Measure wireless device of steam turbine extraction check valve shut -in time

The utility model relates to a measure wireless device of steam turbine extraction check valve shut -in time. Still there is not at present the ability wireless device of convenient survey unit extraction check valve shut -in time. The utility model discloses a radio network gateway and computer, its characteristics are: still include converter, signal generator, wireless repeater, displacement sensor and no. Two signal generator, displacement sensor includes interior axle, spring leaf, rope form part, shaft joint summation potential ware, and the one end of interior axle is connected on the spring leaf, and the other end passes through shaft joint summation potential ware and connects, epaxial including the rope form part winds, the other end of rope form part is connected on extraction check valve's valve rod, and interior axle and valve rod are perpendicular, potentiometre and converter are connected, and converter and a signal generator connect, a signal generator and no. Two signal generator equal and wireless repeater wireless connection, wireless repeater and radio network gateway wireless connection. The utility model discloses can the convenient survey unit extraction check valve shut -in time.