2results about How to "Quick dip" patented technology

This invention discloses a gas-liquid detection device, method, and system based on the near-field load characteristics of an ultrasonic transducer, belonging to the field of underwater state monitoring and ultrasonic sensing technology. The device includes: an ultrasonic transducer that emits ultrasonic vibrations and receives near-field electroacoustic response signals; an excitation circuit that applies a pulse excitation signal to the ultrasonic transducer; an acquisition circuit that acquires near-field free oscillation signals at both ends of the ultrasonic transducer within a preset time window after the excitation ends; and a signal processing module that extracts time-domain feature parameters from the acquired near-field free oscillation signals, compares the extracted feature parameters with a preset threshold, and outputs a state indicator indicating whether the ultrasonic transducer is currently in a gaseous or liquid medium. The time-domain feature parameters are used to characterize the amplitude or attenuation characteristics of the near-field free oscillation signal. This invention requires only a single ultrasonic transducer, eliminating the need for a reflective surface or dual transducers, and has advantages such as simple structure, strong anti-interference capability, fast response speed, low power consumption, and high detection accuracy.

This invention discloses a pre-dyeing treatment system and process for uniformly coloring dark-colored fabrics, specifically relating to the field of fabric production technology. The system includes a workbench with a desizing tank, a scouring tank, and a bleaching tank installed sequentially from left to right on its surface. Fabric passes through these tanks in sequence. The invention utilizes a mixing mechanism to drive the desizing solution to mix and flow within the desizing tank. With the assistance of a beating mechanism, the fabric is continuously patted during rotation, accelerating the removal of residual sizing solution. A pneumatic mechanism delivers gas evenly to the desizing tank via a gas supply component, forcing the desizing solution to agitate and mix. This allows the desizing solution to penetrate the fabric under the pressure of the gas, resulting in more stable contact between the desizing solution and the fabric. The pneumatic mechanism achieves multiple contact methods between the fabric and the desizing solution, effectively improving desizing efficiency.