30results about How to "Monitor Vibration" patented technology

The invention discloses a method and a system for diagnosing abnormal vibration of an intelligent spindle. A vibration pickup ring and a fixing ring are sleeved on the spindle, cantilevers are respectively arranged on the front, rear, left and right of the vibration pickup ring, and an optical path corresponding to the cantilever is arranged on the fixing ring. , a laser and a photodetector are respectively set at the entrance and exit of the optical path, and a fracture for the cantilever to be inserted is set on the optical path. The vibration pick-up ring can pick up the vibration of the main shaft in the horizontal and vertical directions in the radial plane. When the vibration of the main shaft is accompanied by the vibration of the main shaft, the vibration pick-up ring will drive the cantilever to move in the fracture, interfere with the transmission of light in the optical path, and change the photoelectric detection. light intensity received by the receiver. In this way, the light intensity received by the photodetector can be collected and the light intensity change can be calculated, the mapping relationship between the light intensity change and the vibration displacement can be obtained by calibration and least squares fitting, and then the main axis in the radial plane can be obtained according to the mapping relationship. According to the vibration situation obtained, the abnormal vibration of the main shaft can be diagnosed.

The invention discloses a novel Pelteobagrus fulvidraco transportation method based on intelligent control. According to the invention, Pelteobagrus fulvidraco is narcotized with anesthetics and placed into a live fish box; the interior of the box body of the live fish box comprises a water body and a boat body floating on the surface of the water body; the interior of the boat body is provided with a core control member which is connected with dissolved oxygen, pH and temperature sensors arranged in the interior of the water body and with vibration, noise and air-quality sensors which are arranged at the exterior of the water body and used for capturing environmental information of the interior of the live fish box in real time; the interior of the water body is also provided with a temperature control device; the boat body is provided with a negative-ion air purifying device; in addition, a terminal device is arranged and used for receiving and processing signals of sensors and controlling the boat body to move; thus, accurate control and adjustment of the quality of water in the transportation process of the Pelteobagrus fulvidraco is realized through evaluation of the transportation water quality of the Pelteobagrus fulvidraco by artificial neural network modeling. The method provided by the invention is unique and practical, realizes reliable and comprehensive informationacquisition, thereby guaranteeing the long-distance transportation safety of the Pelteobagrus fulvidraco.

The invention is applicable to the field of the passive and wireless technology, and provides a passive wireless sensing device, which comprises a reed switch, a microcontroller, an energy management control unit, a wireless transceiver, a photovoltaic energy collector and an energy storage unit. The energy storage unit is connected with the energy management control unit, and the photovoltaic energy collector is also connected with the energy management control unit. The device also comprises a vibration / displacement / inclination sensor which is connected with the microcontroller and is used for monitoring whether glass is broken, whether building equipment vibrates and whether the sensing device is moved. The wireless transceiver is used for receiving and transmitting signals sent by thevibration / displacement / inclination sensor through the microcontroller. The invention can be used for monitoring the breakage of the glass, the vibration of the building equipment such as doors, window and the like and the movement of the sensing device, and the functions of the invention are broadened.

The invention belongs to the technical field of civil engineering, and discloses a civil engineering shock absorbing device and a control method thereof. The civil engineering shock absorbing device includes: a signal acquisition module, a communication module, a central control module, a data analysis module, and a shock absorbing control module , a comprehensive evaluation module, an abnormal early warning module, a power supply module, a data storage module, and a display module. The shock absorbing device for civil engineering provided by the present invention has a simple structure, does not need to add rigidity to the main building structure, effectively solves the problem that the initial stiffness of the damper is difficult to match the lateral stiffness of the structure, and reduces the number of shear walls, beams, and columns The number of reinforcements and the cross-sectional size of the components can effectively save costs, and the invention is not only suitable for the seismic and windproof of new civil structures, but also has a good effect on the seismic reinforcement and post-earthquake maintenance of existing buildings after the earthquake, and it is automated The degree is high, the workload of personnel is reduced, and the application can be promoted.