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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (7): 216-226.doi: 10.7527/S1000-6893.2023.28900

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Design of a force sensor for boom nozzle

Rongwu SHI(), Xinyu BAI, Yifeng TAN, Zhe ZHAO   

  1. AVIC Zhonghang Electronic Measuring Instruments Co. Ltd. ,Xi’an 710119,China
  • Received:2023-04-21 Revised:2023-07-10 Accepted:2023-08-28 Online:2024-04-15 Published:2023-09-21
  • Contact: Rongwu SHI E-mail:shirw@avic.com

Abstract:

The refueling device is one of the important development directions of the air tanker. The force sensor of the boom nozzle is important device for the automatic load alleviation system to eliminate the boom load and realize the closed-loop control. However, at present, there is no such device in China to meet the actual need. The overall design and research of the force sensor for the boom nozzle is carried out to solve the problems of the isolation of the circuit from the fuel channels, electromagnetic shielding, and the crosstalk of pitch and roll measurement. The elastic body is designed as a tubular structure, and the reasonable strain-sensitive position is determined. Under the premise of small outline dimensions, consistence of the inner diameter of the elastic body with that of the telescoping boom and the nozzle is achieved to ensure the optimal design of the refueling system structure and improve the measurement accuracy. Through the design, analysis and test verification of the output sensitivity etc., the safe, reliable and accurate measurement of the boom load is realized, which can provide support for the development of the refueling device.

Key words: force sensor, automatic load alleviation system, boom load, crosstalk, elastic body, tubular structure

CLC Number: