重锤料位计原理及其固件程序设计

Principle of Heavy Hammer Level Meter and Its Firmware Program Design

重锤料位计是用于监测料斗、筒仓和其他类型容器内粉末、颗粒料位高度的传感器,直接测量料仓顶部无料空间距离,间接计算出料仓内的物料高度,能在大粉尘、湿度变化大等极端恶劣环境下准确测量,是这方面料位测量的首选工具。基于对传统重锤料位仪表基础上进行改进,采用系统状态机的思路对仪表固件程序进行重新设计和编写,自主设计和开发了一款新型的重锤料位计控制仪表。仪表具有测量、计算、设置、菜单、控制、报警、故障在线监测等多项功能,各项功能及技术指标均达到设计要求,现已成功应用于生产现场。

Heavy-hammer level meter is type of sensor used to monitor the heights of powder or particles in hoppers, silos and other types of containers. The level meter directly measures the distance of free space at the top of the silo and indirectly calculates the height of the material in the silo. It can complete measurement accurately in the extreme bad environment, such as high dust concentration and humidity, which is the first choice of the level measurement in this field. Based on the improvement of the traditional heavy hammer level meter, the finite state machine model is adopted to redesign the firmware program. A new type of heavy hammer level control instrument is designed and developed independently. The instrument has many functions such as measurement, calculation, setting, system menu, control, alarm, on-line fault monitoring and so on, and all the functions and technical indexes reach the design requirements. The instrument has been applied to the production site successfully by now.