PVDF压电传感器及敏感单元设计关键技术

张旭 覃双 杨舒棋 彭文杨 赵锋 于君 钟斌

张旭, 覃双, 杨舒棋, 彭文杨, 赵锋, 于君, 钟斌. PVDF压电传感器及敏感单元设计关键技术[J]. 高压物理学报, 2020, 34(2): 023401. doi: 10.11858/gywlxb.20190796
引用本文: 张旭, 覃双, 杨舒棋, 彭文杨, 赵锋, 于君, 钟斌. PVDF压电传感器及敏感单元设计关键技术[J]. 高压物理学报, 2020, 34(2): 023401. doi: 10.11858/gywlxb.20190796
ZHANG Xu, QIN Shuang, YANG Shuqi, PENG Wenyang, ZHAO Feng, YU Jun, ZHONG Bin. Key Design Techniques for PVDF Sensitive Element Used in Dynamic Compression Experiments[J]. Chinese Journal of High Pressure Physics, 2020, 34(2): 023401. doi: 10.11858/gywlxb.20190796
Citation: ZHANG Xu, QIN Shuang, YANG Shuqi, PENG Wenyang, ZHAO Feng, YU Jun, ZHONG Bin. Key Design Techniques for PVDF Sensitive Element Used in Dynamic Compression Experiments[J]. Chinese Journal of High Pressure Physics, 2020, 34(2): 023401. doi: 10.11858/gywlxb.20190796

PVDF压电传感器及敏感单元设计关键技术

doi: 10.11858/gywlxb.20190796
基金项目: 国防科工局技术基础项目(JSZL2016212C001);科学挑战计划(TZ20118001)
详细信息
    作者简介:

    张 旭(1972-),男,研究员,博士生导师,主要从事流体动力学研究. E-mail:caepzx@sohu.com

  • 中图分类号: O521.3; TJ55

Key Design Techniques for PVDF Sensitive Element Used in Dynamic Compression Experiments

  • 摘要: 研究了聚偏二氟乙烯(PVDF)柔性压电传感器敏感单元设计关键技术和工艺。通过传感器敏感单元设计、电极制作、极化和封装研究实现功能,结合动态冲击压缩实验,对自主研制的PVDF传感器在不同压力段进行标定和A类不确定度评价,实验数据的A类不确定度优于10%,说明所研制的PVDF压电传感器精度高、重复性好,能够满足0.3~10.0 GPa动态冲击压力测量应用需求。目前产品设计水平已达到6级,后续将进一步开展更高压段有效性的应用设计、温度补偿效应研究和工程化产品设计。

     

  • 图  敏感单元形状设计

    Figure  1.  Sensitive element design

    图  PVDF薄膜电极结构和热极化装置

    Figure  2.  Schematic diagram of PVDF film electrode and thermal polarization

    图  $ 20 \;{\text{μ}}{\rm{m}}$厚PVDF薄膜的热极化

    Figure  3.  Effect of polarized electric field on $ 20 \;{\text{μ}}{\rm{m}}$ thick PVDF film

    图  PVDF传感器结构

    Figure  4.  PVDF sensor structure

    图  压电薄膜传感器电荷模式等效电路

    Figure  5.  The equivalent circuit of electric charge mode of PVDF film sensor

    图  测试系统测量电路

    Figure  6.  Measurement circuit of PVDF film sensor test system

    图  对称碰撞实验示意图

    Figure  7.  Experimental scheme of symmetrical impact

    图  $ 30 \;{\text{μ}}{\rm{m}}$-PVDF传感器低压段标定曲线

    Figure  8.  Calibration curve of $ 30 \;{\text{μ}}{\rm{m}}$-PVDF in low pressure zone

    图  $ 30 \;{\text{μ}}{\rm{m}}$-PVDF传感器高压段标定曲线

    Figure  9.  Calibration curve of $ 30 \;{\text{μ}}{\rm{m}}$-PVDF in high pressure zone

    表  1  Al和45钢的Hugoniot参数

    Table  1.   Hugoniot parameters of Al and 45 steel

    Material${{\;\rho _0}}$/(g·cm–3)c0/(km·s–1)λ
    Al2.7855.3281.338
    45 steel7.8504.4831.332
    下载: 导出CSV

    表  2  电荷法实验结果

    Table  2.   Experimental results by charge method

    Exp.No.Material of flyeru0/(m·s−1)p/GPaUmax/V(Q/A)max/($ {\text{μ}}$C·cm−2d33/(pC·N−1)Pr/($ {\text{μ}}$C·cm−2
    0830-1LY12 Al48.4340.361 20.598 670.665 212.08.279 7
    0830-245 steel83.3841.473 01.097 901.219 910.87.528 9
    0830-345 steel109.5571.942 81.367 271.519 210.57.878 1
    0830-445 steel129.5362.303 81.433 011.592 215.57.987 1
    0831-1LY12 Al126.2210.950 60.813 580.904 015.210.301 7
    1128-1LY12 Al47.1370.351 50.459 010.510 015.17.806 1
    1030LY12 Al628.5315.395 01.636 011.817 815.66.934 0
    1026PMMA1 004.7042.426 11.120 071.244 515.37.832 2
    1107LY12 Al970.2758.069 31.883 432.092 711.47.216 3
    1108LY12 Al1 250.44110.725 52.357 622.619 612.88.287 2
    下载: 导出CSV
  • [1] KAWAI H. The piezoelectricity of poly (vinylidene fluoride) [J]. Japanese Journal of Applied Physics, 1969, 8(7): 975–976. doi: 10.1143/JJAP.8.975
    [2] BAUER F. Method and device for polarizing ferroelectric materials: 4611260 [P]. 1986–09–09.
    [3] BAUER F, LICHTENBERGER A. Use of PVF2 shock gauges for stress measurements in Hopkinson bar [C]// SCHMIDT S C, HOLMES N C. Shock Waves in Condensed Matter. California, 1987: 751–755.
    [4] OBARA T, BOURNE N K, MEBAR Y. The construction and calibration of an inexpensive PVDF stress gauge for fast pressure measurements [J]. Measurement Science and Technology, 1995, 6(4): 345. doi: 10.1088/0957-0233/6/4/001
    [5] SALISBURY D A, WINTER R E, TAYLOR P, et al. The response of foams to shock compression [J]. AIP Conference Proceedings, 2000, 505(1): 197–200.
    [6] FIELD J E, WALLEY S M, PROUD W G, et al. Review of experimental techniques for high rate deformation and shock studies [J]. International Journal of Impact Engineering, 2004, 30(7): 725–775. doi: 10.1016/j.ijimpeng.2004.03.005
    [7] GAMA B A, LOPATNIKOV S L, GILLESPIE Jr J W. Hopkinson bar experimental technique: a critical review [J]. Applied Mechanics Reviews, 2004, 57(4): 223–250. doi: 10.1115/1.1704626
    [8] YANG L M, SHIM V P W. An analysis of stress uniformity in split Hopkinson bar test specimens [J]. International Journal of Impact Engineering, 2005, 31(2): 129–150. doi: 10.1016/j.ijimpeng.2003.09.002
    [9] 席道瑛, 郑永来. PVDF压电计在动态应力测量中的应用 [J]. 爆炸与冲击, 1995, 15(2): 174–179.

    XI D Y, ZHENG Y L. Application of PVDF gauges to dynamical stress measurements [J]. Explosion and Shock Waves, 1995, 15(2): 174–179.
  • 加载中
图(9) / 表(2)
计量
  • 文章访问数:  9360
  • HTML全文浏览量:  3087
  • PDF下载量:  46
出版历程
  • 收稿日期:  2019-06-26
  • 修回日期:  2019-07-14
  • 发布日期:  2020-02-25

目录

    /

    返回文章
    返回