Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Patent
1998-03-17
2000-04-18
Lee, Thomas C.
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
702 57, 702 85, 702 86, 702104, 702127, 710 15, 710 18, 710129, 710130, G06F 501
Patent
active
060526556
ABSTRACT:
A signal converter which receives signals from a plurality of sensor terminal ends to detect physical quantities in a plant and conducts a necessary correction for the signals to send the signals to a host computer or which transmits signals from the host computer to operation terminal ends in the plant includes a sensor terminal end amplifier including a processing unit for receiving a signal from a sensor terminal end and conducting a predetermined amplifying operation for the signal and a storage unit in which information items related to the sensor terminal and the processing unit are stored, an operation terminal end amplifier including a converting unit for converting signals into predetermined control signals which can be received by the operation terminal end and a storage unit in which information items related to the operation terminal end and the converting unit are stored, and a signal converting section including a connecting unit for connecting the sensor terminal amplifier section to the operation terminal amplifier section and a signal processing unit for conducting signal processing to communicate with the host computer.
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Fujita Masahiro
Kitakami Shigemi
Kobayashi Teruo
Nagase Ryoichi
Noguchi Shinzou
Hitachi , Ltd.
Lee Thomas C.
Yuan Chien
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