发明公开
- 专利标题： CIRCUIT FOR CONDITIONING SMALL ELECTRICAL SIGNALS AND METHOD FOR CONTROLLING SAID CIRCUIT
- 专利标题（中）： 电路，其控制该线路调整小电信号和方法
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申请号： EP08761521.7申请日： 2008-04-22
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公开(公告)号： EP2269504A1公开(公告)日： 2011-01-05
- 发明人: RUFFINI, Giulio , DUNNE, Stephen , FARRES, Esteve
- 申请人： Starlab Barcelona SL
- 申请人地址： C. de l'Obervatori Fabra s/n 08035 Barcelona ES
- 专利权人： Starlab Barcelona SL
- 当前专利权人： Starlab Barcelona SL
- 当前专利权人地址： C. de l'Obervatori Fabra s/n 08035 Barcelona ES
- 代理机构： Torner Lasalle, Elisabet
- 国际公布： WO2009130338 20091029
- 主分类号： A61B5/04
- IPC分类号： A61B5/04 ; A61B5/0428
摘要：
The circuit comprises:
- an instrumentation amplifier (Amp1) with:
- a first input (Amp1+) connected to a first receiver electrode (E1) in contact with a first area (A) of a medium (H), and
- a second input (Amp1-),
- a voltage generating device (D) connected to a voltage supplying electrode (E3) in contact with a second area (C) of the medium (H) for applying a direct current reference electrical signal with a fixed value to it,
- compensation means, electrically insulated from the device (D), for compensating the direct current offsets of a weak electrical signal (SE1) received by the first electrode (E2), generating a reference voltage signal (Vref1), with a value which can be modified by means of a control system, and supplying it to the second input (Amp1-).
The method is intended for controlling the circuit.
- an instrumentation amplifier (Amp1) with:
- a first input (Amp1+) connected to a first receiver electrode (E1) in contact with a first area (A) of a medium (H), and
- a second input (Amp1-),
- a voltage generating device (D) connected to a voltage supplying electrode (E3) in contact with a second area (C) of the medium (H) for applying a direct current reference electrical signal with a fixed value to it,
- compensation means, electrically insulated from the device (D), for compensating the direct current offsets of a weak electrical signal (SE1) received by the first electrode (E2), generating a reference voltage signal (Vref1), with a value which can be modified by means of a control system, and supplying it to the second input (Amp1-).
The method is intended for controlling the circuit.
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