The Experts below are selected from a list of 1674 Experts worldwide ranked by ideXlab platform

Takashi Yamanaka - One of the best experts on this subject based on the ideXlab platform.

  • development of a self oscillating ultrasonic Micro Motor and its application to a watch
    Ultrasonics, 2000
    Co-Authors: Akihiro Iino, Kenji Suzuki, M. Suzuki, Masao Kasuga, Takashi Yamanaka
    Abstract:

    We have developed an ultrasonic Micro-Motor for use as a Micro-actuator in place of an electromagnetic Motor. This ultrasonic Micro-Motor, which can be driven by a single signal and in which the change of the direction of the rotor movement can be made easily by selecting the electrode to apply the driving signal, can easily construct a self-oscillating circuit and simplify the driving circuit. We have also simplified the Motor structure, which is easy to miniaturize and mass-produce. We applied a version of this Motor with a diameter of 8 mm to a vibration alarm, and one with a diameter of 4.5 mm to a driving source of a calendar mechanism in a watch. This ultrasonic Micro-Motor is expected to be of use as a new driving source in a broad range of fields.

Shu-xiang Dong - One of the best experts on this subject based on the ideXlab platform.

  • ultrasonic Micro Motor using miniature piezoelectric tube with diameter of 1 0 mm
    Ultrasonics, 2006
    Co-Authors: Hui Zhang, Tian-hua Wang, Shu-xiang Dong, Shu-yi Zhang, Zhongning Zhang
    Abstract:

    Abstract At the present moment, the smallest piezoelectric ultrasonic Micro-Motors utilizing miniature PZT piezoelectric ceramic tubes were developed. The Motor consists of a PZT-metal composite tube stator, two steel rotors and a thin shaft that keeps the two rotors pressing on both ends of the stator elastically. The dimensions of the PZT tube are 1.0 mm in outer diameter, 0.6 mm in inner diameter and 5.0 mm in length. The diameter and total length of the assembled Micro-Motor is 1.0 mm and 8 mm (including an adjusting spring), respectively. The tube-type Micro-Motor is driven by two pairs of alternative voltages with phase shift 90° between the adjacent electrodes and operated in the first circular-bending vibration mode of the stator with the resonance frequency about 58 kHz. The experimental results show that the tube-type Micro-Motors have perfect performances: (i) high rotation frequency over 3000 rpm and (ii) large starting torque over 7.8 μN m under the conditions of the input voltage of 110 Vp–p and the resonance frequency. The Micro-Motor is well suitable for operating in Micro-spaces, such as in intravascular, Micro-robots and Micro-craft applications.

  • Ultrasonic Micro-Motor using miniature piezoelectric tube with diameter of 1.0 mm.
    Ultrasonics, 2006
    Co-Authors: Hui Zhang, Tian-hua Wang, Shu-xiang Dong, Z Y Zhang, Shu-yi Zhang, Li Fan
    Abstract:

    At the present moment, the smallest piezoelectric ultrasonic Micro-Motors utilizing miniature PZT piezoelectric ceramic tubes were developed. The Motor consists of a PZT-metal composite tube stator, two steel rotors and a thin shaft that keeps the two rotors pressing on both ends of the stator elastically. The dimensions of the PZT tube are 1.0 mm in outer diameter, 0.6 mm in inner diameter and 5.0 mm in length. The diameter and total length of the assembled Micro-Motor is 1.0 mm and 8 mm (including an adjusting spring), respectively. The tube-type Micro-Motor is driven by two pairs of alternative voltages with phase shift 90 degrees between the adjacent electrodes and operated in the first circular-bending vibration mode of the stator with the resonance frequency about 58 kHz. The experimental results show that the tube-type Micro-Motors have perfect performances: (i) high rotation frequency over 3000 rpm and (ii) large starting torque over 7.8 MicroN m under the conditions of the input voltage of 110 V(p-p) and the resonance frequency. The Micro-Motor is well suitable for operating in Micro-spaces, such as in intravascular, Micro-robots and Micro-craft applications.

Akihiro Iino - One of the best experts on this subject based on the ideXlab platform.

  • Self-oscillating Ultrasonic Micro-Motor and It's Application
    2003
    Co-Authors: Akihiro Iino, Kenji Suzuki, M. Suzuki, Kouji Nitadori, Masao Kasuga
    Abstract:

    Abstract : We have developed an ultrasonic Micro-Motor, which is expected to be used in a broad range of fields. The ultrasonic Micro-Motor, which can be driven by a single signal and change the rotational direction of a rotor easily by only selecting the electrode to apply drive signal, can easily construct a self-oscillating circuit and simplify the drive circuit. We have also simplified the Motor structure which is easy to miniaturize and mass-produce. We applied the ultrasonic Micro-Motor to some functions in watches and clocks. Furthermore we have tried precise positioning control with the ultrasonic Micro-Motor, and consequently it's potential for the ultra-precision positioning has been revealed.

  • development of a self oscillating ultrasonic Micro Motor and its application to a watch
    Ultrasonics, 2000
    Co-Authors: Akihiro Iino, Kenji Suzuki, M. Suzuki, Masao Kasuga, Takashi Yamanaka
    Abstract:

    We have developed an ultrasonic Micro-Motor for use as a Micro-actuator in place of an electromagnetic Motor. This ultrasonic Micro-Motor, which can be driven by a single signal and in which the change of the direction of the rotor movement can be made easily by selecting the electrode to apply the driving signal, can easily construct a self-oscillating circuit and simplify the driving circuit. We have also simplified the Motor structure, which is easy to miniaturize and mass-produce. We applied a version of this Motor with a diameter of 8 mm to a vibration alarm, and one with a diameter of 4.5 mm to a driving source of a calendar mechanism in a watch. This ultrasonic Micro-Motor is expected to be of use as a new driving source in a broad range of fields.

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

  • ultrasonic Micro Motor using miniature piezoelectric tube with diameter of 1 0 mm
    Ultrasonics, 2006
    Co-Authors: Hui Zhang, Tian-hua Wang, Shu-xiang Dong, Shu-yi Zhang, Zhongning Zhang
    Abstract:

    Abstract At the present moment, the smallest piezoelectric ultrasonic Micro-Motors utilizing miniature PZT piezoelectric ceramic tubes were developed. The Motor consists of a PZT-metal composite tube stator, two steel rotors and a thin shaft that keeps the two rotors pressing on both ends of the stator elastically. The dimensions of the PZT tube are 1.0 mm in outer diameter, 0.6 mm in inner diameter and 5.0 mm in length. The diameter and total length of the assembled Micro-Motor is 1.0 mm and 8 mm (including an adjusting spring), respectively. The tube-type Micro-Motor is driven by two pairs of alternative voltages with phase shift 90° between the adjacent electrodes and operated in the first circular-bending vibration mode of the stator with the resonance frequency about 58 kHz. The experimental results show that the tube-type Micro-Motors have perfect performances: (i) high rotation frequency over 3000 rpm and (ii) large starting torque over 7.8 μN m under the conditions of the input voltage of 110 Vp–p and the resonance frequency. The Micro-Motor is well suitable for operating in Micro-spaces, such as in intravascular, Micro-robots and Micro-craft applications.

  • Ultrasonic Micro-Motor using miniature piezoelectric tube with diameter of 1.0 mm.
    Ultrasonics, 2006
    Co-Authors: Hui Zhang, Tian-hua Wang, Shu-xiang Dong, Z Y Zhang, Shu-yi Zhang, Li Fan
    Abstract:

    At the present moment, the smallest piezoelectric ultrasonic Micro-Motors utilizing miniature PZT piezoelectric ceramic tubes were developed. The Motor consists of a PZT-metal composite tube stator, two steel rotors and a thin shaft that keeps the two rotors pressing on both ends of the stator elastically. The dimensions of the PZT tube are 1.0 mm in outer diameter, 0.6 mm in inner diameter and 5.0 mm in length. The diameter and total length of the assembled Micro-Motor is 1.0 mm and 8 mm (including an adjusting spring), respectively. The tube-type Micro-Motor is driven by two pairs of alternative voltages with phase shift 90 degrees between the adjacent electrodes and operated in the first circular-bending vibration mode of the stator with the resonance frequency about 58 kHz. The experimental results show that the tube-type Micro-Motors have perfect performances: (i) high rotation frequency over 3000 rpm and (ii) large starting torque over 7.8 MicroN m under the conditions of the input voltage of 110 V(p-p) and the resonance frequency. The Micro-Motor is well suitable for operating in Micro-spaces, such as in intravascular, Micro-robots and Micro-craft applications.

Masao Kasuga - One of the best experts on this subject based on the ideXlab platform.

  • Self-oscillating Ultrasonic Micro-Motor and It's Application
    2003
    Co-Authors: Akihiro Iino, Kenji Suzuki, M. Suzuki, Kouji Nitadori, Masao Kasuga
    Abstract:

    Abstract : We have developed an ultrasonic Micro-Motor, which is expected to be used in a broad range of fields. The ultrasonic Micro-Motor, which can be driven by a single signal and change the rotational direction of a rotor easily by only selecting the electrode to apply drive signal, can easily construct a self-oscillating circuit and simplify the drive circuit. We have also simplified the Motor structure which is easy to miniaturize and mass-produce. We applied the ultrasonic Micro-Motor to some functions in watches and clocks. Furthermore we have tried precise positioning control with the ultrasonic Micro-Motor, and consequently it's potential for the ultra-precision positioning has been revealed.

  • development of a self oscillating ultrasonic Micro Motor and its application to a watch
    Ultrasonics, 2000
    Co-Authors: Akihiro Iino, Kenji Suzuki, M. Suzuki, Masao Kasuga, Takashi Yamanaka
    Abstract:

    We have developed an ultrasonic Micro-Motor for use as a Micro-actuator in place of an electromagnetic Motor. This ultrasonic Micro-Motor, which can be driven by a single signal and in which the change of the direction of the rotor movement can be made easily by selecting the electrode to apply the driving signal, can easily construct a self-oscillating circuit and simplify the driving circuit. We have also simplified the Motor structure, which is easy to miniaturize and mass-produce. We applied a version of this Motor with a diameter of 8 mm to a vibration alarm, and one with a diameter of 4.5 mm to a driving source of a calendar mechanism in a watch. This ultrasonic Micro-Motor is expected to be of use as a new driving source in a broad range of fields.