[1]王媛文,董大伟,闫 兵.传感器工作间隙对内燃机瞬时转速测量的影响机理及规律[J].内燃机学报,2014,(05):466-473.
　WANG Yuan-wen,DONG Da-wei,YAN Bing.Influence Mechanism and Law of Sensor Working Clearance on Instantaneous Engine Speed Measurements[J].,2014,(05):466-473.
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传感器工作间隙对内燃机瞬时转速测量的影响机理及规律
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《内燃机学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2014年05
页码:
466-473
栏目:
出版日期:
2014-09-25

文章信息/Info

Title:
Influence Mechanism and Law of Sensor Working Clearance on Instantaneous Engine Speed Measurements
作者:
王媛文; 董大伟; 闫 兵
西南交通大学 机械工程学院
Author(s):
WANG Yuan-wen; DONG Da-wei; YAN Bing
School of Mechanical Engineering，Southwest JiaoTong University
关键词:
内燃机; 传感器工作间隙; 瞬时转速; 测量误差机理
Keywords:
combustion engine; sensor working clearance; instantaneous speed; mechanism of measurement error
分类号:
TK411.6
文献标志码:
A
摘要:
为研究传感器工作间隙变化引起瞬时转速测量误差的机理，从磁电传感器电压特性出发，考虑传 感器支架振动、齿盘安装偏心及曲轴弯曲振动3 种因素，推导得到工作间隙变化情况下输出电压和瞬时 转速的统一表达式，并对转速测量误差进行了量化，阐明了作用机理；研究了各因素对瞬时转速误差影 响规律，得出满足工程误差(角位移小于0.1°)要求限值的计算方法；研究了基准电压对瞬时转速误差的 影响规律，得出取0 基准电压可消除3 个因素中调幅部分影响的结论．为改善瞬时转速测量精度提供了 理论依据．
Abstract:
To study the mechanism of the instantaneous speed measurement error caused by the variations of sensor working clearance，on the basis of voltage characteristics of magneto-electric sensor，and considering the three variation sources from sensor bracket vibration，fluted disc installation eccentric and crankshaft bending vibration，a unified expression of output voltage and instantaneous speed was derived，then the speed measurement error was quantized and its mechanism was elucidated. The influence of various factors on the instantaneous speed measurement error was studied. Calculation method of error limits that meet the engineering requirements(angular displacement less than 0.1°)was achieved. Effect of reference voltage on the instantaneous speed measurement error was discussed with conclusion that zero reference voltage could eliminate the impact of amplitude modulation(AM). The research provides a theoretical basis for the improvement of the accuracy of instantaneous speed measurement.

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更新日期/Last Update: 1900-01-01