SAE ARP 427A-2001
压力比仪器
Pressure Ratio Instruments
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- 标准号
- SAE ARP 427A-2001
- 发布日期
- 2001年07月01日
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- V45
- 国际标准分类号
- 49.090
- 发布单位
- US-SAE
- 引用标准
- NACA 1235
- 被代替标准
- SAE ARP 427-1958
- 适用范围
- To recommend requirements for electrical Pressure Ratio Indicating Instruments for use in aircraft, the operation of which may subject the instruments to the environmental conditions specified in Para. 3.3. This recommended practice is to be considered as being currently applicable and necessarily subject to revision from time to time due to rapid development in the aircraft industry. This Aeronautical Recommended Practice covers two types of two unit Pressure Ratio Instruments each of which consist of a Transducer and an Indicator. The Transducer computes the ratio of two pressures and converts this ratio to a synchro electrical signal which is transmitted to the Indicator. TYPE I - All material in this document applies to this classification only. TYPE II - Additional material for this classification will be added to superseding issues as the state of the art permits.