Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate
2006-06-13
2006-06-13
Hoang, Tu (Department: 2832)
Electric heating
Heating devices
With power supply and voltage or current regulation or...
C219S497000
Reexamination Certificate
active
07060946
ABSTRACT:
An analytical device includes a heat output portion for heating an interior of a housing with which an analyzing portion is surrounded; a first temperature sensor for measuring a temperature of the analyzing portion; a second temperature sensor for measuring a temperature of an interior of the housing; and a control portion. The control portion determines a setting value of the temperature in the housing according to a transfer function of a PID control based on a difference between a preset temperature of the analyzing portion and the temperature measured by the first temperature sensor. Further, the control portion determines an output value of the heat output portion according to a transfer function of PID control based on a difference between the setting value of the temperature in the housing and the temperature measured by the second temperature sensor.
REFERENCES:
patent: 5875416 (1999-02-01), Kanno
patent: 6911628 (2005-06-01), Hirayama
patent: 6951998 (2005-10-01), Nanno et al.
patent: 200417055 (2004-06-01), None
Hoang Tu
Kanesaka Manabu
Shimadzu Corporation
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