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1.
公开(公告)号:US20190183449A1
公开(公告)日:2019-06-20
申请号:US16282646
申请日:2019-02-22
发明人: Scott David Kravis , Leonid Khatutskiy , James Paul Frerichs , Adrian David French , Kyle Alan Pixton
IPC分类号: A61B6/00 , H01H36/00 , G03B42/04 , H01H35/14 , A61B6/14 , H01L27/14 , H01L31/00 , G06F3/01 , G06F1/3234 , G06F1/3206 , G06F1/3203 , G06F1/32 , G01R31/02 , G01R33/02 , G01L7/00 , A61B5/01
CPC分类号: A61B6/547 , A61B5/01 , A61B6/145 , A61B6/4233 , A61B6/4405 , A61B6/4429 , A61B6/465 , A61B6/467 , A61B6/586 , A61B6/587 , A61B2560/0204 , G01L7/00 , G01R31/02 , G01R31/2825 , G01R33/02 , G01T1/16 , G03B42/042 , G06F1/32 , G06F1/3203 , G06F1/3206 , G06F1/3234 , G06F1/3287 , G06F3/017 , H01H35/14 , H01H36/00 , H01L27/14 , H01L31/00
摘要: Methods and systems are described for operating an intra-oral imaging sensor that includes a housing, an image sensing component at least partially housed within the housing, and a temperature sensor. An output of the temperature indicative of a sensed temperature is received and evaluated to determine whether the intra-oral imaging sensor is positioned in the mouth of the patient. The determination of whether the temperature sensor may be based on one or more determined conditions including whether a current temperature exceeds a threshold, whether a first derivative of the sensed temperature exceeds a rate-of-change threshold, and whether a second derivative of the sensed temperature exceeds a temperature acceleration threshold. In some implementations, the operation of the intra-oral imaging sensor is automatically adjusted in response to a determination that the sensor has been placed inside the mouth of a patient.
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公开(公告)号:US20190107565A1
公开(公告)日:2019-04-11
申请号:US15726809
申请日:2017-10-06
CPC分类号: G01R19/0038 , G01R15/04 , G01R19/16557 , G01R19/1659 , G01R31/008 , G01R31/02 , H02H3/32
摘要: A discrete input determining circuit is disclosed, which includes an input biasing network connected to a discrete input for providing a first input voltage, a voltage divider network for dividing the first input voltage into a second input voltage and a third input voltage, a first comparator, wherein a non-inverting input terminal of the first comparator receives the second input voltage, and a second comparator, wherein an inverting input terminal of the second comparator receives the third input voltage, wherein an inverting input terminal of the first comparator and a non-inverting input terminal of the second comparator receive a reference voltage, and an output terminal of the first comparator and an output terminal of the second comparator are configured to provide a logic output. A discrete input determining method is also disclosed.
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3.
公开(公告)号:US20180364289A1
公开(公告)日:2018-12-20
申请号:US16049213
申请日:2018-07-30
摘要: Discussed herein are a sensor-network system and a method thereof for detecting and isolating faults occurring in sub-systems and sensors included in the network. The sub-systems and the sensor measurements are subject to noise and disturbances. A bank of Kalman-filters (KF) is used to detect and isolate the faults. Each KF is driven by either a pair of consecutive sensor measurements or a pair including a reference input and a sensor measurement. The KF residual is computed for each measurement pair and is a reliable indicator of a fault in subsystems and sensors located in the network.
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公开(公告)号:US10082531B2
公开(公告)日:2018-09-25
申请号:US15347499
申请日:2016-11-09
申请人: ROLLS-ROYCE plc
IPC分类号: G01R31/02 , H02P9/14 , G01R31/34 , H02P29/024
CPC分类号: G01R31/02 , G01R31/34 , H02P9/14 , H02P25/03 , H02P29/0241
摘要: A rectifier diode failure detection apparatus for an electrical machine (10), the electrical machine (10) comprising an exciter armature winding (28a-c), a rotor main field winding (24) and first and second rectifiers (34a, 34b) arranged in parallel, each rectifier (34a, 34b) comprising at least first and second diodes (38a, 38b), each rectifier being configured to independently supply the rotor main field winding (24) with DC electrical current, the failure detection apparatus comprising:a controller (40) comprising at least two current sensors (42a, 42b), each current sensor (42a, 42b) being configured to measure output current (If1, If2) of a respective one of the rectifiers (34a, 34b), and the controller (40) being configured to determine a harmonic of the measured rectifier output currents; the controller (40) being further configured to determine a ratio of the magnitude of the first rectifier (34a) output current harmonic to the magnitude of the second rectifier (34b) output current harmonic, wherein the controller (40) is configured to determine that a fault has occurred in one of the rectifier diodes (38a, 38b) where the ratio exceeds a threshold value.
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公开(公告)号:US20180260293A1
公开(公告)日:2018-09-13
申请号:US15666056
申请日:2017-08-01
发明人: CHUN-SHENG CHEN
摘要: A warning circuit is configured to output a warning in response to an integrated graphics card unit being coupled to a display screen and a discrete graphics card being coupled to a first connector. The first connector is configured to output a coupling signal in response to the discrete graphics card being coupled to the first connector. The integrated graphics card unit is configured to output a control signal in response to the integrated graphics card unit being coupled to the display screen. The warning circuit includes a controller that controls the discrete graphics card to convert display data to drive the display screen in response to receiving the coupling signal. The warning circuit is configured to output the warning in response to receiving the control signal and the coupling signal.
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公开(公告)号:US10027106B2
公开(公告)日:2018-07-17
申请号:US15723318
申请日:2017-10-03
发明人: Alexander Fomenko , Gerhard Wolk
CPC分类号: H02H3/0935 , G01R31/02 , H02H1/0007 , H02H1/043 , H02H3/06 , H02H3/243 , H02H3/247 , H02H11/008
摘要: The invention relates to a power supply unit for the provision of at least one switchable power output, having at least one power input UIN, at least one voltage measuring device that monitors the voltage at the at least one power input UIN, wherein, if the input voltage falls below a defined threshold Uthres or if the change in the input voltage UIN per unit of time rises above a defined threshold ΔUthres/Δt, the power output/power outputs is/are switched off and the input voltage is then measured at a first timepoint t1, and, after a first predetermined time (td1) (S240), the input voltage U is measured again at a second timepoint t2, and if the input voltage at the second timepoint is greater than the input voltage at the first timepoint, it is assumed that a short circuit is present at at least one power output.
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公开(公告)号:US20180196097A1
公开(公告)日:2018-07-12
申请号:US15911912
申请日:2018-03-05
申请人: RF GROUP LLC
发明人: Michael B. Rothbart
CPC分类号: G01R31/02 , F04B49/04 , F04B51/00 , F04D15/0245 , G01R31/343
摘要: A sump, ejector, or other pump monitor configured to monitor the amperage of electric current power supplied through the pump monitor to a pump and communicate one or more signals regarding the amperage or variations in amperage to a remote signal receiving device which indicate a predicted failure or actual failure of the pump. In various embodiments, the pump monitor operates with a remote pump failure warning system. The remote signal receiving device or remote pump failure warning system provides suitable warnings to one or more user access devices.
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公开(公告)号:US20180156856A1
公开(公告)日:2018-06-07
申请号:US15888446
申请日:2018-02-05
摘要: Discussed herein are a sensor-network system and a method thereof for detecting and isolating faults occurring in sub-systems and sensors included in the network. The sub-systems and the sensor measurements are subject to noise and disturbances. A bank of Kalman-filters (KF) is used to detect and isolate the faults. Each KF is driven by either a pair of consecutive sensor measurements or a pair including a reference input and a sensor measurement. The KF residual is computed for each measurement pair and is a reliable indicator of a fault in subsystems and sensors located in the network.
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公开(公告)号:US09983175B2
公开(公告)日:2018-05-29
申请号:US15492841
申请日:2017-04-20
发明人: James Ginther , John Timms , G. Wayne Moore , James Gessert
CPC分类号: G01N29/30 , G01N29/2437 , G01N2291/018 , G01R27/02 , G01R27/2605 , G01R31/02 , H04R29/00 , H04R29/005 , H04R2420/09
摘要: Methods and devices are disclosed for testing an acoustic probe having transducing elements for converting between acoustic and electrical signals. An electrical signal is generated at a frequency with a testing device capable of generating electrical signals over a range of frequencies. The electrical signal is transmitted to at least some of the transducing elements to measure a complex impedance and thereby evaluate a performance of the transducing elements.
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10.
公开(公告)号:US09964529B2
公开(公告)日:2018-05-08
申请号:US14409129
申请日:2013-06-12
申请人: Robert Bosch GmbH
IPC分类号: F01N11/00 , G01N33/00 , G01N15/06 , F02D41/14 , F02D41/22 , G01M15/10 , G01N27/04 , G01R31/02 , F02D41/20
CPC分类号: G01N33/0006 , F02D41/1466 , F02D41/1494 , F02D41/222 , F02D2041/2086 , G01M15/102 , G01N15/0606 , G01N15/0656 , G01N27/04 , G01R31/02 , Y02T10/40
摘要: A method for checking the function of a sensor for detecting soot is provided, the sensor including at least two measuring electrodes situated on a substrate made of an electrically insulating material, and a heating element, the method including: carrying out a first current-voltage measurement at a first temperature to ascertain a first measured variable, carrying out a second current-voltage measurement at a second temperature to ascertain a second measured variable, and forming a difference between the first measured variable and the second measured variable.
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