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1. 发明专利

JP6382503B2 磁気式エンコーダ用磁石の着磁装置及び着磁方法审中-公开
公开(公告)号：JP6382503B2
公开(公告)日：2018-08-29
申请号：JP2013233885
申请日：2013-11-12
申请人：内山工業株式会社
发明人：冨岡正稚
IPC分类号： G01D5/245 , H01F13/00
CPC分类号： H01F13/003 , G01D5/145 , G01D5/2451 , H01F13/006

3. 发明专利

JP2014526876A Control method and apparatus of the electromagnetic actuator 审中-公开
公开(公告)号：JP2014526876A
公开(公告)日：2014-10-06
申请号：JP2014531146
申请日：2012-08-02
申请人：ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフトZf Friedrichshafen Ag
发明人：ヴァインルフロリアン , パントケミヒャエル
IPC分类号： H02P25/06
CPC分类号： H02P25/06 , H01F7/1844 , H01F13/006 , H01F2007/185
摘要：少なくとも一つのコイル及び可動アーマチュアを備える電磁アクチュエータを制御するための本発明に係る制御方法（700）は，少なくとも一つのコイルに一連の電流パルス（621, 622, 623）を印加し，その際に電流方向を電流パルス毎に変化させると共に，電流強度を電流パルス毎に減少させて電磁アクチュエータ内の残留磁束密度を低下又は消失させる消磁ステップ（710）を含む。本発明に係る制御方法（700）は，消磁ステップ（710）の後，少なくとも一つのコイルに測定電流パルス（630）を印加することにより可動アーマチュアの位置を決定するステップ（720）を更に含む。
【選択図】図６

4. 发明专利

JP5042474B2 Permanent magnet bulk degausser 有权
公开(公告)号：JP5042474B2
公开(公告)日：2012-10-03
申请号：JP2005213205
申请日：2005-07-22
申请人：データセキュリティインコーポレイテッド
发明人：エー．シュルツロバート
IPC分类号： G11B5/024 , H01F13/00
CPC分类号： G11B5/0245 , H01F13/006

5. 发明专利

JP4800222B2 Method and apparatus for magnetizing an object 有权
公开(公告)号：JP4800222B2
公开(公告)日：2011-10-26
申请号：JP2006546102
申请日：2004-12-29
申请人：エヌシーティーエンジニアリングゲーエムベーハー
发明人：ルッツマイ
IPC分类号： G01L3/10 , F16H59/70 , G01D5/14 , G01D5/16 , G01L1/12 , G01L3/02 , G01L3/14 , G01L25/00 , H01F13/00
CPC分类号： G01D5/145 , F16H59/70 , G01L3/101 , H01F13/006

6. 发明专利

JP4800221B2 Torque sensor 有权
公开(公告)号：JP4800221B2
公开(公告)日：2011-10-26
申请号：JP2006546101
申请日：2004-12-29
申请人：エヌシーティーエンジニアリングゲーエムベーハー
发明人：ルッツマイ
IPC分类号： G01L3/10 , F16H59/70 , G01D5/14 , G01D5/16 , G01L1/12 , G01L3/02 , G01L3/14 , G01L25/00 , H01F13/00
CPC分类号： G01D5/145 , F16H59/70 , G01L3/101 , H01F13/006

7. 发明专利

JPS6199308A Demagnetizing method 失效
标题翻译： DEMAGNETIZING方法
公开(公告)号：JPS6199308A
公开(公告)日：1986-05-17
申请号：JP22020884
申请日：1984-10-19
申请人： Hitachi Metals Ltd
发明人： UENO TAISEI
IPC分类号： H01F13/00
CPC分类号： H01F13/006
摘要： PURPOSE:To allow a device having high demagnetizinag performance to be manufactured with low cost by changing polarity by use of a contactor in the case of a large current and changing polarity by use of a thyristor after attenuating down to a small current. CONSTITUTION:During the time section 1 in which the polarity of a large current is changed, the polarity is changed by use of a contactor. At the time point 2 when the current attenuates down to a certain set current 4, switching is done from the contactor to a thyristor. During the time section 3 in which the polarity of a small current is changed, switching is done by use of the thyristor. Changing of polarity which is imperfectly done under the small current by use of the contactor is completely done by use of the thyristor during the time section 3.
摘要翻译：目的：通过在大电流的情况下使用接触器，通过在衰减到小电流之后通过使用晶闸管改变极性来改变极性，从而以低成本制造具有高脱金属性能的器件。构成：在大电流的极性变化的时间段1中，通过使用接触器来改变极性。在时间点2，当电流衰减到一定的设定电流4时，从接触器切换到晶闸管。在小电流的极性变化的时间段3中，通过使用晶闸管进行切换。通过使用接触器在小电流下不完全地改变极性，是在时间段3期间通过使用晶闸管完成的。

8. 发明专利

JPS6134908A Demagnetizing method 失效
标题翻译： DEMAGNETIZING方法
公开(公告)号：JPS6134908A
公开(公告)日：1986-02-19
申请号：JP15693884
申请日：1984-07-26
申请人： Fujitsu Ltd
发明人： KARIYA NORIJI
IPC分类号： H01F13/00 , H04N9/29
CPC分类号： H01F13/006
摘要： PURPOSE:To perform the demagnetization of a magnetic shield more completely by a method wherein, after resistance value has reached a constant value by saturating the resistance variation of a thermistor, the full resistance value of the variable resistor connected to a demagnetizing coil in parallel is reduced. CONSTITUTION:The demagnetization current running on a PTC thermistor 2 increases the internal resistance of the PTC thermistor 2 having a positive temperature coefficient by the self-heat generation of the thermistor, and the demagnetization current is monotonously attenuated during the time t1. When the movable element of a variable resistor 3 is adjusted in the direction wherein its total combined resistance is made smaller by the output of a sequence control part 1 at the time T1 when said attenuation is almost stabilized, the greater part of the current runs to the variable resistor 3, the value of branched current running to the demagnetization coil 4 is completely zeroed, if the total combined resistance 3 is turned to zero. As a result, the demagnetization current can be adjusted arbitrarily to a very small value, thereby enabling to attenuate the residual magnetism to a very small value.
摘要翻译：目的：通过一种方法，通过饱和热敏电阻的电阻变化使电阻值达到一定值后，通过并联的消磁线圈连接的可变电阻的全部电阻值，可以更完全地进行磁屏蔽的退磁，减少构成：在PTC热敏电阻2上运行的去磁电流通过热敏电阻的自身发热而增加具有正温度系数的PTC热敏电阻2的内部电阻，并且在时间t1内退磁电流单调衰减。当可变电阻器3的可移动元件在所有衰减几乎稳定时在其总时间控制部分1的输出通过序列控制部分1的输出减小的方向上被调整时，大部分电流运行到如果总组合电阻3变为零，则可变电阻器3，运行到去磁线圈4的分支电流的值完全归零。结果，可以将退磁电流任意调整到非常小的值，从而能够将剩余磁性衰减到非常小的值。

9. 发明专利

JPS59175107A Degaussing equipment 失效
标题翻译：降解设备
公开(公告)号：JPS59175107A
公开(公告)日：1984-10-03
申请号：JP4837183
申请日：1983-03-23
申请人： Fuji Jikou Kk , Kasuga Denki Kk
发明人： HARASHIMA TOSHIO , HOZUMI TAKANORI
IPC分类号： H01F13/00
CPC分类号： H01F13/006
摘要： PURPOSE:To improve the efficiency of degaussing of an electromagnetic chuck and the like by a method wherein the voltage of the 1st capacitor, provided to a differential amplifier, is gradually reduced by FF and the charging speed of the 2nd capacitor, charged by FF, is gradually increased by comparing the 2nd capacitor voltage with the 1st capacitor voltage and the source whose plus and minus amplitude is alternately reduced gradually is used. CONSTITUTION:When a switch 10 is ON, an output (c) of a NOR circuit 11 becomes H through FFs 7, 8 and a thyristor T9 becomes conductive and a DC source is applied to a chuck 3 to magnetize it. When a switch 9 is ON for a certain period, an output Q of FF15 becomes H and an output Q' of FF17 becomes L and a coil 26 is excited and contacts K1, K2 are changed. The voltage of a capacitor C3 is reduced gradually and a capacitor C4 begins being charged. When an output of a differential amplifier is produced, a one-shot multiplexer 24 is triggered to discharge the capacitor C4 and the coil 26 is not excited and the contacts K1, K2 are changed. By repeating above procedure, the degaussing voltage is reduced gradually.
摘要翻译：目的：通过以下方式提高电磁卡盘等的消磁效率：通过FF将第1电容器的电压逐渐减小FF，通过FF充电的第2电容器的充电速度逐渐减小，通过比较第二电容器电压和第一电容器电压逐渐增加，并且使用正，负振幅逐渐降低的源。构成：当开关10接通时，NOR电路11的输出（c）通过FF7,8变为H，并且晶闸管T9导通，并且将DC源施加到卡盘3以使其磁化。当开关9导通一段时间后，FF15的输出Q变为H，FF17的输出Q'变为L，线圈26被激励，触点K1，K2被改变。电容器C3的电压逐渐减小，电容器C4开始充电。当产生差分放大器的输出时，触发单触发多路复用器24以放电电容器C4，并且线圈26不被激励，并且触点K1，K2被改变。通过重复上述步骤，消磁电压逐渐降低。

10. 发明专利

JPS5957405A Demagnetization method 失效
标题翻译：脱氧方法
公开(公告)号：JPS5957405A
公开(公告)日：1984-04-03
申请号：JP16751782
申请日：1982-09-28
申请人： Fujitsu Ltd
发明人： HORIKOSHI EIJI
IPC分类号： H01F13/00
CPC分类号： H01F13/006
摘要： PURPOSE:To eliminate influence of weak external magnetic field such as geomagnetism, by a method wherein a magnetic material is entered in a magnetic shield case having Curie temperature higher than that of the magnetic material, and then heated to a temperature higher than Curie temperature of the magnetic material and lower than that of the magnetic shield case. CONSTITUTION:A magnetic material 2 is entered in a magnetic shield case 3 having Curie temperature higher than that of the magnetic material 2, and then the magnetic material 2 is heated to a temperature higher than Curie temperature of the magnetic material 2 and lower than that of the magnetic shield case 3. For example, the magnetic shield case 3 is made of Fe-Co alloy of Curie temperature 990 deg.C in cylindrical form. The magnetic material 2 to be demagnetized is made of permalloy and treated in an electric furnace 9 for 20-30min at a temperature of 500 deg.C higher than the Curie temperature being about 420 deg.C.
摘要翻译：目的：为了消除诸如地磁之类的弱外部磁场的影响，通过将磁性材料进入具有居里温度高于磁性材料的磁屏蔽壳体的方法，然后加热到高于居里温度磁性材料低于磁屏蔽壳。构成：将磁性材料2输入到具有比磁性材料2高的居里温度的磁屏蔽壳体3中，然后将磁性材料2加热到高于磁性材料2的居里温度的温度，并低于磁性材料2的温度例如，磁屏蔽壳体3由居里温度为990℃的Fe-Co合金制成圆柱形。待退磁的磁性材料2由坡莫合金制成，并在电热炉9中在比居里温度约为420℃的温度高500℃的温度下处理20-30分钟。

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