铁路客车轴温集中监测报警系统是采用模拟温度传感器和数字式温度传感器进行轴温检测和报警，并完成对轴温检测数据的记录和存储。
Analog temperature sensor and digital temperature sensor are adopted in the axle temperature monitor and alarm system of the passenger train to detect and alarming the axle temperature.
与一般温度传感器输出的量是模拟量所不同的。它的输出是频率数字量，故具有很高的灵敏度、分辨率。
It is different from other temperature sensors in frequency output, high sensitivity, and can be connected directly with microcomputer.
采用电子模拟传感器输出信号的方法不能将温度传感器的测量滞后、故障以及使用现场的噪声等情况反映出来。
For traditional simulation methods, which simulate the output of temperature sensor, measurement lag, fault and the environment noise of temperature sensors can't be considered.
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