Abstract: An ultrasonic spray coating system includes a piezoelectric transducer, a spray-forming head and a liquid supply applicator. The spray-forming head has an air-entrainment mechanism. The air-entrainment mechanism has an air-stream channel that is formed inside a main body and a bottom body of the spray-forming head for connection with a high-pressure air source, and an air vent formed in a bottom surface of the bottom body and communicates with the air-stream channel. A length of the air vent in a horizontal direction is greater than that of the air-stream channel. The liquid supply applicator has a discharge orifice, and a control component for controlling the size of the discharge orifice.

Abstract: A ball holding mechanism comprises a base with a central axis disposed from bottom to top with an urging block, an elastic element, and a stopping block. The surrounding of the base is pivotally provided with several holding arms, each of which has a transmission end and a holding end. The transmission end urges against the bottom surface of the urging block. By using the lever principle, the urging blocks are controlled by an adjusting mechanism to make a downward displacement along the central axis to push the transmission ends so that the holding ends perform a holding action while the elastic element keeps flexibility after the ball is held. A pivoting base can rotate in the horizontal and longitudinal direction on the holding arm through two horizontal and longitudinal shafts pivotally mounted on the holding end.

Abstract: A transmission component with a functional structure has a linear or crossed shaft body, a transmission structure integrally formed on the shaft body and extending in a radial direction; a sensor matching structure and a shaft matching structure formed on the shaft body so that a sensor and a bearing may be conveniently assembled on the shaft body and the size of the transmission component can be miniaturized, and a reinforcing rod which may be inserted into the shaft body in an axial direction to enhance the structure intensity of the shaft body.

Abstract: A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate four pre-processed signals that are paired and sent to the low swing pre-amplifier. The outputs of the low-swing pre-amplifier are then over-sampled by the sampling and decision circuit. Multi-phase clocks are used to control the over-sampling in the sampling and decision circuit. A logic circuit then determines if the state of the input signal based on multiple samples.

Abstract: A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate four pre-processed signals that are paired and sent to the low swing pre-amplifier. The outputs of the low-swing pre-amplifier are then over-sampled by the sampling and decision circuit. Multi-phase clocks are used to control the over-sampling in the sampling and decision circuit. A logic circuit then determines if the state of the input signal based on multiple samples.