US 2019/0025262 A1 · REFRIGERANT INTRODUCER AND GAS CHROMATOGRAPH

Abstract

A controller includes a temperature prediction unit. The temperature prediction unit predicts, on the assumption that a refrigerant is fed from a refrigerant feeder, an internal temperature of a column oven based on time interval information and decrement information in a memory. Thus, the temperature prediction unit can accurately predict the internal temperature of the column oven when the refrigerant is fed from the refrigerant feeder. If the refrigerant is fed from the refrigerant feeder when the predicted internal temperature of the column oven is suitable for the analysis operation, the internal temperature of the column oven can be brought closer to an appropriate temperature. As a result, the internal temperature of the column oven can be controlled with precision.

Claims9

Dependent claims

A refrigerant introducer for cooling a cooling target provided for a gas chromatograph, the refrigerant introducer comprising:

a refrigerant feeder intermittently feeding a refrigerant to the cooling target at predetermined time intervals;
a memory storage, and associating with one another, time intervals and a decrement of a temperature of the cooling target when the refrigerant has been fed to the cooling target at the time intervals;
and
a temperature prediction unit predicting the temperature of the cooling target based on a relationship between the time intervals and the decrement stored in the memory.

1 more element

Dependencies are inferred from the claim text.

Refrigerant introducer and gas chromatograph

Life of this patent

Refrigerant introducer and gas chromatograph

Life of this patent

Abstract

Claims9