| 吕鑫,朱毖微,吴茜.基于C8051F040的智能型电接点水位探头二次仪表设计[J].测控技术,2018,37(11):82-85 |
| 基于C8051F040的智能型电接点水位探头二次仪表设计 |
| Design of Intelligent Secondary Instrument for Electrical Contact Level Probe Based on C8051F040 |
| |
| DOI：10.19708/j.ckjs.2018.11.018 |
| 中文关键词: 电接点水位探头 二次仪表 C8051F040 SCADE |
| 英文关键词:electric contact level probe secondary instrument C8051F040 SCADE |
| 基金项目: |
|
| 摘要点击次数: 639 |
| 全文下载次数: 255 |
| 中文摘要: |
| 电接点水位探头是一种工业上常用的液位开关，二次仪表是影响电接点水位探头使用寿命的重要因素，为延长电接点水位探头寿命，提出了一种智能型电接点水位探头二次仪表的设计。二次仪表以C8051F040微控制器为核心并辅以激励电源产生电路、取样电路、多探头巡检电路和输出电路。二次仪表通过微控制器的软件进行控制，软件采用C语言编码，重要代码的编码采用SCADE建模后自动生成。实际测试结果表明，采用上述设计的二次仪表单台可接收8支水位探头信号，总响应时间不超过1 s，能够有效提高水位探头寿命。 |
| 英文摘要: |
| Electrical contact level probe is a kind of level switch commonly used in the industry.The secondary instruments affect probe’s durability quitely.In order to extend the durability of the probe,an intelligent secondary instrument design is presented for electrical contact level probe.The secondary instrument is based on the C8051F040 microcontroller with excitation power circuit,sampling circuit,circulation detection circuit and output circuit.The whole instrument is controlled by software embedded in the microcontroller which is coded in C language.Critical codes are generated automatically by SCADE models.The actual test results demonstrate that the secondary instrument designed as above can deal with eight probes and the total response time is less than 1 s,which can effectively enhance the durability of the probe. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |