公开(公告)号：US5510779A

公开(公告)日：1996-04-23

申请号：US72608

申请日：1993-06-04

申请人： Frederick L. Maltby ,  L. Jonathan Kramer ,  Leslie D. Horrocks, deceased ,  by Maureen Horrocks, executrix ,  David M. Stern

发明人： Frederick L. Maltby ,  L. Jonathan Kramer ,  Leslie D. Horrocks, deceased ,  by Maureen Horrocks, executrix ,  David M. Stern

IPC分类号： G08C19/02 ,  G08C19/00

CPC分类号： G08C19/02

摘要： An instrument system provides compensation for signal processing errors by processing both sensor signals and reference signals in a common signal processor. Reference signals may be provided which enable zero compensation, gain compensation, or both. The system outputs compensated signals to a two wire signal loop in either analog or digital form, and selects the form of output signal in accordance with digital input signals received from the signal wires. The system may be embodied as a radio frequency admittance instrument system for monitoring the condition of materials.

摘要翻译： 仪器系统通过在公共信号处理器中处理传感器信号和参考信号来提供对信号处理误差的补偿。 可以提供可实现零补偿，增益补偿或两者的参考信号。 系统以模拟或数字形式将补偿信号输出到双线信号回路，并根据从信号线接收的数字输入信号选择输出信号的形式。 该系统可以被实现为用于监视材料状况的射频导纳仪器系统。