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fen xi duo dan wei fa fang de sheng wu dian mai chong xian fu qi
Author(s): 
Pages: 87-91
Year: Issue:  1
Journal: Acta Physiologica Sinica

Keyword:  脉冲限幅器单位发放脉冲密度刺激伪迹增辉脉冲微电极记录序列图针刺镇痛丘脑后核群控制逻辑;
Abstract: It is often necessary to process the data recorded with microelectrodes in com-puter.But the bioelectrical pulses are always amalgamated with noise and stimu-lating artifacts as well as other kinds of bioelectrical activity.This slicer is designedto select the pulses of interest from other signals by amplitude.The wanted am-plitude range can be set freely.When a pulse within the range occurs the slicersends a 0.5 ms square pulse to the computer for processing and at the same timeintensifies the falling edge of the pulse displayed on the oscilloscope.The observerscan dearly see what pulses are selected.This apparatus has been built and used for more than one year.It is founduseful in distinguishing the pulses from different cells and suppressing the noiseand stimulating artifacts.
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