A new testing method that synchronal measuring the gap, over stroke and pressure between two piece of relay springs online was researched and experimented.

• 为满足继电器大规模、高效率、日渐自动化生产的需要,试验研究了一种新的测试方法,便于在线同步测试继电器动簧片与静簧片之间的气隙、超行程和接触压力。