A new issue of this journal has just been published. To see abstracts of the papers it contains (with links through to the full papers) click here:
Selected papers from the latest issue:Enhanced Locomotive and Drilling Microrobot Using Precessional and Gradient Magnetic Field
04 September 2011, 23:16:34
Publication year: 2011
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Semi, Jeong , Hyunchul, Choi , Kyoungrae, Cha , Jie, Li , Jong-oh, Park , ...
We propose a new electromagnetic actuation (EMA) system for an intravascular microrobot with steering, locomotion and drilling functions. The EMA system consists of 3 pairs of Helmholtz coil and 1 pair of Maxwell coil. Generally, Helmholtz coils can align a microrobot in a desired direction by generating a uniform magnetic flux. If the uniform magnetic field generated by Helmholtz coils can be rotated, a microrobot with Helmholtz coils can also be rotated. On the other hand, a Maxwell coil, which generates a constant gradient magnetic flux, can supply the propulsion force for the microrobot. A microrobot actuated by the proposed...
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Semi, Jeong , Hyunchul, Choi , Kyoungrae, Cha , Jie, Li , Jong-oh, Park , ...
We propose a new electromagnetic actuation (EMA) system for an intravascular microrobot with steering, locomotion and drilling functions. The EMA system consists of 3 pairs of Helmholtz coil and 1 pair of Maxwell coil. Generally, Helmholtz coils can align a microrobot in a desired direction by generating a uniform magnetic flux. If the uniform magnetic field generated by Helmholtz coils can be rotated, a microrobot with Helmholtz coils can also be rotated. On the other hand, a Maxwell coil, which generates a constant gradient magnetic flux, can supply the propulsion force for the microrobot. A microrobot actuated by the proposed...
Influences of perforation ratio in characteristics of capacitive micromachined ultrasonic transducers in air
04 September 2011, 23:16:34
Publication year: 2011
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Bu-Sang, Cha , Seung-Mok, Lee , Takeshi, Kanashima , Masanori, Okuyama , Tsunehisa, Tanaka
Capacitive micromachined ultrasonic transducers (CMUTs) with a perforated membrane have been fabricated and characterized in air. Two types of CMUT device have been fabricated having perforation ratio (Area Ratio of holes=AR) of 10% and 20%, and analyzed about electrical and mechanical characteristics. The perforation ratio (AR) of membrane substantially influences on the electrostatic force and mechanical restoring force of the device since it leads to the area variation of electrode and membrane, it subsequently influences on the sensitivity and frequency response of the CMUT device. The electrostatic force and mechanical restoring force were improved by decreasing the AR and increasing...
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Bu-Sang, Cha , Seung-Mok, Lee , Takeshi, Kanashima , Masanori, Okuyama , Tsunehisa, Tanaka
Capacitive micromachined ultrasonic transducers (CMUTs) with a perforated membrane have been fabricated and characterized in air. Two types of CMUT device have been fabricated having perforation ratio (Area Ratio of holes=AR) of 10% and 20%, and analyzed about electrical and mechanical characteristics. The perforation ratio (AR) of membrane substantially influences on the electrostatic force and mechanical restoring force of the device since it leads to the area variation of electrode and membrane, it subsequently influences on the sensitivity and frequency response of the CMUT device. The electrostatic force and mechanical restoring force were improved by decreasing the AR and increasing...
Enhanced Locomotive and Drilling Microrobot Using Precessional and Gradient Magnetic Field
03 September 2011, 23:12:07
Publication year: 2011
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Semi, Jeong , Hyunchul, Choi , Kyoungrae, Cha , Jie, Li , Jong-oh, Park , ...
We propose a new electromagnetic actuation (EMA) system for an intravascular microrobot with steering, locomotion and drilling functions. The EMA system consists of 3 pairs of Helmholtz coil and 1 pair of Maxwell coil. Generally, Helmholtz coils can align a microrobot in a desired direction by generating a uniform magnetic flux. If the uniform magnetic field generated by Helmholtz coils can be rotated, a microrobot with Helmholtz coils can also be rotated. On the other hand, a Maxwell coil, which generates a constant gradient magnetic flux, can supply the propulsion force for the microrobot. A microrobot actuated by the proposed...
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Semi, Jeong , Hyunchul, Choi , Kyoungrae, Cha , Jie, Li , Jong-oh, Park , ...
We propose a new electromagnetic actuation (EMA) system for an intravascular microrobot with steering, locomotion and drilling functions. The EMA system consists of 3 pairs of Helmholtz coil and 1 pair of Maxwell coil. Generally, Helmholtz coils can align a microrobot in a desired direction by generating a uniform magnetic flux. If the uniform magnetic field generated by Helmholtz coils can be rotated, a microrobot with Helmholtz coils can also be rotated. On the other hand, a Maxwell coil, which generates a constant gradient magnetic flux, can supply the propulsion force for the microrobot. A microrobot actuated by the proposed...
Influences of perforation ratio in characteristics of capacitive micromachined ultrasonic transducers in air
03 September 2011, 23:12:07
Publication year: 2011
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Bu-Sang, Cha , Seung-Mok, Lee , Takeshi, Kanashima , Masanori, Okuyama , Tsunehisa, Tanaka
Capacitive micromachined ultrasonic transducers (CMUTs) with a perforated membrane have been fabricated and characterized in air. Two types of CMUT device have been fabricated having perforation ratio (Area Ratio of holes=AR) of 10% and 20%, and analyzed about electrical and mechanical characteristics. The perforation ratio (AR) of membrane substantially influences on the electrostatic force and mechanical restoring force of the device since it leads to the area variation of electrode and membrane, it subsequently influences on the sensitivity and frequency response of the CMUT device. The electrostatic force and mechanical restoring force were improved by decreasing the AR and increasing...
Source: Sensors and Actuators A: Physical, In Press, Accepted Manuscript, Available online 3 September 2011
Bu-Sang, Cha , Seung-Mok, Lee , Takeshi, Kanashima , Masanori, Okuyama , Tsunehisa, Tanaka
Capacitive micromachined ultrasonic transducers (CMUTs) with a perforated membrane have been fabricated and characterized in air. Two types of CMUT device have been fabricated having perforation ratio (Area Ratio of holes=AR) of 10% and 20%, and analyzed about electrical and mechanical characteristics. The perforation ratio (AR) of membrane substantially influences on the electrostatic force and mechanical restoring force of the device since it leads to the area variation of electrode and membrane, it subsequently influences on the sensitivity and frequency response of the CMUT device. The electrostatic force and mechanical restoring force were improved by decreasing the AR and increasing...
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