Abstract: An electromagnetic immunity test system includes a data acquisition and control device, a linear module, an electromagnetic disturbance simulator, and an upper computer. The data acquisition and control device is in a data connection to the linear module, the electromagnetic disturbance simulator, and the upper computer. The linear module includes a grating ruler; and the linear module is disposed on the numerical control machine tool to measure location data of the sliding table of the numerical control machine tool and transmit the location data to the data acquisition and control device. The electromagnetic disturbance simulator is configured to generate and transmit an electromagnetic signal to the numerical control system. The data acquisition and control device is configured to read the location data in real time and transfer the real-time location data to the upper computer.

Abstract: A welding torch includes a torch barrel to which a tip body is attached, and an external cylinder. The torch barrel has outer and inner barrel cylinders. An outer peripheral surface of the inner barrel cylinder is provided with coolant supply and recovery channels. The inner barrel cylinder has an inner-cylinder exposure section. A base end of an outer peripheral surface of the inner-cylinder exposure section is provided with supply and recovery openings. An axial distal end of the inner-cylinder exposure section is provided with a connection section that is connected to the tip body such that the tip body covers an outer periphery of the inner-cylinder exposure section. At least the connection section and the supply and recovery openings are disposed within the external cylinder. A seal section hermetically seals between the external cylinder and the tip body and between the external cylinder and the outer barrel cylinder.

Abstract: An electromagnetic immunity test system includes a data acquisition and control device, a linear module, an electromagnetic disturbance simulator, and an upper computer. The data acquisition and control device is in a data connection to the linear module, the electromagnetic disturbance simulator, and the upper computer. The linear module includes a grating ruler; and the linear module is disposed on the numerical control machine tool to measure location data of the sliding table of the numerical control machine tool and transmit the location data to the data acquisition and control device. The electromagnetic disturbance simulator is configured to generate and transmit an electromagnetic signal to the numerical control system. The data acquisition and control device is configured to read the location data in real time and transfer the real-time location data to the upper computer.

Abstract: The utility model discloses a light-emitting rotary knob. The light-emitting rotary knob comprises a rotary knob body, a connecting base and a PCB, wherein a plurality of LED light-emitting bodies are mounted on the PCB, a connecting concave hole is formed in one end of the connecting base, the rotary knob body is provided with a concave cavity and connected with the connecting base in a sleeving mode through the other end of the connecting base by means of the concave cavity, the PCB is mounted on the connecting base, and the multiple LED light-emitting bodies guide out light through the rotary knob body.

Abstract: Multiple methods and corresponding apparatuses for efficient and reliable defect diagnosis in components of mechanical systems, are described. According to one aspect, multi-scale enveloping-order spectrogram is used to diagnose, or detect, defects in a moving component of a mechanical system. According to another aspect, defect identification and diagnosis in a motor is performed based on spectral characteristics of motor current envelope. According to yet another aspect, a logic rule model, employing classification of features associated with single- or multi-sensor data, is employed for diagnosis of defects in components of mechanical systems.

Abstract: The present invention discloses a flushing toilet cover.

Abstract: The utility model discloses a light-emitting rotary knob. The light-emitting rotary knob comprises a rotary knob body, a connecting base and a PCB, wherein a plurality of LED light-emitting bodies are mounted on the PCB, a connecting concave hole is formed in one end of the connecting base, the rotary knob body is provided with a concave cavity and connected with the connecting base in a sleeving mode through the other end of the connecting base by means of the concave cavity, the PCB is mounted on the connecting base, and the multiple LED light-emitting bodies guide out light through the rotary knob body.

Abstract: The present invention discloses a flushing toilet cover.

Abstract: Multiple methods and corresponding apparatuses for efficient and reliable defect diagnosis in components of mechanical systems, are described. According to one aspect, multi-scale enveloping-order spectrogram is used to diagnose, or detect, defects in a moving component of a mechanical system. According to another aspect, defect identification and diagnosis in a motor is performed based on spectral characteristics of motor current envelope. According to yet another aspect, a logic rule model, employing classification of features associated with single- or multi-sensor data, is employed for diagnosis of defects in components of mechanical systems.

Abstract: A method of testing and monitoring operational integrity of a drilling rig is described. The method includes operating the drilling rig in a non-drilling mode at a sequence of different phases including an acceleration phase, a constant speed phase, and a decelerating phase, collecting sensor data associated with one or more components of the drilling rig while the drilling is operated in the non-drilling mode at the sequence of different phases, and analyzing the collected sensor data to determine the operational integrity of the drilling rig. The analyzed data, together with previously stored historical data is used to estimate the life expectancy of the rig and monitor, plan, control, or report maintenance activity for the drilling rig, top drive, or any other system.