检测机车动轮的空转有各种方法,近代较先进的方法是直接检测各动轮对的转速差及其加速度。因为这种方法更为精确,所以得到日益重视和应用。对组合传动机车来讲(如液力传动机车,单电机转向架机车)只能采用检测加速度的方法。对独立传动机车来讲,要发现所有动轮对同时空转也只能采用检测加速度的方法。因此,研究加速度检测电路是很有实际意义的。以往加速度检测电路通常采用模拟方式。对车轴测速发电机电压进行模拟微分,以此来判断空转是否发生。这种电路的优点是响应快。但精度差,稳定性差,难以调试和整定。随着数字集成电路的发展,采用数字式加速度检测电 There are various ways to detect the idling of locomotive running wheels. The more advanced method in modern times is to directly detect the speed difference and acceleration of each running wheel pair. Because of this method is more accurate, so get more and more attention and application. On the combination of locomotives (such as hydraulic locomotive, single motor bogie locomotive) can only be used to detect acceleration. In terms of independent drive locomotive, to find all the wheels on the same idling can only be used to detect acceleration. Therefore, the study of acceleration detection circuit is of great practical significance. In the past, the acceleration detection circuit usually adopted the analog method. Analog differential of the axle speed generator voltage is used to determine if idling has occurred. The advantage of this circuit is fast response. However, poor precision, poor stability, it is difficult to debug and tuning. With the development of digital integrated circuits, digital acceleration detection circuit