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    • 5. 发明公开
    • 볼트 점검 장치
    • 用于检查螺栓的装置
    • KR1020160059109A
    • 2016-05-26
    • KR1020140160451
    • 2014-11-18
    • 한국철도공사
    • 김진수서승현전성광박종건송창혁
    • G01N29/12G01M7/08E01B37/00B61D15/00
    • G01N29/12B61D15/00E01B37/00G01M7/08
    • 본발명은볼트점검장치에관한것으로, 상세하게는철도침목(700)의볼트가이완되었는지점검하기위해볼트에타격을가함으로써타격시 소리의파형비교를이용하여이완된볼트를점검하는것을특징으로하는볼트점검장치에관한것이다.
    • 检测螺栓的装置技术领域本发明涉及一种用于检查螺栓的装置,更具体地说,涉及一种通过在铁路连接件(700)上敲击螺栓来检查螺栓以检查螺栓是否松动的装置。 并使用比较由冲击声产生的声音的波形来检查松动螺栓。 检查螺栓的装置包括:主体(100),其具有与铁路接合以便可移动的轮; 检查单元(200),包括连接到所述主体(100)的锤板(210),以撞击连接器(500)的顶表面以将轨道(400)固定在所述铁路连接带(700)上; 以及连接到所述锤板(210)的顶部的弹性单元; 控制单元,用于接收连接器(500)的击打声音,并确定是否有障碍; 以及输出单元(300),用于通过控制单元的控制来显示是否存在紊乱。
    • 9. 发明公开
    • 레이저 초음파를 이용한 소성 변형률 측정 방법 및 장치
    • 使用激光超声波测量塑性变形比的方法和装置
    • KR1020130014817A
    • 2013-02-12
    • KR1020110076498
    • 2011-08-01
    • 주식회사 포스코
    • 임충수허형준박현철이상진
    • G01N29/04G01N21/86G01N33/20
    • G01N29/04G01N29/12G01N29/2418G01N29/42G01N33/20G01N2291/0234
    • PURPOSE: A device and a device for measuring plastic strain using laser ultrasonic waves are provided to accurately measure the plastic strain by measuring the plastic strain by a non-contact method. CONSTITUTION: A device for measuring plastic strain using laser ultrasonic waves comprises an ultrasonic wave generating unit(100), a laser generating unit, a frequency conversion detecting unit(120), and a calculating unit(121). The ultrasonic generating unit generates ultrasonic waves by irradiating first laser beams(B1) to a first position(P1), a second position(P2), and a third position(P3) around a measurement point(P0) of an inspecting object. The laser generating unit irradiates second laser beams to the measurement point where first ultrasonic waves from the first point, second ultrasonic waves from the second point, and third ultrasonic waves from the third point reach. The frequency conversion detecting unit detects changes in a frequency of the second laser beams. The calculating unit calculates speeds of the first ultrasonic waves, the second ultrasonic waves, and the third ultrasonic waves based on waveform data detected by the frequency conversion detecting unit and obtains the plastic strain of the inspecting object by using the calculated speeds of the first, second, and the third ultrasonic waves. [Reference numerals] (101) Laser source for generating the ultrasonic waves; (110) Laser source(104) for detecting the ultrasonic waves; (120) Frequency conversion detecting unit; (121a) First calculating unit; (121b) Second calculating unit
    • 目的:提供一种使用激光超声波测量塑性应变的装置和装置,通过非接触式测量塑性应变来精确测量塑性应变。 构成:使用激光超声波测量塑性应变的装置包括超声波发生单元(100),激光产生单元,频率转换检测单元(120)和计算单元(121)。 超声波发生单元通过将第一激光束(B1)照射到检查对象的测量点(P0)周围的第一位置(P1),第二位置(P2)和第三位置(P3)来产生超声波。 激光产生单元将第二激光束照射到测量点,其中来自第一点的第一超声波,来自第二点的第二超声波和来自第三点的第三超声波到达。 频率转换检测单元检测第二激光束的频率的变化。 计算单元基于由频率转换检测单元检测的波形数据计算第一超声波,第二超声波和第三超声波的速度,并且通过使用计算出的第一超声波和第三超声波的速度来计算检查对象的塑性应变, 第二和第三超声波。 (附图标记)(101)用于产生超声波的激光源; (110)用于检测超声波的激光源(104); (120)变频检测单元; (121a)第一计算单元; (121b)第二计算单元
    • 10. 发明公开
    • 초음파를 이용한 열처리 상태 측정장치 및 방법
    • 使用超声波测量装置和热处理状态的方法
    • KR1020120139216A
    • 2012-12-27
    • KR1020110058890
    • 2011-06-17
    • 전남대학교산학협력단
    • 조윤호이재선현승호
    • G01N29/12G01N29/44
    • G01N29/12G01N29/34G01N29/4472G01N2291/0234G01N2291/0423
    • PURPOSE: A heat treated state measuring device using ultrasounds and a method thereof are provided to simply measure a heat treated state of a metal material by using ultrasounds without various samplings grasping mechanical properties of the metal material. CONSTITUTION: A heat treated state measuring device using ultrasounds comprises an input unit(10), an ultrasonic transmitter(20), a surface wave receiver(30), and a processor(40). Sorts of a metal material and heat treatment method are input through the input unit. The ultrasonic transmitter generates the ultrasounds of a ton burst wave form, thereby transmitting the ultrasounds to a surface of the metal material. The surface wave receiver receives surface wave signals transmitted to the surface of the metal material. The processor calculates a non-linear parameter value by using ultrasonic frequencies and surface wave signals and judges whether or not the calculated non-linear parameter value is included in a range of the non-linear parameter value corresponding to a heat treatment method and the metal material saved in a memory. [Reference numerals] (10) Input unit; (20) Ultrasonic transmitter; (30) Surface wave receiver; (40) Processor; (50) Memory; (60) Display unit; (AA) Tone bust wave
    • 目的:提供使用超声波的热处理状态测量装置及其方法,以简单地通过使用超声波来测量金属材料的热处理状态,而不用抓取金属材料的机械性能的各种取样。 构成:使用超声波的热处理状态测量装置包括输入单元(10),超声波发射器(20),表面波接收器(30)和处理器(40)。 各种金属材料和热处理方法通过输入单元输入。 超声波发射器产生吨脉冲波形的超声波,从而将超声波传送到金属材料的表面。 表面波接收器接收传输到金属材料表面的表面波信号。 处理器通过使用超声波频率和表面波信号来计算非线性参数值,并判断所计算的非线性参数值是否包括在与热处理方法对应的非线性参数值的范围内,并且金属 材料保存在内存中。 (附图标记)(10)输入单元; (20)超声波发射机; (30)表面波接收机; (40)处理器 (50)记忆; (60)显示单元; (AA)Tone bust wave