随着自动控制领域的高速发展,实现高精度参数采集变得非常重要。实现高精度的参数采集处理目前主要有并行A/D转换和串行A/D转换两种方式,而串行方式以其精度高且成本低廉被广泛应用。它主要有两种有代表性的实现形式(A/D申行、V/F方式)。着重讨论在模拟机参数采集处理应用中采用V/F转换实现稳定性好、抗干扰能力强而且应用简单和成本低廉的良好效果。 With the rapid development in the field of automatic control, it becomes very important to achieve high-precision parameter acquisition. Achieve high-precision parameter acquisition and processing are mainly parallel A / D conversion and serial A / D conversion in two ways, while the serial method with its high precision and low cost is widely used. It mainly has two representative forms of realization (A / D application, V / F). It focuses on the good effect of using V / F conversion to achieve good stability, strong anti-interference ability, simple application and low cost in the application of analog parameter acquisition processing.