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公开(公告)号：KR1020040012013A
公开(公告)日：2004-02-11
申请号：KR1020020045361
申请日：2002-07-31
Applicant: 국방과학연구소
IPC: C08B30/00
CPC classification number: H01B3/20
Abstract: PURPOSE: Electrorheological fluid with improved fluidity and reduced sedimentation of particles is provided by comprising dried water-soluble starch as conductive particles and additives. Therefore, the electrorheological fluid has various applications including a variable attenuation device capable of controlling a suspension system, vibration isolation system, and engine mount, or power transmission including brake, clutch, and the like. CONSTITUTION: The electrorheological fluid comprised of water-soluble starch particles, less than 5 wt% (excluding 0 %) of water based on the total weight of the fluid, additives for fluidity improvement and sediment inhibition, and non-conductive solvent is prepared by a method comprising the steps of: (1) milling the water-soluble starch particles to have less than 10 micrometer of particle size; (2) drying the obtained starch particles in an incubator at 35-45 deg.C and 30-50% of relative humidity; (3) mixing non-conductive solvent with additives; (4) adding thereto the starch particles obtained from the step (2) in an amount of 5-70 wt% based on the non-conductive solvent to obtain fluids; (5) heating the fluids at 100-150 deg.C; and (6) milling the fluid obtained from the step (5) for homogenous dispersion.
Abstract translation: 目的：通过包含干燥水溶性淀粉作为导电颗粒和添加剂，提供改善流动性和减少颗粒沉降的电流变流体。 因此，电流变流体具有各种应用，包括能够控制悬挂系统的可变衰减装置，隔振系统和发动机支架，或包括制动器，离合器等的动力传递。 构成：由水溶性淀粉颗粒组成的电流变流体，基于流体总重量的小于5重量％（不包括0％）的水，用于流动性改善和沉淀物抑制的添加剂以及非导电溶剂由 一种方法包括以下步骤：（1）将水溶性淀粉颗粒研磨成具有小于10微米的粒度; （2）在35-45℃和30-50％相对湿度的培养箱中干燥得到的淀粉颗粒; （3）将非导电溶剂与添加剂混合; （4）以非导电性溶剂为基础，以5-70重量％的量向其中加入由步骤（2）得到的淀粉颗粒，得到流体; （5）在100-150℃加热流体; 和（6）研磨由步骤（5）获得的流体以均匀分散。
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公开(公告)号：KR100477325B1
公开(公告)日：2005-03-21
申请号：KR1020020045361
申请日：2002-07-31
Applicant: 국방과학연구소
IPC: C08B30/00
CPC classification number: H01B3/20
Abstract: 본 발명은 수용성 전분을 전도성 입자로서 포함하며, 유체의 유동성 향상과 입자의 침전 현상을 완화시키기 위하여 첨가제가 첨가된 전기변성유체에 관한 것이다. 본 발명에 따른 전기변성유체는 현가 장치, 제진대, 엔진 마운트 등의 제어가 가능한 가변감쇠 기구, 또는 브레이크, 클러치 등의 동력 장치에 응용이 가능하다.
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公开(公告)号：KR1020030066239A
公开(公告)日：2003-08-09
申请号：KR1020020006579
申请日：2002-02-05
Applicant: 국방과학연구소
IPC: H02M3/28
CPC classification number: H02M3/33507 , H02M2001/0045
Abstract: PURPOSE: A circuit for controlling a discharge of a high-voltage DC(Direct Current) power supplier is provided to improve the control property by adding a discharge circuit to an output terminal of a flyback converter to discharge rapidly a voltage stored in a capacitor. CONSTITUTION: A transformer(T1) is driven by a MOS transistor(M1) which is a switching device to convert an input voltage(Vs) into a predetermined level of a high voltage and output it. A diode(D1) and a capacitor(C1) rectify and smooth the high voltage outputted from the transformer(T1) to supply it to an ER(Electro-Rheological) fluid application equipment. When an output voltage(Vo) of the capacitor(C1) drops, a discharge circuit(2) discharges rapidly the output voltage(Vo) by force. A controller(4) controls a turn-on operation of the MOS transistor(M1) based on an error component of the output voltage outputted from a subtractor(3) and outputs a control signal for driving the discharge circuit(2) at every time when reaching to a discharge period.
Abstract translation: 目的：提供一种用于控制高压DC（直流）电源的放电的电路，通过向反激式转换器的输出端加上放电电路来提高控制性能，以迅速放电存储在电容器中的电压。 构成：变压器（T1）由作为开关装置的MOS晶体管（M1）驱动，以将输入电压（Vs）转换成预定的高电压电平并将其输出。 二极管（D1）和电容器（C1）对从变压器（T1）输出的高电压进行整流和平滑，将其提供给ER（电 - 流变）流体应用设备。 当电容器（C1）的输出电压（Vo）下降时，放电电路（2）用力快速放电输出电压（Vo）。 控制器（4）基于从减法器（3）输出的输出电压的误差分量来控制MOS晶体管（M1）的接通运行，并且每次输出用于驱动放电电路（2）的控制信号 达到放电期。
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公开(公告)号：KR1020010083609A
公开(公告)日：2001-09-01
申请号：KR1020000007588
申请日：2000-02-17
Applicant: 국방과학연구소
IPC: C08B30/00
CPC classification number: C10M171/001
Abstract: PURPOSE: An electrically reformed fluid is provided to impart unique features of Newtonian fluid at non-load state of electric field whereas flow control ability at load state of the field by comprising dried water-soluble starch as the conductive particulate. CONSTITUTION: The reformed fluid is prepared by grinding the water-soluble material(103) into less than 10 micrometer size particles by means of grinder(141); drying the particles in a constant-temperature and humidity device(142) under a condition of 35-45 deg.C and 30-50% of relative humidity; blending the dried material with a non-conductive solvent(102) selected from silicon oil, transformer oil, transformer insulating solution, mineral oil or olive oil alone and/or in combination with two of them in a weight ratio of 5-70wt.% based on the solvent in a container(143); heating the obtained fluid in an oil bath(144) of 100-150 deg.C; alternatively grinding the prepared electrical reformed fluid regularly miscible together in another grinder(145); and introducing the fluid(101) into a bottle(146). The reformed fluid has 5wt.% or less of water content.
Abstract translation: 目的：提供一种电子改性流体，以通过包含干燥的水溶性淀粉作为导电颗粒，在非负载状态下赋予牛顿流体独特的特征，而在场的负载状态下的流动控制能力。 构成：通过研磨机（141）将水溶性材料（103）研磨成小于10微米尺寸的颗粒来制备改性流体; 在35-45摄氏度和30-50％相对湿度的条件下，在恒温恒湿装置（142）中干燥颗粒; 将干燥的材料与单独的硅油，变压器油，变压器绝缘溶液，矿物油或橄榄油中的非导电溶剂（102）和/或其中的两种以5-70重量％的重量比混合， 基于容器（143）中的溶剂; 在100-150℃的油浴（144）中加热得到的流体; 或者研磨在另一研磨机（145）中定期混溶在一起的制备的电改性流体; 并将流体（101）引入瓶（146）中。 重整液的含水量为5重量％以下。
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Patent Agency Ranking
公开(公告)号：KR101320418B1
公开(公告)日：2013-10-23
申请号：KR1020120041871
申请日：2012-04-23
Applicant: 국방과학연구소
Abstract: PURPOSE: An intercommunication device for a helicopter supporting a backup mode is provided to relay internal communications and external communications through analogue communication data by using the backup relay unit of a communication repeater even during a backup mode. CONSTITUTION: A plurality of user terminals (210, 220, 230) communicate with the inside or outside. A communication repeater (300) is connected to each user terminal. The communication repeater relays a signal from each user terminal to the inside or outside. Each of walkie-talkies (510, 520) is connected to the communication repeater, and communicates a signal from the communication repeater with the outside. An external control center (100) is wirelessly connected to the walkie-talkies, and transmits or receives a signal from or to each walkie-talkies. [Reference numerals] (100) External control center; (210) User terminal 1; (220) User terminal 2; (230) User terminal 3; (300) Communication repeater; (510) Walkie-talkie 1; (520) Walkie-talkie 2
Abstract translation: 目的：提供支持备份模式的直升机的互通装置，即使在备份模式下，通过使用通信中继器的备用中继单元通过模拟通信数据中继内部通信和外部通信。 构成：多个用户终端（210,220,230）与内部或外部通信。 通信中继器（300）连接到每个用户终端。 通信中继器将来自每个用户终端的信号中继到内部或外部。 对讲机（510,520）中的每一个连接到通信中继器，并且将来自通信中继器的信号与外部通信。 外部控制中心（100）无线连接到对讲机，并从每个对讲机发送或接收信号。 （附图标记）（100）外部控制中心; （210）用户终端1; （220）用户终端2; （230）用户终端3; （300）通讯中继器; （510）对讲机1; （520）对讲机2
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公开(公告)号：KR100420931B1
公开(公告)日：2004-03-02
申请号：KR1020020006579
申请日：2002-02-05
Applicant: 국방과학연구소
IPC: H02M3/28
CPC classification number: H02M3/33507 , H02M2001/0045
Abstract: A high voltage DC power supplier includes: a transformer driven by a switching device, transforming an input voltage to a certain level of high voltage, and outputting the transformed high voltage; a diode and a capacitor for rectifying and smoothing the high voltage outputted from the transformer, and supplying the smoothed voltage to an ER fluid application unit; a discharge circuit for forcibly discharging the output voltage when an output voltage of the capacitor descends; and a controller for controlling a turn-on operation of the switching device on the basis of a difference value between the output voltage and a reference voltage so that the output voltage can follow a target voltage, and outputting a control signal for driving the discharge circuit to the discharge circuit when it reaches a discharge period.
Abstract translation: 高压直流电源包括：由开关器件驱动的变压器，将输入电压转换为一定电平的高电压，并输出转换后的高电压; 二极管和电容器，用于对从变压器输出的高压进行整流和平滑，并将平滑后的电压提供给ER流体施加单元; 放电电路，用于当电容器的输出电压下降时强制放电输出电压; 以及控制器，用于基于输出电压和参考电压之间的差值来控制开关器件的导通操作，使得输出电压能够跟随目标电压，并且输出用于驱动放电电路的控制信号 当放电时间到达放电电路时。
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公开(公告)号：KR100333491B1
公开(公告)日：2002-04-25
申请号：KR1020000007588
申请日：2000-02-17
Applicant: 국방과학연구소
IPC: C08B30/00
Abstract: 본 발명은 수용성 전분을 전도성 입자로 함유하는 전기변성유체에 있어서, 상기 전기변성 유체의 수분 함량이 5 중량% 미만인 전기변성유체를 제공한다. 이러한 전기변성유체는 전도성 입자인 수용성 전분을 비전도성 용매 중에 분산시킴으로써 전기장 무부하 시에는 뉴토니안 유체(Newtonian Fluids)의 특성을 나타내지만, 전기장 부하시 전기장의 증가에 따라 항복응력과 가점성이 증가하여 유동을 제어할 수 있는 특성을 보인다.
이러한 특성은 현가장치, 제진대, 엔진 마운트 등의 제어가 가능한 가변감쇠기구나 브레이크, 클러치 등의 동력장치에 응용이 가능하며, 자동차 및 항공산업 등을 비롯한 많은 분야에서 적용이 가능하다.-
公开(公告)号：KR1020130107688A
公开(公告)日：2013-10-02
申请号：KR1020120029660
申请日：2012-03-23
Applicant: 국방과학연구소
CPC classification number: B64D43/00 , B64D45/00 , G06F3/02 , G06F3/0219
Abstract: PURPOSE: A control data unit capable of inputting Korean alphabet is provided to input Korean alphabet for commands and place name and miniaturize the hardware thereof. CONSTITUTION: A control data unit capable of inputting Korean alphabet has multiple keys for inputting flying information required for the operation of a flying vehicle to a control part of the flying vehicle. The control data unit includes a number input part (100), an English/Korean alphabet input part (200), and an auxiliary input part (300). The number input part is composed of multiple number keys. The English/Korean alphabet input part is composed of multiple character keys. The auxiliary input part is composed of multiple auxiliary keys for moving the characters, controlling the gaps between characters, and deleting the inputted characters.
Abstract translation: 目的：提供能够输入韩文字母的控制数据单元，用于输入韩文字母表，用于命令和地名，并将其硬件小型化。 构成：能够输入韩文字母的控制数据单元具有用于将飞行器操作所需的飞行信息输入到飞行器的控制部分的多个键。 控制数据单元包括数字输入部分（100），英语/韩语字母输入部分（200）和辅助输入部分（300）。 数字输入部分由多个数字键组成。 英文/韩文字母输入部分由多个字符键组成。 辅助输入部分由多个辅助键组成，用于移动字符，控制字符间的间隙以及删除输入的字符。
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公开(公告)号：KR1020040012012A
公开(公告)日：2004-02-11
申请号：KR1020020045360
申请日：2002-07-31
Applicant: 국방과학연구소
IPC: C10M149/00
Abstract: PURPOSE: Provided is electrorheological (ER) fluids which have effective ER effect over a broad range of temperature, showing stable Bingham behavior per changes in temperature and electric field, by having semiconducting polyaniline particles dispersed in a non-conductive medium such as silicone oil. CONSTITUTION: The electrorheological fluids wherein 10-20 % by volume of polyaniline particles at pH 7.5-10.0 are dispersed in a non-conductive medium, are prepared by a method comprising: (1) carrying out polymerization of aniline in 1M aqueous hydrochloride solution at -10 to 5 deg.C to provide polyaniline particles; (2) milling the polyaniline obtained from the step (1), and selecting particles of 1-10 micrometer by sieving; (3) adjusting the pH of the resulted particles to 7.5-10.0 with aqueous sodium hydroxide solution; and (4) dispersing the obtained particles into a non-conductive solvent selected from a group consisting of silicone oil, transformer oil, transformer insulating solution, mineral oil, olive oil, and mixtures thereof.
Abstract translation: 目的：提供在宽温度范围内具有有效ER效应的电流变（ER）流体，通过将半导体聚苯胺颗粒分散在非导电介质如硅油中，显示出每温度和电场变化的宾汉行为的稳定性。 构成：其中10-20体积％的pH7.0-10.0的聚苯胺颗粒分散在非导电介质中的电粘滞性流体是通过以下方法制备的：（1）在1M盐酸水溶液中进行苯胺的聚合， -10至5℃以提供聚苯胺颗粒; （2）研磨由步骤（1）获得的聚苯胺，并通过筛分选择1-10微米的颗粒; （3）用氢氧化钠水溶液调节所得颗粒的pH至7.5-10.0; 和（4）将所得颗粒分散在选自由硅油，变压器油，变压器绝缘溶液，矿物油，橄榄油及其混合物组成的组中的非导电溶剂中。
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