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公开(公告)号：US4423487A
公开(公告)日：1983-12-27
申请号：US208693
申请日：1980-11-20
CPC分类号： F23N5/006 , F23N2023/04 , F23N2023/08 , F23N2025/10 , F23N2027/20 , F23N2031/20 , F23N2031/22 , F23N5/10
摘要： This disclosure relates to apparatus of the kind suitable for taking spot measurements of the heat loss or stack loss and/or efficiency (.eta.) in flue gases (stack loss) and comprises respective sensors (5, 3) for producing output signals which vary with the temperature and the concentration of a constituent gas e.g. O.sub.2 of the flue gases and microprocessor-based computation means (10) arranged to derive measurement values of (and numerically equal to) the measured temperature and constituent gas concentration, from the two sensors and to apply these measurement values in the computation of a predetermined formula relating the stack loss or efficiency to the measured quantities. In accordance with the invention, the apparatus is arranged to automatically calibrate each sensor signal from a test measurement prior to deriving the measurement values. This may be achieved in the case of a sensor having a non-linear response, by performing a calculation of a formula defining the non-linear response of the sensor using a coefficient derived from the test measurement. The sensor output signal is thus automatically calibrated and "linearized" from a single test measurement. The predetermined stack loss or efficiency formula may be modified for different types of fuel, and temperature and O.sub.2 (or CO.sub.2) values used in the calculation as well as the result of the calculation may be presented on a visual display (24).
摘要翻译： 本公开涉及适于对烟气中的热损失或堆垛损耗和/或效率（eta）进行点测量的装置（堆垛损失），并且包括用于产生输出信号的相应传感器（5,3），所述输出信号随着 组成气体的温度和浓度，例如 烟气的O2和基于微处理器的计算装置（10）被布置成从两个传感器导出测量温度和组分气体浓度的测量值（并且数值等于），并且将这些测量值应用于预定的 将堆垛损失或效率与测量量相关联的公式。 根据本发明，该装置被布置成在导出测量值之前从测试测量自动校准每个传感器信号。 这可以在具有非线性响应的传感器的情况下通过使用从测试测量导出的系数来定义传感器的非线性响应的公式的计算来实现。 因此，传感器输出信号将通过单次测试进行自动校准和“线性化”。 可以针对不同类型的燃料修改预定的堆垛损失或效率公式，并且可以在视觉显示器（24）上呈现计算中使用的温度和O 2（或CO 2）值以及计算结果。
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