某型装备高精度液体流量监测仪设计与实现

Design and Realization of High Precision Liquid Flow Monitor for the Certain Equipment

摘要:

针对某型导弹发射车液体流量监测方面存在的不足进行了深入的研究，解决传统测试方案精度低、易受干扰和温度适应性差等缺陷。结合多项实验数据，分析问题产生的原因。在硬件方面，创新地将霍尔器件应用于流量采集，并介绍后端处理电路的设计，为适应多场合的应用需求，增加锂电池和RS485总线输出接口；在软件方面，优化频率测量方法，有效降低处理器负荷；采用实时温度采集与补偿的方法，最大限度避免温度造成的误差；以树形菜单的形式，从广义的角度去实现整个架构，避免多层循环嵌套，为用户提供友好的操作界面。测试结果表明，监测仪综合性能上大幅优于传统设备，同时具有较强的稳定性和可靠性。目前该型流量监测仪已成功通过验收。

Abstract:

Aiming at the shortcomings of liquid flow monitoring of missile launcher, a deep research is carried out to solve the defect of traditional test scheme, such as low precision, easy interference and poor temperature adaptability. Analyze the reason of the problem by combining a lot of experimental data. In hardware, Holzer device is innovatively applied to collect liquid flow; besides, the design of processing circuit is introduced. In order to meet the needs of multi applications, RS485 bus and lithium battery is increased. In software, the optimization method of frequency measurement is used to effectively reduce the processor load. The errors are avoided by the method of real-time temperature compensation. Adopting a form of tree menu, it’s easily to realize the whole architecture as a generalized view and effectively avoid multiple cycles. Users are provided a friendly GUI. The test results show that the comprehensive performance of the monitor is not only much better than the traditional equipment but also has a powerful stability and reliability. This type of flow monitor has been successfully passed through acceptance now.