Digitally modified resistive output for a temperature sensor
AssigneeYSIS Incorporated
InventorsJack P. Shidemantle, Robert A. Kill
Life of this patent
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Abstract
A method for digitally controlling the resistive output of a temperature probe is disclosed. The system is comprised of a temperature sensor, a processor and a means under the control of the processor for modifying the resistive output such as a digital potentiometer. In one embodiment, the processor reads the temperature sensor and adjusts the potentiometer based on a correlative or predictive technique so as to provide a modified output that matches that of a standard resistive temperature probe and is compatible for display on a multiparameter monitor.
Claims25
A temperature probe comprising:
- a temperature sensor that provides a resistive output,
- a logic circuit for determining a modified resistive output for the temperature sensor, and
- a means for providing the modified resistive output.
A monitor interface for a temperature probe comprising:
- a logic circuit for determining a modified resistive output for the temperature sensor and
- a means for providing the modified resistive output.
A temperature probe comprising:
- a temperature sensor having a resistive output,
- a processor for determining a modified resistive output for the temperature sensor, the processor being programmed to execute a predictive or a correlative algorithm, and
- a potentiometer for providing the modified resistive output in response to a signal from the processor.
19 The temperature probe of claim 16 wherein the probe includes two potentiometers.
An interface for converting the resistive output of a temperature sensor to a modified resistive output for display on a monitor comprising:
- a logic circuit,
- an input to the logic circuit from a temperature sensor,
- an output from the logic circuit,
- the logic circuit being programmed to execute a predictive or a correlative algorithm, and
- a means for providing a resistance corresponding to the predicted or correlated output.
A method for digitally modifying the resistive output of a temperature sensor which comprised inputting the resistive output from the temperature sensor to a logic circuit, implementing a predictive or a correlative algorithm using the logic circuit to determine a modified resistive output, signaling a potentiometer to adopt a setting corresponding to the modified resistive output, and outputting a resistance corresponding to the modified resistive output.
Dependencies are inferred from the claim text.