高精度的深度和速度测量方法的实现

文章介绍了马丁代克的四倍频脉冲检测电路，充分利用编码器的固有分辨力，有效提高深度计数的精度。对常规速度计算方法进行分析，根据外接不同系数的编码器，提出测量时间变化的定时方法以简化乘除法运算，缩短测量时间，减少计算工作量，使计算误差为零，提高速度测量的精度。

Realization of depth measurement and velocity measurement with high precision

A quadrupler frequency circuit is applied to take advantage of the inherent resolution of encoders, and improve the counting precision effectively. The current computational method of velocity measurement is analyzed, and a timing technique with a changeable constant is introduced for different coefficients of encoders. A simplified computational method is presented in this paper so as to transform complicated multiplication and arithmetic division into contracted multiplication, which decreases calculation workload, improves the measuring precision, eliminates the calculation error, cuts down the measuring time, and then obtains successful application in the new hoist panel system for well logging.