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US 2017/0248476 A1Published application
Resistance temperature detection with single current source current splitter
AssigneeGE Intelligent Platforms Embedded Systems, Inc.
InventorsAlan Carroll Lovell, Bruce Henderson
Life of this patent
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Abstract
A RTD measurement device comprises a current splitter connected to a single current source. The current splitter splits the current from the current source into two currents and continuously monitors the two currents and adjusts them to be the same value.
Claims20
An apparatus, for measuring a resistance temperature detector (RTD), comprising:
- a current splitter, connected to a current source, receiving a source current from the current source, and providing a first current on a first current path and a second current on a second current path,
- wherein the first current and the second current are adjusted by the current splitter and the first current path and the second current path are connected to the RTD.
A method, for measuring a resistor-thermal device (RTD), comprising the steps of:
- receiving a source current by a current splitter;
- generating a first current and a second current by the current splitter;
- adjusting the first current and the second current by the current splitter;
- measuring the first current;
- and
- measuring a voltage across the RTD.
3 more elements
Dependencies are inferred from the claim text.