2results about How to "Speed ​​real-time control" patented technology

This utility model belongs to the field of handheld fan technology and discloses an intelligent handheld fan that can automatically adjust the wind speed according to the ambient temperature. The fan includes a fan handle, a base, and a housing. The housing is fixed to the upper side of the fan handle, and the base is detachably installed on the lower side of the fan handle. The fan handle contains components such as a temperature sensor and a touch sensor. Through the cooperation of the touch sensor and a latching assembly, the fan automatically turns on when picked up and immediately turns off when released. When the fan is placed on a table, it can be turned off simply by tapping it, avoiding frequent button operations and significantly simplifying the fan start-up and shutdown process. Furthermore, the temperature sensor detects the ambient temperature and automatically adjusts the fan speed, enabling the fan to intelligently change its wind output according to the usage environment, achieving a more convenient and efficient wind control method.

The application provides a speed control system of a weak magnetic method stress on-line detector and a control method thereof. The detector speed control system is used for detecting a component to be detected. The detector speed control system comprises a control structure and a control module. The control structure and the control module are signal connected. The control structure comprises an inner shell, an outer shell, a driving motor, a blade, a first flow hole, a second flow hole and a speed measuring sensor. The inner shell is arranged in the outer shell. The first flow hole is arranged between the inner shell and the outer shell. The driving motor is arranged in the inner shell. The output end of the driving motor is connected with a rotating rod. One end of the rotating rod which is arranged to pass through the side wall of the inner shell is connected with the blade. A plurality of second flow holes are arranged on the side wall of the outer shell which is close to the blade. The first flow hole is connected with the second flow hole. The problems that the existing nondestructive detection device cannot control the running speed when working in the pipeline, the detection precision is poor, the detection time is increased and the detection efficiency is reduced are solved.