CN109613125A - 一种用于检测砖石文物超声性质的耦合剂 - Google Patents

一种用于检测砖石文物超声性质的耦合剂 Download PDF

Info

Publication number
CN109613125A
CN109613125A CN201910057909.3A CN201910057909A CN109613125A CN 109613125 A CN109613125 A CN 109613125A CN 201910057909 A CN201910057909 A CN 201910057909A CN 109613125 A CN109613125 A CN 109613125A
Authority
CN
China
Prior art keywords
couplant
historical relic
detecting
ultrasonic
masonry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910057909.3A
Other languages
English (en)
Inventor
陈晓鹏
张中俭
申佳妮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Geosciences Beijing
Original Assignee
China University of Geosciences Beijing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Geosciences Beijing filed Critical China University of Geosciences Beijing
Priority to CN201910057909.3A priority Critical patent/CN109613125A/zh
Publication of CN109613125A publication Critical patent/CN109613125A/zh
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22Details, e.g. general constructional or apparatus details
    • G01N29/28Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

本发明涉及一种用于检测砖石文物超声性质的耦合剂材料,具体来说是一种主要成分为聚乙烯醇的液体胶水。该产品能够避免目前黄油和凡士林做为耦合剂的缺陷,具有价格低、水溶性(易清除)、良好的声导效果等优点。

Description

一种用于检测砖石文物超声性质的耦合剂
技术领域
本发明涉及一种用于检测砖石文物的超声耦合剂。
背景技术
在我国的砖石文物保护领域中,超声波检测技术已有较多成果与应用。通过观测和分析超声波在介质中的波速、波幅、波形等参数,对分析砖石文物的物理力学特性、风化程度、结构特征等具有重要意义。
超声波在传播时遇阻抗差别较大的界面会产生反射从而减小声能。耦合剂的作用是使超声波在换能器与被检测材料的界面上的衰减减小。而在砖石质文物检测中所使用的耦合剂要求既有良好的超声穿透性能和耦合性能,又要求有良好的可去除性,不能对文物造成伤害。实验室内,砖石材料性质检测时常用的超声耦合剂为黄油或凡士林。但是,对砖石文物而言,黄油、凡士林等油质耦合剂在超声检测使用后难以被完全清除,易残留在表面,对文物造成新的损害。在国家文物局发布的《WW/T0063-2015石质文物保护工程勘察规范》的第G.3.1.2条规定“不宜选用黄油或凡士林为耦合剂”,所以亟需发明声导效果好且易清除的耦合剂用于砖石质文物超声检测。
发明内容
本发明实施例的目的在于提供一种适用于砖石文物超声检测时的耦合剂材料,用以解决现有的检测砖石文物时耦合剂残留的问题。该耦合剂为聚乙烯醇液体胶水,产品具有价格低、水溶性、良好的声导效果等优点。
为实现上述目的,本发明实施例提供一种可用于检测砖石质文物的超声耦合剂材料,该耦合剂为普通商店出售的液体胶水,其主要有效成分为聚乙烯醇。
发明人对岩体工程常用的耦合剂与聚乙烯醇液体胶水进行了比较试验。选用聚乙烯醇液体胶水、黄油、土水混合物(土粒径小于0.088mm)、不同配比的面粉水混合物、石膏(石膏:水=3:2)、凡士林、丙二醇丙三醇混合物、牙膏(高露洁牌)等10种材料作为耦合剂,具体见表1。
表1所选择的10种耦合剂
测试时,选用5块尺寸为5×5×5cm的均匀性良好的岩石试块。对于每个试块选择两个平行表面使用对穿直透法测纵波波速。对于每种耦合剂,分别使用54kHz、150kHz、250kHz三种频率换能器进行测试。每种换能器频率下,每个试块测3次纵波波速,取平均值为测试结果。使用完一种耦合剂时,用干净的湿棉花球擦拭试块的两个表面,并放置室内24小时后换另一种耦合剂进行测试。不同耦合剂下试块纵波波速的测试结果见表2。
表2使用不同耦合剂的岩石纵波波速值(m/s)
在这10种耦合剂材料中,使用聚乙烯醇液体胶水时所测得的纵波波速值最大,说明在聚乙烯醇液体胶水的耦合作用下,超声波在换能器与被检测面的衰减最小。相较于其余9种耦合剂材料,聚乙烯醇液体胶水声导效果最好。
本发明实施例具有如下优点:
①能够改进超声波换能器与被检测材料的耦合效果,相较于目前常用的黄油、凡士林等耦合剂有更好的声导效果。
②比目前常用的耦合剂材料价格更低且易于购得。
③具有良好的水溶性,易于清除,适合用于砖石文物的超声检测。
具体实施方式
以下实施例用于说明本发明,但不用来限制本发明的范围。
实施例1
本实施例所测试的内容为北京房山大理岩的纵波波速。所使用的仪器为瑞士产的PunditPL—200PE超声波检测仪。将聚乙烯醇液体胶水均匀地涂抹于频率为250kHz的换能器上,使用换能器与大理岩试块的测试面接触,采用对穿直透法测试其传播时间。使用游标卡尺测量两个换能器圆心间的距离。测试结束后,迅速用纯净水浸湿的棉花球擦拭测试面。
实施例2
本实施例所测试的内容为自北京圆明园内某砂岩和大理岩文物的纵波波速。本实施例所使用的仪器为瑞士产的PunditPL—200PE超声波检测仪。首先,用细毛刷扫除文物测试点上的杂质。然后,在文物上用粉笔标记两个点作为超声波两个测试点。接着,使用三维激光扫描仪扫描文物,在三维图上选定超声波两个测试点,并测量两点间的距离。最后,将聚乙烯醇液体胶水均匀地涂抹于换能器上,使用换能器的圆心与文物上所标记的测试点紧密接触,采用同侧直达波法进行纵波波速测试。测试结束后,迅速用纯净水浸湿的棉花球擦拭测试面。
虽然,上文中已经用一般性说明及具体实施例对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。

Claims (2)

1.一种用于检测砖石文物超声性质的耦合剂材料,其特征在于它是一种液体胶水,可以购于普通商店。
2.根据权利要求1所述的液体胶水,其特征在于其主要有效成分为聚乙烯醇。
CN201910057909.3A 2019-01-22 2019-01-22 一种用于检测砖石文物超声性质的耦合剂 Pending CN109613125A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910057909.3A CN109613125A (zh) 2019-01-22 2019-01-22 一种用于检测砖石文物超声性质的耦合剂

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910057909.3A CN109613125A (zh) 2019-01-22 2019-01-22 一种用于检测砖石文物超声性质的耦合剂

Publications (1)

Publication Number Publication Date
CN109613125A true CN109613125A (zh) 2019-04-12

Family

ID=66017090

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910057909.3A Pending CN109613125A (zh) 2019-01-22 2019-01-22 一种用于检测砖石文物超声性质的耦合剂

Country Status (1)

Country Link
CN (1) CN109613125A (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1153667A (zh) * 1996-01-02 1997-07-09 崔京怡 超声耦合剂
CN103660437A (zh) * 2013-12-05 2014-03-26 广东挚信彩印有限公司 一种纳米防渗透蒸煮袋及其纳米粘结剂及制作方法
CN107854696A (zh) * 2017-12-22 2018-03-30 重庆医科大学附属永川医院 一种结膜型医用超声耦合剂及其制备方法与使用方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1153667A (zh) * 1996-01-02 1997-07-09 崔京怡 超声耦合剂
CN103660437A (zh) * 2013-12-05 2014-03-26 广东挚信彩印有限公司 一种纳米防渗透蒸煮袋及其纳米粘结剂及制作方法
CN107854696A (zh) * 2017-12-22 2018-03-30 重庆医科大学附属永川医院 一种结膜型医用超声耦合剂及其制备方法与使用方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
姚远: "超声波法在检测石质文物病害方面的试验研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》 *
魏雪纹 等: "介绍一种超声探头耦合剂", 《药学通报》 *

Similar Documents

Publication Publication Date Title
Laureti et al. Detection of rebars in concrete using advanced ultrasonic pulse compression techniques
CN110243320B (zh) 一种隧道衬砌裂缝深度非接触测量方法及装置
Theobald et al. Couplants and their influence on AE sensor sensitivity
Cetrangolo et al. Inspection of Concrete Using Air-Coupled Ultrasonic Pulse Velocity.
CN109613125A (zh) 一种用于检测砖石文物超声性质的耦合剂
Sukmana et al. Application of air-coupled ultrasound to noncontact surface roughness evaluation
CN110824017B (zh) 一种软材料声学参数的测量方法
Lin et al. Use of the normalized impact-echo spectrum to monitor the setting process of mortar
Sachse Ultrasonic spectroscopy of a fluid‐filled cavity in an elastic solid
Netshidavhini et al. Effects of various couplants on carbon steel and aluminium materials using ultrasonic testing
Birgül Hilbert transformation of waveforms to determine shear wave velocity in concrete
JPH0454447A (ja) 疲労損傷計測方法
Suparta Estimation of solid material surface roughness using time-of-flight ultrasound immerse transducer
Battaglini et al. The use of pulse compression and frequency modulated continuous wave to improve ultrasonic non destructive evaluation of highly-scattering materials
CN104132995A (zh) 一种基于解卷积技术的超声无损检测方法
Bui et al. Polymer-based capacity micromachined ultrasonic transducer for surface roughness measurement
Pedersen et al. Application of time delay spectrometry for rough surface characterization
Deroo et al. Damage detection in concrete using diffuse ultrasound measurements
Nishimura et al. Evolution of spall-damage in iron caused by repeated plate impacts: Ultrasonic evaluation
Mohamed et al. Low frequency coded waveform for the inspection of concrete structures
Ghosh et al. Near Surface Defect Detection in a Concrete Slab Using Ultrasonic Rayleigh Wave-A Numerical Study
Tsunoda et al. Application of linearized inverse scattering methods for the inspection in steel plates embedded in concrete structures
Abdelhay et al. Ultrasonic evaluation of surface roughness using normal incidence pulse-echo technique
Fahr et al. Surface acoustic wave studies of surface cracks in ceramics
Shivamurthy et al. Case study on water based cellulose couplant in contact type ultrasonic testing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Zhang Zhongjian

Inventor after: Chen Xiaopeng

Inventor after: Shen Jiani

Inventor before: Chen Xiaopeng

Inventor before: Zhang Zhongjian

Inventor before: Shen Jiani

WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190412