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US 6,661,241 B2Granted
Temperature control for conductive member
AssigneeNagoya Institute of Technology
InventorsTakao Tsuda, Ken Naito
Life of this patent
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Abstract
A device for controlling the temperature of a conductive member, which detects the electrical resistance of the conductive member, calculates the temperature of the conductive member based on the detected electric resistance, and adjusts the temperature of the conductive member based on the calculated temperature, is disclosed.
Claims5
A device for controlling the temperature of a conductive member comprising:
- means for detecting the value of the electrical resistance of the conductive member on the order of 10−4 ohms utilizing a pulse current having a predetermined pulse width;
- means for calculating the temperature of the conductive member based on the electrical resistance detected by the means for detecting the electrical resistance;
- and
- means for adjusting the temperature of the conductive member based on the temperature calculated by the means for calculating the temperature.
1 more element
A gas chromatographic system comprises:
- a gas chromatograph,
- a trap tube for sampling gas to be supplied to the chromatograph, the trap tube being made of a conductive material, and
- a device for controlling the temperature of the trap tube including:
- means for detecting the electrical resistance of the conductive member on the order of 10−4 ohms utilizing a pulse current having a predetermined pulse width;
- means for calculating the temperature of the conductive member based on the electrical resistance detected by the means for detecting the electrical resistance;
- and
- means for adjusting the temperature of the conductive member based on the temperature calculated by the means for calculating the temperature.
4 more elements
Dependencies are inferred from the claim text.