KR20030081799A - Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor - Google Patents

Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor Download PDF

Info

Publication number
KR20030081799A
KR20030081799A KR1020020020204A KR20020020204A KR20030081799A KR 20030081799 A KR20030081799 A KR 20030081799A KR 1020020020204 A KR1020020020204 A KR 1020020020204A KR 20020020204 A KR20020020204 A KR 20020020204A KR 20030081799 A KR20030081799 A KR 20030081799A
Authority
KR
South Korea
Prior art keywords
pressure sensor
hull
pressure
base plate
ship
Prior art date
Application number
KR1020020020204A
Other languages
Korean (ko)
Inventor
박진화
배종국
김종수
Original Assignee
현대중공업 주식회사
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 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020020020204A priority Critical patent/KR20030081799A/en
Publication of KR20030081799A publication Critical patent/KR20030081799A/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE: A pressure measuring device for a ship is provided to effectively measure exciting force of a propeller applied to the ship by securely attaching the variable pressure measuring device to an outer portion of the ship using a permanent magnet. CONSTITUTION: A variable pressure measuring device for a ship includes a pressure sensor(1) for measuring pressure of a propeller. The pressure sensor(1) is mounted on a base plate(2) formed with a plurality of holes(5), into which bolts are screw-coupled. A permanent magnet(3) is installed at a lower portion of the base plate(2). A signal withdrawing hole is formed in the base plate(2). A measuring signal withdrawing line is provided in the signal withdrawing hole. The measuring signal withdrawing line is connected to the pressure sensor(1). The pressure sensor(1) is fixed by a ceramic metal coating section(6). An elastomer coating section(7) is formed on the ceramic metal coating section(6).

Description

마그네틱 압력센서를 이용한 선체 변동압력 측정장치{Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor}Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor}

본 발명은 마그네틱 압력센서를 이용한 선체 변동압력 측정장치에 관한 것으로, 보다 상세하게는 선박의 프로펠러로부터 발생되어 선체에 작용하는 변동압력을 측정하기 위해 선체 외판에 압력센서를 부착 시 마그네틱을 이용하여 견고히 부착하여 센서의 위치변동이 용이하고, 선체에 구조적 손상을 주지 않는 선체 변동압력 측정장치에 관한 것이다.The present invention relates to a hull fluctuation pressure measuring apparatus using a magnetic pressure sensor, and more particularly, by using a magnetic when the pressure sensor is attached to the hull shell to measure the fluctuation pressure generated from the propeller of the ship acting on the hull. The present invention relates to a hull fluctuation pressure measuring device that is easy to change position of the sensor by attaching and does not cause structural damage to the hull.

선박의 추진기인 프로펠러가 회전하면서 수반되는 주기적인 유동현상과 캐비테이션(Cavitation)에 의해 발생하는 변동압력은 선박의 진동을 유발시키는 주요 기진원이므로 저진동 선박 건조를 위해서는 변동압력의 크기에 대한 정확한 평가가 필요하고, 이를 위해서는 실선에서의 변동압력 계측이 필수적이다.The fluctuation pressure generated by cyclic phenomena and cavitation accompanied by the propeller, the propeller of the ship, is the main source of vibration causing the ship's vibration. It is necessary to measure the fluctuation pressure in the solid line.

세계 유수의 선박관련 연구기관들은 변동압력 크기 평가와 관련하여 수치해석과 모형실험을 수행해 오고 있고, 기확보된 실선계측결과와의 비교를 통해 모형선-실선 상관관계를 정립하고 있으나, 실선계측실적이 적기 때문에 연구성과가 상당히 미미한 수준에 머무르고 있다. 이것은 선체 외판에 기계적 가공을 하여 구멍을 뚫고 압력센서를 설치하는 기존의 변동압력 계측방법이 가지고 있는 한계에 기인한 것으로, 종래에는 선체 외판 계측점에 기계적인 홀 가공을 한 후, 센서를 설치함으로서 계측위치의 변경이 용이하지 못하고, 선체의 구조적 안전성이 저하되는 문제점으로 인해, 연구목적의 선박에만 극히 제한적으로 적용되는 폐단이 발생되었다.The world's leading ship-related research institutes have been conducting numerical analysis and model experiments in relation to the evaluation of the magnitude of the fluctuation pressure and establishing model-solid correlations by comparing them with established solid-line measurement results. Because of this small amount, the research results are still insignificant. This is due to the limitations of the conventional fluctuation pressure measuring method, in which the hull shell is mechanically drilled and drilled, and a pressure sensor is installed.In the past, the measurement is performed by installing a sensor after mechanical hole machining at the hull shell measurement point. Due to the problem that the change of position is not easy and the structural safety of the hull is deteriorated, the closed end is applied to the vessel of research purpose very limitedly.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출되는 것으로, 그 목적은 선체 외판에 홀을 뚫지 않고 영구자석에 의해 선체에 견고히 부착되어 구조적인 안전성을 도모할 수 있고, 혹독한 해상환경에서도 프로펠러에 의한 기진력이 선체에 미치는 변동압력의 효율적인 계측이 가능하며, 설치가 용이하여 다점 계측시에도 편의를 제공할 수 있는 선체 변동압력 측정장치를 제공함에 있다.The present invention is devised to solve the conventional problems as described above, the object of which is to secure the structural safety by being firmly attached to the hull by a permanent magnet without drilling holes in the hull shell, propeller even in harsh marine environment It is possible to efficiently measure the fluctuation pressure caused by the vibration force on the hull, and to provide an easy hull fluctuation pressure measuring device that can provide convenience even in multi-point measurement.

상기와 같은 목적 달성을 위한 본 발명은 베이스 판의 상면에 압력센서가 설치되고, 그 저면에 영구자석이 설치되어 선체 외판에 영구자석에 의해 부착되므로서, 기계적 가공에 의한 홀이 불필요하여 선체의 구조적 안전성을 유지할 수 있으며, 센서의 위치변동이 용이하도록 구성되었다.The present invention for achieving the above object is a pressure sensor is installed on the upper surface of the base plate, a permanent magnet is installed on the bottom surface is attached to the hull outer plate by a permanent magnet, the hole by the mechanical processing is unnecessary, the hull of the hull Structural safety can be maintained and the sensor's position can be easily changed.

도 1 은 본 발명의 측면 구조도1 is a side structural view of the present invention

도 2 는 본 발명의 평면 구조도2 is a plan view of the present invention

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

(1) : 압력센서 (2) : 베이스 판(1): pressure sensor (2): base plate

(3) : 영구자석 (4) : 계측신호인출선(3): Permanent magnet (4): Measurement signal lead wire

(5) : 홀 (6) : 세라믹 메탈 코팅(5): hole (6): ceramic metal coating

(7) : 탄성중합체 코팅 (8) : 신호인출용 홈(7): Elastomer coating (8): Signal extraction groove

본 발명의 구성에 대해 첨부도면과 연계하여 설명하면 다음과 같다.Referring to the configuration of the present invention in conjunction with the accompanying drawings as follows.

도 1 은 본 발명의 측면 구조도를, 도 2 는 본 발명의 평면 구조도를 도시한 것으로, 본 발명은 프로펠러의 변동압력을 측정하는 압력센서(1)와, 상기 압력센서 (1)가 상면에 설치되는 베이스 판(2)과, 상기 베이스 판(2)의 저면에 설치되는 영구자석(3)으로 구성되었다.1 is a side structural view of the present invention, Figure 2 is a plan view showing the structure of the present invention, the present invention is a pressure sensor (1) for measuring the fluctuation pressure of the propeller, and the pressure sensor (1) is installed on the upper surface It consists of a base plate 2 and a permanent magnet (3) provided on the bottom of the base plate (2).

상기 베이스 판(2)의 상면에는 측면으로부터 압력센서(1)로 연결되는 신호인출용 홈(8)이 형성되고, 이 신호인출용 홈(8)을 통해 계측신호 인출선(4)이 설치되어 압력센서(1)에 연결된다.On the upper surface of the base plate (2) is formed a signal extraction groove (8) connected to the pressure sensor (1) from the side, and through the signal extraction groove (8) the measurement signal leader line (4) is provided It is connected to the pressure sensor (1).

또한, 선체표면에 본 발명을 부착시 영구자석(3)의 강력한 자력에 인한 충격 때문에 발생되는 센서의 파손을 방지하고, 철거를 용이하게 하기 위하여 베이스 판(2)의 둘래 끝단에는 나사부가 형성된 다수의 홀(5)이 형성되며, 이 홀(5)을 통해 미도시된 조정설치용 볼트가 설치되어 선체표면에 부착된 베이스 판(2)의 철거시 조정설치용 볼트를 조임으로서 베이스 판(2)을 용이하게 철거할 수 있도록 구성되었다.In addition, when the present invention is attached to the hull surface, a plurality of threaded portions are formed at the end of the base plate 2 to prevent breakage of the sensor caused by the impact due to the strong magnetic force of the permanent magnet 3 and to facilitate dismantling. Hole 5 is formed, and through the hole 5, the adjustment bolt is not shown, and the base plate 2 is tightened by tightening the adjustment bolt for removal of the base plate 2 attached to the hull surface. It is configured for easy removal.

이와 같이 영구자석(3)에 의해 선체의 표면에 부착되므로 자유로운 탈부착 및 다점 계측이 가능하게 되는 것이다.As such, since the permanent magnet 3 is attached to the surface of the hull, free detachment and multi-point measurement are possible.

상기 압력센서(1)는 프로펠러에서 발생하는 고압력과 캐비테이션에 의해 압력센서(1)가 이탈되는 것을 방지하기 위해 세라믹 메탈 코팅(6)으로 고정되고, 그 상단에 추가로 탄성중합체 코팅(7)을 하였다.The pressure sensor (1) is fixed with a ceramic metal coating (6) to prevent the pressure sensor (1) from being separated by the high pressure and cavitation generated in the propeller, the top of the elastomer coating (7) It was.

본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

상술한 바와 같이 본 발명은 기계적인 홀을 가공한 후 압력센서를 설치하여 계측하는 것에 비해 홀을 뚫지 않고 영구자석에 의해 선체에 견고하게 부착되므로서, 구조적인 안전성을 도모할 수 있고, 압력센서의 설치위치를 다양하게 변경할 수 있으므로 프로펠러에 의한 기진력이 선체에 미치는 변동압력의 효율적인 계측이 가능하며, 다점 계측시에도 편의를 제공할 수 있는 등의 효과가 있는 것이다.As described above, the present invention is structurally secured by permanent magnets and is attached to the hull by a permanent magnet without drilling a hole, compared to measuring and installing a pressure sensor after machining a mechanical hole. Since the installation position can be changed in various ways, it is possible to efficiently measure the fluctuation pressure of the propulsion force caused by the propeller on the hull, and provide convenience in multipoint measurement.

Claims (1)

프로펠러의 변동압력을 측정하는 압력센서(1)와,A pressure sensor 1 for measuring the fluctuation pressure of the propeller, 상기 압력센서(1)가 상면에 설치되고, 나사부가 형성되어 조정설치용 볼트가 설치되는 다수의 홀(5)이 형성된 베이스 판(2)과,A base plate (2) having a plurality of holes (5) in which the pressure sensor (1) is installed on an upper surface, and a threaded portion is formed and a bolt for adjustment installation is installed; 상기 베이스 판(2)의 저면에 설치된 영구자석(3)과,A permanent magnet 3 installed on the bottom of the base plate 2, 상기 베이스 판(2)에 형성된 신호인출용 홈(8)에 설치되어 압력센서(1)에 연결된 계측신호 인출선(4)으로 구성하되,It is composed of the measurement signal lead line 4 is installed in the signal extraction groove 8 formed in the base plate 2 and connected to the pressure sensor 1, 상기 압력센서(1)를 세라믹 메탈 코팅(6)으로 고정하고, 그 상단에 탄성중합체 코팅(7)을 하여 구성된 것을 특징으로 하는 마그네틱 압력센서를 이용한 선체 변동압력 측정장치.Fixing the pressure sensor (1) with a ceramic metal coating (6), the hull fluctuation pressure measuring apparatus using a magnetic pressure sensor, characterized in that configured on the top of the elastomeric coating (7).
KR1020020020204A 2002-04-13 2002-04-13 Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor KR20030081799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020020204A KR20030081799A (en) 2002-04-13 2002-04-13 Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020020204A KR20030081799A (en) 2002-04-13 2002-04-13 Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor

Publications (1)

Publication Number Publication Date
KR20030081799A true KR20030081799A (en) 2003-10-22

Family

ID=32378886

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020020204A KR20030081799A (en) 2002-04-13 2002-04-13 Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor

Country Status (1)

Country Link
KR (1) KR20030081799A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220009829A (en) 2020-07-16 2022-01-25 대우조선해양 주식회사 Standalone high capacity signal measuring apparatus
KR20220011442A (en) 2020-07-21 2022-01-28 대우조선해양 주식회사 Measuring device independently attachable to outside of hull
KR102376902B1 (en) * 2020-09-18 2022-03-22 대우조선해양 주식회사 Apparatus for measuring fluctuating pressure
KR102449486B1 (en) * 2022-06-24 2022-09-29 김동현 Marine propeller that prevents corrosion of hub due to galvanic effect and can detect blade damage during operation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220009829A (en) 2020-07-16 2022-01-25 대우조선해양 주식회사 Standalone high capacity signal measuring apparatus
KR20220011442A (en) 2020-07-21 2022-01-28 대우조선해양 주식회사 Measuring device independently attachable to outside of hull
KR102376902B1 (en) * 2020-09-18 2022-03-22 대우조선해양 주식회사 Apparatus for measuring fluctuating pressure
KR102449486B1 (en) * 2022-06-24 2022-09-29 김동현 Marine propeller that prevents corrosion of hub due to galvanic effect and can detect blade damage during operation

Similar Documents

Publication Publication Date Title
KR20030081799A (en) Apparatus for hull pressure fluctuation measurement using the magnetic pressure sensor
CN203427996U (en) Fixing device for acoustic transducer
US6435902B1 (en) Sensor mount
CN212473852U (en) Hull structure monitoring device
KR20110004268U (en) Apparatus for measuring of hull fluctuation pressure
CN211740210U (en) Detachable shipborne sailing ocean current measuring support
CN203544341U (en) Underwater acoustic transducer convenient to locate and mount
KR200378405Y1 (en) Measuring Apparatus for Ship
CN211716184U (en) Integral installation device of ocean detector
CN202793392U (en) Mounting frame capable of being conveniently mounted and guaranteeing depth-measuring energy converter rod to be vertical
CN210119268U (en) Liquid level sensor with high stability
CN113148001A (en) Adjustable echo detector support device
KR200294523Y1 (en) The Fixations Device for Equipment using Permanent Magnets
KR102376902B1 (en) Apparatus for measuring fluctuating pressure
KR20040099488A (en) A fixing apparatus for ADCP
CN213380142U (en) Single beam hull side suspension type quick installation frame
KR102376907B1 (en) Measuring device independently attachable to outside of hull
CN220525804U (en) Handheld water quality detector
CN110469317A (en) Pulley assembly and rotary drilling rig
CN218378196U (en) Connecting structure for electrical insulation isolation and ship
CN215413809U (en) Seabed base monitoring system
CN211741462U (en) Sonar detecting head
CN216044039U (en) Slim jar sensor mounting structure
CN108429208B (en) Cable vibration damper
CN220151706U (en) Stress monitoring type nut and stress monitoring equipment comprising same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application