摘要:
An artificial heart blood pump including a driving motor which can be contained within the human body and which performs pumping action when supplied from an electric power source from outside of the human body. The pump includes left and right ventricles defined by elastomeric films fixed inside a pump body near each side. Each ventricle has an inlet and an outlet provided with respective check valves. Within the pump body generally between the elastomeric films is a movable body having a cylindrical case with a bidirectional driving motor built in. The movable body rolls from side to side during operation to alternately press against the elastomeric films and discharge blood alternately from the ventricles. To cause the movable body to roll from side to side, the movable body has an end portion rotatably connected to each end of the cylindrical case, and the end portions each have a groove slidably engaging a side guide rail on inner surfaces of the pump body so as to prevent rotation of the end portions within and relative to the pump body. Power transmitting means, preferably in the form of a pair of planetary gear trains, connects a motor shaft to one of the end portions so as to provide bidirectional relative rotation between the cylindrical case and the one end portion such that the cylindrical case rotates within the pump body. To convert this rotation to side-to-side rolling, a semi-circumferential row of gear teeth on said cylindrical case engages a toothed rack on an inner surface of the pump body.
摘要:
An equipment and method to classify semiconductor packages diced on a substrate into defective and non-defective semiconductor packages includes a loading preparation table to receive a plurality of semiconductor packages to be inspected, a first inspection unit to inspect and classify the semiconductor packages received at the loading preparation table into normal semiconductor packages and defective semiconductor packages, a temporary loading table to temporarily receive at least a portion of the normal semiconductor packages, a first loading picker to transfer the defective semiconductor packages from the loading preparation table to a defective package loading tray and to transfer the normal semiconductor packages from the temporary loading table to the loading preparation table, and a second loading picker to transfer the normal semiconductor packages from the loading preparation table to a normal package loading tray.
摘要:
Disclosed herein is a plate type capacitive sensor for five-dimensional displacement measurement that is capable of simultaneously measuring five-dimensional movement of an object, which includes the horizontal movement, the vertical movement, and the tilt of the object. The plate type capacitive sensor for five-dimensional displacement measurement comprises a plate located adjacent to an object to be measured, and a ground part, a first guard part, a displacement measuring sensor, and a second guard part, which are stacked on the plate in consecutive order. The plate may be made by machining or made of a printed circuit board (PCB).
摘要:
A clamping apparatus capable of clamping various semiconductor substrates is provided. The clamping apparatus includes includes a main body, and a support plate partially coupled to the main body. The support plate is movable vertically. In addition, the clamping apparatus further includes a fixed gripper coupled and fixed onto the main body and a movable gripper disposed on the main body. The movable gripper is movable horizontally.
摘要:
Disclosed herein is a muscular motion simulating system that is capable of simulating a force-displacement characteristic of an ideal muscle model through the use of a large displacement magnetic actuating unit supported by means of linear springs. The muscular motion simulating system comprises a base plate mounted to a virtual muscle part in a dummy in the longitudinal direction thereof, a moving body connected to a wire withdrawn from the virtual muscle part such that the moving body can be slid on the base plate when the position of the wire is changed due to an external impact so as to output the moved distance of the moving body, a load cell connected to the lower part of the moving body for measuring a load depending upon the moved distance of the moving body, a fixing plate fixed to the lower end of the base plate while being protruded outwardly, a load-adjusting unit disposed between the load cell and the fixing plate for outputting positional information to increase or decrease the load applied to the load cell by means of a biasing force of the magnetic field, and a control unit for controlling the actuation of the load-adjusting unit such that load applied to the load cell corresponds to the muscle strength according to the moved distance of the moving body with reference to the positional information inputted from the load-adjusting unit.
摘要:
A stacked package and method of manufacture are provided. The stacked package may include a first semiconductor package, a second semiconductor package, plugs and spacers. The second semiconductor package may be stacked on the first semiconductor package. The plugs may electrically connect the first semiconductor to the second semiconductor package. The spacer may be interposed between the first semiconductor package and the second semiconductor package to form a gap between the first semiconductor package and the second semiconductor package, thereby preventing an electrical short between the plugs.
摘要:
A clamping apparatus capable of clamping various semiconductor substrates is provided. The clamping apparatus includes includes a main body, and a support plate partially coupled to the main body. The support plate is movable vertically. In addition, the clamping apparatus further includes a fixed gripper coupled and fixed onto the main body and a movable gripper disposed on the main body. The movable gripper is movable horizontally.
摘要:
Disclosed herein is a plate type capacitive sensor for five-dimensional displacement measurement that is capable of simultaneously measuring five-dimensional movement of an object, which includes the horizontal movement, the vertical movement, and the tilt of the object. The plate type capacitive sensor for five-dimensional displacement measurement comprises a plate located adjacent to an object to be measured, and a ground part, a first guard part, a displacement measuring sensor, and a second guard part, which are stacked on the plate in consecutive order. The plate may be made by machining or made of a printed circuit board (PCB).
摘要:
A capacitive sensor for simultaneously sensing radial movement and axial movement of a rotary body. The capacitive sensor includes a sensor housing having a pocket disposed in a radial direction and provided with one side surface opened in an axial direction; a plurality of sensor electrodes inserted into the pocket; and an insulator inserted into the pocket to fill a space between the sensor housing and the sensor electrodes. Each of the sensor electrodes includes a radial sensor plane and an axial sensor plane, and the capacitive sensor further includes a guard formed between the sensor electrodes and the sensor housing.