JTY-Ⅲ型塔钟干扰分析及对策

Analysis of Interferences to JTY-ⅢTower Colockand Countermeasure

分析了电源噪声、火花放电噪声对ＪＴＹ－Ⅲ型塔钟的影响。提出了抑制雷电浪涌、抑制继电器的脉冲噪声、抑制电网噪声、抑制火花放电噪声等硬件抗干扰措施，配合一定的软件措施，实现了ＪＴＹ－Ⅲ型塔钟全天候、全自动、免维护运行。

The influences of electric spark noise and power supply noise on JTY-Ⅲ tower colock are analysed. The method restraining the interferences of the surge of thunder and light- ning, the pulse noise of a relay, the power supply noise, and electric spark noise are suggested. Using some software measures, JTY-Ⅲ tower colock can work automatically without up-hold- ing in any climate.