Abstract: At present， produces one to use the manual chemical examination the method to examine uses the note boiler furnace hotly the movement situation， this method has the big personal error and the hysteresis quality， has to a great extent affected the note steam dryness test In order to solve this problem， picks the craft necessary technology hotly along with the thick oil the development， the water/steam two phase current dynamic monitor technology development， appeared two phase current microcomputer observation and control Two phase current microcomputer observation and control technology is with the standard throttling gear measured two phase currents dryness and the current capacity， and summarize a new technology take this as the foundation which and develops， may survey each note steam parameter effectively， automatic detection note boiler furnace movement At the same time， its concise direct-viewing man-machine contact surface， may satisfy the field use request Key word: Two phase currents; Note steam parameter; Note boiler furnace; Dryness; Current capacity
