A smart wirelessly-powered homecage for long-term high-throughput behavioral experimentsopen access
- Authors
- Lee, Byunghun; Kiani, Mehdi; Ghovanloo, Maysam
- Issue Date
- Sep-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Closed-loop inductive power transmission; automatic tracking; implantable medical devices; radio-frequency identification (RFID); homecage; EnerCage; Kinect
- Citation
- IEEE SENSORS JOURNAL, v.15, no.9, pp.4905 - 4916
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE SENSORS JOURNAL
- Volume
- 15
- Number
- 9
- Start Page
- 4905
- End Page
- 4916
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156371
- DOI
- 10.1109/JSEN.2015.2430859
- ISSN
- 1530-437X
- Abstract
- and a graphic user interface is presented for longitudinal electrophysiology and behavioral neuroscience experiments. The EnerCage-HC system can wirelessly power a mobile unit attached to a small animal subject and also track its behavior in real-time as it is housed inside a standard homecage. The EnerCage-HC system is equipped with one central and four overlapping slanted wire-wound coils with optimal geometries to form three-and four-coil power transmission links while operating at 13.56 MHz. Utilizing multicoil links increases the power transfer efficiency (PTE) compared with conventional two-coil links and also reduces the number of power amplifiers to only one, which significantly reduces the system complexity, cost, and heat dissipation. A Microsoft Kinect installed 90 cm above the homecage localizes the animal position and orientation with 1.6-cm accuracy. Moreover, a power management ASIC, including a high efficiency active rectifier and automatic coil resonance tuning, was fabricated in a 0.35-mu m 4M2P standard CMOS process for the mobile unit. The EnerCage-HC achieves a max/min PTE of 36.3%/16.1% at the nominal height of 7 cm. In vivo experiments were conducted on freely behaving rats by continuously delivering 24 mW to the mobile unit for > 7 h inside a standard homecage.
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