Abstract:
PURPOSE: A current frequency transforming device, a device for assessing a device to be corrected, a method thereof, and a recording medium are provided to implement in a room temperature, not using a refrigerant. CONSTITUTION: A current input unit(100) receives the input of a current from a current source(10) providing a source current. A motor(200) includes a permanent magnet and a coil is rotated by the source current. An attenuator(300) generates a rotary friction coefficient proportional to the magnetic flux density of the motor. A frequency output unit(400) outputs the frequency which corresponds to the source current depending on the rotation of the motor. [Reference numerals] (100) Current input unit; (200) Motor; (300) Attenuator; (400) Frequency output unit
Abstract:
본 발명은 중에너지 이온빔 산란을 이용한 분광분석기에 관한 것으로서, 본 발명은 이온을 발생시키는 이온원(10); 이온을 평행빔으로 발생시키는 콜리메이터(collimator)(20); 평행빔을 가속화시키는 가속기(30); 가속된 이온빔을 펄스화하는 이온빔 펄스발생기(40); 펄스된 이온빔을 시편(1)으로 집속시키는 집속대물렌즈(50); 집속된 이온빔이 시편(1)으로부터 산란된 이온빔 펄스의 분광신호를 검출하는 검출기(60); 상기 검출기(60)에 의해 검출된 분광신호를 분석 처리하는 데이터 분석기(70); 를 포함하여 이루어지는 것을 특징으로 한다. 이에 따라 본 발명은 이온빔을 수 ㎛ 로 집속함으로써 미소영역의 측정이나 매핑이 가능하고, 고가의 스캐너가 필요없이 측정이 가능하며, 측정시간을 단축하여 분석시간을 단축할 수 있고, 구조가 간단하고 장치를 소형화할 수 있으며, 시간에 따른 이온빔의 산란 각도와 산란 위치를 정확하게 측정할 수 있고, 미소영역에 대한 3차원 조성 분포를 매핑할 수 있으며, 반사모드 또는 투과모드에서도 모두 측정이 가능하여 초박막 두께의 시편에 대한 정확한 원자구조를 분석할 수 있는 장점이 있다. 중에너지, 이온빔, 산란, 분광분석기, 집속, 3차원, 매핑
Abstract:
본 발명은 복소 전기용량 측정 장치에 관한 것으로, 보다 상세하게는 크기 및 위상이 다른 두 개의 독립적인 가변전압원과 저항을 이용하여 브릿지 법에 의해 복소 전기용량을 측정하는 복소 전기용량 측정 장치에 관한 것이다. 이를 위한 본 발명은 브릿지 법에 의한 복소 전기용량 측정 장치에 있어서, 전압이 인가되는 제 1 가변전압수단 및 제 2 가변전압수단, 저항, 및 전기용량이 측정되는 커패시터의 순으로 직렬 연결되어 폐루프를 형성하며 상기 제 1 가변전압수단 및 제 2 가변전압수단의 사이와 상기 저항 및 커패시터 사이에 병렬 연결되는 탐지수단을 포함하여 구성되는 특징이 있다. 커패시턴스, 전기용량, 위상, 브릿지
Abstract:
PURPOSE: A fluid thermostat without electro-magnetic interference is provided to exclude the electro-magnetic interference by separating a power part and a temperature control part generating an electromagnetic field with a chamber part. CONSTITUTION: A fluid thermostat without electro-magnetic interference comprises the following: a chamber part(10) with a temperature sensor measuring temperature of fluid and discharging the fluid; a fluid circulation connection pipe(20) connected to a chamber part and circulating the fluid; a temperature adjusting part(30) controlling a thermostat state of the fluid; a power part(50) supplying power to the temperature adjusting part; and a control part(40) controlling the temperature adjusting part and the power part.
Abstract:
PURPOSE: A deguasser apparatus for removing information stored in a recording media using magnetic and heating generating apparatus is provided to control the intensity of the magnetic filed according to a distance between magnetic and control the distance. CONSTITUTION: A deguasser apparatus for removing information stored in a recording media using magnetic and heating generating apparatus include a fixing plate(210), a moving plate(213), and thermo-generators. The fixing plate is fixed at the lower part of the deguasser apparatus. The first magnet and the second magnet are adhered to the fixing plate and moving plate. The thermo-generator provides the heat energy to the recording medium.
Abstract:
A method for calculating a variable value from a ratio value obtained by comparing variables of plural resistors, using trigonometry, or comparing variables of two resistors is provided to exclude the cost for movement and correction and to compute the desirable variable value directly in the site. A method for calculating a variable value from a ratio value obtained by comparing variables of plural resistors is composed of: an object selection step for choosing plural objects having stability and decomposition rate over accuracy of a variable value of the resistor to be measured(S10); a variable value calculating step for repeating a process for measuring the ratio value by choosing variable values X and S from plural objects and determining each final variable value by substituting the obtained ratio value for the ratio measuring formula(S20); a first repeated calculation step for designating a preceding number of the ratio values of two final places as alpha, a following number as beta, and the number of cases corresponding to alpha of plural measured ratio values, as [alpha/alpha'], selecting the number of cases satisfying the following inequality, alpha>alpha' or alpha beta' or beta
Abstract:
본 발명에 따른 지구자기장 상쇄 장치는 직류 및 시간에 따른 지구자기장의 변화량을 상쇄시켜 정밀한 저자기장을 발생시키고 자기장 변화에 비례하는 주파수의 차이를 이용하여 변화량을 상쇄시킴으로써 응답속도가 빠르고, 안정적으로 동작하는 효과가 있다. 지구자기장, 헬름홀쯔 코일, 위상비교부
Abstract:
The present invention relates to a method for preparing manganese-based nitride having nearly zero temperature coefficient of resistivity and more particularly, to the effective method for preparing manganese-based nitride expressed by the formula (1), wherein the manganese-based nitride, prepared by heating the stoichiometric mixture of Mn2N and Cu in an evacuated quartz tube, provides some advantages in that i) the use of the Mn2N compound as a reactant, the formation of impurities and nitrogen evaporation may be prevented, and ii) through nitrogen is tightly bonded between metals, the manganese-based nitride has extremely low (46 ppm/K) temperature coefficient of resistivity.
Abstract:
PURPOSE: A production method of manganese nitride, CuNMn3, in the cubic perovskite structure is provided to prevent the formation of impurity phases and give low temperature coefficient of resistance by using Mn2N as a reactant. CONSTITUTION: The production method of manganese nitride(CuNMn3), which is expressed by the formula of Mn2N + Cu -->CuNMn3, comprises the steps of: putting Mn2N and Cu mixed in a molar of 1.45-1.55 in a quartz tube; sealing in vacuum; heating to 800-900deg.C at a heating rate of 50deg.C/hr and holding for 40-60hrs. The resultant product, CuNMn3, has 40-50ppm/K of temperature coefficient of resistance, thermal stability and oxidation resistance for thin film resistors.