2results about How to "Flexible control and operation" patented technology

The invention relates to the technical field of current sensors, in particular to a double-air-gap high-precision high-range current sensor which comprises two Hall chips and an MCU controller, the two Hall chips are used for outputting magnetic field signals into two paths of electric signals, the MCU controller is used for collecting and processing output signals of the Hall chips, and the MCU controller is used for controlling the Hall chips to output the output signals. Averaging the output signals of the two paths of Hall chips; and by adopting the design of averaging output of the two Hall chips, the accuracy and the stability of measurement can be improved. By averaging the output signals of the two Hall chips, measurement errors caused by factors such as errors and temperature drift of the chips can be reduced; the double-air-gap high-precision high-range current sensor provided by the invention can maintain good performance when being influenced by external temperature and humidity, and solves the technical problem that the accuracy and stability of a double-air-gap current sensor in the prior art become poor due to the fact that the double-air-gap current sensor is easily influenced by external temperature and humidity.

The utility model provides a kind of conveying production line of powdery sludge, conveying production line input end is connected with first scraper, conveying production line includes second scraper conveyor and screw conveying system, the input end and output end of second scraper conveyor are connected with first scraper and screw conveying system respectively, and there is manual gate valve between the output end of second scraper conveyor and screw conveying system;Screw conveying system includes several in space head-to-tail connection screw conveyer, the discharge port of last end screw conveyer in conveying direction is connected with bin top, bin two sides are fixed on ground by elevating support, bin bottom is equipped with discharge valve, and bin outside wall is equipped with vibration motor;Each screw conveyer includes conveying pipeline, screw blade and driving motor, and the one end of screw blade in conveying pipeline is connected with driving motor.The utility model effectively solves material adhesion, caking problem, and improves conveying efficiency.