航空学报 > 1990, Vol. 11 Issue (8): 375-378

应变天平静校系统技术指标的讨论

欧阳万   

  1. 北京航空航天大学
  • 收稿日期:1989-10-18 修回日期:1990-03-01 出版日期:1990-08-25 发布日期:1990-08-25

DISCUSSION ON THE SPECIFICATION OF CALIBRATION SYSTEM FOR A STRAIN GAGE BALANCE

Ouyang Wan   

  1. Beijing University of Aeronautics and Astronautics
  • Received:1989-10-18 Revised:1990-03-01 Online:1990-08-25 Published:1990-08-25

摘要: <正> 1.引言 随着自动加载与自补偿型静校系统在我国研制成功并投入使用,对静校设备的研制已引起国内各风洞实验室的重视。特别是大型风洞投入使用和进一步开发建设,将促使对天平静校系统的研究。静校系统的改进是提高风洞实验水平的必要条件。但静校系统及其子系统的技术指标在已有的文献中很难找到。探讨此问题显然对新系统的设计和已有系统的分析具有重要意义。

关键词: 天平, 校准, 误差分析

Abstract: A calibration system with an accuracy of 2 × 10-4 for a strain gage balances is presented. The error distribution and the error source of subsystems are discussed. According to the analysis, the specification of subsystems for a strain gage balances is presented. This paper would be very useful for designing a new calibration system and analysing the existing ones.

Key words: balance, calculation, error analysis