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公开(公告)号:US5728952A
公开(公告)日:1998-03-17
申请号:US525466
申请日:1995-09-08
申请人: Hironobu Yao , Hiroyuki Yoshimura , Masato Takahashi , Michihiko Tsuruoka , Iwao Matsumoto , Masakazu Kawakami , Keita Okawa
发明人: Hironobu Yao , Hiroyuki Yoshimura , Masato Takahashi , Michihiko Tsuruoka , Iwao Matsumoto , Masakazu Kawakami , Keita Okawa
CPC分类号: G01F1/8418 , G01F1/8427 , G01F1/8431 , G01F1/8436 , G01F1/849 , G01N9/002
摘要: The precision of phase difference obtained by a phase difference calculating unit is improved by correction through outputs of a frequency ratio calculating unit and a temperature calculating unit considering that the phase or time difference of each output signal of a vibration sensor indicating the mass flow or density of a fluid is a function of the temperature and axial force on a measurement pipe, or that the axial force is a function of the ratio between two resonant frequencies.
摘要翻译: 考虑到表示质量流量或密度的振动传感器的每个输出信号的相位或时间差,通过频率比计算单元和温度计算单元的输出进行校正来提高通过相位差计算单元获得的相位差的精度 流体是测量管上的温度和轴向力的函数,或轴向力是两个谐振频率之间的比值的函数。