作者：任先贞1,2, 裴东兴1,2, 沈大伟1,2
作者单位：1. 中北大学电子测试技术国家重点实验室, 山西 太原 030051;
2. 中北大学仪器科学与动态测试教育部重点实验室, 山西 太原 030051
关键词：盲孔测温传感器;瞬态温度;非接触式测量;分析法外推技术
摘要：
目前炮膛内壁瞬态温度具有温度高、变化快、测试环境恶劣等特点，不便于准确测量，普遍采用动态校准方法来减少瞬态温度的误差，但是该方法对仪器动态性能要求高。该文根据测试系统原理，利用盲孔测温传感器验证炮膛内壁瞬态温度的变化，采用非接触式测量瞬态温度，同时利用分析法外推技术对0.05 cm和0.1 cm处的温度进行推导。实验表明：在误差允许的范围内，0.05 cm和0.1 cm处的温度与实验测得的温度变化一致。论证该系统对炮膛内壁瞬态温度测量的可行性，可以完成在恶劣环境下的数据测量，并且该系统成本低，数据可靠，结构简单，对今后更加深入地研究膛内壁瞬态温度有参考价值。
Testing of transient temperature based on temperature sensors blind hole
REN Xianzhen1,2, PEI Dongxing1,2, SHEN Dawei1,2
1. Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan 030051, China;
2. Key Laboratory for Instrumentation Science & Dynamic Measurement of Minstry of Education, North University of China, Taiyuan 030051, China
Abstract: Aiming at the inner wall of the bore having a high temperature transient temperature changes fast,harsh test environment and other characteristics,not easy to accurately measure,commonly used dynamic calibration methods to reduce the transient temperature error,but this method requires high dynamic performance instrument.On the basis of this paper according to the principle of test system,the use of temperature sensors to verify the blind hole bore inner wall transient temperature changes,the use of non-contact measurement of transient temperature,while taking advantage of technical analysis extrapolated temperature at 0.05 cm and 0.1 cm derivation.The experimental results show that the temperature of 0.1 cm and 0.05 cm is consistent with the experimental temperature variation in the range of error allowed.Demonstrated the feasibility of the system on the inner wall of the bore of transient temperature measurement,data measurement in harsh environments,and the cost of the system is low,data is reliable,simple structure,for the future more in-depth research chamber wall transient temperature has important reference value.
Keywords: blind temperature sensor;transient temperature analysis;non-contact measurement;extrapolation technique
2016, 42(11): 84-88 收稿日期: 2016-3-13;收到修改稿日期: 2016-3-13
基金项目:
作者简介: 任先贞(1991-),女,山西阳泉市人,硕士研究生,专业方向为控制工程。
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