热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2015年
7期
72-77
,共6页
韦宣%郭俊文%史亚丽%刘德%瞿丽莉
韋宣%郭俊文%史亞麗%劉德%瞿麗莉
위선%곽준문%사아려%류덕%구려리
振动标准套组%正弦逼近法%灵敏度幅值%相位校准%测量不确定度%评定
振動標準套組%正絃逼近法%靈敏度幅值%相位校準%測量不確定度%評定
진동표준투조%정현핍근법%령민도폭치%상위교준%측량불학정도%평정
standard accelerometer with amplifier%sine-approximation method%sensitivity amplitude%phase calibration%measurement uncertainty%detection
根据 ISO 16063-11—1999的激光干涉法振动绝对校准，采用改进的 Mach-Zehnder 正弦逼近法振动标准装置对振动标准套组进行校准。在参考条件下和通频带范围内，对振动标准套组灵敏度幅值和相位校准的测量不确定度进行评定，引入相位测量对发电机组轴系的状态监测和诊断非常有效。实际应用表明，该评定方法对振动量值检定和校准结果的测量不确定度评定具有指导作用。
根據 ISO 16063-11—1999的激光榦涉法振動絕對校準，採用改進的 Mach-Zehnder 正絃逼近法振動標準裝置對振動標準套組進行校準。在參攷條件下和通頻帶範圍內，對振動標準套組靈敏度幅值和相位校準的測量不確定度進行評定，引入相位測量對髮電機組軸繫的狀態鑑測和診斷非常有效。實際應用錶明，該評定方法對振動量值檢定和校準結果的測量不確定度評定具有指導作用。
근거 ISO 16063-11—1999적격광간섭법진동절대교준，채용개진적 Mach-Zehnder 정현핍근법진동표준장치대진동표준투조진행교준。재삼고조건하화통빈대범위내，대진동표준투조령민도폭치화상위교준적측량불학정도진행평정，인입상위측량대발전궤조축계적상태감측화진단비상유효。실제응용표명，해평정방법대진동량치검정화교준결과적측량불학정도평정구유지도작용。
According to absolute vibration calibration of laser interferometry in ISO 1 6063-1 1—1 999,the standard accelerometer with amplifier was calibrated by the modified Mach-Zehnder Sine-approximation method based vibration standard device.Under the reference condition and within the complete frequency range,the measurement uncertainty of standard accelerometer with amplifier of amplitude and phase sensi-tivity calibration was evaluated.The introduction of phase measurement of turbine shafting status monito-ring and diagnosis is very effective.The application results show the this evaluation method has great guid-ance effect on vibration quantity verification and calibration of measurement uncertainty evaluation.
