿度传感器和传感器模块的测试方法相同

    公开(公告)号:US20130174644A1

    公开(公告)日:2013-07-11

    申请号:US13805202

    申请日:2011-05-19

    IPC分类号: G01N25/56

    CPC分类号: G01N25/56 G01N33/007

    摘要: A method for operating a sensor module having a humidity sensor for ascertaining the relative humidity, at least one first measured value for the relative humidity being ascertained with the aid of the humidity sensor. It is provided that an ambient temperature in the area of the humidity sensor is changed with the aid of a temperature control device; at least one second measured value for the relative humidity is ascertained with the aid of the humidity sensor after the change in ambient temperature in the area of the humidity sensor; and an operating state and/or a proper operation of the humidity sensor is inferred as a function of the first and second measured values.

    摘要翻译: 一种用于操作具有用于确定相对湿度的湿度传感器的传感器模块的方法,借助于湿度传感器确定相对湿度的至少一个第一测量值。 提供了在温度控制装置的帮助下改变湿度传感器的区域中的环境温度; 在湿度传感器的区域中的环境温度变化之后,借助湿度传感器确定相对湿度的至少一个第二测量值; 并且作为第一和第二测量值的函数推断湿度传感器的操作状态和/或适当的操作。

    Heated hot-film air-mass sensor
    2.
    发明授权
    Heated hot-film air-mass sensor 有权
    加热热膜空气传感器

    公开(公告)号:US07966877B2

    公开(公告)日:2011-06-28

    申请号:US11887718

    申请日:2006-02-23

    IPC分类号: G01F1/692

    摘要: To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors. Furthermore, the hot-film air-mass sensor has a chip carrier for mounting the sensor chip, as well as at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element, which is inserted into the chip carrier. Compared to the usual devices, the hot-film air-mass sensor has a lower susceptibility to contamination, especially by oil films.

    摘要翻译: 为了确定空气质量流量,特别是用于控制内燃机,提供了一种热膜空气质量传感器,其可以特别用于感测内燃机进气道中的空气质量流量。 热膜空气质量传感器具有传感器芯片,传感器芯片具有至少一个加热元件和至少两个温度传感器的传感器框架和传感器隔膜。 此外,热膜空气质量传感器具有用于安装传感器芯片的芯片载体,以及至少一个附加的加热元件。 传感器芯片能够使用插入到芯片载体中的至少一个附加加热元件来加热。 与常规装置相比,热膜空气质量传感器对污染的敏感性较低,特别是油膜。

    Heated Hot-Film Air-Mass Sensor
    3.
    发明申请
    Heated Hot-Film Air-Mass Sensor 有权
    加热热电影空气质量传感器

    公开(公告)号:US20090211355A1

    公开(公告)日:2009-08-27

    申请号:US11887718

    申请日:2006-02-23

    IPC分类号: G01F1/692 H05K3/30

    摘要: To determine air mass flows, especially for controlling internal combustion engines, a hot-film air-mass sensor is provided, which may be used especially for sensing air mass flows in the intake tract of an internal combustion engine. The hot-film air-mass sensor has a sensor chip having a sensor frame and a sensor diaphragm having at least one heating element and at least two temperature sensors. Furthermore, the hot-film air-mass sensor has a chip carrier for mounting the sensor chip, as well as at least one additional heating element. The sensor chip is able to be heated up using the at least one additional heating element, which is inserted into the chip carrier. Compared to the usual devices, the hot-film air-mass sensor has a lower susceptibility to contamination, especially by oil films.

    摘要翻译: 为了确定空气质量流量,特别是用于控制内燃机,提供了一种热膜空气质量传感器,其可以特别用于感测内燃机进气道中的空气质量流量。 热膜空气质量传感器具有传感器芯片,传感器芯片具有至少一个加热元件和至少两个温度传感器的传感器框架和传感器隔膜。 此外,热膜空气质量传感器具有用于安装传感器芯片的芯片载体,以及至少一个附加的加热元件。 传感器芯片能够使用插入到芯片载体中的至少一个附加加热元件来加热。 与常规装置相比,热膜空气质量传感器对污染的敏感性较低,特别是油膜。

    Method for correcting an oscillator frequency
    4.
    发明授权
    Method for correcting an oscillator frequency 有权
    校正振荡器频率的方法

    公开(公告)号:US07191081B2

    公开(公告)日:2007-03-13

    申请号:US10487117

    申请日:2002-08-16

    IPC分类号: G01R23/00

    CPC分类号: G01D18/00 G01D3/028

    摘要: A method for correcting an oscillator frequency of in particular a digital transmitter/receiver interface for transmitting measurement signals of a sensor to a control unit. The method includes outputting of a first reference frequency signal by the sensor, the first reference frequency signal and comparing it with a second reference frequency signal by the control unit, calculating a correction factor on the basis of the first and second reference frequency signals, and correcting the frequency signals representing actual measured quantities subsequently sent by the sensor and received by the control unit based on the calculated correction factor to obtain corrected frequency signals.

    摘要翻译: 一种校正特别是数字发射机/接收机接口的振荡器频率的方法,用于将传感器的测量信号传送到控制单元。 该方法包括由传感器输出第一参考频率信号,第一参考频率信号,并通过控制单元将其与第二参考频率信号进行比较,基于第一和第二参考频率信号计算校正因子,以及 校正表示由传感器随后发送并由控制单元根据所计算的校正因子接收的实际测量量的频率信号,以获得经校正的频率信号。

    Device and method for reducing the contamination of a sensor
    5.
    发明授权
    Device and method for reducing the contamination of a sensor 失效
    用于减少传感器污染的装置和方法

    公开(公告)号:US07487034B2

    公开(公告)日:2009-02-03

    申请号:US10583876

    申请日:2005-02-01

    IPC分类号: G06F19/00 G06F11/22 G01M15/00

    摘要: With devices and methods for reducing the contamination of a sensor, a sensor or sensor element—preferably a hot film air-mass meter—is deactivated when a software function integrated in the electronic control unit detects a possible contamination or a media carry-in. The sensor is deactivated using a high-side switch in the voltage supply or a low-side switch in the ground connection, wherein the media carry-in detection and the switch control are carried out by the control unit or an evaluation unit in the sensor. After the sensor is deactivated, a substitute signal is optionally generated that replaces the missing output signal of the sensor.

    摘要翻译: 利用用于减少传感器污染的装置和方法,当集成在电子控制单元中的软件功能检测到可能的污染或媒体携带时,传感器或传感器元件(优选热电影空气质量计)被停用。 使用电源中的高侧开关或接地连接中的低侧开关来禁用传感器,其中介质输入检测和开关控制由传感器中的控制单元或评估单元执行 。 在传感器被禁用之后,可选地产生替代传感器缺失的输出信号的替代信号。

    Device and Method for Reducing The Contamination Of A Sensor
    6.
    发明申请
    Device and Method for Reducing The Contamination Of A Sensor 失效
    降低传感器污染的装置和方法

    公开(公告)号:US20080133118A1

    公开(公告)日:2008-06-05

    申请号:US10583876

    申请日:2005-02-01

    IPC分类号: F02D41/18 G01F1/696 G01F23/26

    摘要: The invention relates to devices and methods for reducing the contamination of a sensor with which a sensor or sensor element—preferably a hot film air-mass meter—is deactivated when a software function integrated in the electronic control unit detects a possible contamination or a media carry-in. The sensor is deactivated using a high-side switch in the voltage supply or a low-side switch in the ground connection, wherein the media carry-in detection and the switch control are carried out by the control unit or an evaluation unit in the sensor. After the sensor is deactivated, a substitute signal is optionally generated that replaces the missing output signal of the sensor.

    摘要翻译: 本发明涉及当集成在电子控制单元中的软件功能检测到可能的污染物或介质时,减少传感器的污染的设备和方法,传感器或传感器元件(优选热电影空气质量计)被去激活 随身携带 使用电源中的高侧开关或接地连接中的低侧开关来禁用传感器,其中介质输入检测和开关控制由传感器中的控制单元或评估单元执行 。 在传感器被禁用之后,可选地产生替代传感器缺失的输出信号的替代信号。

    Measuring system with ratiometric frequency output
    7.
    发明授权
    Measuring system with ratiometric frequency output 失效
    带比例频率输出的测量系统

    公开(公告)号:US07012418B2

    公开(公告)日:2006-03-14

    申请号:US10486641

    申请日:2002-08-13

    IPC分类号: G01N27/00

    CPC分类号: G01D3/0365

    摘要: A measuring device, with a digital interface for the transmission of digital signals to an evaluation unit, is disclosed, whereby the interface includes a clock input, to which a system clock signal is fed, a signal input, to which a measured signal is applied, an arithmetic unit, which derives an output signal from the clock signal and measured signal, and a signal output where the output signal is output and transmitted to the evaluation unit. Measurement accuracy may be improved by transmitting a reference signal that is a signal derived from the clock signal, and using this reference signal to correct the output signal.

    摘要翻译: 公开了具有用于将数字信号传输到评估单元的数字接口的测量装置,由此该接口包括被馈送系统时钟信号的时钟输入,施加测量信号的信号输入 ,从时钟信号和测量信号导出输出信号的运算单元,输出信号被输出并传送到评估单元的信号输出。 通过发送作为从时钟信号导出的信号的参考信号,并使用该参考信号来校正输出信号,可以提高测量精度。