HIGH RESOLUTION MEASUREMENT OF THERMISTOR THERMOMETRY SIGNALS WITH WIDE DYNAMIC RANGE
    1.
    发明公开
    HIGH RESOLUTION MEASUREMENT OF THERMISTOR THERMOMETRY SIGNALS WITH WIDE DYNAMIC RANGE 审中-公开
    HochauflösendeMessung von热敏电阻 - Thermometriesignalen mit Weitem Dynamikbereich

    公开(公告)号:EP2390638A2

    公开(公告)日:2011-11-30

    申请号:EP11156112.2

    申请日:2011-02-25

    IPC分类号: G01K7/25

    CPC分类号: G01K7/25 G01K2219/00

    摘要: A thermistor amplifier device comprising a first amplifier and a second amplifier is provided. The first amplifier generates an analog temperature signal output based on a voltage across at least one thermistor. The second amplifier generates an offset voltage input to the first amplifier, wherein the offset voltage is based on maintaining the analog temperature signal within a predefined voltage range. The second amplifier selects the offset voltage corresponding to one of a plurality of range levels, wherein each of the plurality of range levels is associated with a temperature range of the at least one thermistor.

    摘要翻译: 提供一种包括第一放大器和第二放大器的热敏电阻放大器装置。 第一放大器基于至少一个热敏电阻上的电压产生模拟温度信号输出。 第二放大器产生输入到第一放大器的偏移电压,其中偏移电压基于将模拟温度信号保持在预定电压范围内。 第二放大器选择对应于多个范围电平中的一个的偏移电压,其中多个范围电平中的每一个与至少一个热敏电阻的温度范围相关联。