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    • 10. 发明授权
    • Temperature control system for liquid chromatographic columns employing
a thin film heater/sensor
    • 使用薄膜加热器/传感器的液相色谱柱的温度控制系统
    • US4484061A
    • 1984-11-20
    • US377627
    • 1982-05-13
    • Richard J. ZelinkaCarl W. Sims
    • Richard J. ZelinkaCarl W. Sims
    • G01N30/30H05B3/58H05B1/02F16L53/00F24H1/12G01N31/08
    • G01N30/30H05B3/58G01N2030/3015G01N2030/3061G01N2030/3069Y10T137/6606
    • A temperature control system for a liquid chromatographic column includes a thin film heater/sensor comprising a foil-like patterned heating element adhesively mounted between a pair of flexible electrically insulative layers. A patterned foil-like temperature sensing element is also coextensively adhesively mounted between the insulative layers in temperature sensing relationship to the heating element. The thin film heater/sensor is wrapped around the chromatographic column and is uniformly compressively secured in contact therewith by a spirally tubularly wound length of flexible wrapping. A remote temperature sensing element controls the heat output of the heating element a linear proportional fashion, thereby maintaining a predetermined temperature gradient over the length of the column. A pre and post-column heaters may be similarly wrapped with a thin film heater/sensors so as to appropriately control the temperature of the liquid entering or leaving the column. The heater/sensor may include a plurality of foil-like patterned heating elements and sensors displaced along the length of the column to define a plurality of heating zones controlled by a patterned foil-like temperature sensing element in sensing relation to respective one of the zones.
    • 用于液相色谱柱的温度控制系统包括薄膜加热器/传感器,其包括粘合地安装在一对柔性电绝缘层之间的箔状图案化加热元件。 图案化的箔状温度感测元件也以与加热元件的温度感测关系共同延伸地粘附在绝缘层之间。 薄膜加热器/传感器被包裹在色谱柱周围,并通过螺旋缠绕的柔性包装的长度被均匀地压缩固定成与其接触。 远程温度感测元件以线性比例的方式控制加热元件的热​​输出,从而在柱的长度上保持预定的温度梯度。 前柱和后柱加热器可以类似地用薄膜加热器/传感器包裹,以便适当地控制进入或离开塔的液体的温度。 加热器/传感器可以包括多个箔状图案化的加热元件和沿着柱的长度移位的传感器,以限定由图案化的箔状温度感测元件控制的多个加热区域,以感测与相应的一个区域 。