摘要:
A piezoelectric power generator using wind power is provided. To elaborate, the piezoelectric power generator has a central axis unit with a charger, a piezoelectric film supporting frame engaged onto an outer circumference surface of the central axis unit, and a piezoelectric film having a pre-set area and at least one side engaged to at least one of one side part of the piezoelectric supporting frame and the central axis unit. In addition, the piezoelectric film supporting frame has a shape corresponding to a shape of an edge of the piezoelectric film to surround the edge of the piezoelectric film.
摘要:
A piezoelectric power generator using wind power is provided. To elaborate, the piezoelectric power generator has a central axis unit with a charger, a piezoelectric film supporting frame engaged onto an outer circumference surface of the central axis unit, and a piezoelectric film having a pre-set area and at least one side engaged to at least one of one side part of the piezoelectric supporting frame and the central axis unit. In addition, the piezoelectric film supporting frame has a shape corresponding to a shape of an edge of the piezoelectric film to surround the edge of the piezoelectric film.
摘要:
A printer nozzle apparatus, including a nozzle that sprays ink, at least one vibration unit that is arranged on one surface of the nozzle and of a ring shape, and a controller that controls a vibration frequency of the vibration unit.
摘要:
A warning alarm apparatus for a steering wheel includes at least one piezoelectric transducer provided in the rim of the steering wheel; a current supplier; one or more sensors, equipped in the steering wheel or a motor vehicle, sense a dangerous factor; and a controller that determines whether a sensor value sensed by the sensor is included in a warning alarm range, and controls operation of the current supplier according to the sensor value.
摘要:
There is provided a flow meter using at least one ultrasonic transducer. The flow meter includes an ultrasonic transducer, a wedge that has a sloped surface formed on a top portion of the wedge and oblique with respect to a downward direction, and a dented portion formed in a half-cylinder shape along a longitudinal direction of the sloped surface; and a rotation portion that has a plane section where the ultrasonic transducer is positioned, and a curved section extended from two opposite edges of the plane section and curved in a semicircular shape to be contacted with the dented portion.
摘要:
There is provided a flow meter using at least one ultrasonic transducer. The flow meter includes an ultrasonic transducer, a wedge that has a sloped surface formed on a top portion of the wedge and oblique with respect to a downward direction, and a dented portion formed in a half-cylinder shape along a longitudinal direction of the sloped surface; and a rotation portion that has a plane section where the ultrasonic transducer is positioned, and a curved section extended from two opposite edges of the plane section and curved in a semicircular shape to be contacted with the dented portion.
摘要:
A warning alarm apparatus for a steering wheel includes at least one piezoelectric transducer provided in the rim of the steering wheel; a current supplier; one or more sensors, equipped in the steering wheel or a motor vehicle, sense a dangerous factor; and a controller that determines whether a sensor value sensed by the sensor is included in a warning alarm range, and controls operation of the current supplier according to the sensor value.
摘要:
A printer nozzle apparatus, including a nozzle that sprays ink, at least one vibration unit that is arranged on one surface of the nozzle and of a ring shape, and a controller that controls a vibration frequency of the vibration unit.