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1.发明授权公开(公告)号：US06518747B2
公开(公告)日：2003-02-11
申请号：US09785403
申请日：2001-02-16
IPC分类号： G01N2774
CPC分类号： G01N27/745 , G01R33/1215
摘要： Apparatus for detection and measurement of agglutinations of magnetic particles employing Hall sensors. A low frequency AC signal is employed to excite or bias the Hall sensors which reside in a DC magnetic field. The particles are moved into operative relationship with the Hall sensors in order to generate a signal representing the number of particles on the substrate. The method for such detection and measurement is also part of the invention.
摘要翻译： 用于使用霍尔传感器检测和测量磁性颗粒的凝集物的装置。 使用低频AC信号来激励或偏置驻留在DC磁场中的霍尔传感器。 颗粒被移动到与霍尔传感器的操作关系，以产生表示基板上的颗粒数量的信号。 这种检测和测量的方法也是本发明的一部分。
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2.发明授权Method for obtaining improved temperature regulation when using liquid helium cooling 失效使用液氦冷却时获得改善温度调节的方法
公开(公告)号：US4791788A
公开(公告)日：1988-12-20
申请号：US87465
申请日：1987-08-24
CPC分类号： F17C6/00 , F17C13/026 , F17C2223/0161 , F17C2227/0341 , F17C2250/0626
摘要： A method for controlling the flow of a cooling medium such as helium into an insulated chamber surrounding a region to establish a stable thermal environment in the region over a wide range of cryogenic temperatures. A thermally insulated capsule surrounds a variable temperature capillary to precondition the helium before it flows into the insulated chamber. The capillary can be operated in different modes, depending upon the heating or lack of heating of the capillary. At low temperatures the capillary can pass the helium in its liquid phase, at high temperatures only a small amount of gaseous helium is passed, and at certain intermediate temperatures there is an ample flow of gaseous helium only.
摘要翻译： 用于控制诸如氦的冷却介质的流动到围绕区域的绝热室中以在宽范围的低温温度下在该区域中建立稳定的热环境的方法。 绝热胶囊围绕可变温度的毛细管，以在氦流入隔热室之前对其进行预调节。 毛细管可以以不同的模式操作，这取决于毛细管的加热或不加热。 在低温下，毛细管可以在其液相中通过氦气，在高温下只有少量的气态氦气通过，而在某些中间温度下，只有大量的气态氦气。
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3.发明授权Method and apparatus for using stochastic excitation and a superconducting quantum interference device (SAUID) to perform wideband frequency response measurements 失效使用随机激励的方法和装置以及超导量子干涉装置（SQUID）进行宽带频率响应测量
公开(公告)号：US5343147A
公开(公告)日：1994-08-30
申请号：US941527
申请日：1992-09-08
IPC分类号： G01R33/035 , G01R33/36 , G01R33/46 , G01R33/12
CPC分类号： G01R33/326 , G01R33/0358 , G01R33/4616 , Y10S505/846
摘要： A stochastic excitation, SQUID detection system for determining the frequency response of a sample. A pair of counterwound detection coils are adjacent to an excitation coil. The sample is selectively placed in one of the detection coils for taking measurements. The SQUID sensor is a broadband, high sensitivity device which enables the frequency response of the sample to be determined over a wide bandwidth with a single measurement.
摘要翻译： 随机激励，SQUID检测系统，用于确定样本的频率响应。 一对副绕线检测线圈与励磁线圈相邻。 将样品选择性地放置在一个检测线圈中用于进行测量。 SQUID传感器是一种宽带高灵敏度器件，可通过单次测量在宽带宽上确定样品的频率响应。
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4.发明授权
公开(公告)号：US4848093A
公开(公告)日：1989-07-18
申请号：US244947
申请日：1988-09-15
CPC分类号： F17C6/00 , F17C13/026 , F17C2203/0621 , F17C2205/037 , F17C2221/017 , F17C2223/0161 , F17C2223/035 , F17C2250/0439 , F17C2250/0631 , F17C2250/0636 , F17C2260/02
摘要： An apparatus and method for regulating the temperature in a cryogenic test chamber. Liquid helium is drawn into a test chamber located in a cryogenic vessel through a capillary tube which is spaced apart from the test chamber. The capillary tube is thermally insulated from the liquid helium. In a high temperature mode, a heater element heats the capillary tube to a temperature just high enough to boil the liquid helium as the helium is drawn through the capillary tube into the test chamber, thereby insuring that only gaseous helium enters the test chamber and preventing any tendency of the temperature in the test chamber to oscillate when the test chamber is warmed to temperature only slightly higher than the temperature of the liquid helium. In a low temperature mode the heater element heats the capillary tube sufficiently to substantially prevent any helium from flowing into the test chamber, thereby facilitating cooling of the test chamber to temperature below the temperature of the liquid helium by evacuating the test chamber until the liquid therein boils at the desired temperature.
摘要翻译： 一种用于调节低温试验箱内温度的装置和方法。 液氦通过与测试室间隔开的毛细管被吸入位于低温容器中的测试室中。 毛细管与液氦热绝缘。 在高温模式中，加热器元件将毛细管加热到足够高的温度，以便当氦气通过毛细管抽入测试室时，使氦气沸腾，从而确保只有气态氦气进入测试室并防止 当测试室被加热到仅略高于液氦温度的温度时，测试室中的温度的任何趋势都会振荡。 在低温模式下，加热器元件充分加热毛细管，以基本上防止任何氦气流入测试室，从而通过抽空试验室将试验室冷却至低于液氦温度的温度，直到其中的液体 在所需温度下沸腾。
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5.发明授权
公开(公告)号：US5647228A
公开(公告)日：1997-07-15
申请号：US679553
申请日：1996-07-12
申请人： Ronald E. Sager , Stefano Spagna
发明人： Ronald E. Sager , Stefano Spagna
CPC分类号： B01L7/00 , F17C13/026 , G05D23/126 , F17C2203/032 , F17C2205/0326 , F17C2205/0341 , F17C2221/017 , F17C2223/0161 , F17C2223/033 , F17C2227/0114 , F17C2227/0304 , F17C2227/045 , F17C2250/032 , F17C2250/0439 , F17C2250/061 , F17C2250/0631
摘要： A dual capillary inlet cryogenic test chamber having the ability to continuously regulate temperature between about 1.5 K. and 400 K. A controllably heated capillary tube is located in the cryogenic reservoir, spaced from the test chamber and thermally insulated from the cryogen. This capillary tube has a characteristic impedance to fluid flow. A second low temperature, high impedance capillary tube inlet is also in the cryogenic reservoir and is connected between the cryogen reservoir and the test chamber. The combination of a control system with pressure and temperature feedback, combined with the two inlet tubes of different impedance, enables the apparatus to operate continuously and stably at any temperature within its operating range, or to smoothly sweep through any predetermined temperature range.
摘要翻译： 双毛细管入口低温试验室具有连续调节温度在约1.5K和400K之间的温度。可控加热的毛细管位于低温储存器中，与测试室隔开并与冷冻剂隔热。 该毛细管具有流体流动的特征阻抗。 第二个低温，高阻抗毛细管入口也在低温储存器中，并连接在冷冻剂储存器和测试室之间。 具有压力和温度反馈的控制系统的组合与不同阻抗的两个入口管结合使得设备能够在其工作范围内的任何温度下连续且稳定地操作，或者平滑地扫过任何预定的温度范围。
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