电气量继电器中应用最广的一种：电磁式继电器，由于其工作温度宽，抗振动性强，工作稳定，成本经济等因素，被广泛应用汽车行业中。本文即是基于NI虚拟仪器的针对此种继电器的成品综合测试而配置的方案。-Electromagnetic relay: due to its working temperature, vibration and strong, stable, cost, economic and other factors, are widely used in the automotive industry. This article describe the electromagnetic relay　test system based on NI Virtual Instrumentation products.