A microcontroller-based implantable telemetry system for sympathetic nerve activity and ECG measurement
A microcontroller-based implantable telemetry system for sympathetic nerve activity and ECG measurement
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DOI：
10.1109/iembs.1997.758803
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发表时间：
1997-10
期刊：
影响因子：
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通讯作者：
Chisato Enokawa;Y. Yonezawa;H. Maki;M. Aritomo
中科院分区：
文献类型：
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作者：
Chisato Enokawa;Y. Yonezawa;H. Maki;M. Aritomo
采用低功耗8位微控制器的无源植入式遥测系统已设计用于慢性未麻醉小动物研究。植入式肾神经活动和ECG系统由感应耦合供电。神经信号（NS）和ECG放大器的增益由微处理器通过以144 bps调制的发射功率的开关键控来控制。来自NS和ECG放大器的模拟信号均转换为8位串行数字格式。这是由单个微控制器中包含的两个8位A/D转换器完成的。将转换后的二进制码应用于无源RLC串联谐振电路，并通过电磁波传输。
A passive implantable telemetry system employing a low power 8 bit microcontroller has been designed for chronic unanesthetized small animal studies. The implantable renal nerve activity and ECG system is powered by induction coupling. The gains of the neural signal (NS) and ECG amplifiers are microprocessor-controlled by on-off-keying of transmitted power modulated at 144 bps. Analog signals from the NS and ECG amplifiers are each converted to an 8-bit serial digital format. This is accomplished by two 8-bit A/D converters included in the single microcontroller. The converted binary code is applied to a passive RLC serial resonant circuit and transmitted by electromagnetic wave.