公开(公告)号：KR1020030061200A

公开(公告)日：2003-07-18

申请号：KR1020020001744

申请日：2002-01-11

Applicant: 국방과학연구소

Inventor： 백성현 ,  최경영 ,  황을하

IPC: G01B9/02

Abstract: PURPOSE: A photo detector and a photo detecting method are provided to achieve a simple and compact structure of the photo detector by aligning optical fibers in a row. CONSTITUTION: A photo detector includes a light source(25) for radiating laser beam(26), a first optical fiber(21) for transmitting laser beam(26) radiated from the light source(25), a lens(23) for allowing laser beam(26) to be focused onto an upper surface of a sample(24), and a second optical fiber(22) for transmitting reflection beam(26a), which is reflected from the upper surface of the sample(24) spaced from a center of the lens(23) by a predetermined distance corresponding to twice of a focusing distance of the lens(23), into a signal processing section(27). Ends of the first and second optical fibers(21,22) and the upper surface of the sample(24) are located at positions, which are spaced from the center of the lens(23) by the predetermined distance corresponding to twice of the focusing distance of the lens(23), so that an image of the end of the first optical fiber(21) is formed in an opposite side of the lens(23), which is spaced from the lens(23) at the same distance with the end of the first optical fiber(21).

Abstract translation: 目的：提供光电检测器和光电检测方法，以通过将光纤排列成一行来实现光电检测器的简单紧凑的结构。 构成：光检测器包括用于辐射激光束（26）的光源（25），用于传输从光源（25）辐射的激光束（26）的第一光纤（21），用于允许 将聚焦在样品（24）的上表面上的激光束（26）和用于透射从样品（24）的上表面反射的反射光束（26a）的第二光纤（22） 透镜（23）的中心距离相当于透镜（23）的聚焦距离的两倍的预定距离处于信号处理部分（27）中。 第一和第二光纤（21,22）的端部和样品（24）的上表面位于与透镜（23）的中心相隔预定距离的位置处，该距离对应于聚焦的两倍 透镜（23）的距离，使得第一光纤（21）的端部的图像形成在与透镜（23）相距一定距离的透镜（23）的相对侧， 第一光纤（21）的端部。

公开(公告)号：KR101315856B1

公开(公告)日：2013-10-08

申请号：KR1020120039508

申请日：2012-04-17

Applicant: 국방과학연구소

Inventor： 정진혁 ,  김인호 ,  백성현 ,  조수경

IPC: G01N21/65 ,  G01V8/10

Abstract: PURPOSE: A device using a linear optical fiber bundle for optically detecting dangerous liquid is provided to determine whether liquid contained inside a container is dangerous or not by using a spectroscopic analysis method. CONSTITUTION: A device using a linear optical fiber bundle for optically detecting dangerous liquid includes a target object arrangement unit (C), a laser emitting unit (50), a semi-cylindrical collecting lens (20), a linear optical fiber cable (30), and a spectrum determining unit (60). The target object arrangement unit is formed into a chamber form of which an internal space capable of placing a container (10) containing liquid is opened/closed by a cover or a lid, and the inner surface thereof is covered with a black body. The laser emitting unit is connected to the target object arrangement unit so that continuous wave lasers (40) of a frequency of 532 nm, which has energy of 150 mJ or less, are incident into the internal space of the target object arrangement unit. The semi-cylindrical collecting lens collects Raman signals generated when the continuous wave lasers are penetrated through the liquid inside the container. A collecting lens head (31) and a spectrum determining unit head (32) are arranged on both end portions of a linear optical fiber bundle (33) composed of a plurality of linear optical fibers respectively. When the Raman signals are inputted, the spectrum determining unit splits lights with a light splitter (62) and compares and analyzes the split lights with a dangerous material spectrum information stored in the database of a computer (63), thereby determining whether the liquid inside the container is dangerous or not. [Reference numerals] (AA) Front; (BB) Back

Abstract translation: 目的：提供一种使用线性光纤束进行光学检测危险液体的装置，通过使用光谱分析方法确定容器内容纳的液体是否危险。 构成：使用用于光学检测危险液体的线性光纤束的装置包括目标物体排列单元（C），激光发射单元（50），半圆柱形收集透镜（20），线性光纤电缆（30） ）和频谱确定单元（60）。 目标物体排列单元被形成为腔室形式，其能够将容纳液体的容器（10）的内部空间通过盖或盖打开/关闭，并且其内表面被黑体覆盖。 激光发射单元连接到目标对象排列单元，使得具有150mJ以下的能量的532nm的频率的连续波激光器（40）入射到目标物体排列单元的内部空间。 半圆柱形收集透镜收集当连续波激光穿过容器内的液体时产生的拉曼信号。 收集透镜头（31）和光谱确定单元头（32）分别布置在由多条线性光纤构成的线性光纤束（33）的两端部上。 当输入拉曼信号时，光谱确定单元用光分离器（62）分离光，并将存储在计算机（63）的数据库中的危险物质光谱信息进行比较并分析分光，从而确定是否内部的液体 容器是否危险。 （附图标记）（AA）前面; （BB）返回

公开(公告)号：KR101953700B1

公开(公告)日：2019-03-04

申请号：KR1020170136935

申请日：2017-10-20

Applicant: 국방과학연구소

Inventor： 정명원 ,  이우상 ,  최진수 ,  백성현

IPC: G01R31/00 ,  G01R29/08 ,  B64C39/02

公开(公告)号：KR101367865B1

公开(公告)日：2014-02-27

申请号：KR1020130060815

申请日：2013-05-29

Applicant: 국방과학연구소

Inventor： 정태신 ,  백성현 ,  이병호

IPC: B23K1/00 ,  B23K1/19 ,  B23K35/30 ,  B23K35/363

Abstract: The present invention relates to a brazing method for bonding dissimilar materials such as a titanium alloy and a stainless steel comprising: a step (a) for heating a Ni-based filler metal at 25-100°C which is over a melting point of the Ni-based filler metal after arranging the Ni-based filler metal on a binding part of a titanium alloy and a stainless steel; a first maintaining step (b) for maintaining the Ni-based filler metal for a fixed hour at 25-100°C which is over a melting point of the Ni-based filler metal; and a step (c) for cooling the Ni-based filler metal, and comprising a second maintaining step for maintaining a fixed temperature in heating of the (a) step. Especially, a melting point can be lowered by alloying between Ni and a titanium alloy since a Ni-based filler metal is used. Therefore, since diffusion between a titanium alloy and a stainless steel is promoted, sound brazing bonding can be performed. [Reference numerals] (AA) Start; (BB) End; (S10) Assembling stage; (S11) Titanium alloy; (S12) Stainless steel; (S13) Filler metal; (S15) Arrange a binding part between a stainless steel and a titanium alloy of the filler metal; (S20) Heating stage; (S21) Start heating of the filler metal; (S22) Maintain the temperature of the filler metal during heating; (S23) Finish heating of the filler metal; (S30) Holding stage; (S31) Maintain the temperature of the filler metal after heating is finished; (S40) Cooling stage; (S41) Cool the filler metal

Abstract translation: 本发明涉及一种用于接合诸如钛合金和不锈钢的不同材料的钎焊方法，包括：用于加热在25-100℃的Ni基填料金属的步骤（a），该步骤超过熔点 将Ni基填充金属配置在钛合金和不锈钢的结合部上之后的Ni基填充金属; 第一保持步骤（b），用于将Ni基填料金属在超过Ni基填料金属的熔点的25-100℃下保持固定的时间; 以及用于冷却所述Ni基填充金属的步骤（c），并且包括用于维持（a）步骤的加热中的固定温度的第二保持步骤。 特别地，由于使用Ni基填充金属，所以通过Ni和钛合金之间的合金化可以降低熔点。 因此，由于钛合金和不锈钢之间的扩散被促进，所以可以进行声音钎焊。 （附图标记）（AA）开始; （BB）结束; （S10）组装阶段; （S11）钛合金; （S12）不锈钢; （S13）填料金属; （S15）在填充金属的不锈钢和钛合金之间布置结合部分; （S20）加热阶段; （S21）开始加热填充金属; （S22）加热时保持填充金属的温度; （S23）填充金属的加热; （S30）保持阶段; （S31）加热结束后保持填充金属的温度; （S40）冷却阶段; （S41）冷却填充金属