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31.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：US11680933B2
公开(公告)日：2023-06-20
申请号：US16585684
申请日：2019-09-27
申请人： MSA TECHNOLOGY, LLC
IPC分类号： G01N33/00
CPC分类号： G01N33/0031 , G01N33/0006 , G01N33/0073 , G01N33/0016
摘要： A method of operating a gas sensor for a gas analyte including a sensing component includes, in a first mode, interrogating the sensor by periodically applying an electrical signal to the sensing component of the sensor, measuring sensor response to the electrical signal which is indicative of a sensitivity of the sensor each time the electrical signal is applied to the sensing component, determining whether one or more thresholds have been exceeded based upon the sensor response determined each time the electrical signal is applied to the sensing component, and entering a second mode, different from the first mode in analysis of the sensor response to the periodically applied electrical signals, if one or more thresholds are exceeded.
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公开(公告)号：US20230113553A1
公开(公告)日：2023-04-13
申请号：US17496420
申请日：2021-10-07
申请人： MSA TECHNOLOGY, LLC
发明人： Chris Borneo , Steve Denninger , Victor Lejeune
摘要： A management system includes a processor system in operative connection with a communication system. The communication system is configured to be in communicative connection with a gas monitoring system of an entity. The gas monitoring system further includes one or more portable gas detection instruments which include one or more gas sensors and a rechargeable battery system. The gas monitoring system further includes one or more chargers configured to charge the rechargeable battery system of each of the portable gas detection instruments. The management system further includes a memory system in operative connection with the processor system. The memory system includes an algorithm executable by the processor system stored therein and a database associated with the algorithm stored therein, which includes data identifying each of the chargers as an asset of the entity and each of the portable gas detection instruments as an asset of the entity.
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公开(公告)号：US20220404388A1
公开(公告)日：2022-12-22
申请号：US17876699
申请日：2022-07-29
申请人： MSA Technology, LLC
发明人： Benjamin T. Sepe , Jeffrey F. Harding , Mitcham C. Tuell , Robert Craig Campbell , Christopher M. Stygar , Peter I. Rutkowski , Michael Goodspeed
摘要： A fall protection compliance system includes a connection structure configured for interfacing an anchor structure and a connection sensor associated with the connection structure. The connection sensor includes an accelerometer or a pressure switch, where the connection sensor is configured to monitor continued connection of the connection structure to the anchor structure over a period of time and to output a signal indicating said continued connection.
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公开(公告)号：US20220373568A1
公开(公告)日：2022-11-24
申请号：US17873671
申请日：2022-07-26
申请人： MSA TECHNOLOGY, LLC
IPC分类号： G01N35/00 , G01N33/00 , G01N33/497
摘要： A method of operating a sensor system including at least one sensor to detect a first gas analyte and a control system includes electronically interrogating the sensor to determine the operational status thereof and, based upon the results of the electronic interrogation, the control system initiating an automated maintenance procedure for the sensor.
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公开(公告)号：US11482859B2
公开(公告)日：2022-10-25
申请号：US17122437
申请日：2020-12-15
申请人： MSA TECHNOLOGY, LLC
IPC分类号： H02J1/06 , H02J50/80 , G01R19/00 , G01R27/02 , G06F1/3203
摘要： A system includes a two-conductor loop in which the loop current or current signal is controlled by a loop current controller to be proportional to a signal output from a sensor. The system further includes energy harvesting circuity in electrical connection with the two-conductor loop which includes a second current controller in parallel electrical connection with the loop current controller and a power converter in electrical connection with the second current controller. The second current controls a portion of current drawn from the two-conductor loop and delivered to the power converter from an output port thereof. The portion of the current drawn from the two-conductor loop is returned to the loop current controller from the energy harvesting circuit. Noise in the portion of the current drawn from the two-conductor loop by the second current controller is controlled by the second current controller to be below a predetermined threshold.
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37.发明申请公开(公告)号：US20220260704A1
公开(公告)日：2022-08-18
申请号：US17729665
申请日：2022-04-26
申请人： MSA Technology, LLC
IPC分类号： G01S13/89 , H01Q21/20 , H04B10/112 , H01Q3/26
摘要： Provided are computer-implemented systems and methods for a device that includes at least one processor programmed or configured to receive one or more messages from a device in an transmit state, the one or more messages comprising a first message received at a first power level, the first message comprising data associated with a power level at which the first message was transmitted by the transmitting device, and a second messages received at a second power level, the second message comprising data associated with a power level at which the second message was transmitted by the transmitting device. The processor is further configured to determine a heading toward the transmitting device based on the first message and the second message; and output data associated with an indication of the heading toward the transmitting device.
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公开(公告)号：US20210393997A1
公开(公告)日：2021-12-23
申请号：US17347625
申请日：2021-06-15
申请人： MSA Technology, LLC
摘要： A respirator mask includes a face piece configured for contacting at least a portion of a face of a user, a head harness for attaching the respirator mask to a head of the user, at least one opening on the face piece, and at least one filter associated with the opening on the face piece. The at least one filter is configured to facilitate a passage of ambient air to an interior of the face piece in a first direction. The at least one filter is further configured to facilitate a passage of air exhaled by the user wearing the respirator mask in a second direction opposite the first direction from the interior of the face piece to the ambient air and reduce a passage of aerosolized particulate matter exhaled by the user in the second direction.
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公开(公告)号：US11143588B1
公开(公告)日：2021-10-12
申请号：US16835826
申请日：2020-03-31
申请人： MSA Technology, LLC
IPC分类号： G01N21/35 , G01N21/3504 , H01J61/16 , G01N21/31
摘要： An open path gas detector for detecting the presence of a target gas in the presence of fog or water vapor. A transmitter transmits flashes of optical energy along a path in an area under surveillance, including energy at a sample wavelength region at which the target gas is absorbed, at a reference wavelength region not significantly absorbed by the target gas, and at a synchronization wavelength region different from the first and second wavelengths. A receiver includes a sample channel responsive to the optical energy at the sample wavelength region, a reference channel responsive to optical energy at the reference wavelength region, and a third synchronization channel responsive to the optical energy at the synchronization wavelength region. The receiver detects the target gas and synchronizes operation of the receiver to the transmitter flashes of optical energy using the output of the synchronization channel.
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