The Experts below are selected from a list of 13872 Experts worldwide ranked by ideXlab platform

Jinliang Liu - One of the best experts on this subject based on the ideXlab platform.

  • Physical suppression effects of the reversed Magnetic coupling on the saturation inductance of saturable pulse transformer
    Applied Physics Letters, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    As a combination device of pulse transformer and Magnetic Switch, saturable pulse transformer (SPT) is widely employed in high power laser pumping and pulsed power technology. A reversed Magnetic coupling mechanism of the diverging Magnetic fields among multiple windings is put forward to explain the physical suppression effect on the saturation inductance of the SPT windings. The theoretical and experimental results reveal that the saturation inductance of the SPT can decrease to a level less than its structural inductance through regulating the reversed currents in the multiple windings, which helps to achieve a Magnetic Switch with ultra-low saturation inductance.

  • a new kind of solid state marx generator based on transformer type Magnetic Switches
    Laser and Particle Beams, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    In this paper, a new kind of solid-state Marx generator based on synchronous transformer type Magnetic Switches (TTMS) is put forward, and the TTMSs with new winding structures are used to substitute all the spark gaps in the traditional Marx generator for the purposes of solidification and long life time. As the new type of TTMS with high step-up ratio and low saturated inductances is employed, the proposed Marx generator becomes a compact combination of pulse transformer, Magnetic Switch, and Marx capacitors. The stages of the Marx capacitors can be synchronously charged in parallel before the Magnetic core saturates, and these Marx capacitors also can synchronously discharge in series. The establishing time of the proposed Marx generator is at ns range. As the new type of self-reset TTMS is used, the input voltage of the Marx generator decreases to a low level less than 1 kV while the output voltage can easily reach a high level ranging from dozens of kV to hundreds of kV.

  • a new kind of low inductance transformer type Magnetic Switch ttms with coaxial cylindrical conductors
    Review of Scientific Instruments, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    As important devices for voltage boosting and Switching, respectively, pulse transformer and Magnetic Switch are widely used in pulsed power technology. In this paper, a new kind of transformer type Magnetic Switch (TTMS) with coaxial cylindrical conductors is put forward to combine the functions of voltage boosting and Switching in one power device. As a compact combination device of discrete pulse transformer and Magnetic Switch, the compact TTMS decreases the required volume of Magnetic cores in a large scale. The primary windings of the TTMS have a parallel combination structure so that the TTMS which only has 3 turns of secondary windings has a step-up ratio at 1:9. Before the Magnetic core saturates, the TTMS has low unsaturated inductances of windings and good pulse response characteristics, so it can be used to substitute the Marx generator to charge the pulse forming line (PFL) at the ranges of several hundred kV and several hundred ns. After the core saturates, the cylindrical conductors can decrease the saturated inductance of the secondary windings of TTMS to a level less than 400 nH. As a result, the proposed TTMS can be used as the boosting transformer and main Switch of helical Blumlein PFL to form the quasi-square voltage pulse on the 160 Ω load with a short pulse rise time only at 60 ns.

Purnamasari, Ade Irma - One of the best experts on this subject based on the ideXlab platform.

  • Pengembangan Smart Home Dengan Microcontrollers ESP32 Dan MC-38 Door Magnetic Switch Sensor Berbasis Internet of Things (IoT) Untuk Meningkatkan Deteksi Dini Keamanan Perumahan
    'Ikatan Ahli Informatika Indonesia (IAII)', 2019
    Co-Authors: Setiawan Andi, Purnamasari, Ade Irma
    Abstract:

    The objective developed from this research is to utilize Smart Home with an integrated ESP32 microcontroller with a camera and MC-38 door Magnetic Switch sensor based on the Internet of Things (IoT) as a research base to detect the security of arumsari earth housing in Cirebon District when left by its inhabitants. ESP32 microcontroller which can be programmed via arduino IDE, then functioned to respond to the integrated camera so that it can transmit images when the MC-38 sensor door Magnetic Switch sensor is active. Technically the combination of the ESP32 microcontroller and MC-38 door Magnetic Switch sensor, which was developed as a prototype in this study is called the arumsari housing early detection system. The mechanism of the arumsari housing early detection system is when a house door or window is successfully forcibly broken without going through the system mechanism, then automatically an image or can also be developed into a video from a camera mounted on an ESP32 microcontroller will send the image through a web framework or smartphone as a form early warning of security to housing owners. The results obtained from this study are at the angle of normally open MC-38 door Magnetic Switch sensor of 60 - 1800, will work sending an image signal which means there is an indication of a burglar or unknown person entering the house. Whereas at the normally closed angle MC-38 door Magnetic Switch sensor is 00-50, it will not work sending an image signal which means the house is safe.Keamanan perumahan saat ditinggal pergi beraktifitas oleh penghuninya menjadi prioritas utama yang harus dipenuhi oleh sebagian besar masyarakat penghuni perumahan bumi arumsari sumber kabupaten Cirebon. Berdasarkan data yang diperoleh dari penelitian, tujuan yang dikembangkan dari penelitian ini adalah memanfaatkan Smart Home dengan microcontroller ESP32 terintegrasi dengan kamera dan MC-38 door Magnetic Switch sensor berbasis Internet of Things (IoT) sebagai dasar penelitian untuk mendeteksi keamanan perumahan bumi Arumsari Sumber Kabupaten Cirebon pada saat ditinggal oleh penghuninya. Microcontroller ESP32 yang dapat diprogram melalui arduino IDE, kemudian difungsikan untuk merespon kamera yang terintegrasi agar dapat mengirimkan gambar pada saat sensor MC-38 door Magnetic Switch sensor aktif. Secara teknis perpaduan antara microcontroller ESP32 dan MC-38 door Magnetic Switch sensor, yang dikembangkan sebagai prototype dalam penelitian ini dinamakan sebagai sistem deteksi dini perumahan arumsari. Mekanisme dari sistem deteksi dini perumahan arumsari adalah ketika pintu rumah atau jendela berhasil dijebol secara paksa tanpa melalui mekanisme sistem, maka secara otomatis gambar atau bisa juga dikembangkan menjadi video dari kamera yang terpasang pada microcontroller ESP32 akan mengirimkan gambar tersebut melalui web framework atau smartphone sebagai bentuk peringatan dini keamanan kepada pemilik perumahan. Hasil yang diperoleh dari penelitian ini adalah pada sudut normally open MC-38 door Magnetic Switch sensor sebesar 60 - 1800, akan bekerja mengirimkan sinyal gambar yang artinya ada indikasi pencuri atau orang yang tidak dikenal masuk rumah. Sedangkan pada sudut normally closed MC-38 door Magnetic Switch sensor sebesar 00 - 50 , tidak akan bekerja mengirimkan sinyal gambar yang berarti rumah dalam keadaan aman

Ade Irma Purnamasari - One of the best experts on this subject based on the ideXlab platform.

  • pengembangan smart home dengan microcontrollers esp32 dan mc 38 door Magnetic Switch sensor berbasis internet of things iot untuk meningkatkan deteksi dini keamanan perumahan
    Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2019
    Co-Authors: Andi Setiawan, Ade Irma Purnamasari
    Abstract:

    The objective developed from this research is to utilize Smart Home with an integrated ESP32 microcontroller with a camera and MC-38 door Magnetic Switch sensor based on the Internet of Things (IoT) as a research base to detect the security of arumsari earth housing in Cirebon District when left by its inhabitants. ESP32 microcontroller which can be programmed via arduino IDE, then functioned to respond to the integrated camera so that it can transmit images when the MC-38 sensor door Magnetic Switch sensor is active. Technically the combination of the ESP32 microcontroller and MC-38 door Magnetic Switch sensor, which was developed as a prototype in this study is called the arumsari housing early detection system. The mechanism of the arumsari housing early detection system is when a house door or window is successfully forcibly broken without going through the system mechanism, then automatically an image or can also be developed into a video from a camera mounted on an ESP32 microcontroller will send the image through a web framework or smartphone as a form early warning of security to housing owners. The results obtained from this study are at the angle of normally open MC-38 door Magnetic Switch sensor of 60 - 1800, will work sending an image signal which means there is an indication of a burglar or unknown person entering the house. Whereas at the normally closed angle MC-38 door Magnetic Switch sensor is 00-50, it will not work sending an image signal which means the house is safe.

Yu Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Physical suppression effects of the reversed Magnetic coupling on the saturation inductance of saturable pulse transformer
    Applied Physics Letters, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    As a combination device of pulse transformer and Magnetic Switch, saturable pulse transformer (SPT) is widely employed in high power laser pumping and pulsed power technology. A reversed Magnetic coupling mechanism of the diverging Magnetic fields among multiple windings is put forward to explain the physical suppression effect on the saturation inductance of the SPT windings. The theoretical and experimental results reveal that the saturation inductance of the SPT can decrease to a level less than its structural inductance through regulating the reversed currents in the multiple windings, which helps to achieve a Magnetic Switch with ultra-low saturation inductance.

  • a new kind of solid state marx generator based on transformer type Magnetic Switches
    Laser and Particle Beams, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    In this paper, a new kind of solid-state Marx generator based on synchronous transformer type Magnetic Switches (TTMS) is put forward, and the TTMSs with new winding structures are used to substitute all the spark gaps in the traditional Marx generator for the purposes of solidification and long life time. As the new type of TTMS with high step-up ratio and low saturated inductances is employed, the proposed Marx generator becomes a compact combination of pulse transformer, Magnetic Switch, and Marx capacitors. The stages of the Marx capacitors can be synchronously charged in parallel before the Magnetic core saturates, and these Marx capacitors also can synchronously discharge in series. The establishing time of the proposed Marx generator is at ns range. As the new type of self-reset TTMS is used, the input voltage of the Marx generator decreases to a low level less than 1 kV while the output voltage can easily reach a high level ranging from dozens of kV to hundreds of kV.

  • a new kind of low inductance transformer type Magnetic Switch ttms with coaxial cylindrical conductors
    Review of Scientific Instruments, 2013
    Co-Authors: Yu Zhang, Jinliang Liu
    Abstract:

    As important devices for voltage boosting and Switching, respectively, pulse transformer and Magnetic Switch are widely used in pulsed power technology. In this paper, a new kind of transformer type Magnetic Switch (TTMS) with coaxial cylindrical conductors is put forward to combine the functions of voltage boosting and Switching in one power device. As a compact combination device of discrete pulse transformer and Magnetic Switch, the compact TTMS decreases the required volume of Magnetic cores in a large scale. The primary windings of the TTMS have a parallel combination structure so that the TTMS which only has 3 turns of secondary windings has a step-up ratio at 1:9. Before the Magnetic core saturates, the TTMS has low unsaturated inductances of windings and good pulse response characteristics, so it can be used to substitute the Marx generator to charge the pulse forming line (PFL) at the ranges of several hundred kV and several hundred ns. After the core saturates, the cylindrical conductors can decrease the saturated inductance of the secondary windings of TTMS to a level less than 400 nH. As a result, the proposed TTMS can be used as the boosting transformer and main Switch of helical Blumlein PFL to form the quasi-square voltage pulse on the 160 Ω load with a short pulse rise time only at 60 ns.

Setiawan Andi - One of the best experts on this subject based on the ideXlab platform.

  • Pengembangan Smart Home Dengan Microcontrollers ESP32 Dan MC-38 Door Magnetic Switch Sensor Berbasis Internet of Things (IoT) Untuk Meningkatkan Deteksi Dini Keamanan Perumahan
    'Ikatan Ahli Informatika Indonesia (IAII)', 2019
    Co-Authors: Setiawan Andi, Purnamasari, Ade Irma
    Abstract:

    The objective developed from this research is to utilize Smart Home with an integrated ESP32 microcontroller with a camera and MC-38 door Magnetic Switch sensor based on the Internet of Things (IoT) as a research base to detect the security of arumsari earth housing in Cirebon District when left by its inhabitants. ESP32 microcontroller which can be programmed via arduino IDE, then functioned to respond to the integrated camera so that it can transmit images when the MC-38 sensor door Magnetic Switch sensor is active. Technically the combination of the ESP32 microcontroller and MC-38 door Magnetic Switch sensor, which was developed as a prototype in this study is called the arumsari housing early detection system. The mechanism of the arumsari housing early detection system is when a house door or window is successfully forcibly broken without going through the system mechanism, then automatically an image or can also be developed into a video from a camera mounted on an ESP32 microcontroller will send the image through a web framework or smartphone as a form early warning of security to housing owners. The results obtained from this study are at the angle of normally open MC-38 door Magnetic Switch sensor of 60 - 1800, will work sending an image signal which means there is an indication of a burglar or unknown person entering the house. Whereas at the normally closed angle MC-38 door Magnetic Switch sensor is 00-50, it will not work sending an image signal which means the house is safe.Keamanan perumahan saat ditinggal pergi beraktifitas oleh penghuninya menjadi prioritas utama yang harus dipenuhi oleh sebagian besar masyarakat penghuni perumahan bumi arumsari sumber kabupaten Cirebon. Berdasarkan data yang diperoleh dari penelitian, tujuan yang dikembangkan dari penelitian ini adalah memanfaatkan Smart Home dengan microcontroller ESP32 terintegrasi dengan kamera dan MC-38 door Magnetic Switch sensor berbasis Internet of Things (IoT) sebagai dasar penelitian untuk mendeteksi keamanan perumahan bumi Arumsari Sumber Kabupaten Cirebon pada saat ditinggal oleh penghuninya. Microcontroller ESP32 yang dapat diprogram melalui arduino IDE, kemudian difungsikan untuk merespon kamera yang terintegrasi agar dapat mengirimkan gambar pada saat sensor MC-38 door Magnetic Switch sensor aktif. Secara teknis perpaduan antara microcontroller ESP32 dan MC-38 door Magnetic Switch sensor, yang dikembangkan sebagai prototype dalam penelitian ini dinamakan sebagai sistem deteksi dini perumahan arumsari. Mekanisme dari sistem deteksi dini perumahan arumsari adalah ketika pintu rumah atau jendela berhasil dijebol secara paksa tanpa melalui mekanisme sistem, maka secara otomatis gambar atau bisa juga dikembangkan menjadi video dari kamera yang terpasang pada microcontroller ESP32 akan mengirimkan gambar tersebut melalui web framework atau smartphone sebagai bentuk peringatan dini keamanan kepada pemilik perumahan. Hasil yang diperoleh dari penelitian ini adalah pada sudut normally open MC-38 door Magnetic Switch sensor sebesar 60 - 1800, akan bekerja mengirimkan sinyal gambar yang artinya ada indikasi pencuri atau orang yang tidak dikenal masuk rumah. Sedangkan pada sudut normally closed MC-38 door Magnetic Switch sensor sebesar 00 - 50 , tidak akan bekerja mengirimkan sinyal gambar yang berarti rumah dalam keadaan aman