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公开(公告)号：EP2924405B1
公开(公告)日：2017-04-26
申请号：EP13856314.3
申请日：2013-10-25
CPC分类号： G01K7/25 , G01F1/68 , G01F1/6965 , G01F25/0007 , G01K13/02 , G01K15/005 , G01K2013/024 , G01K2205/02
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公开(公告)号：EP2916111A1
公开(公告)日：2015-09-09
申请号：EP13851331.2
申请日：2013-10-09
CPC分类号： G01F1/696 , G01F1/698 , G01F25/0007 , G01R31/025
摘要： In configurations in which a circuit element is connected in parallel with a resistor configuring a bridge circuit between two wires for taking out voltage from both ends of the resistor, it is difficult to detect a break in the two wires. A thermal flow meter includes a heating element 2 and a temperature controlling bridge circuit 3 that is formed of a plurality of resistors 4 to 8 and controls the temperature of the heating element 2. The thermal flow meter includes: a circuit element 15 connected in parallel with at least one resistor 7 configuring the temperature controlling bridge circuit 3 through two wires L2, L3 drawn from both ends of the resistor 7; a voltage detection circuit 17 that detects that the magnitude of voltage produced between the two wires L2, L3 has become smaller than a first predetermined value; and a fault signal output circuit 20 that, when it is detected at the voltage detection circuit 17 that the magnitude of the voltage has become smaller than the first predetermined value, outputs a signal indicating a fault.
摘要翻译： 在电路元件与构成两线之间的桥接电路的电阻并联连接以从电阻器的两端取出电压的结构中，难以检测到两根电线中断。 热流量计包括加热元件2和由多个电阻器4至8形成并控制加热元件2的温度的温度控制桥接电路3.热流量计包括：并联连接的电路元件15 至少一个电阻器7通过从电阻器7的两端拉出的两条线L2，L3构成温度控制桥接电路3; 电压检测电路17，其检测出两线L2，L3之间产生的电压的大小变得小于第一预定值; 以及故障信号输出电路20，当在电压检测电路17检测到电压的大小变得小于第一预定值时，输出指示故障的信号。
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公开(公告)号：EP3062443B1
公开(公告)日：2020-08-12
申请号：EP14856600.3
申请日：2014-10-03
IPC分类号： H03K17/16 , H01L21/822 , H01L27/04 , H02J1/00 , H03K17/56
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公开(公告)号：EP3032228A1
公开(公告)日：2016-06-15
申请号：EP14833831.2
申请日：2014-02-05
发明人： MATSUMOTO Masahiro , NAKANO Hiroshi , ASANO Satoshi , ONOSE Yasuo
摘要： In order to provide a thermal mass flowmeter which makes higher accuracy of gas flowrate measurement possible while reliability in the thermal mass flowmeter is ensured (while deterioration or breakage caused by droplet adhesion is prevented), the thermal mass flowmeter according to the present invention has a heating element for generating heat by conduction, a temperature detection bridge circuit for detecting a temperature of the heating element, and a sensor element driving circuit portion connected to the heating element and the temperature detection bridge circuit and executing conduction control to the heating element, in which the sensor element driving circuit portion has an output mechanism and an output impedance adjustment mechanism and the output impedance adjustment mechanism is disposed between the output mechanism and the heating element and its output impedance is higher than an electric resistance value of the heating element and less than 1 MΩ.
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公开(公告)号：EP2975385A1
公开(公告)日：2016-01-20
申请号：EP14764983.4
申请日：2014-01-14
发明人： NAKANO Hiroshi , MATSUMOTO Masahiro , ASANO Satoshi , ONOSE Yasuo
IPC分类号： G01N25/18
CPC分类号： G01N25/00 , G01N25/18 , G01N33/005
摘要： In order to prevent deterioration and a breakdown of a sensor element when the sensor element is activated in a state where liquid is attached thereto, and to remove the liquid in a short period of time with lower power consumption, there is provided a gas sensor including a first heating element and a second heating element that is formed around the periphery of the first heating element and has a wider forming area than the first heating element, and measuring a gas amount by heating the first heating element to a predetermined temperature, in which the second heating element is heated when the gas sensor is activated, and the first heating element is heated to the predetermined temperature after a heat value of the first heating element is restricted for a predetermined period of time.
摘要翻译： 为了防止传感器元件在附着有液体的状态下被激活时的传感器元件的劣化和故障，并且以较低的功耗在短时间内除去液体，提供了一种气体传感器，其包括： 第一加热元件和第二加热元件，所述第一加热元件和第二加热元件围绕所述第一加热元件的周边形成并且具有比所述第一加热元件更宽的成形区域，并且通过将所述第一加热元件加热到预定温度来测量气体量，其中， 当气体传感器被激活时，第二加热元件被加热，并且在第一加热元件的热值被限制预定时间段之后，第一加热元件被加热到预定温度。
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6.发明公开
公开(公告)号：EP2924405A1
公开(公告)日：2015-09-30
申请号：EP13856314.3
申请日：2013-10-25
CPC分类号： G01K7/25 , G01F1/68 , G01F1/6965 , G01F25/0007 , G01K13/02 , G01K15/005 , G01K2013/024 , G01K2205/02
摘要： An object of the present invention is to provide a compact and highly accurate intake air temperature sensor by integrating a fixed resistor, connected in series to a temperature sensing element, into an integrated circuit and dispensing with a reference resistor or a changeover switch for connecting the fixed resistor to this reference resistor. The intake air temperature sensor has a temperature sensing element 2 whose resistance value varies with the intake temperature; an integrated circuit 1 electrically connected to the temperature sensing element 2; a resistive element 3 connected in series to the temperature sensing element 2; a writable memory 7 that stores correction information corresponding to the resistance value of the resistive element 3; and a correction processing unit 6 that corrects errors based on the resistance value of the resistive element 3, which are included in output signals of the temperature sensing element 2, on the basis of the correction information stored in the writable memory 7.
摘要翻译： 本发明的目的是通过将串联连接到温度检测元件的固定电阻器集成到集成电路中并且分配参考电阻器或转换开关来提供紧凑且高精度的进气温度传感器，用于连接 固定电阻到该参考电阻。 进气温度传感器具有温度检测元件2，其电阻值随进气温度而变化; 电连接到温度检测元件2的集成电路1; 与温度检测元件2串联连接的电阻元件3; 存储对应于电阻元件3的电阻值的校正信息的可写存储器7; 以及校正处理单元6，其基于存储在可写存储器7中的校正信息，校正基于包含在温度检测元件2的输出信号中的电阻元件3的电阻值的误差。
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公开(公告)号：EP2600121A1
公开(公告)日：2013-06-05
申请号：EP11812545.9
申请日：2011-07-28
IPC分类号： G01F1/692
CPC分类号： G01F1/692 , G01F1/6842 , G01F1/699
摘要： An object of the present invention is to provide a thermal type flow rate sensor that offers high sensitivity and improved reliability. A sensor element 1 according to the present invention includes a semiconductor substrate 2, a cavity portion 4 formed on the semiconductor substrate 2, a heating resistor 5 formed on the cavity portion 4 via an electrically insulating film, a heating temperature sensor 7 for detecting heating temperature of the heating resistor 5, and a driving circuit 22 for controlling the heating temperature of the heating resistor 5 using the temperature detected by the heating temperature sensor 7. The heating temperature sensor 7 comprises temperature-sensitive resistors having resistance values varying according to temperature and disposed upstream and downstream of a direction of flow of a fluid to be measured relative to the heating resistor 5 and on upper and lower sides in a direction perpendicular to the direction of flow of the fluid to be measured relative to the heating resistor 5.
摘要翻译： 本发明的目的是提供一种提供高灵敏度和改善的可靠性的热式流量传感器。 根据本发明的传感器元件1包括半导体基板2，形成在半导体基板2上的空腔部分4，通过电绝缘膜形成在空腔部分4上的加热电阻器5，用于检测加热的加热温度传感器7 加热电阻器5的温度，以及驱动电路22，用于使用由加热温度传感器7检测的温度来控制加热电阻器5的加热温度。加热温度传感器7包括具有根据温度变化的电阻值的温度敏感电阻器 并且相对于加热电阻器5在被测量流体的流动方向的上游和下游，并且在垂直于待测量流体的流动方向的相对于加热电阻器5的方向的上侧和下侧。
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公开(公告)号：EP2351982B1
公开(公告)日：2019-06-05
申请号：EP09823505.4
申请日：2009-10-21
发明人： ASANO Satoshi , MATSUMOTO Masahiro , OKADA Yasushi
IPC分类号： G01C19/56 , G01C19/5614 , G01C19/5776
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公开(公告)号：EP3346240A1
公开(公告)日：2018-07-11
申请号：EP16841344.1
申请日：2016-07-27
发明人： SATO Ryo , MATSUMOTO Masahiro , ASANO Satoshi , KOTABE Akira , SUZUKI Kazunori
摘要： Provided is an airflow meter with good precision. In the airflow meter, which is provided with an arithmetic circuit that incorporates air temperature and a sensor module temperature as adjustment elements for the output characteristics of the airflow meter, corrects the output characteristics in accordance with the temperature difference between the air temperature and the sensor module temperature and reduces the correction amount when the absolute value of the difference between the air temperature and the sensor module temperature is small.
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公开(公告)号：EP3062443A1
公开(公告)日：2016-08-31
申请号：EP14856600.3
申请日：2014-10-03
IPC分类号： H03K17/16 , H01L21/822 , H01L27/04 , H02J1/00 , H03K17/56
CPC分类号： H02H3/18 , G01R15/146 , H01L27/0248 , H01L27/0629 , H01L27/0647 , H01L28/20 , H01L28/40 , H01L29/861 , H02H3/24 , H02H11/002
摘要： Provided is a sensor device that suppresses a malfunction caused by a negative surge or a voltage drop. A sensor device includes a sensor element having an electrical characteristic varying according to a physical amount, a signal processing circuit configured to process an output signal of the sensor element, a transistor element interposed between a power source terminal and the signal processing circuit, a resistive element configured to connect a drain and a gate of the transistor element, or a collector and a base of the transistor element, and an element having threshold voltage for connecting the gate or the base of the transistor element to a GND. The element regulates current flowing from the resistive element in a direction of the GND, in a case in which supply voltage to the signal processing circuit falls below the threshold voltage.
摘要翻译： 提供了一种抑制由负浪涌或电压降引起的故障的传感器装置。 传感器装置包括具有根据物理量而变化的电特性的传感器元件，被配置为处理传感器元件的输出信号的信号处理电路，被置于电源端子和信号处理电路之间的晶体管元件，电阻性 被配置为连接晶体管元件的漏极和栅极或者晶体管元件的集电极和基极的元件以及具有用于将晶体管元件的栅极或基极连接到GND的阈值电压的元件。 在信号处理电路的电源电压低于阈值电压的情况下，元件调节从电阻元件流向GND的方向的电流。
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