公开(公告)号：US5308977A

公开(公告)日：1994-05-03

申请号：US25139

申请日：1993-03-02

申请人： Konosuke Oishi ,  Masataka Koga ,  Hiromi Yamashita ,  Takashi Iino ,  Toyoharu Okumoto ,  Tsuyoshi Nishitarumizu

发明人： Konosuke Oishi ,  Masataka Koga ,  Hiromi Yamashita ,  Takashi Iino ,  Toyoharu Okumoto ,  Tsuyoshi Nishitarumizu

IPC分类号： G01N27/62 ,  H01J49/10 ,  H01J49/26 ,  H01J49/36

CPC分类号： H01J49/105

摘要： A plasma mass spectrometer generates an aerosol of a sample, by dissolving the sample in a liquid solvent, and spraying the liquid into a spray chamber via a nebulizer. The solvent condenses in the spray chamber and an aerosol of the sample then passes through a supply tube to a plasma torch. Microwave power from an output on the plasma torch converts the aerosol to a plasma, and the plasma passes to an analyzer. If microwave radiation reached the spray chamber, it would cause heating of the solvent which may evaporate it so that the solvent would be present in the plasma. Therefore, there is a wall between the spray chamber and the plasma torch and microwave output which blocks such microwave radiation.

摘要翻译： 等离子体质谱仪通过将样品溶解在液体溶剂中并通过喷雾器将液体喷射到喷雾室中而产生样品气溶胶。 溶剂在喷雾室中冷凝，然后样品的气溶胶通过供应管到等离子体焰炬。 来自等离子体焰炬上的输出的微波功率将气溶胶转换成等离子体，并且等离子体传递到分析器。 如果微波辐射到达喷雾室，则会引起溶剂的加热，这可能使其蒸发，使得溶剂将存在于等离子体中。 因此，喷雾室和等离子体焰炬和微波输出之间存在阻挡这种微波辐射的壁。

公开(公告)号：US5122752A

公开(公告)日：1992-06-16

申请号：US575422

申请日：1990-08-30

申请人： Masataka Koga ,  Tsuyoshi Nishitarumizu ,  Tetsuya Matsui ,  Kenji Yokose ,  Masaharu Sakagami ,  Takehiko Kitamori

发明人： Masataka Koga ,  Tsuyoshi Nishitarumizu ,  Tetsuya Matsui ,  Kenji Yokose ,  Masaharu Sakagami ,  Takehiko Kitamori

IPC分类号： G01N21/62 ,  G01N15/06 ,  G01N15/10 ,  G01N27/02 ,  G01N27/62 ,  G01N27/64 ,  G01N33/18

CPC分类号： G01N15/0656 ,  G01N27/628 ,  G01N33/18

摘要： A method of and an apparatus for analyzing a granular material contained in a sample of a medium such as water produced by an ultra-pure water producing apparatus includes the steps of adding energy to granular materials contained in a sample which is mixed with the medium, wherein the energy is set to be lower than the breakdown threshold of the medium and to be higher than the breakdown threshold of the granular materials, detecting ions which are generated with the breakdown of the granular materials by using a pair of positive and negative electrodes; and analyzing characteristics of the granular materials based on the ions.

摘要翻译： 一种用于分析由超纯水生产设备产生的诸如水的介质样品中所含的颗粒状物质的方法和装置，包括以下步骤：向包含在与介质混合的样品中的颗粒材料加入能量， 其中所述能量被设定为低于所述介质的击穿阈值并且高于所述粒状材料的击穿阈值，检测通过使用一对正极和负极的所述粒状材料的击穿而产生的离子; 并基于离子分析粒状材料的特性。

公开(公告)号：US4810168A

公开(公告)日：1989-03-07

申请号：US111640

申请日：1987-10-22

申请人： Taro Nogami ,  Tsuyoshi Nishitarumizu ,  Kiwao Seki

发明人： Taro Nogami ,  Tsuyoshi Nishitarumizu ,  Kiwao Seki

IPC分类号： F04B13/00 ,  B01D15/08 ,  F04B9/04 ,  F04B11/00 ,  G01N30/32 ,  F04B49/06 ,  F04B3/00 ,  F04B49/00

CPC分类号： F04B11/00 ,  F04B11/0058 ,  F04B11/0083 ,  F04B2203/0209

摘要： A low pulsation pump device has a pulse motor, two plungers adapted to be driven by the pulse motor, a pressure sensor disposed on the output side of the plungers, a storage for storing values of pressures detected by the pressure sensor during each of a number of periods, a high speed region during which the rotational speed of the pulse motor is increased. The pulse control has an optimization function which determines, on the basis of pressure information which was obtained during the last period, the location of a high speed region in each period in such a manner as to reduce pulsations.

摘要翻译： 低脉动泵装置具有脉冲电动机，适于由脉冲电动机驱动的两个柱塞，设置在柱塞输出侧的压力传感器，用于存储压力传感器在每个数字期间检测到的压力值的存储器 的时间段，其中脉冲电机的转速增加的高速区域。 脉冲控制具有优化功能，其基于在最后期间获得的压力信息，以减少脉动的方式确定每个周期中的高速区域的位置。

公开(公告)号：US5164592A

公开(公告)日：1992-11-17

申请号：US581908

申请日：1990-09-13

申请人： Takehiko Kitamori ,  Masataka Koga ,  Tsuyoshi Nishitarumizu ,  Tetsuya Matsui ,  Kenji Yokose ,  Masaharu Sakagami

发明人： Takehiko Kitamori ,  Masataka Koga ,  Tsuyoshi Nishitarumizu ,  Tetsuya Matsui ,  Kenji Yokose ,  Masaharu Sakagami

IPC分类号： G01N27/62 ,  H01J49/04 ,  H01J49/10 ,  H01J49/16 ,  H01J49/26

CPC分类号： H01J49/164

摘要： The power density of a pulsed laser beam for irradiating a sample is adjusted to break down the sample into the form of a plasma. After the momentary breakdown of the sample into the form of a plasma, ions are generated having a high charge. Then, after a certain time elapses, the ions having a high charge recombine with the electrons in the plasma to provide monovalent or low valent ions. These low valent ions are taken out of the plasma and introduced to a mass spectrometric apparatus.

公开(公告)号：US4913624A

公开(公告)日：1990-04-03

申请号：US228749

申请日：1988-08-05

申请人： Kiwao Seki ,  Tsuyoshi Nishitarumizu

发明人： Kiwao Seki ,  Tsuyoshi Nishitarumizu

IPC分类号： F04B9/04 ,  F04B11/00 ,  F04B13/00 ,  F04B49/06

CPC分类号： F04B11/00 ,  F04B11/0058 ,  F04B11/0083

摘要： A low pulsation displacement pump has a pair of plungers and motor driven-cams or feed screws for reciprocating the plungers. In order to cause the pump to stably discharge a liquid so that variation in discharge due to machining errors of the plungers or the feed screws is eliminated, the pump discharge pressure is measured at each of a plurality of predetermined operative positions of the plungers before delivery of the pump from a manufacturing plant, and machining errors are obtained in accordance with the thus-measured discharge pressure. Then, the speed correction factor for the motor is calculated for each of the plurality of predetermined positions of the plungers in accordance with the thus-obtained errors to store the results of the calculation in a memory. When the pump is used, the motor is operated while the speed of the motor is compensated for at each of the plurality of predetermined positions of the plungers in accordance with the speed correction factor stored in the memory, whereby the rate of discharge of pump can be kept substantially constant by preventing speed variation of the plungers due to machining error of the cams.