The LDV/APV, DPIV and advanced DPIVS systems were used to measure the spray characteristics.To varying degrees, the traditional water mist nozzles have disadvantages.

• 细水雾的雾特性参数决定了它的灭火性能，目前对其测量的主要方法有LDV/APV、DPIV及扩展的DPIVS技术。