弹道学报
彈道學報
탄도학보
JOURNAL OF BALLISTICS
2014年
2期
86-89,105
,共5页
狄长安%孟祥明%边鹏%孔德仁
狄長安%孟祥明%邊鵬%孔德仁
적장안%맹상명%변붕%공덕인
压力传感器%准静态校准%静态校准%灵敏度
壓力傳感器%準靜態校準%靜態校準%靈敏度
압력전감기%준정태교준%정태교준%령민도
pressure sensor%quasi-static calibration%static calibration%sensitivity
针对用于膛压测量的高压压电传感器静态与准静态工作曲线之间的差异展开了定量的分析,分别利用静态压力标定机及落锤液压动标装置对Kistler6215传感器进行了静态及准静态校准,采用最小二乘法分别建立了静态校准和准静态校准的工作模型;通过F检验法检验了2种工作模型方差的显著性,并对两条回归直线斜率的置信区间进行了分析,同时研究了2组标定数据的点灵敏度的变化情况。研究结果表明,在0.05置信水平下,两条回归直线的斜率不同,与高压压电传感器静态校准相比,实施准静态校准更实用。
針對用于膛壓測量的高壓壓電傳感器靜態與準靜態工作麯線之間的差異展開瞭定量的分析,分彆利用靜態壓力標定機及落錘液壓動標裝置對Kistler6215傳感器進行瞭靜態及準靜態校準,採用最小二乘法分彆建立瞭靜態校準和準靜態校準的工作模型;通過F檢驗法檢驗瞭2種工作模型方差的顯著性,併對兩條迴歸直線斜率的置信區間進行瞭分析,同時研究瞭2組標定數據的點靈敏度的變化情況。研究結果錶明,在0.05置信水平下,兩條迴歸直線的斜率不同,與高壓壓電傳感器靜態校準相比,實施準靜態校準更實用。
침대용우당압측량적고압압전전감기정태여준정태공작곡선지간적차이전개료정량적분석,분별이용정태압력표정궤급락추액압동표장치대Kistler6215전감기진행료정태급준정태교준,채용최소이승법분별건립료정태교준화준정태교준적공작모형;통과F검험법검험료2충공작모형방차적현저성,병대량조회귀직선사솔적치신구간진행료분석,동시연구료2조표정수거적점령민도적변화정황。연구결과표명,재0.05치신수평하,량조회귀직선적사솔불동,여고압압전전감기정태교준상비,실시준정태교준경실용。
Aiming at the differences between the static and quasi-static sensitivities of the high-pressure piezoelectric sensors in the chamber pressure measurement,the quantitative analysis was accomplished.The static and quasi-static calibrations to sensors (kistler 6215 )were made respectively by static pressure calibration device and hydraulic dynamics calibration device with drop hammer.The models about the two calibration methods were respectively established by least square method firstly.Then,the variance significance of two work models were analyzed by F test,and the confidence intervals of two regression lines were analyzed,and the change law of point sensitivity in two groups of calibration data were studied as well.The results show that the slopes of two regression lines are not the same at a confidence level of 0.05,and the quasi-static calibrations to sensors(6215)is more practical than static calibrations.