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公开(公告)号：US11892422B2
公开(公告)日：2024-02-06
申请号：US17265495
申请日：2019-08-09
CPC分类号： G01N27/16 , G01N15/0606 , G01N15/0656 , G01N2015/0046
摘要： A particulate-matter detecting sensor including an insulating substrate which has a detecting face, detecting conductors formed in the insulating substrate, and a heating section formed on the insulating substrate. Each detecting conductor includes a detecting electrode part, a terminal part, and a connecting part. A portion of the detecting conductor is constituted of a noble metal conductor mainly formed of at least one noble metal selected from Pt, Au, Pd, Rh and Ir. At least a portion of the connecting part is formed of a low expansion conductor mainly formed of a low expansion coefficient metal having linear expansion coefficient lower than that of the noble metal. Both conductors are joined at an overlapping part at which the noble metal conductor and the low expansion conductor are partly overlapped with each other on an insulating layer forming the insulating substrate in a normal line direction of the insulating layer.
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2.发明公开公开(公告)号：US20230349853A1
公开(公告)日：2023-11-02
申请号：US18205207
申请日：2023-06-02
申请人： MSA TECHNOLOGY, LLC
IPC分类号： G01N27/18
摘要： A gas sensor device includes a sensing element including a heating element and electronic circuitry in connection with the heating element. The sensing element forms resistive element in a circuit of the electronic circuitry. The electronic circuity operates the sensing element in a trigger mode via a pulsed energy input to the heating element at a first duty cycle and in a primary mode via a pulsed energy input to the heating element at a second duty cycle, which is greater than the first duty cycle. The electronic circuitry is further configured to measure a response of the sensing element over time during each pulse of a plurality of pulses of the pulsed energy input. The primary mode is entered upon measurement of a value of a response at or above a threshold value in the trigger mode of operation.
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3.发明授权公开(公告)号：US11703473B2
公开(公告)日：2023-07-18
申请号：US16711413
申请日：2019-12-11
申请人： MSA TECHNOLOGY, LLC
摘要： A method of operating a sensing element including a heating element in operative connection with electronic circuitry, wherein the sensing element forms a resistive element in a circuit of the electronic circuitry, includes, in at least a first phase, activating the electronic circuitry to heat the sensing element to a temperature at which the sensing element is responsive to an analyte gas via energy input to the heating element in a pulsed manner. A constant resistance setpoint is set for the sensing element and energy through the circuit is variably controlled via the pulsed energy input toward achieving the constant resistance setpoint. The method further includes measuring a response of the sensing element over time to the pulsed energy input.
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公开(公告)号：US20190170675A1
公开(公告)日：2019-06-06
申请号：US15831309
申请日：2017-12-04
发明人： Chang Liu
CPC分类号： G01N27/16 , G01L1/225 , G01L5/16 , G01L19/148
摘要： This invention discloses a force sensor array, characterized in that it comprises: a circuit board, a plurality of gas pressure sensors arranged on the circuit board, and an energy-absorbing film layer covering the gas nozzle of each gas pressure sensor; the said energy-absorbing film layer has a certain elastic deformability, and can convert impact kinetic energy into heat energy. Through the provision of the energy-absorbing film layer, circuit board and other structures, when pressure is applied slowly, the energy-absorbing film layer of this invention shows the characteristics of solid to transfer pressure; different gas pressure sensors sense different pressure values during stress. The circuit board collects the pressure values fed back by the gas pressure sensors to show the spatial distribution of stress. When impact bursting force is applied to the energy-absorbing film layer, the energy-absorbing film layer converts kinetic energy into heat energy for dissipation, which can buffer impact and absorb more than 95% of the impact energy to improve the bursting resistance of the entire array. In addition, it is cost-effective.
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公开(公告)号：US20170219508A1
公开(公告)日：2017-08-03
申请号：US15488963
申请日：2017-04-17
发明人： Carlos Lana , Baohua Qi
CPC分类号： G01N27/16 , B01D53/94 , F01N3/0814 , F01N3/20 , F01N11/002 , F01N2550/24 , F01N2900/1404 , F02B77/086 , G01M15/102 , G01N25/00 , Y02T10/47
摘要： A system to detect the presence of a catalyst includes an exhaust gas tube, a first temperature sensing device, a second temperature sensing device, a flow rate measurement device, and a processing device. The first temperature sensing device measures a first temperature of exhaust gas upstream of the exhaust gas tube. The second temperature sensing device measures a second temperature of the exhaust gas downstream of the exhaust gas tube. The processing device estimates an expected time delay between the measured inlet and outlet exhaust gas temperatures corresponding to a system with a catalyst present. The processing device may also determine the presence of a catalyst by comparing the measured second temperature to the measured first temperature and comparing the measured second temperature to an estimated delayed first temperature associated with the expected time delay.
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公开(公告)号：US09658177B2
公开(公告)日：2017-05-23
申请号：US15019661
申请日：2016-02-09
发明人： Carlos Lana , Baohua Qi
CPC分类号： G01N27/16 , B01D53/94 , F01N3/0814 , F01N3/20 , F01N11/002 , F01N2550/24 , F01N2900/1404 , F02B77/086 , G01M15/102 , G01N25/00 , Y02T10/47
摘要： A system to detect the presence of a catalyst includes an exhaust gas tube, a first temperature sensing device, a second temperature sensing device, a flow rate measurement device, and a processing device. The first temperature sensing device measures a first temperature of exhaust gas upstream of the exhaust gas tube. The second temperature sensing device measures a second temperature of the exhaust gas downstream of the exhaust gas tube. The processing device estimates an expected time delay between the measured inlet and outlet exhaust gas temperatures corresponding to a system with a catalyst present. The processing device may also determine the presence of a catalyst by comparing the measured second temperature to the measured first temperature and comparing the measured second temperature to an estimated delayed first temperature associated with the expected time delay.
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公开(公告)号：US20160169138A1
公开(公告)日：2016-06-16
申请号：US14568916
申请日：2014-12-12
发明人： Michael McQuillen , Gopichandra Surnilla , Richard E. Soltis , Daniel A. Makled , Stephen B. Smith
CPC分类号： F02D41/1494 , F02D41/2474 , G01N27/16 , G01N27/4067 , G01N33/0039 , Y02A50/247
摘要： Various methods are provided for operating an oxygen sensor. In one example, a method of operating an oxygen sensor including a heater comprises sampling a first heater resistance at a first temperature, and determining a resistance-temperature transfer function relating heater resistance to heater temperature based on the first heater resistance and a second heater resistance at a second temperature, the second temperature different from the first temperature.
摘要翻译： 提供了用于操作氧传感器的各种方法。 在一个示例中，一种操作包括加热器的氧传感器的方法包括：在第一温度下对第一加热器电阻进行采样，并且基于第一加热器电阻和第二加热器电阻确定加热器电阻与加热器温度相关的电阻 - 温度传递函数 在第二温度下，第二温度不同于第一温度。
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公开(公告)号：US20160077031A1
公开(公告)日：2016-03-17
申请号：US14826697
申请日：2015-08-14
申请人： Sensirion AG
IPC分类号： G01N27/16
CPC分类号： G01N27/16 , G01N27/124 , G01N27/128 , G01N33/0008 , G01N33/0009 , H04M2250/12
摘要： An integrated chemical sensor chip comprises on or integrated in a common substrate a chemically sensitive layer and a heater heating the sensitive layer. In addition, a memory is provided for the storage of a measurement routine, the measurement routine comprising instructions defining a heating process over time and instructions defining one or more measurement points in time. An I/O interface is provided for receiving a trigger for the measurement routine and for supplying a result of the measurement routine. An engine controls the heater and measures a resistance of the sensitive layer according the instructions of the measurement routine.
摘要翻译： 集成的化学传感器芯片包括化学敏感层的共同衬底上或集成在共同衬底中，以及加热敏感层的加热器。 此外，提供了用于存储测量例程的存储器，该测量程序包括定义随时间的加热处理的指令以及定义一个或多个测量点的指令。 提供I / O接口用于接收测量程序的触发和提供测量程序的结果。 发动机控制加热器，并根据测量程序的指示测量敏感层的电阻。
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公开(公告)号：US09017612B2
公开(公告)日：2015-04-28
申请号：US13463188
申请日：2012-05-03
CPC分类号： G01N27/16 , G01N33/005 , H01M8/04089 , Y02E60/50
摘要： Provided is a gas sensor that needs no temperature sensor for detecting a temperature of a heater for preventing dew condensation. The gas sensor comprises a hydrogen sensor 1 including: an element housing 13 having a detection chamber 13a to which hydrogen is introduced; a detection element 31 arranged in the detection chamber 13a and detecting hydrogen; a heater 21 for heating the detection chamber 13a by heat generation via passing an electric current through the heater 21, a resistance value of the heater 21 being changed corresponding to a temperature of the detection chamber 13a; and a microcomputer 51 and a heater operation circuit 52 for controlling the heater 21. Herein, the microcomputer 51 controls a temperature of the detection chamber 13a by adjusting the electric current passing through the heater 21 based on the resistance value of the heater 21.
摘要翻译： 提供了一种气体传感器，其不需要用于检测用于防止结露的加热器的温度的温度传感器。 气体传感器包括氢传感器1，其包括：具有引入氢的检测室13a的元件壳体13; 布置在检测室13a中并检测氢的检测元件31; 用于通过使电流通过加热器21通过发热而加热检测室13a的加热器21，加热器21的电阻值根据检测室13a的温度而变化; 以及用于控制加热器21的微计算机51和加热器操作电路52.这里，微型计算机51通过基于加热器21的电阻值调节通过加热器21的电流来控制检测室13a的温度。
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公开(公告)号：US20140273262A1
公开(公告)日：2014-09-18
申请号：US14290412
申请日：2014-05-29
发明人： Kazuhiro OKAJIMA , Hidetoshi OISHI , Shunji TSUKABAYASHI , Akihiro SUZUKI , Nobuaki MURAKAMI , Satoshi MORIMOTO , Hiroshi KODA , Takashi MATSUMOTO
CPC分类号： G01N27/16 , G01N33/005 , Y10T436/22
摘要： Provided is a catalytic combustion typed gas sensor of detecting a combustible gas having a concentration equal to or more than a predetermined value based on a raised electric resistance. Herein, combustion heat generated when a combustible gas contacts to a catalytic metal (or detection element) heated by passing electric current therethrough raises a temperature and electric resistance of the catalytic metal. The electric current is made to pass through the catalytic metal such that the temperature of the catalytic metal becomes a standby temperature which is calculated by subtracting the raised temperature portion from a desorption temperature. The combustion heat is generated when the combustible gas contacts to the catalytic metal. Note the catalytic metal adsorbs a silicone compound via a silicon (Si) poisoning process and then desorbs the resulting adsorbed silicone compound at the desorption temperature. The desorption temperature is set in the range over 350° C. to 600° C.
摘要翻译： 提供一种催化燃烧型气体传感器，其基于升高的电阻检测浓度等于或大于预定值的可燃气体。 这里，当可燃气体与通过电流通过的电流加热的催化金属（或检测元件）接触时产生的燃烧热引起催化金属的温度和电阻。 使电流通过催化金属，使得催化金属的温度成为通过从解吸温度减去升温部分而计算的待机温度。 当可燃气体与催化金属接触时产生燃烧热。 注意，催化金属通过硅（Si）中毒方法吸附硅化合物，然后在解吸温度下解吸所得吸附的硅氧烷化合物。 解吸温度设定在350℃〜600℃的范围内
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