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Browsing by Author Bui, Tung Thanh

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  • Conference Paper

  • Angular Rate Sensing by Circulatory Vortex Flow: Design, Simulation and Experiment

    • Authors: Phan, Hoa Thanh; Dinh, Thien Xuan; Tran, Canh-Dung; Chu, Duc Trinh; Bui, Tung Thanh; Pham, and Phuc Hong; Dau, Van Thanh (2019)

  • A fully packaged convective vortex gyrometer actuated by a PZT diaphragm is reported. The flow circulates at higher velocity after each actuating circle to form a vortex in the desired chamber. The vortex is characterized by hotwire anemometry. The device is initially designed based on a numerical analysis whose results are used to set up the experiment. The angular rate sensing of the device is successfully tested using a turntable. The technique is a potential solution to various applications related to inertial sensing and fluidic amplifier.
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  • Conference Paper

  • Liquid Pumping and Mixing by Pzt Synthetic Jet

    • Authors: Le, Van Luan; Nguyen, Nhu Cuong; Nguyen, Tai Tuan; Dinh, Thien Xuan; Tran, Canh-Dung; Dang, Bao Lam; Bui, Tung Thanh; Dau, Van Thanh; Chu, Duc Trinh (2019)

  • In this paper, a PZT synthetic jet that can function as both an efficient pumping and mixing device is developed. Compare with the conventional design where the practice of controlling the internal flow is undertaken by microvalves structure, this approach promotes the durability and allows the device to work with different liquids at high Reynold number without losing of backflow from the diffuser, therefore provides efficient mixing. The pumping performance is applicable for commercialized counterparts while the homogeneous medium was obtained at downstream in the experiments, which was further confirmed by simulation. Notably, the chaotic mixing feature of the device is also applic...
  • item.jpg
  • Conference Paper

  • Study on Point-to-Ring Corona Based Gyroscope

    • Authors: Tran, Van Ngoc; Bui, Tung Thanh; Tran, Canh-Dung; Dinh, Thien Xuan; Chu, Duc Trinh; Dau, Van Thanh; Phan, Thanh Hoa; Pham, Van Dong (2019)

  • We present for the first time a novel gyroscope using circulatory electro-hydrodynamics flow in a confined space. Three point-ring corona actuator is to generate ionic flows in three separated channels and the ionic flows then merge together at a nozzle of the main chamber to create a jet flow. The residual charge of ion winds is removed by a master-ring electrode. By the effect of angular rate, the jet flow handled by a hotwire anemometry is deflected and sensed. Results by both experiment and numerical simulation consistently show good repeatability and stability of the new configuration-based device. Since ion wind is generated by a minimum power, the device does not require any vi...
  • item.jpg
  • Conference Paper

  • Wearable Fluidic Strain Sensor for Human Motion Sensing

    • Authors: Tran, Nhu Chi; Nguyen, Ngoc An; Dau, Van Thanh; Le, Van Chieu; Chu, Duc Trinh; Bui, Tung Thanh (2020)

  • A strain sensor with high flexibility using ionic liquid is proposed for sensing movements of human body. The resistance strain sensor is constructed from a silicon tube filled fully with a mixture of aqueous sodium chloride and glycerin sealed gold-coated electrodes. When an external force is applied to the sensor, the silicon tube deforms resulting in a change in the sensor resistance value. The proposed sensor was fabricated and experimentally characterized under several working conditions. Good performance was demonstrated in detecting the movement of human leg and fingers. The proposed simple sensor has high potential in wearable applications.

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Browsing by Author Bui, Tung Thanh

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 4 of 4
  • item.jpg
  • Conference Paper

  • Angular Rate Sensing by Circulatory Vortex Flow: Design, Simulation and Experiment

    • Authors: Phan, Hoa Thanh; Dinh, Thien Xuan; Tran, Canh-Dung; Chu, Duc Trinh; Bui, Tung Thanh; Pham, and Phuc Hong; Dau, Van Thanh (2019)

  • A fully packaged convective vortex gyrometer actuated by a PZT diaphragm is reported. The flow circulates at higher velocity after each actuating circle to form a vortex in the desired chamber. The vortex is characterized by hotwire anemometry. The device is initially designed based on a numerical analysis whose results are used to set up the experiment. The angular rate sensing of the device is successfully tested using a turntable. The technique is a potential solution to various applications related to inertial sensing and fluidic amplifier.
  • item.jpg
  • Conference Paper

  • Liquid Pumping and Mixing by Pzt Synthetic Jet

    • Authors: Le, Van Luan; Nguyen, Nhu Cuong; Nguyen, Tai Tuan; Dinh, Thien Xuan; Tran, Canh-Dung; Dang, Bao Lam; Bui, Tung Thanh; Dau, Van Thanh; Chu, Duc Trinh (2019)

  • In this paper, a PZT synthetic jet that can function as both an efficient pumping and mixing device is developed. Compare with the conventional design where the practice of controlling the internal flow is undertaken by microvalves structure, this approach promotes the durability and allows the device to work with different liquids at high Reynold number without losing of backflow from the diffuser, therefore provides efficient mixing. The pumping performance is applicable for commercialized counterparts while the homogeneous medium was obtained at downstream in the experiments, which was further confirmed by simulation. Notably, the chaotic mixing feature of the device is also applic...
  • item.jpg
  • Conference Paper

  • Study on Point-to-Ring Corona Based Gyroscope

    • Authors: Tran, Van Ngoc; Bui, Tung Thanh; Tran, Canh-Dung; Dinh, Thien Xuan; Chu, Duc Trinh; Dau, Van Thanh; Phan, Thanh Hoa; Pham, Van Dong (2019)

  • We present for the first time a novel gyroscope using circulatory electro-hydrodynamics flow in a confined space. Three point-ring corona actuator is to generate ionic flows in three separated channels and the ionic flows then merge together at a nozzle of the main chamber to create a jet flow. The residual charge of ion winds is removed by a master-ring electrode. By the effect of angular rate, the jet flow handled by a hotwire anemometry is deflected and sensed. Results by both experiment and numerical simulation consistently show good repeatability and stability of the new configuration-based device. Since ion wind is generated by a minimum power, the device does not require any vi...
  • item.jpg
  • Conference Paper

  • Wearable Fluidic Strain Sensor for Human Motion Sensing

    • Authors: Tran, Nhu Chi; Nguyen, Ngoc An; Dau, Van Thanh; Le, Van Chieu; Chu, Duc Trinh; Bui, Tung Thanh (2020)

  • A strain sensor with high flexibility using ionic liquid is proposed for sensing movements of human body. The resistance strain sensor is constructed from a silicon tube filled fully with a mixture of aqueous sodium chloride and glycerin sealed gold-coated electrodes. When an external force is applied to the sensor, the silicon tube deforms resulting in a change in the sensor resistance value. The proposed sensor was fabricated and experimentally characterized under several working conditions. Good performance was demonstrated in detecting the movement of human leg and fingers. The proposed simple sensor has high potential in wearable applications.