KR100414689B1 - Target Mirror Fixation Equipment for Alignment Measurement of Spacecraft Propulsion Module - Google Patents

Target Mirror Fixation Equipment for Alignment Measurement of Spacecraft Propulsion Module Download PDF

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KR100414689B1
KR100414689B1 KR10-2000-0046947A KR20000046947A KR100414689B1 KR 100414689 B1 KR100414689 B1 KR 100414689B1 KR 20000046947 A KR20000046947 A KR 20000046947A KR 100414689 B1 KR100414689 B1 KR 100414689B1
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mirror
alignment
target
target mirror
bracket
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KR10-2000-0046947A
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KR20020013656A (en
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윤용식
이동우
이상설
조창래
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한국항공우주연구원
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64GCOSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00Cosmonautic vehicles
    • B64G1/22Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/222Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64GCOSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00Cosmonautic vehicles
    • B64G1/10Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64GCOSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00Cosmonautic vehicles
    • B64G1/22Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/40Arrangements or adaptations of propulsion systems
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/26Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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Abstract

본 발명은 위성체의 자세제어용 추진체 분사장치 노즐에 대한 얼라인먼트를 측정하기 위한 타켓 미러를 안정되게 고정되도록 하는 미러 브라켓을 제공하는 위성체 추진장치 얼라인먼트 측정용 타켓 미러의 고정장치에 관한 것이다.The present invention relates to a fixing device for a satellite propulsion device alignment measurement target providing a mirror bracket for stably fixing the target mirror for measuring the alignment with respect to the propeller injector nozzle for controlling the attitude of the satellite.

우주 궤도에서 위성체의 자세제어를 위해 위성체의 발사전 지상 시험의 일종으로 얼라인먼트를 측정한다.Alignment is measured as a kind of pre-launch ground test of satellites to control satellites' attitude in space orbit.

얼라인먼트 측정은 측정 기준을 위한 마스터 큐브(Master Cube)와 각 자세제어용 센서 혹은 장치에 부착된 타켓 미러(Target Mirror)의 3차원 좌표를 측정하는 것이다.Alignment measurement measures the three-dimensional coordinates of the master cube and the target mirror attached to each posture control sensor or device.

본 발명은 타켓 미러(2)가 삽입되는 미러 삽입홈(7)에서 실리콘 접착제(8)로 고정되며, 반대편으로 절개홈(9)이 형성된 삽입고정 돌기(3)를 갖고, 삽입고정 돌기(3)의 내부에서 타켓 미러(2)에 적어도 3개의 미러 높이조절 나사(6)를 설치한 미러 브라켓(1)으로 인공위성 추진체 분사장치 노즐부의 얼라인먼트 측정뿐 아니라 방향성이 요구되는 항공기 및 인공위성의 자세제어용 센서의 얼라인먼트 측정이나 3차원 좌표의 측정시 동일한 방법으로 사용되는 것이다.The present invention is fixed with a silicone adhesive (8) in the mirror insertion groove (7) into which the target mirror (2) is inserted, and has an insertion fixing protrusion (3) formed with an incision groove (9) on the opposite side, and an insertion fixing protrusion (3). Is a mirror bracket (1) provided with at least three mirror height adjustment screws (6) in the target mirror (2) inside the antenna. It is used in the same way when measuring alignment or measuring 3D coordinates.

Description

위성체 추진장치 얼라인먼트 측정용 타켓 미러의 고정장치{Target Mirror Fixation Equipment for Alignment Measurement of Spacecraft Propulsion Module}Target Mirror Fixation Equipment for Alignment Measurement of Spacecraft Propulsion Module}

본 발명은 위성체의 자세제어용 추진체 분사장치 노즐에 대한 얼라인먼트를 측정하기 위한 타켓 미러를 안정되게 고정되도록 하는 미러 브라켓을 제공하는 위성체 추진장치 얼라인먼트 측정용 타켓 미러의 고정장치에 관한 것이다.The present invention relates to a fixing device for a satellite propulsion device alignment measurement target providing a mirror bracket for stably fixing the target mirror for measuring the alignment with respect to the propeller injector nozzle for controlling the attitude of the satellite.

우주 궤도에서 위성체의 자세제어를 위해 위성체의 발사전 지상 시험의 일종으로 얼라인먼트를 측정한다.Alignment is measured as a kind of pre-launch ground test of satellites to control satellites' attitude in space orbit.

얼라인먼트 측정은 측정 기준을 위한 마스터 큐브(Master Cube)와 각 자세제어용 센서 혹은 장치에 부착된 타켓 미러(Target Mirror)의 3차원 좌표를 측정하는 것이다.Alignment measurement measures the three-dimensional coordinates of the master cube and the target mirror attached to each posture control sensor or device.

대부분의 자세제어용 센서 혹은 장치에는 얼라인먼트 측정의 정확성을 위하여 제작시 타켓 미러를 볼트 혹은 접착제를 이용하여 장착하지만 추진체 분사장치 노즐부는 얼라인먼트 측정 이외에는 항상 개방되어 있어야 하므로 이 노즐의 얼라인먼트 측정을 위한 타켓 미러를 제작하여야 한다.Most of the posture control sensors or devices are equipped with a target mirror using bolts or adhesives for the purpose of the alignment measurement accuracy, but since the propellant nozzle part must always be open except for the alignment measurement, the target mirror for measuring the alignment of the nozzle is mounted. It must be manufactured.

즉, 로켓의 저면으로 추진체 분사장치가 4쌍이 설치되어 8개의 노즐이 돌출되어 있으면서 우주 궤도에서 설정된 궤도를 이탈하거나 위치가 상이하면 추진체 분사장치의 일방향에서 분사되어 설정된 자세로 제어되는 것이나, 정확한 자세제어를 위해서 정확한 얼라인먼트의 측정이 가능해야만 한다.That is, four pairs of propellant injectors are installed on the bottom of the rocket, and eight nozzles protrude, and if they are out of the orbit set in space orbit or are different in position, the propellant injector is sprayed in one direction of the propellant injector and controlled in the set posture. For control purposes, accurate alignment measurements must be possible.

본 발명은 위성체의 자세제어용 장치인 추진체 분사장치 노즐에 대한 얼라인먼트를 측정하기 위한 미러 브라켓을 제공하는 것이다.The present invention provides a mirror bracket for measuring alignment with respect to a propellant injector nozzle which is a device for controlling the attitude of a satellite.

본 발명은 미러 브라켓의 일측으로 타켓 미러가 설치되고 추진체 분사장치의 노즐부에 안정되게 설치되어 정확한 얼라인먼트를 측정하도록 하는 것이다.The present invention is to install a target mirror to one side of the mirror bracket and to be installed stably in the nozzle portion of the propellant injector to measure the correct alignment.

본 발명은 타켓 미러가 삽입되는 미러 삽입홈에서 실리콘 접착제로 고정되며, 반대편으로 절개홈이 형성된 삽입고정 돌기를 갖고, 삽입고정 돌기의 내부에서 타켓 미러에 적어도 3개의 미러 높이조절 나사를 설치한 미러 브라켓으로 얼라인먼트를 측정하도록 함을 특징으로 하는 것이다.The present invention is a mirror that is fixed with a silicone adhesive in the mirror insertion groove into which the target mirror is inserted, has an insertion fixing protrusion with an incision groove formed on the opposite side, and at least three mirror height adjusting screws are installed in the target mirror in the insertion fixing protrusion. It is characterized in that the alignment is measured by the bracket.

본 발명은 삽입고정 돌기의 외측에 오링 삽입홈을 형성하여 스프링형의 오링을 삽입함을 특징으로 하는 것이다.The present invention is characterized by inserting the O-ring of the spring type to form an O-ring insertion groove on the outside of the insertion fixing projections.

본 발명은 미러 브라켓의 미러 삽입홈이 타켓 미러의 지름보다 5mm정도 크게 성형하여 실리콘 접착제로 고정되도록 함을 특징으로 하는 것이다.The present invention is characterized in that the mirror insertion groove of the mirror bracket is molded by 5mm larger than the diameter of the target mirror to be fixed with a silicone adhesive.

도 1 은 본 발명의 설치상태를 나타낸 분리 사시도1 is an exploded perspective view showing the installation state of the present invention

도 2 는 본 발명의 타켓 미러가 고정된 미러 브라켓의 사시도2 is a perspective view of a mirror bracket to which the target mirror of the present invention is fixed;

도 3 은 본 발명의 설치상태 단면도3 is a cross-sectional view of the installation state of the present invention

도 4 는 본 발명의 측면도4 is a side view of the present invention;

[도면의 주요 부분에 대한 부호의 설명][Description of Symbols for Main Parts of Drawing]

1 : 미러 브라켓 2 : 타켓 미러1: mirror bracket 2: target mirror

3 : 삽입고정 돌기 4 : 오링 삽입홈3: Insertion fixing protrusion 4: O-ring insertion groove

5 : 오링 6 : 미러 높이조절 나사5: O-ring 6: mirror height adjustment screw

7 : 미러 삽입홈 8 : 실리콘 접착제7: mirror insert groove 8: silicone adhesive

9 : 절개홈 10 : 추진체 분사장치9: incision groove 10: propellant injector

본 발명은 앞면으로 타켓 미러(2)가 부착될 미러 삽입홈(7)을 타켓 미러(2)의 지름보다 약 5mm크게 형성하며, 반대방향에 삽입고정 돌기(3)를 돌출시켜 일정간격으로 절개홈(9)을 설치하여 원하는 곳에 삽입 고정이 가능하도록 하고, 삽입고정 돌기(3)의 안쪽에 오링 삽입홈(4)을 형성한 미러 브라켓(1)를 구성한다.The present invention forms a mirror insertion groove (7) to be attached to the target mirror (2) to the front about 5mm larger than the diameter of the target mirror (2), and protrudes the insertion fixing projection (3) in the opposite direction at regular intervals The groove 9 is installed to allow insertion and fixing where desired, and constitutes a mirror bracket 1 in which an O-ring insertion groove 4 is formed inside the insertion fixing protrusion 3.

상기 오링 삽입홈(4)에는 스프링 형태의 오링(5)을 삽입하여 추진체 분사장치(10)의 노즐부(17)에 삽입된 후 흔들리지 않도록 한다.The O-ring insertion groove 4 is inserted into the nozzle portion 17 of the propellant injector 10 by inserting a spring-shaped O-ring 5 so as not to shake.

삽입고정 돌기(3)의 안쪽과 미러 삽입홈(7)에는 3방향에 구멍을 형성하여 미러 높이조절 나사(6)를 설치하여 미러(2)의 높이와 방향을 조절할 수 있도록 한다.The inner side of the insertion fixing projection (3) and the mirror insertion groove (7) to form a hole in three directions to install the mirror height adjustment screw (6) to adjust the height and direction of the mirror (2).

타켓 미러(2)는 고정되기 전에 양면 테이프로 임시 붙여놓고, 타켓 미러(2)의 높이와 방향의 조절 후 실리콘으로 접착시킨다.The target mirror 2 is temporarily pasted with a double-sided tape before being fixed, and after the height and direction of the target mirror 2 is adjusted, the target mirror 2 is bonded with silicon.

추진체 분사장치(10)는 로켓의 저면에서 4쌍이 설치되며 서머스댓(11)의 양측으로 픽쳐히터(12)가 설치되며 선단에서 히트실트(13)로 노즐부(17)가 보호되도록하고, 노즐부(17)의 선단에는 미러 브라켓(1)이 삽입되어 고정된다.The propellant injector 10 is provided with four pairs at the bottom of the rocket, and the picture heater 12 is installed at both sides of the thermos 11 and the heat seal 13 at the tip to protect the nozzle unit 17, and the nozzle The mirror bracket 1 is inserted and fixed to the tip of the unit 17.

타켓 미러(2)를 측정하기 위해서는 측정 장소의 지면이 고르고 내·외부의 진동에 영향을 받지 않는 곳에서 위성체 노즐과 동일한 형상이 부착된 스탠드를 제작하여 타켓 미러(2)가 설치된 미러 브라켓(1)을 부착하여 측정작업을 수행한다.In order to measure the target mirror 2, a mirror bracket provided with the target mirror 2 is manufactured by manufacturing a stand having the same shape as the satellite nozzle in a place where the ground of the measurement site is even and not affected by internal and external vibrations. Attach the) to perform the measurement.

그러나 지면이 고르지 않고 내·외부 진동에 노출되어 있는 곳에서는 정반 위에 미러 브라켓(1)을 고정시키고 측정을 수행한다.However, where the ground is uneven and exposed to internal and external vibrations, the mirror bracket 1 is fixed on the surface plate and measurement is performed.

타켓 미러(2)를 얼라인먼트 측정에 사용하기 위해서는 타켓 미러(2)가 미러 브라켓(1)에 완전 고정되어 노즐부(17)에 설치된 상태에서 외부의 충격 등에도 타켓 미러(2) 측정값이 동일하여야 한다.In order to use the target mirror (2) for alignment measurement, the target mirror (2) is completely fixed to the mirror bracket (1) and the target mirror (2) measured values are the same even when the external mirror or the like is installed in the nozzle unit (17). shall.

특히, 노즐부(17) 얼라인먼트 측정시 측정치의 정확성을 위하여 타켓 미러(2)를 180°회전하면서 2회 측정하고 두 값이 요구되는 정확도 내 있는지를 검토하고, 평균값을 구하여 최종 측정치로 결정한다.In particular, in order to measure the accuracy of the measured value at the time of the alignment of the nozzle unit 17, the target mirror 2 is measured twice while rotating by 180 ° and the two values are examined to determine whether they are within the required accuracy, and the average value is determined to determine the final measured value.

이를 위하여 타켓 미러(2) 제작시 동일한 방법으로 측정을 반복하면서, 타켓 미러(2)의 측정값이 요구되는 노즐부(17) 얼라인먼트 정확도 보다 10∼100배 범위 내에 들어가도록 한다.To this end, while the measurement is repeated in the same manner when the target mirror 2 is manufactured, the measurement value of the target mirror 2 is set to be within a range of 10 to 100 times the alignment accuracy of the nozzle unit 17 required.

타켓 미러(2)의 측정은 데오도라이트(Theodolite)를 사용하여 측정하는 것으로 먼저 데오도라이트와 타켓 미러(2)를 동일한 수평선상에 위치시키고, 데오도라이트에서 발생되는 불빛이 타켓 미러(2)에 정반사되도록 데오도라이트를 상·하·좌·우로 조정한다.The target mirror 2 is measured by using theodolite. First, the deodorite and the target mirror 2 are placed on the same horizontal line, and the light generated by the deodorite is displayed on the target mirror 2. Adjust the deodorite up, down, left, or right so that it is specularly reflected on the

타켓 미러(2)에 정반사된 빛이 데오도라이트에 포착되면 상의 초점을 맞추고데오도라이트 내 십자선에 맞춘다.When the light reflected by the target mirror 2 is captured by the deodorite, the image is focused and the crosshairs within the deodorite are focused.

이때, 데오도라이트의 수평각과 수직 각을 읽는다.At this time, the horizontal angle and the vertical angle of the deodorite are read.

설치된 미러 브라켓(1)을 180°회전시켜 데오도라이트를 사용하여 타켓 미러(2)의 측정을 반복한다.The installed mirror bracket 1 is rotated 180 ° and the measurement of the target mirror 2 is repeated using the deodorite.

상기와 같이 타켓 미러(2)에 정반사된 빛을 데오도라이트의 수평각과 수직각을 읽는 방법을 수행하고 미러 브라켓(1)을 180°회전시켜 다시 수평각과 수직각을 읽는 방법을 통하여 측정된 값을 비교한다.The value measured through the method of reading the horizontal and vertical angle of the deodorite for the light reflected on the target mirror 2 as described above, and rotating the mirror bracket 1 by 180 ° to read the horizontal and vertical angle again. Compare

측정된 값을 비교하여 정확도 범위를 벗어나 있으면, 미러 브라켓(1) 후면의 미러 높이조절 나사(6)를 회전시켜 타켓 미러(2)의 방향(위치와 높이)을 조정한다.If the measured value is out of the accuracy range, the direction (position and height) of the target mirror 2 is adjusted by rotating the mirror height adjusting screw 6 on the rear side of the mirror bracket 1.

다시 2회 측정을 반복하여 두 값의 측정치가 정확도 범위에 들어오도록 한다.Repeat the two measurements again so that the measurements of the two values fall within the accuracy range.

타켓 미러(2)의 측정치가 정확도 범위에 들어오면 주사기에 실리콘 접착제 (8)를 넣어 타켓 미러(2)의 외측에 형성된 미러 삽입홈(7)과의 공간에 주사하여 타켓 미러(2)의 위치와 높이가 변하지 않도록 조심하면서 타켓 미러(2)를 미러 삽입홈(7)에 고정시켜 미러 브라켓(1)과 일체형이 되도록 한다.When the measurement value of the target mirror 2 is within the accuracy range, the silicone adhesive 8 is inserted into the syringe and scanned into the space with the mirror insertion groove 7 formed on the outside of the target mirror 2 to position the target mirror 2. Be careful not to change the height and the target mirror (2) to the mirror insertion groove (7) to be integral with the mirror bracket (1).

실리콘 접착제(8)가 완전히 경화된 것을 확인하고, 다시 한번 타켓 미러(2)의 정확도를 측정한다.It is confirmed that the silicone adhesive 8 is completely cured and once again the accuracy of the target mirror 2 is measured.

측정치가 정확도의 범위를 벗어나면, 실리콘 접착제(8)를 제거한 후 다시 미러 높이조절 나사(6)로 타켓 미러(2)의 방향을 조정하고 측정하는 방법을 측정치가 정확도 범위 내에 들어갈 때까지 반복 수행한다.If the measurement is out of the range of accuracy, remove the silicone adhesive (8) and then repeat the method of adjusting the direction of the target mirror (2) with the mirror height adjusting screw (6) until the measurement is within the accuracy range. do.

이때 측정치가 정확도의 범위에 들어가면 위성체 추진체 분사장치(10)의 노즐부(17)에 삽입고정 돌기(3)를 이용하여 삽입하여 얼라인먼트에 사용한다.At this time, when the measured value is within the range of accuracy, it is inserted into the nozzle unit 17 of the satellite propellant injector 10 using the insertion fixing protrusion 3 and used for alignment.

여기서 노즐부(17)에 삽입고정 돌기(3)가 삽입되면 외측의 오링 삽입홈(4)에 삽입된 스프링 타입의 오링(5)이 압박하여 절개홈(9)의 간격으로 조여지도록 하여 고정위치를 고수하도록 한다.In this case, when the insertion fixing protrusion 3 is inserted into the nozzle unit 17, the spring-type O-ring 5 inserted into the O-ring insertion groove 4 on the outside is pressed to be tightened at intervals of the incision groove 9. Stick to.

본 발명은 위성체의 자세제어용 장치인 추진체 분사장치 노즐에 대한 얼라인먼트를 측정하기 위한 미러 브라켓을 제공하는 것이다.The present invention provides a mirror bracket for measuring alignment with respect to a propellant injector nozzle which is a device for controlling the attitude of a satellite.

본 발명은 미러 브라켓의 일측으로 타켓 미러가 설치되고 추진체 분사장치의 노즐부에 안정되게 설치되어 정확한 얼라인먼트를 측정하도록 하는 것이다.The present invention is to install a target mirror to one side of the mirror bracket and to be installed stably in the nozzle portion of the propellant injector to measure the correct alignment.

본 발명은 미러 브라켓에 타켓 미러를 측정치가 정확도의 범위에 들어오도록 고정시키므로 얼라인먼트의 측정값을 신뢰할 수 있도록 하는 것이다.The present invention fixes the target mirror to the mirror bracket so that the measured value is within the range of accuracy, so that the measured value of the alignment can be reliably.

본 발명은 인공위성 추진체 분사장치 노즐부의 얼라인먼트 측정뿐만 아니라 방향성이 요구되는 항공기 및 인공위성의 자세제어용 센서의 얼라인먼트 측정이나 3차원 좌표의 측정시 동일한 방법으로 사용할 수 있는 것이다.The present invention can be used in the same way in the alignment measurement of the attitude control sensor of the aircraft and the satellite and the measurement of the three-dimensional coordinates as well as the alignment measurement of the satellite propellant injector nozzle unit.

Claims (3)

타켓 미러(2)가 삽입되는 미러 삽입홈(7)에서 실리콘 접착제(8)로 고정되며, 반대편으로 절개홈(9)이 형성된 삽입고정 돌기(3)를 갖고, 타켓미러(2)를 미러 높이조절 나사(6)를 설치하여 높이를 조절하도록 하는 미러 브라켓(1)으로 인공위성 추진체 분사장치의 노즐부에서 얼라인먼트를 측정함에 있어서,The target mirror 2 is fixed with a silicone adhesive 8 in the mirror insertion groove 7 into which the target mirror 2 is inserted, and has an insertion fixing protrusion 3 formed with an incision groove 9 on the opposite side, and the target mirror 2 is mirror-high. In measuring the alignment at the nozzle part of the satellite propellant injector with the mirror bracket 1 for adjusting the height by installing the adjusting screw 6, 상기 삽입고정 돌기(3)의 외측에 오링 삽입홈(4)을 형성하여 스프링형의 오링(5)을 삽입하며, 미러 삽입홈(7)이 타켓 미러(2)의 지름보다 5㎜ 정도 크게 성형하여 실리콘 접착제(8)로 고정되도록함을 특징으로 하는 위성체 추진장치 얼라인먼트 측정용 타켓 미러의 고정장치.O-ring insertion groove 4 is formed on the outside of the insertion fixing projection 3 to insert the spring-shaped O-ring 5, and the mirror insertion groove 7 is formed to be about 5 mm larger than the diameter of the target mirror 2. Fixing device of the target mirror for satellite propulsion alignment alignment measurement, characterized in that to be fixed by a silicone adhesive (8). 삭제delete 삭제delete
KR10-2000-0046947A 2000-08-14 2000-08-14 Target Mirror Fixation Equipment for Alignment Measurement of Spacecraft Propulsion Module KR100414689B1 (en)

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KR100445676B1 (en) * 2002-06-04 2004-08-21 한국항공우주연구원 a
KR101134111B1 (en) * 2009-12-04 2012-04-09 한국항공우주연구원 Cubic mirror fixation equipment for alignment measurement of thruster
KR101310059B1 (en) * 2012-08-06 2013-10-14 한국항공우주연구원 Thruster nozzle of thrust direction measurement device and method of measurement direction

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