Testing and calibration device with diagnostics

Details Testing and calibration device with diagnostics Testing and calibration device with diagnostics

2007-07-24

2007-07-24

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Calibration

C324S130000

Reexamination Certificate

active

10968615

ABSTRACT:
A testing device for determines values of various electrical variables associated with a device within a process system. The testing device provides bi-directional electrical communication with a device to be monitored and automatically provides a connection configuration between a processing unit and a set of input/output ports. The connection configuration governs a bi-directional flow of electrical signals between the processing unit and the device to be monitored. The processing unit outputs a test signal and a configuration control signal to the input/output port control circuitry. The input/output port control circuitry, in response to received test and configuration control signals, automatically provides a connection configuration to direct the test signal to the device to be monitored and to direct a return signal, the return signal being generated by the monitored device in response to the test signal, to the processing unit. The processing unit, based upon the connection configuration of the input/output port control circuitry, measures an electrical characteristic of the return signal and determines at least two electrical variables associated with the monitored device based upon the measured electrical characteristic of the return signal generated by the monitored device.

REFERENCES:
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patent: 5703489 (1997-12-01), Kuroe
patent: 6421624 (2002-07-01), Nakayama et al.
patent: 6671222 (2003-12-01), Wilson et al.
patent: 6958598 (2005-10-01), Xu
patent: 6990423 (2006-01-01), Brown et al.
patent: 2003/0115517 (2003-06-01), Rutten

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