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US 6,550,961 B1Granted
Thermal conductivity detector
AssigneeShimadzu Corporation
InventorMasahito Ueda
Life of this patent
Estimating the term…
Abstract
A thermal conductivity detector includes not only a thermal conductivity detector cell disposed so as to be heated by heat transmitted from a first heater block and a column connector connected to the detector cell and to a column of a chromatograph but also a second heater block for heating the column connector. The heaters for individually heating these two heater blocks are controlled simultaneously and in synchronism by a single temperature controller according to the temperature of the first heater block for heating the detector cell.
Claims10
A thermal conductivity detector comprising:
- a thermal conductivity detector cell;
- a column connector connected to said thermal conductivity detector cell for connecting to a column of a chromatograph;
- a first heater block for heating said thermal conductivity detector cell;
- a first heater for heating said first heater block;
- a temperature sensor for sensing temperature of said first heater block;
- a second heater block disposed for heating said column connector;
- a second heater for heating said second heater block;
- and
- a temperature controller for controlling power supplied to said first heater and to said second heater simultaneously in synchronism according to temperature of said first heater block.
6 more elements
Dependencies are inferred from the claim text.