Development of a Micro-Gripper Using Piezoelectric Bimorphs
Piezoelectric bimorphs have been used as a micro-gripper in many applications, but the system might be complex and the response performance might not have been fully characterized. In this study the dynamic characteristics of bending piezoelectric bimorphs actuators were theoretically and experiment...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2013-05-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/13/5/5826 |
| _version_ | 1798039163960819712 |
|---|---|
| author | Nur Azah Hamzaid Noor Azuan Abu Osman Moumen T. El-Melegy Ahmed Abo-Ismail Amr M. El-Sayed |
| author_facet | Nur Azah Hamzaid Noor Azuan Abu Osman Moumen T. El-Melegy Ahmed Abo-Ismail Amr M. El-Sayed |
| author_sort | Nur Azah Hamzaid |
| collection | DOAJ |
| description | Piezoelectric bimorphs have been used as a micro-gripper in many applications, but the system might be complex and the response performance might not have been fully characterized. In this study the dynamic characteristics of bending piezoelectric bimorphs actuators were theoretically and experimentally investigated for micro-gripping applications in terms of deflection along the length, transient response, and frequency response with varying driving voltages and driving signals. In addition, the implementation of a parallel micro-gripper using bending piezoelectric bimorphs was presented. Both fingers were actuated separately to perform mini object handling. The bending piezoelectric bimorphs were fixed as cantilevers and individually driven using a high voltage amplifier and the bimorph deflection was measured using a non contact proximity sensor attached at the tip of one finger. The micro-gripper could perform precise micro-manipulation tasks and could handle objects down to 50 µm in size. This eliminates the need for external actuator extension of the microgripper as the grasping action was achieved directly with the piezoelectric bimorph, thus minimizing the weight and the complexity of the micro-gripper. |
| first_indexed | 2024-04-11T21:50:07Z |
| format | Article |
| id | doaj.art-187c75a8e8c3407697e4802ee0b702cb |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T21:50:07Z |
| publishDate | 2013-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-187c75a8e8c3407697e4802ee0b702cb2022-12-22T04:01:16ZengMDPI AGSensors1424-82202013-05-011355826584010.3390/s130505826Development of a Micro-Gripper Using Piezoelectric BimorphsNur Azah HamzaidNoor Azuan Abu OsmanMoumen T. El-MelegyAhmed Abo-IsmailAmr M. El-SayedPiezoelectric bimorphs have been used as a micro-gripper in many applications, but the system might be complex and the response performance might not have been fully characterized. In this study the dynamic characteristics of bending piezoelectric bimorphs actuators were theoretically and experimentally investigated for micro-gripping applications in terms of deflection along the length, transient response, and frequency response with varying driving voltages and driving signals. In addition, the implementation of a parallel micro-gripper using bending piezoelectric bimorphs was presented. Both fingers were actuated separately to perform mini object handling. The bending piezoelectric bimorphs were fixed as cantilevers and individually driven using a high voltage amplifier and the bimorph deflection was measured using a non contact proximity sensor attached at the tip of one finger. The micro-gripper could perform precise micro-manipulation tasks and could handle objects down to 50 µm in size. This eliminates the need for external actuator extension of the microgripper as the grasping action was achieved directly with the piezoelectric bimorph, thus minimizing the weight and the complexity of the micro-gripper.http://www.mdpi.com/1424-8220/13/5/5826piezoelectric actuatorbimorph |
| spellingShingle | Nur Azah Hamzaid Noor Azuan Abu Osman Moumen T. El-Melegy Ahmed Abo-Ismail Amr M. El-Sayed Development of a Micro-Gripper Using Piezoelectric Bimorphs Sensors piezoelectric actuator bimorph |
| title | Development of a Micro-Gripper Using Piezoelectric Bimorphs |
| title_full | Development of a Micro-Gripper Using Piezoelectric Bimorphs |
| title_fullStr | Development of a Micro-Gripper Using Piezoelectric Bimorphs |
| title_full_unstemmed | Development of a Micro-Gripper Using Piezoelectric Bimorphs |
| title_short | Development of a Micro-Gripper Using Piezoelectric Bimorphs |
| title_sort | development of a micro gripper using piezoelectric bimorphs |
| topic | piezoelectric actuator bimorph |
| url | http://www.mdpi.com/1424-8220/13/5/5826 |
| work_keys_str_mv | AT nurazahhamzaid developmentofamicrogripperusingpiezoelectricbimorphs AT noorazuanabuosman developmentofamicrogripperusingpiezoelectricbimorphs AT moumentelmelegy developmentofamicrogripperusingpiezoelectricbimorphs AT ahmedaboismail developmentofamicrogripperusingpiezoelectricbimorphs AT amrmelsayed developmentofamicrogripperusingpiezoelectricbimorphs |