公开(公告)号：US20130134999A1

公开(公告)日：2013-05-30

申请号：US13734345

申请日：2013-01-04

Applicant: Tektronix, Inc.

Inventor： Josiah A. Bartlett ,  Ira G. Pollock ,  Daniel G. Knierim ,  Michael Duane Stevens

IPC: G01R23/16

CPC classification number: G01R23/16 ,  G01R1/06766 ,  G01R1/06772 ,  G01R35/00

Abstract: A signal acquisition system has a signal acquisition probe having probe tip circuitry coupled to a resistive center conductor signal cable. The resistive center conductor signal cable of the signal acquisition probe is coupled to a compensation system in a signal processing instrument via an input node and input circuitry in the signal processing instrument. The signal acquisition probe and the signal processing instrument have mismatched time constants at the input node with the compensation system having an input amplifier with feedback loop circuitry and a shunt pole-zero pair coupled to the input circuitry providing pole-zero pairs for maintaining flatness over the signal acquisition system frequency bandwidth.

Abstract translation: 信号采集系统具有信号采集探针，其具有耦合到电阻中心导体信号电缆的探针尖端电路。 信号采集探头的电阻中心导体信号电缆通过输入节点和信号处理仪器中的输入电路耦合到信号处理仪器中的补偿系统。 信号采集探头和信号处理仪器在输入节点处具有不匹配的时间常数，补偿系统具有带反馈回路电路的输入放大器和耦合到输入电路的并联极点对，提供极 - 零对以保持平坦度 信号采集系统频率带宽。