发明申请
- 专利标题: DETUNING A MRT RECEIVE ANTENNA
- 专利标题(中): 拆除地铁接收天线
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申请号: US15131201申请日: 2016-04-18
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公开(公告)号: US20160320465A1公开(公告)日: 2016-11-03
- 发明人: Klaus Huber , Robert Rehner , Markus Vester
- 申请人: Klaus Huber , Robert Rehner , Markus Vester
- 优先权: DE102015207990.2 20150430
- 主分类号: G01R33/36
- IPC分类号: G01R33/36
摘要:
An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.
公开/授权文献
- US10145912B2 Detuning a MRT receive antenna 公开/授权日:2018-12-04