基于频域干涉的小口径长身管内径测量系统

doi:10.3969/j.issn.1000-1093.2019.05.021

兵工学报 ›› 2019, Vol. 40 ›› Issue (5): 1077-1082.doi: 10.3969/j.issn.1000-1093.2019.05.021

基于频域干涉的小口径长身管内径测量系统

马鹤立，陶天炯，刘盛刚，王翔，翁继东

(中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900)

收稿日期:2018-07-29 修回日期:2018-07-29 上线日期:2019-07-26
作者简介:马鹤立（1987—），男，助理研究员。 E-mail: marcos12@126.com
基金资助:
中国工程物理研究院流体物理研究所发展基金项目（SFZ20130303）

A Measuring System for Inner Diameter of Small-caliber and Long Gun Bore Based on Frequency Domain Interferometry

MA Heli, TAO Tianjiong, LIU Shenggang, WANG Xiang, WENG Jidong

(Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China）

Received:2018-07-29 Revised:2018-07-29 Online:2019-07-26

摘要/Abstract

摘要： 二级轻气炮发射管内膛加工质量对动高压物理冲击加载实验数据的准确度有着重要影响。基于全光纤频域干涉测距技术研制的内径测量系统，可精确测量小口径、大长径比二级轻气炮管内径。该系统采用微型光纤探头作为频域干涉测距传感器，能对管内膛被测点坐标进行精密测量，经椭圆方程拟合后可准确获得待测截面内径。对长度为7 400 mm的28 mm型二级轻气炮炮管通体内径进行了测量，结果表明：在入口处、出口处与三点式内径千分尺测量结果的极差仅为0.014 mm.

关键词: 滑膛炮管, 频域干涉, 小口径, 内径测量

Abstract: The machining quality of two-stage light gas gun bore has asignificant effect on the accuracy of experimental data of shock loading in dynamic high pressure physics research. An inner diameter measuring system based on all-fiber frequency domain interferometry ranging technology is demonstrated，which is used to acquire the accurate inner diameter of bore with small caliber and large length-diameter ratio. The micro fiber-optic probes are used as ranging sensors to precisely measure the coordinates of measuring points in the bore. The inner diameter is calculated by using the elliptic equation to fit the coordinates. The measured result of 28 mm bore with a length of 7 400 mm indicates that the most deviation is 0.014 mm compared to the measured results of three-point inside micrometer. Key

Key words: smooth-borebarrel, frequencydomaininterferometry, small-caliber, innerdiametermeasurement

中图分类号:

TH745.3

马鹤立，陶天炯，刘盛刚，王翔，翁继东. 基于频域干涉的小口径长身管内径测量系统[J]. 兵工学报, 2019, 40(5): 1077-1082.

MA Heli, TAO Tianjiong, LIU Shenggang, WANG Xiang, WENG Jidong. A Measuring System for Inner Diameter of Small-caliber and Long Gun Bore Based on Frequency Domain Interferometry[J]. Acta Armamentarii, 2019, 40(5): 1077-1082.

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2019 年5月兵工学报ACTA
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基于频域干涉的小口径长身管内径测量系统

A Measuring System for Inner Diameter of Small-caliber and Long Gun Bore Based on Frequency Domain Interferometry

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