4results about How to "Improve high precision" patented technology

A method, system and device for monitoring downhole flow and moisture content specifically comprises the steps that S1, DAS signals are collected, and the obtained DAS signals are preprocessed; s2, signal features in the DAS are extracted, and time domain features, frequency domain features, time-frequency domain features and time sequence features in the DAS are extracted; s3, the DAS signal features extracted in the S2 are fused, and comprehensive feature representation is generated; and S4, identifying the DAS signal features, training an AI model to obtain a flow water content identification model, and identifying the comprehensive feature representation through the flow water content identification model to obtain flow and water content identification. The method has the advantages that four DAS signal feature extraction methods are provided, and time-frequency feature extraction, frequency-frequency feature extraction, time-frequency feature extraction and time sequence feature extraction are achieved respectively; designing a feature fusion algorithm, and realizing feature-based event discrimination capability enhancement; a deep learning algorithm implementation method is provided, and a high-precision feature recognition technology is improved.

The invention belongs to the technical field of water level gauges, and particularly relates to a high-precision water level gauge which comprises a liquid level gauge body, a bottom communicating vessel is fixedly arranged on the liquid level gauge body, and a top communicating vessel is fixedly arranged at the end, away from the bottom communicating vessel, of the liquid level gauge body. A top sealing ring and a bottom sealing ring are sequentially installed on the inner side of the liquid level meter body, evacuation pipes are fixedly arranged on the inner side of the top sealing ring and the inner side of the bottom sealing ring, a sealing connecting base is fixedly arranged at the bottom of the bottom communicating vessel, and a motor is fixedly arranged on the outer side of the sealing connecting base. The output end of the motor extends to the inner side of the sealing connecting base and is fixedly provided with a center rod. According to the liquid level gauge, water flow enters the inner side of the defoaming device through rotation of the defoaming device, due to the fact that one end of the opening of the defoaming device is large, and the other end of the opening of the defoaming device is small, bubbles of liquid in the liquid level gauge body are gathered and reduced under the action of stress, the bubbles in the liquid are eliminated, and the high precision of the liquid level gauge is improved.

This utility model provides a high-efficiency automatic assembly line for automotive main reducers, relating to the field of automotive technology. The high-efficiency automatic assembly line for automotive main reducers includes a connecting block one and a support frame. A vent plate is fixedly connected to one side of the connecting block one, an air pump is fixedly connected to one side of the vent plate, and a nozzle is fixedly connected to one side of the vent plate. A cleaning shaft is slidably connected to one side of the support frame, a magnetic suction plate is fixedly connected to one side of the support frame, and a second connecting block is fixedly connected to one side of the support frame. A lead screw is slidably connected to one side of the second connecting block, a moving block is threaded to one side of the lead screw, and a scraper is fixedly connected to one side of the moving block. This utility model, through the arrangement of the nozzle, cleaning shaft, scraper, and magnetic suction plate, achieves a cleaning effect, reduces the frequency of manual maintenance, improves the automation level and long-term operational stability of the assembly line, and enhances the high-precision and high-efficiency production of main reducers.

The invention discloses a frequency-regulated radio frequency amplifier, which relates to the technical field of electronic equipment, and comprises: an input terminal, which is installed at a side shell of a device body. Through the cooperation of a photon frequency regulation component, a coupling regulation component and an input matching regulation component, in the overall structure, precise electric field regulation is applied to a micro-ring resonator through a variable capacitor array structure, so that a small step adjustment of the resonant frequency of the micro-ring resonator can be achieved, thereby performing high-precision frequency screening and regulation on an optical signal, so that the frequency regulation accuracy can be improved by several times or even higher, effectively solving the problem that a traditional radio frequency amplifier has a large regulation step and is difficult to achieve high-precision frequency regulation, and at the same time can shorten the frequency switching time to a fraction of that of a traditional radio frequency amplifier or even lower, greatly reducing the risk of missing the correct time to receive or send a signal, effectively avoiding operation delays, and ensuring efficient and stable operation.