| 摘要: |
| 根据CINRAD/SC天气雷达体扫时间异常故障现象和原因，可将故障可分为以下2类：一是方位电机和俯仰电机转速变慢；二是俯仰电机升降不及时。针对不同的故障现象，该文从雷达伺服系统、信号处理和网络传输等几方面对体扫时间异常进行分析，对故障原因、故障排查和处理方法进行了详细介绍。由于导致体扫时间异常的因素多，部分故障原因隐蔽性强，给雷达维护带来较大影响，该文的分析可以为一线机务人员快速发现并处理雷达体扫异常提供参考。 |
| 关键词: 体扫模式；时间异常；体扫超时 |
| DOI： |
| 投稿时间：2021-08-17 |
| 基金项目: |
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| Abnormal Volume-Scanning Duration of CINRAD/SC Weather Radar |
| ZOU Hong,WANG Jun,QING Pingchu |
| (Nanchong Meteorological Bureau of Sichuan Province, Nanchong 637000 ,China;Mianyang Meteorological Bureau of Sichuan Province, Mianyang 621000 , China) |
| Abstract: |
| According to the abnormal faults of CINRAD/SC weather radar volume scanning time, the faults can be divided into the following two categories: first, the rotation speed of azimuth motor and pitch motor is slow; second, the pitch motor does not rise and fall in time. In view of different fault phenomena, this paper analyzes the abnormal volume scanning time from the aspects of radar servo system, signal processing and network transmission, and introduces the fault causes, troubleshooting and processing methods in detail. Due to many factors leading to abnormal volume scanning time, some fault reasons are highly hidden, which has a great impact on radar maintenance. The introduction of this paper can provide reference for front-line maintenance personnel to quickly find and deal with abnormal volume scanning radar. |
| Key words: volume scanning mode； time anomaly； volume scanning overtime |
