• 中国科技论文统计源期刊
  • 中文核心期刊
  • 中国科技核心期刊
  • 中国机械工程学会无损检测分会会刊
高级检索

小口径薄壁管超声检测系统中发射接收电路的设计与实现

李娜, 李伯权, 师芳芳, 宫俊杰, 张碧星

李娜, 李伯权, 师芳芳, 宫俊杰, 张碧星. 小口径薄壁管超声检测系统中发射接收电路的设计与实现[J]. 无损检测, 2013, 35(1): 47-50.
引用本文: 李娜, 李伯权, 师芳芳, 宫俊杰, 张碧星. 小口径薄壁管超声检测系统中发射接收电路的设计与实现[J]. 无损检测, 2013, 35(1): 47-50.
LI Na, LI Bo-Quan, SHI Fang-Fang, GONG Jun-Jie, ZHANG Bi-Xing. Design and Realization of Transmitting and Receiving Circuit of Ultrasonic Detection System for Tubes with Small Diameter and Thin Wall[J]. Nondestructive Testing, 2013, 35(1): 47-50.
Citation: LI Na, LI Bo-Quan, SHI Fang-Fang, GONG Jun-Jie, ZHANG Bi-Xing. Design and Realization of Transmitting and Receiving Circuit of Ultrasonic Detection System for Tubes with Small Diameter and Thin Wall[J]. Nondestructive Testing, 2013, 35(1): 47-50.

小口径薄壁管超声检测系统中发射接收电路的设计与实现

基金项目: 

国家自然科学基金委员会基金资助项目(10974220,11074273)

详细信息
    作者简介:

    李娜(1987-),女,硕士研究生,研究方向为超声传播与成像。

  • 中图分类号: O426.9;TG115.28+5

Design and Realization of Transmitting and Receiving Circuit of Ultrasonic Detection System for Tubes with Small Diameter and Thin Wall

  • 摘要: 针对小口径薄壁管曲率大、缺陷小、回波幅度小、衰减大等问题设计了一种超声发射接收电路。主要包括两个方面:一方面设计优良的发射电路以最有效的方式激励超声探头;另一方面设计具有较低噪声的接收电路。所设计的发射电路能够产生幅度-120 V、前沿时间8 ns的高压激励脉冲;接收电路的增益可调范围为80 dB。将研制的发射接收电路应用于超声检测系统中,并进行试验研究,检测试样为钛合金管,最小尺寸为 6 mm×0.5 mm,样管上的最小人工缺陷尺寸为0.05 mm×0.11 mm×2.9 mm的内伤,试验结果表明,所设计的超声发射接收电路具有足够高的信噪比来对小尺寸钛合金管进行实时检测。
    Abstract: A transmitting and receiving circuit was presented and developed for ultrasonic detection for tubes with small diameter and thin wall. Detecting for this kind of tubes usually encounters the difficulty of large curvature, small defects and small echo amplitude. The transmitting and receiving circuit is realized from two aspects. One is designing good transmitting circuit to excite the ultrasonic probe effectively. The other is designing good receiving circuit with low noise. The transmitting circuit can transmit high voltage pulse with the leading edge transition duration of 8 ns and the amplitude of -120 V. The range of the gain change of the receiving circuit can reach 80 dB. The experiments have been conducted by the transmitting and receiving circuit for detecting the titanium alloy tubes with different size. The minimum diameter and wall thickness of the tubes are 6 mm and 0.5 mm respectively. The artificial defects are fabricated in the tubes. The minimum defect is on the inner surface of the tube and the size is 0.05 mm(depth)×0.11 mm(width)×2.9 mm(length). The experiment results show that the transmitting and receiving circuit is well performed at the detection for the tubes with small diameter and thin wall.
  • [1] 张伟萍.钛合金管路连接件氩弧焊常见缺陷及控制[J].焊接,2005(4):40-41.
    [2] 郭成彬,蒋危平.认识数字超声探伤仪[J].无损检测,2004,26(3):149-154.
    [3] 孙军华,董明利,祝连庆.钢轨高速探伤系统超声发射/接收装置的设计[J].工具技术,2002,36(12):51-53.
    [4] 冯若.超声手册[M].南京:南京大学出版社,1999:760.
    [5] 韩振兴,李新碗,陈建平,等.图像增强器高速选通脉冲形成电路的设计与实现[J].电光与控制,2008,15(12):72-74.
    [6] GB/T 12969.1—2007钛及钛合金管材超声波探伤方法[S].
计量
  • 文章访问数:  2
  • HTML全文浏览量:  0
  • PDF下载量:  0
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-03-25
  • 刊出日期:  2013-01-09

目录

    /

    返回文章
    返回