3results about How to "Reduce output error" patented technology

The invention relates to the field of intelligent operation and maintenance of power equipment, in particular to a transformer maintenance-free respirator control method integrating temperature, humidity and pressure monitoring and electric heating regeneration and a storage medium. The method comprises the following steps: firstly, deploying a sensor in the respirator, collecting humidity and internal temperature and pressure data of a drying agent, and obtaining accurate data after moving average filtering and temperature compensation; and the control module is combined with the data, a humidity threshold value dynamically adjusted along with the load rate of the transformer and a regeneration period to trigger the regeneration system to start. During regeneration, the electric heating piece heats the drying agent, the fan adjusts the rotating speed according to the real-time temperature and humidity to discharge steam, meanwhile, the moisture absorption capacity recovery rate is corrected by combining aging of the drying agent, and starting and stopping or temperature adjusting delay are conducted according to the standard condition. The process data is uploaded to the operation and maintenance cloud platform through the LoRa module encrypted by AES-128, and the platform analyzes the trend through weighted linear regression and gives an alarm; and operation and maintenance personnel optimize parameters according to the parameters and regurgitate a judgment link. Related programs are stored in the storage medium and can be executed by the processor to achieve the method, and support is provided for maintenance-free of the respirator.

This invention provides a triaxial force sensor, comprising an elastic body and a strain gauge assembly. The elastic body includes connecting cylinders at both ends and a strain force detection area in the middle. The strain force detection area in the middle of the elastic body is configured as a weak connection structure, which includes at least four strain beams. The area enclosed by the strain beams is arranged in a square shape on the projection plane. The strain gauge assembly is attached to each strain beam. This invention can accurately measure forces in three mutually perpendicular directions and has the advantages of simple structure and fast response speed.

This utility model provides a liquid feed mixing and weighing device, comprising a raised platform erected on the ground, with an opening on the platform. A mixing vessel is installed within the opening, and the lower part of the mixing vessel extends downward from the opening. A weighing transition device is connected to the bottom of the mixing vessel via a pipeline, and the output of the weighing transition device is connected to a downstream packaging mechanism via a pipeline. This utility model is rationally designed. By using a weighing sensor on the mixing vessel to weigh the amount of liquid feed of different components and for subsequent mixing, it avoids errors in the overall proportions caused by the cumulative weight errors on the component packaging during mass production. Simultaneously, the weighing transition device weighs the mixed liquid output from the mixing vessel, reducing output errors.