矿用防爆无轨胶轮车温度监测电路设计

Design of temperature monitoring circuit of mine-used explosion-proof trackless rubber-tyred vehicle

  • 摘要: 针对现有矿用防爆无轨胶轮车温度监测方法存在温度测量范围窄、误差大的问题,设计了矿用防爆无轨胶轮车温度监测电路。该电路选择薄膜铂电阻作为传感元件,采用非线性电桥采集电路和运算放大电路采集微弱变化的电阻信号,利用非线性和线性计算方法计算出电阻值,从而通过电阻值计算出被测部件的温度值。实际应用表明,该电路运行稳定可靠,为矿用防爆无轨胶轮车电气执行部件可靠控制提供了稳定的基础支撑。

     

    Abstract: In view of the problem of measurement narrow range and great error of temperature monitoring method for existing mine-used explosion-proof trackless rubber-tyred vehicle, a temperature monitoring circuit of mine-used explosion-proof trackless rubber-tyred vehicle was designed. The thin film platinum resistor was chosen as the sensing element of the circuit, nonlinear bridge sampling circuit and operational amplifier circuit were used to collect weak resistance signals, nonlinear and linear calculation method were used to calculate the resistance value, so as to calculate the temperature of tested unit by resistance value. The actual application shows that the circuit is stable and reliable in running, which provides a stable foundation support of reliable control for mine-used explosion-proof electrical rubber-tyred vehicle.

     

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