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    • 2. 发明公开
    • 리플전압 측정방법, 리플전압 측정회로 및 이를 구비하는측정장치
    • 用于测量花纹电压的方法及其电路及其装置
    • KR1020080057006A
    • 2008-06-24
    • KR1020060130294
    • 2006-12-19
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 이강우허일봉이성희
    • G01R19/165G01R13/22
    • G01R19/16585G01R19/0023G01R27/02H02M3/07
    • A ripple voltage measuring method, a ripple voltage measuring circuit, and a measuring apparatus using the circuit are provided to accurately analyze a ripple component in real-time by using an amplifier and a true RMS converter. A ripple voltage measuring circuit includes a first amplifier(210), a true RMS(Root Mean Square) converter(250), an amplifier(220), a third amplifier(230), and a fourth amplifier(240). The first amplifier receives a voltage signal, which is inputted from an input terminal(260). The true RMS converter extracts a DC component from an output from the first amplifier. The second amplifier inverts an output from the true RMS converter. The third amplifier adds the output signals from the first and second amplifiers and inverts the added result. The fourth amplifier inverts and amplifies the output from the third amplifier and outputs the result through an output terminal(262).
    • 提供纹波电压测量方法,纹波电压测量电路和使用该电路的测量装置,以通过使用放大器和真有效值转换器来实时精确地分析纹波分量。 纹波电压测量电路包括第一放大器(210),真有效值(均方根)转换器(250),放大器(220),第三放大器(230)和第四放大器(240)。 第一放大器接收从输入端子(260)输入的电压信号。 真有效值转换器从第一放大器的输出中提取直流分量。 第二个放大器反转真有效值转换器的输出。 第三放大器将来自第一和第二放大器的输出信号相加,并使相加的结果反转。 第四放大器反相放大第三放大器的输出,并通过输出端(262)输出结果。
    • 3. 发明公开
    • 광신호 송신을 이용한 과전류 감지회로 및 감지방법
    • 使用光信号传输电流传感的电路和方法
    • KR1020100073853A
    • 2010-07-01
    • KR1020080132634
    • 2008-12-23
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 이성희허일봉
    • H02H3/08H02H3/02
    • PURPOSE: A circuit for sensing an over-current and a method thereof are provided to improve the stability of an electronic device by safely sensing an over-current flowing in a high voltage line more than 20kV. CONSTITUTION: An over-current sensing circuit comprises an optical signal generator(100) and an output part(200). The optical signal generator generates an optical signal by detecting an over current flowing in a current line of an electronic device. The optical signal generator comprises a current sense resistor(Rs) and an optical signal transmission module(Q1). The current sense resistor is arranged in the current line. The optical signal transmission module is turned on in order to transmit an optical signal when a voltage applied to the current sense resistor is greater than an operation threshold voltage. An output part generates an output due to a power current after receiving the optical signal.
    • 目的:提供一种用于感应过电流的电路及其方法,以通过安全地感测在超过20kV的高压线路中流动的过电流来提高电子设备的稳定性。 构成:过电流感测电路包括光信号发生器(100)和输出部分(200)。 光信号发生器通过检测在电子设备的当前行中流过的过电流来产生光信号。 光信号发生器包括电流检测电阻(Rs)和光信号传输模块(Q1)。 电流检测电阻器布置在当前行中。 当施加到电流检测电阻器的电压大于操作阈值电压时,光信号传输模块被接通以便发送光信号。 输出部分在接收到光信号后由于电力电流而产生输出。
    • 7. 发明授权
    • 강판의 초정밀 두께측정장치 및 방법
    • (精密装置和厚度测量方法
    • KR100804396B1
    • 2008-02-15
    • KR1020060110504
    • 2006-11-09
    • 주식회사 포스코
    • 이국기이강우허일봉배효열
    • G01B15/02
    • An apparatus and a method for precisely measuring the thickness of a steel plate are provided to adjust output of a high voltage supplied to an ion-chamber and an amplification rate of a fine current value using a computer and a feedback controller. An apparatus for precisely measuring the thickness of a steel plate includes a plurality of ion-chambers(32a-32d), a computer(60), a LAN cable(80), and a detector controller(100). The ion-chambers and the detector controller are disposed in a carrier of the apparatus. The computer is installed at the exterior of the carrier. The LAN cable communicates the computer with the detector controller. Electrical signals between the ion-chambers and the detector controller are completely and electrically isolated from a fine current supplied from the ion chambers to obtain data depending on measured thickness of the steel plate.
    • 提供一种用于精确测量钢板厚度的装置和方法,以使用计算机和反馈控制器来调节提供给离子室的高电压的输出和微细电流值的放大率。 用于精确测量钢板厚度的装置包括多个离子室(32a-32d),计算机(60),LAN电缆(80)和检测器控制器(100)。 离子室和检测器控制器设置在设备的载体中。 计算机安装在承运人的外部。 LAN电缆将计算机与检测器控制器通信。 离子室和检测器控制器之间的电信号与从离子室提供的细电流完全和电隔离,以根据钢板的测量厚度获得数据。
    • 8. 发明公开
    • 방사선을 이용한 벨트 콘베어 계량장치
    • 用于测量皮带输送机的装置,其中包括安装在下部分皮带的辐射源
    • KR1020040107207A
    • 2004-12-20
    • KR1020030038155
    • 2003-06-13
    • 주식회사 포스코
    • 지환김경상허일봉신선휴
    • G01G11/14
    • PURPOSE: An apparatus for measuring a belt conveyor is provided to stably feed raw materials and to precisely measure weights of raw materials by removing physical and mechanical errors of the raw materials. CONSTITUTION: An apparatus for measuring a belt conveyor includes a radiation source(200), a multiple channel detecting section(210) and a weight calculating section(230). The radiation source(200) is installed at a lower portion of a belt(100) for conveying a raw material(150). The multiple channel detecting section(210) includes plural ion chambers(211), which are aligned in series widthwise along the belt(100) so as to detect radiation discharged from the radiation source(200). The weight calculating section(230) calculates weights of the belt and the raw material.
    • 目的:提供一种用于测量皮带输送机的设备,通过消除原材料的物理和机械误差,稳定地进给原料并精确测量原料的重量。 构成:用于测量带式输送机的装置包括辐射源(200),多通道检测部分(210)和重量计算部分(230)。 辐射源(200)安装在用于输送原料(150)的带(100)的下部。 多通道检测部(210)包括多个离子室(211),沿离带(100)沿宽度方向排列成一列,以便检测从辐射源(200)放出的辐射。 重量计算部(230)计算带和原料的重量。
    • 9. 发明公开
    • CCD 카메라를 이용한 두께 측정장치
    • 电荷耦合器件摄像机测量装置
    • KR1020090059671A
    • 2009-06-11
    • KR1020070126654
    • 2007-12-07
    • 주식회사 포스코
    • 허일봉배효열백효석이국기이강우조민호
    • G01B15/02G01B15/00
    • A thickness measuring apparatus using a CCD(Charge Coupled Device) camera is provided to measure the radiation emitted from an emitting device by using an image sensor, thereby reducing the measuring cost. A thickness measuring apparatus(1) comprises a radiation emitting unit(10), a scintillator(30) generating flash by the emission of radiation in the radiation emitting unit, a CCD camera(50) in which the flash generated from the scintillator enters, and a controller(70) which computes the measured thickness value from an image captured by the CCD camera. The controller converts the pixel value measured by the CCD camera into electric charge so as to measure the thickness of a strip. A signal processing unit(71) including an A/D converter circuit is connected to the controller.
    • 提供使用CCD(电荷耦合器件)照相机的厚度测量装置,以通过使用图像传感器来测量从发射装置发射的辐射,从而降低测量成本。 厚度测量装置(1)包括辐射发射单元(10),通过辐射发射单元中的辐射产生闪光的闪烁体(30),其中从闪烁体产生的闪光进入其中的CCD照相机(50) 以及控制器(70),其从由CCD照相机拍摄的图像计算测量的厚度值。 控制器将由CCD摄像机测量的像素值转换为电荷,以测量条带的厚度。 包括A / D转换电路的信号处理单元(71)连接到控制器。