KR20010037428A - Correction apparatus for fluctuation pressure gauge using water tunnel - Google Patents

Correction apparatus for fluctuation pressure gauge using water tunnel Download PDF

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Publication number
KR20010037428A
KR20010037428A KR1019990044951A KR19990044951A KR20010037428A KR 20010037428 A KR20010037428 A KR 20010037428A KR 1019990044951 A KR1019990044951 A KR 1019990044951A KR 19990044951 A KR19990044951 A KR 19990044951A KR 20010037428 A KR20010037428 A KR 20010037428A
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KR
South Korea
Prior art keywords
pressure gauge
water tunnel
pressure
sensor
propeller
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Application number
KR1019990044951A
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Korean (ko)
Inventor
강관형
김진학
한재문
Original Assignee
김징완
삼성중공업 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.)
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Application filed by 김징완, 삼성중공업 주식회사 filed Critical 김징완
Priority to KR1019990044951A priority Critical patent/KR20010037428A/en
Publication of KR20010037428A publication Critical patent/KR20010037428A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers

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

Abstract

PURPOSE: A variable pressure gauge calibrating device by using a water tunnel is provided to conveniently obtain the pressure more than 2GPa in a water tunnel for testing a model ship, thereby conveniently calibrating the variable pressure gauge. CONSTITUTION: A variable pressure gauge calibrating device includes a reference sensor(120) and a calibration sensor(130) mounted in the vicinity of one of the upper, lower, right and left parts of a propeller(110) of a propelling device for a ship in a water tunnel(100) so that the pressure more than 2GPa is conveniently obtained in the water tunnel for testing a model ship, wherein the reference sensor and the calibration sensor are mounted at the nearest position without any pressure difference. When the propeller rotates at a high speed, the sensors sense the pressure generated around the propeller and the sensed values are compared with each other to calibrate the variable pressure gauge.

Description

워터터널을 이용한 변동압력계 보정장치{Correction apparatus for fluctuation pressure gauge using water tunnel}Calibration apparatus for fluctuation pressure gauge using water tunnel}

본 발명은 워터터널을 이용한 변동압력계 보정장치에 관한 것으로, 상세하게는 고압력을 측정하는 변동압력계의 충분한 세기의 압력을 손쉽게 얻을 수 있도록 하여 변동압력계를 간단하고 편리하게 보정할 수 있도록 하는 워터터널을 이용한 변동압력계 보정장치에 관한 것이다.The present invention relates to a fluctuation manometer correction device using a water tunnel, and more particularly, to a water tunnel for easily and conveniently correcting the fluctuation pressure gauge by easily obtaining a sufficient strength of the fluctuation pressure gauge for measuring high pressure It relates to a variable pressure gauge correction device used.

일반적으로 압력계는 기체 또는 액체의 압력을 측정하는 것으로 많은 종류의 압력계가 개발되어 있으며 측정원리나 구조의 차이에 따라, 또는 용도에 따라 여러 가지 형식이 있다.In general, a pressure gauge measures the pressure of a gas or a liquid, and many types of pressure gauges have been developed. There are various types of pressure gauges depending on the principle of measurement, structure, or purpose.

이 압력계들은 수증기압, 유압, 공기압, 수압 등을 이용하는 광범위한 산업기계뿐만 아니라 유체를 취급하는 모든 분야에서 유체 공정의 계측, 관리, 제어 등의 목적에 다양하게 사용되고 있다.These pressure gauges are widely used for the measurement, management, and control of fluid processes in all fields of fluid handling, as well as a wide range of industrial machines using water vapor pressure, hydraulic pressure, air pressure, hydraulic pressure, and the like.

대기압 측정에서는 기상관측용이나 항공용 계기로서, 유량, 유속, 액면, 고도 등의 유체량 측정에서의 보조계기로서 비교적 정밀도가 높은 압력계가 필요하다.In atmospheric pressure measurement, as a gauge for meteorological observation or aviation, a pressure gauge with a relatively high precision is required as an auxiliary instrument for measuring the amount of fluid such as flow rate, flow velocity, liquid level, and altitude.

이러한 압력계의 측정범위는 진공영역에서부터 약 2GPa까지가 일반적이다. 또한 압력계는 외력을 강도를 전압값으로 읽고 표시하여 그 압력의 세기를 측정하여 디스플레이 하는 것이 일반적이다.The measuring range of such a pressure gauge is generally from the vacuum range to about 2 GPa. In addition, the pressure gauge generally reads and displays the external force as a voltage value and measures and displays the strength of the pressure.

그러나 모형선박 시험용 워터터널에 사용되는 변동압력계는 계측범위가 최고 2000Pa 이상인 것으로 변동압력계를 보정하고자 하는 경우 이에 적당한 고압력을 간편하게 얻을 수 있는 소스(source)가 없어 보정하기 매우 까다롭고 불편한 문제점이 있었다.However, the variable pressure gauge used in the model ship test water tunnel has a measurement range of up to 2000 Pa or more, and there is no source that can easily obtain a suitable high pressure.

따라서 본 발명의 주 목적은 모형선박 시험용 워터터널의 내부에서 2000Pa이상의 압력을 간편하게 얻을 수 있도록 하여 변동압력계를 손쉽게 보정할 수 있도록 하는 데 있다.Therefore, the main object of the present invention is to make it easy to obtain a pressure of 2000Pa or more in the water tunnel for model ship test to easily calibrate the variable pressure gauge.

도 1 은 본 발명의 변동압력 보정을 위한 기준 센서와 보정하고자 하는 센서의 압력과 전압을 나타낸 그래프.1 is a graph showing the pressure and voltage of the reference sensor and the sensor to be corrected for the variable pressure correction of the present invention.

도 2 는 본 발명의 변동압력계 보정장치를 나타낸 개략도.Figure 2 is a schematic diagram showing a pressure gauge correction device of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

100; 워터터널 110; 프로펠러100; Water tunnel 110; prop

120; 기준센서 130; 보정센서120; Reference sensor 130; Calibration sensor

위와 같은 목적을 달성하기 위하여 본 발명의 워터터널을 이용한 변동압력계 보정장치는 워터터널의 내부에 선박용 추진장치를 설치하되 프로펠러 부분의 상측에 근접되게 기준센서와 보정센서를 설치하여 구성함을 그 기술적 구성상의 기본 특징으로 한다.In order to achieve the above object, the variable pressure gauge correction apparatus using the water tunnel of the present invention is installed by installing a propulsion device for ships inside the water tunnel, but the reference sensor and the correction sensor is installed in close proximity to the upper side of the propeller portion It is a basic characteristic on configuration.

위와 같이 구성된 본 발명의 바람직한 실시 예를 첨부된 도면을 참조하면서 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above are as follows.

도 1 은 본 발명의 변동압력 보정을 위한 기준 센서와 보정하고자 하는 센서의 압력과 전압을 나타낸 그래프이고, 도 2 는 본 발명의 변동압력계 보정장치를 나타낸 개략도이다.1 is a graph showing the pressure and voltage of the reference sensor and the sensor to be corrected for the variable pressure correction of the present invention, Figure 2 is a schematic diagram showing a pressure gauge correction device of the present invention.

도 1 과 도 2 에 나타낸 바와 같이, 본 발명의 워터터널(100)을 이용한 변동압력계 보정장치는 워터터널(100)의 내부에 선박용 추진장치를 설치하되 추진장치의 프로펠러(110) 부분의 상측에 근접되게 기준센서(120)와 보정센서(130)를 설치하여 구성한다.As shown in Figures 1 and 2, the variable pressure gauge correction device using the water tunnel 100 of the present invention is installed in the water tunnel 100 of the ship propulsion device on the upper side of the propeller 110 of the propulsion device The reference sensor 120 and the correction sensor 130 are installed in close proximity.

상기 기준센서(120)와 보정센서(130)는 최대한 근접되게 설치함이 보정의 정확도를 위하여 바람직하다.The reference sensor 120 and the correction sensor 130 is preferably installed as close as possible for the accuracy of the correction.

이러한 본 발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention as follows.

워터터널(100)의 내부에 선박용 추진장치를 설치하되 추진장치의 프로펠러(110) 부분의 상측이나 측방 또는 하측에 기준센서(120)와 보정센서(130)를 설치한다.The ship propulsion unit is installed in the water tunnel 100, but the reference sensor 120 and the correction sensor 130 are installed on the upper side, the side, or the lower side of the propeller 110 of the propulsion unit.

이때, 기준센서(120)와 보정센서(130)는 최대한 근접되게 설치하여 압력차가 없도록 한다.At this time, the reference sensor 120 and the correction sensor 130 is installed as close as possible so that there is no pressure difference.

여기서 선박용 추진장치를 구동시키면 프로펠러(110)가 고속 회전하게 되고 이로 인하여 프로펠러의 주변의 압력이 크게 상승하게 되면 기준센서(120)와 보정센서(130)에서 이 압력을 센싱하게 된다.The propeller 110 is rotated at a high speed when the propulsion device for the ship is driven. When the pressure around the propeller is greatly increased, the pressure is sensed by the reference sensor 120 and the correction sensor 130.

도 1 과 같이, 센싱된 압력은 이미 보정된 상태의 기준센서(120)의 압력값과 보정센서(130)에서 센싱된 전압값을 비교하여 변동압력계의 보정하도록 하므로 간편하고 편리하게 고압력에서 변동압력계를 정확하게 보정할 수 있다.As shown in FIG. 1, the sensed pressure compares the pressure value of the reference sensor 120 and the voltage value sensed by the correction sensor 130 in the already corrected state so as to correct the variable pressure gauge so that the pressure gauge changes at high pressure simply and conveniently. Can be corrected accurately.

이상에서 살펴본 바와 같이, 본 발명의 워터터널(100)을 이용한 변동압력계 보정장치는 워터터널(100)의 내부에 선박용 추진장치를 설치하되 추진장치의 프로펠러(110) 부분의 상측이나 좌우측 또는 하측에 근접되게 기준센서(120)와 보정센서(130)를 설치하여 구성하므로 모형선박 시험용 워터터널의 내부에서 2000Pa이상의 압력을 간편하게 얻을 수 있어 간편하고 편리하게 변동압력계의 보정을 실시할 수 있는 효과가 있다.As described above, the variable pressure gauge correction device using the water tunnel 100 of the present invention is installed on the inside of the water tunnel 100, the propulsion device for ships on the upper side, left and right or lower side of the propeller 110 portion of the propulsion device Since the reference sensor 120 and the correction sensor 130 are installed in close proximity to each other, the pressure of 2000 Pa or more can be easily obtained from inside the water tunnel for model ship test, so that the pressure gauge can be calibrated simply and conveniently. .

Claims (1)

워터터널의 내부에 선박용 추진장치를 설치하되 선박용 추진장치의 프로펠러 부분의 근접되게 기준센서와 보정센서를 설치하여 구성한 것을 특징으로 하는 워터터널을 이용한 변동압력계 보정장치.A variable pressure gauge correction device using a water tunnel, characterized in that the ship propulsion device is installed inside the water tunnel, but the reference sensor and the correction sensor are installed in close proximity to the propeller portion of the ship propulsion device.
KR1019990044951A 1999-10-16 1999-10-16 Correction apparatus for fluctuation pressure gauge using water tunnel KR20010037428A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628054B2 (en) * 2006-11-09 2009-12-08 Abbott Medical Optics Inc. Calibration utility for non-linear measurement system
US8424362B2 (en) 2006-11-09 2013-04-23 Abbott Medical Optics Inc. Methods and apparatus for calibrating a vacuum component of a phacoemulsification system
CN104374544A (en) * 2014-12-10 2015-02-25 中国人民解放军海军工程大学 Asymmetric measuring device for propeller pulsating pressure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990084267A (en) * 1998-05-02 1999-12-06 최동환 Elastic pressure gauge automatic calibration device and automatic calibration method
KR100325639B1 (en) * 1999-10-16 2002-03-06 김징완 Apparatus for measuring back current using Particle image velocimetry

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990084267A (en) * 1998-05-02 1999-12-06 최동환 Elastic pressure gauge automatic calibration device and automatic calibration method
KR100325639B1 (en) * 1999-10-16 2002-03-06 김징완 Apparatus for measuring back current using Particle image velocimetry

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628054B2 (en) * 2006-11-09 2009-12-08 Abbott Medical Optics Inc. Calibration utility for non-linear measurement system
US8424362B2 (en) 2006-11-09 2013-04-23 Abbott Medical Optics Inc. Methods and apparatus for calibrating a vacuum component of a phacoemulsification system
CN104374544A (en) * 2014-12-10 2015-02-25 中国人民解放军海军工程大学 Asymmetric measuring device for propeller pulsating pressure

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