Abstract: An acoustic monitoring system and method for the health status of an offshore wind turbine and an ocean wave are provided. The acoustic monitoring system includes a first laser transmitter, a second laser transmitter, a telephoto camera provided at a hub, a vibration detection sensor provided on a tower of a wind turbine, and four acoustic detection sensors arranged at an interval of 90° along the circumference of the tower. The first and second laser transmitters are arranged at the bottom of a nacelle of the wind turbine and emit laser lights vertically downward. The first laser transmitter, the second laser transmitter, the telephoto camera, the vibration detection sensor, and the acoustic detection sensors are connected to a data acquisition and conversion module through a transmission module. The acoustic monitoring system combines laser light detection with acoustic signal feature detection to improve stability and safety of the offshore wind turbine.

Abstract: A stacked electrical connector has an insulative housing (1), a plurality of signal contacts (23, 26) and a pair of contacts (24, 27, 25, 28) retained in the housing. The housing defines a mounting surface (19) for mounting on a printed circuit board and a receiving space (12) for receiving a mating plug (9). The switch contact includes a base portion retained in the housing and a spring arm extending from the base portion. An insulative separator (245) is formed on one spring arm and projects into the receiving space. The separator is moveable in a plane vertical to the mounting surface. When the mating plug inserts into the receiving space, the separator rotates and drives one switch contact to connect with the other switch contact.

Abstract: A stacked electrical connector has an insulative housing (1), a plurality of signal contacts (23, 26) and a pair of contacts (24, 27, 25, 28) retained in the housing. The housing defines a mounting surface (19) for mounting on a printed circuit board and a receiving space (12) for receiving a mating plug (9). The switch contact includes a base portion retained in the housing and a spring arm extending from the base portion. An insulative separator (245) is formed on one spring arm and projects into the receiving space. The separator is moveable in a plane vertical to the mounting surface. When the mating plug inserts into the receiving space, the separator rotates and drives one switch contact to connect with the other switch contact.