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公开(公告)号：US11519723B1
公开(公告)日：2022-12-06
申请号：US17714382
申请日：2022-04-06
Inventor： Khaled Gasmi
IPC: G01C3/08 , G01S7/4861 , G01S17/10 , G01S7/484 , H01S3/16 , G01C3/04 , G02B23/00 , G02B7/10 , G01S7/51
Abstract: A digital counting and display system and methods for use with a laser rangefinder that counts backscattered laser beams and displays a distance between a laser and a target. The laser rangefinder includes a laser configured to emit a pulsed laser beam, an afocal Gallilean telescope configured to receive backscattered laser pulses and generate a series of focused backscattered laser pulses, a silicon avalanche photodetector connected to the afocal Gallilean telescope, configured to generate a series of currents signal proportional to the series of focused backscattered laser pulses, a low noise, multistage amplifier connected to the silicon avalanche photodetector, configured to generate a series of linearly changing amplified voltage signals from the series of current signals, an analog-to-digital converter configured to convert the series of linearly changing amplified voltage signals to a series of digital voltage signals, and a digital counting and display circuit connected to the analog-digital converter.
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公开(公告)号：US11668688B2
公开(公告)日：2023-06-06
申请号：US17396318
申请日：2021-08-06
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
CPC classification number: G01N33/0037 , G01N21/314 , G01N21/39 , G01N21/61 , G01N2021/3155
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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公开(公告)号：US11573218B2
公开(公告)日：2023-02-07
申请号：US17396270
申请日：2021-08-06
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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公开(公告)号：US12031843B2
公开(公告)日：2024-07-09
申请号：US18056510
申请日：2022-11-17
Inventor： Khaled Gasmi
IPC: G01C3/08 , G01C3/04 , G01S7/484 , G01S7/4861 , G01S7/51 , G01S17/10 , G02B7/10 , G02B23/00 , H01S3/16
CPC classification number: G01C3/08 , G01C3/04 , G01S7/484 , G01S7/4861 , G01S7/51 , G01S17/10 , G02B7/10 , G02B23/00 , H01S3/1643 , H01S3/1691
Abstract: A digital counting and display system and methods for use with a laser rangefinder that counts backscattered laser beams and displays a distance between a laser and a target. The laser rangefinder includes a laser configured to emit a pulsed laser beam, an afocal Gallilean telescope configured to receive backscattered laser pulses and generate a series of focused backscattered laser pulses, a silicon avalanche photodetector connected to the afocal Gallilean telescope, configured to generate a series of currents signal proportional to the series of focused backscattered laser pulses, a low noise, multistage amplifier connected to the silicon avalanche photodetector, configured to generate a series of linearly changing amplified voltage signals from the series of current signals, an analog-to-digital converter configured to convert the series of linearly changing amplified voltage signals to a series of digital voltage signals, and a digital counting and display circuit connected to the analog-digital converter.
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公开(公告)号：US11740217B2
公开(公告)日：2023-08-29
申请号：US17396364
申请日：2021-08-06
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
CPC classification number: G01N33/0037 , G01N21/314 , G01N21/39 , G01N21/61 , G01N2021/3155
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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Patent Agency Ranking
公开(公告)号：US11609218B2
公开(公告)日：2023-03-21
申请号：US17396172
申请日：2021-08-06
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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公开(公告)号：US11169131B2
公开(公告)日：2021-11-09
申请号：US16789715
申请日：2020-02-13
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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公开(公告)号：US11435232B1
公开(公告)日：2022-09-06
申请号：US17744042
申请日：2022-05-13
Inventor： Khaled Gasmi
Abstract: A laser energy meter circuit, method, and system for measuring excitation and ionization of a reactant. The laser energy meter circuit includes a pyroelectric detector head configured to receive laser pulses and output current signals; an amplifier having a first amplifier input and an amplifier output configured to generate amplified voltage signals; a sample-and-hold circuit; a trigger circuit connected to a second sample-and-hold input, wherein the trigger circuit is configured to receive a TTL signal and generate a delayed output pulse, Q1 and a trigger signal, Q2; a sample-and-hold circuit output configured to output the maximum pulse voltage when the trigger signal is received at the second sample-and-hold input; a switched capacitor bank connected to the sample-and-hold circuit output; and a peak detector circuit configured to measure a magnitude of the maximum pulse voltage and generate an averaged DC maximum pulse voltage signal.
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公开(公告)号：US11162927B2
公开(公告)日：2021-11-02
申请号：US16789692
申请日：2020-02-13
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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公开(公告)号：US20190331651A1
公开(公告)日：2019-10-31
申请号：US15962564
申请日：2018-04-25
Inventor： Abdulaziz Aljalal , Sameh Altanany , Khaled Gasmi , Watheq Al-Basheer
Abstract: A method of measuring a concentration of NO2 in a gaseous mixture using a multimode laser beam that covers a tunable spectral range with a width of no more than 5 nm, wherein the multimode laser beam provides a high resolution transmittance spectrum at an absorption cross section of NO2 molecules, and a system for measuring the concentration of NO2 in the gaseous mixture. Various combinations of embodiments of the system and the method are provided.
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