摘要:
A controller controls the rotational speed of an induction motor, thereby controlling a spindle connected to the induction motor. Although an encoder for detecting the position of the spindle is mounted on the spindle, a speed detector is not attached to the induction motor. The speed of the induction motor is estimated from a spindle speed obtained by the encoder, and an excitation frequency command for the induction motor is determined based on the estimated speed.
摘要:
The controller controls a spindle connected to an induction motor via a belt by controlling the rotational velocity of the induction motor. The spindle has an encoder attached thereto for detecting the position of the spindle, but the induction motor does not have a velocity detector attached thereto. The velocity of the induction motor is estimated from the spindle velocity obtained from output of the encoder, and slip of the belt is detected based on the estimated velocity of the induction motor. When occurrence of slip of the belt is detected, the estimated velocity of the induction motor will not be used for the control of the induction motor.
摘要:
The controller controls a spindle connected to an induction motor via a belt by controlling the rotational velocity of the induction motor. The spindle has an encoder attached thereto for detecting the position of the spindle, but the induction motor does not have a velocity detector attached thereto. The velocity of the induction motor is estimated from the spindle velocity obtained from output of the encoder, and slip of the belt is detected based on the estimated velocity of the induction motor. When occurrence of slip of the belt is detected, the estimated velocity of the induction motor will not be used for the control of the induction motor.
摘要:
A motor control apparatus for computing or outputting motor load information, comprises: a storage unit which stores a function or table obtained in advance based on parameters used for the computation of the load information and on an actually measured value of a motor output or motor torque; and a load meter computing unit which computes the load information from the function or table stored in the storage unit by using the parameters used for the computation of the load information. With the above configuration, the load meter is computed in such a manner as to accurately indicate the load condition of a motor in real time over the entire speed range of the motor including the nonlinear control region of the motor, and the motor is controlled using the thus computed value or the computed value is displayed on a display unit.
摘要:
A method for performing video display control within a video display system includes: dynamically utilizing two of a plurality of buffers as on-screen buffers for three-dimensional (3D) frames, wherein the plurality of buffers is positioned within the video display system; and during utilizing any of the two of the plurality of buffers as an on-screen buffer, dynamically utilizing at least one other buffer of the plurality of buffers as at least one off-screen buffer for at least one 3D frame. An associated video processing circuit and an associated video display system are also provided. In particular, the video processing circuit is positioned within the video display system, where the video processing circuit operates according to the method.
摘要:
A hydraulic driver of a magnetic resonance elastography (MRE) system is provided. The hydraulic driver is adapted to be connected to at least a passive actuator for contacting with a subject. The hydraulic driver includes a pump, a hydraulic piston-cylinder unit operatively coupled to the pump, and a tube assembly. The tube assembly includes a proximal end in fluid communication with the hydraulic piston-cylinder unit and a distal end in fluid communication with the passive actuator. The passive actuator oscillates in response to hydraulic energy generated in a fluid in the hydraulic driver as the pump drives the piston forward and backward in the cylinder of the hydraulic piston-cylinder unit.
摘要:
Systems and methods which employ a high temperature superconductor (HTS) receiver coil configuration for MRI analysis of small volume subjects, such as infants, are shown. Embodiments provide a HTS tape RF phase array receiver coil implementation. The foregoing HTS tape receiver coil implementation may be provided in a Helmholtz coil configuration. With such a Helmholtz coil configuration, circuitry is preferably provided to provide tuning, matching, and/or decoupling with respect to the HTS receiver coils. Embodiments implement a cryostat configuration to maintain one or more HTS receiver coils at a desired operating temperature (e.g., ≦77° K) while providing a safe environment for a subject (e.g., infant) being imaged.
摘要:
A device for at least one of diagnosis and treatment of binocular vision disorders is disclosed. The device comprises a portable, wearable viewing apparatus that includes a left eye electronic display and a right eye electronic display, a dual data channel input, wherein each data channel corresponds to a respective one of the left eye and right eye electronic displays, a left eye adjustable optic structure adjusting a view of the left eye electronic display, and a right eye adjustable optic structure adjusting a view of the right eye electronic display. The device also includes a controller in communication with the dual data channel input that renders a first image at the left eye electronic display and a second image at the right eye electronic display simultaneously, in which the first and second images are different, and a memory in communication with the controller configured to store at least one of a diagnosis image pattern and a treatment image pattern for said binocular vision disorders for display by the viewing apparatus.
摘要:
An Internet radio infrastructure comprising at least a media server and one or more wireless portable internet radio devices and/or one or more media center devices is proposed. The internet radio infrastructure is configured for broadcasting, archiving, and playing internet radio streams in a manner that would not only provide increased flexibility and options for the users as well as simplified management for the internet radio infrastructure implementer, but would also save time and resources in the implementation and maintenance of an internet radio system.
摘要:
A hydraulic driver of a magnetic resonance elastography (MRE) system is provided. The hydraulic driver is adapted to be connected to at least a passive actuator for contacting with a subject. The hydraulic driver includes a pump, a hydraulic piston-cylinder unit operatively coupled to the pump, and a tube assembly. The tube assembly includes a proximal end in fluid communication with the hydraulic piston-cylinder unit and a distal end in fluid communication with the passive actuator. The passive actuator oscillates in response to hydraulic energy generated in a fluid in the hydraulic driver as the pump drives the piston forward and backward in the cylinder of the hydraulic piston-cylinder unit.