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US 10,481,136 B2Granted
Chromatographic system temperature control system
AssigneeValco Instruments Company, L.P.
InventorsStanley D. Stearns, Huamin Cai, Chris Bishop, Robert Simpson, Chris S. Cowles, Dale Ashworth, Douglas Dailey
Life of this patent
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Abstract
A temperature controller for simultaneously controlling the temperatures of a plurality of heating elements for use in chromatographic analysis including columns, detectors, valves, transport lines and other components.
Claims1
A method for controlling at least two chromatographic components in a chromatographic system, comprising:
- determining a power/temperature relationship for a first component;
- determining a power/temperature relationship for a second component;
- receiving a time/temperature profile for the first component;
- receiving an input identifying whether a time/temperature profile for the second component will track an actual time/temperature profile of the first component;
- applying power to the first component to alter a temperature of the first component according to the power-temperature relationship for the first component;
- obtaining a temperature measurement of the first component;
- constructing the actual time-temperature profile of the first component;
- adjusting a first component power supplied to the first component to alter the temperature of the first component according to the power-temperature relationship for the first component as determined by the temperature measurement of the first component;
- applying a second component power to the second component to alter the temperature of the second component according to one of the power-temperature relationship for the first component and the actual time-temperature profile of the first component;
- obtaining a temperature measurement of the second component;
- adjusting the first component power supplied to the first component to alter the temperature of the second component according to one of the group of relationships consisting of the power-temperature relationship for the first component and the actual time-temperature profile of the first component as determined by the temperature measurement of the second component.
8 more elements
Dependencies are inferred from the claim text.