EMERSON A6410 扩展监视器 DCS内燃涡轮增压系统

EMERSON A6410 扩展监视器 DCS内燃涡轮增压系统

EMERSON A6410 扩展监视器 DCS内燃涡轮增压系统

A6410测量线圈的涡流传感器连接到振荡器电路中发射机由屏蔽传感器连接电缆。  

振荡器电路产生高频信号，这将导致高频信号  涡流传感器头的磁场。如果这个磁场符合  探针前面的金属靶-例如一个旋转轴，A6410会引起高频电流和相对磁场。  

由于感应二次磁场引起的传感器头附近的磁场损失目标材料中的字段。这种能量损失是叫阻尼。  

振荡器的阻尼系数取决于传感器头和  测量目标。距离越小，阻尼系数越高，因此，振荡器信号的振幅越小。  该发射机提供的输出信号与实际距离成正比专感器头和目标材料。

EMERSON A6410 扩展监视器 DCS内燃涡轮增压系统

A6410 The measurement coil of the eddy current sensor is connected to the oscillator circuit in which the transmitter is connected by a shielded sensor cable.

The oscillator circuit generates a high-frequency signal, which will result in a magnetic field of the high-frequency eddy current sensor head. If this magnetic field conforms to a metal target in front of the probe - such as a rotation axis - the A6410 will cause a high-frequency current and a relative magnetic field.

Field loss in the target material due to induced secondary magnetic field near the sensor head. This loss of energy is called damping.

The damping coefficient of the oscillator depends on the sensor head and the measurement target. The smaller the distance, the higher the damping coefficient and, therefore, the smaller the amplitude of the oscillator signal. The transmitter provides an output signal proportional to the actual distance between the sensor head and the target material.