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公开(公告)号：US3912999A
公开(公告)日：1975-10-14
申请号：US37812673
申请日：1973-07-11
Applicant: CALIFORNIA INST OF TECHN
Inventor： ENGLAND CHRISTOPHER
CPC classification number: H01M8/22 , H01M10/399 , H01M10/44 , H01M12/085 , Y02E60/128
Abstract: This electrochemical cell uses zinc and either chlorine or bromine as the primary reactants, with a molten, non-aqueous zinc halide electrolyte. During charging of the cell, growth of dendrites on the zinc electrode is controlled by operating the cell continuously or intermittently at a temperature above the melting point of zinc, thereby positively preventing such growth; or by operating at such temperature that incipient dendrites are melted by heat generated by the charging current. That current may be intermittently increased to insure such dendrite control. In a large battery of cells utilizing chlorine as the halogen, excess halogen gas developed during charging of the battery is compressed and liquefied to facilitate external storage, and a large portion of the energy required for compression is recovered upon expansion of the gas during battery discharge.
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公开(公告)号：US3909602A
公开(公告)日：1975-09-30
申请号：US40122473
申请日：1973-09-27
Applicant: CALIFORNIA INST OF TECHN
Inventor： MICKA ERNEST Z
IPC: G01N21/956 , G01R31/308 , G06F15/46 , G01N21/32
CPC classification number: G01R31/308 , G01N21/95607
Abstract: A system for automatically inspecting an integrated circuit, including a device for shining a scanning narrow light beam at an integrated circuit to be inspected and another light beam at an accepted integrated circuit, a pair of photo-detectors that receive light reflected from these integrated circuits, and a comparing system compares the outputs of the photo-detectors.
Abstract translation: 一种用于自动检查集成电路的系统，包括用于在待检查的集成电路上照射扫描窄光束的装置和在可接受的集成电路处的另一光束的一对光检测器，其接收从这些集成电路反射的光 并且比较系统比较光电检测器的输出。
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公开(公告)号：US3884081A
公开(公告)日：1975-05-20
申请号：US48214074
申请日：1974-06-24
Applicant: CALIFORNIA INST OF TECHN
Inventor： GRIFFITH GEORGE A
IPC: G01N1/24
CPC classification number: G01N1/24 , G01N2001/247
Abstract: An automated sequential air sampler that is highly suitable for being remotely situated to obtain a plurality of air samples at predetermined intervals of time over an extended time period, is disclosed. The air sampler includes a plurality of piston pumps that may be in the form of hypodermic syringes. Each pump operates to obtain an air sample whenever a plunger thereof is retracted to have air drawn through an inlet needle into an interior chamber thereof. The inlet to each pump is automatically sealed by having the inlnet needle thereof covered by a septum that is drawn against said inlet with a guide rod on which it is mounted and in response to the plunger reaching the end of its stroke. Sequential retraction of the several syringe plungers is accomplished by operation of a timed retractor assembly which functions to retract individual plungers at predetermined intervals of time.
Abstract translation: 公开了一种高度适用于远程定位以在延长的时间段内以预定的时间间隔获得多个空气样本的自动顺序空气采样器。 空气采样器包括可以是皮下注射器形式的多个活塞泵。 每个泵操作以获得空气样品，只要其柱塞缩回以使空气通过入口针吸入其内部室。 每个泵的入口通过使其中空针头被隔垫覆盖而被自动密封，所述隔膜用安装在其上的导杆并且响应于柱塞到达其行程的结束而被拉到所述入口。 几个注射器柱塞的顺序回缩通过定时牵开器组件的操作来实现，该定时牵开器组件用于以预定的时间间隔缩回各个柱塞。
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公开(公告)号：US3881111A
公开(公告)日：1975-04-29
申请号：US40126273
申请日：1973-09-27
Applicant: CALIFORNIA INST OF TECHN
Inventor： STEPHENS JAMES B , MAHADEVAN PARAMESWAR , CHUAN RAYMOND L
Abstract: A method and apparatus for detecting the presence and quantity of nitric oxide is disclosed. A volume of gas being evaluated for the presence and quantity of nitric oxide is illuminated by a source of ultraviolet radiation to produce ionization of any nitric oxide present. Resulting nitric oxide ions are detected by means of an ion detection system. The source of ultraviolet radiation may be either a window or windowless device.
Abstract translation: 公开了一种用于检测一氧化氮的存在和量的方法和装置。 对一氧化氮的存在和数量进行评估的气体体积由紫外线辐射源照射以产生存在的任何一氧化氮的电离。 通过离子检测系统检测产生的一氧化氮离子。 紫外线辐射源可以是窗户或无窗装置。
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公开(公告)号：US3860880A
公开(公告)日：1975-01-14
申请号：US36140373
申请日：1973-05-18
Applicant: CALIFORNIA INST OF TECHN
Inventor： YARIV AMNON , ARMSTRONG DESMOND R
CPC classification number: H01J25/38
Abstract: A tunable travelling wave optical device consists of a dielectric optical waveguide with a top surface, which is periodically corrugated with a corrugation periodicity, L. At least the corrugated top surface is in an evacuated envelope wherein an electron beam with an adjustable electron velocity, ve is formed. The electron beam propagates in close proximity to and in a direction parallel to the direction of propagation of an optical beam through the guide. The electron velocity is adjusted to be greater than but on the order of the phase velocity of the first spatial harmonic generated in the corrugated waveguide. The wavelength lambda of the optical beam which is amplifiable by the device, or is produced therein when the latter acts as an oscillator, is substantially equal to c/ve L, c being the speed of light.
Abstract translation: 可调谐行波光学器件由具有顶表面的电介质光波导构成，其波纹周期为周期波形。至少波纹顶表面处于抽真空的外壳中，其中具有可调电子速度的电子束 形成了。 电子束在与光束通过引导件的传播方向平行的方向上并且在平行的方向上传播。 电子速度被调整为大于但在波纹波导中产生的第一空间谐波的相位速度的数量级。 可以由器件放大的光束的波长λ或者当后者用作振荡器时产生的光束的波长λ基本上等于c / ve L，c是光速。
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Patent Agency Ranking6.发明授权Automated system for identifying traces of organic chemical compounds in aqueous solutions 失效用于识别有机化学物质在水溶液中的作用的自动化系统
公开(公告)号：US3860393A
公开(公告)日：1975-01-14
申请号：US22797772
申请日：1972-02-22
Applicant: CALIFORNIA INST OF TECHN
Inventor： CAMPEN JR CHARLES F
IPC: G01N30/06 , G01N30/14 , G01N30/46 , G01N30/62 , G01N30/74 , G01N30/84 , G01N30/86 , G01N30/88 , G01N35/00 , G06F17/00 , G01N33/00 , G01N31/08
CPC classification number: G01N30/88 , G01N30/14 , G01N30/466 , G01N30/74 , G01N30/8675 , G01N35/00 , G01N2030/062 , G01N2030/628 , G01N2030/8411 , G01N2030/8804 , Y10T436/11
Abstract: An automated system wherein, under computer control, traces of organic chemical compounds in aqueous solutions are separated into a plurality of families of compounds. Several of the families are separated as separate extracts, dissolved in organic solvents. The volume of solvent, containing each extract, is greatly reduced in a separate pre-GC unit, to increase the ratio of extract to solvent volume. The output of each pre-GC unit is supplied to a separate gas chromatograph (GC). The elution times of the peaks, exiting the various GC''s, are used in the selection of peaks of interest by the computer based on the comparison of the extract types and the elution times with elution times of known compounds. Peaks of interest from any of the several GC''s are supplied one at a time to an absorption cell of a single IR spectrometer through a peak storage unit, which is designed to hold each peak of interest in one of its holding columns until the spectrometer is ready to receive the peak. Compounds are identified by the computer based on their extract types, elution times and the spectral data from the spectrometer.
Abstract translation: 一种自动化系统，其中在计算机控制下，水溶液中的痕量有机化合物被分离成多个化合物族。 几个家庭分离为分离的提取物，溶于有机溶剂。 包含每种提取物的溶剂体积在单独的前GC单元中大大降低，以提高提取物与溶剂体积的比例。 每个前GC单元的输出被提供给单独的气相色谱仪（GC）。 基于提取物类型和洗脱时间与已知化合物的洗脱时间的比较，使用离开各种GC的峰的洗脱时间用于计算机选择感兴趣的峰。 通过峰值存储单元一次向一个红外光谱仪的吸收单元提供一个多个GC的感兴趣的峰，其被设计成将感兴趣的每个峰保持在其一个保持柱中，直到光谱仪准备好 接受高峰。 化合物由计算机根据其提取类型，洗脱时间和来自光谱仪的光谱数据进行鉴定。
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公开(公告)号：US3835407A
公开(公告)日：1974-09-10
申请号：US36282173
申请日：1973-05-21
Applicant: CALIFORNIA INST OF TECHN
CPC classification number: H03F3/55
Abstract: A travelling wave amplifier of signals in the millimeter wavelength range consists of a monolithic solid state waveguide structure wherein space harmonics of the input electromagnetic energy wave (signals) are generated due to periodic corrugations of the guide''s top surface. The waveguide structure includes a current conductive layer supportive of a stream of electrons with an electron velocity ve, the stream of electrons being located where the amplitude of the spatial first harmonic is a maximum. The corrugation periodicity L is selected so that the equality ve K ( omega /2 pi ) L is satisified. In the equality, omega is the angular frequency of the input wave and K is a factor which is not less than and on the order of one.
Abstract translation: 毫米波长范围内的信号的行波放大器由单片固体波导结构组成，其中由于引导件顶表面的周期性波纹而产生输入电磁能波（信号）的空间谐波。 波导结构包括支撑电子流与电子速度ve的电流导电层，电子流位于空间一次谐波的振幅最大的位置。 选择波纹周期L，使得满足等式ve = K（ω/2π）L。 在等式中，ω是输入波的角频率，K是不小于或等于1的因子。
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公开(公告)号：US3798511A
公开(公告)日：1974-03-19
申请号：US33890773
申请日：1973-03-07
Applicant: CALIFORNIA INST OF TECHN
Inventor： NOTARYS H , MERCEREAU J
CPC classification number: H01L39/223 , H01L39/2493 , Y10S505/874
Abstract: Techniques are disclosed for fabrication of superconducting thin film structures which show Josephson-like effects and which allow fabrication of standard components, such as resistors and capacitors in circuits, starting with the deposition of superimposed thin films of selected metals at least one of which is superconducting, and all of which are stable (i.e., will not diffuse and are sufficiently inert to be chemically stable under normal use). The thin films are all effectively removed around the desired structure by anodization through a photoresist mask or by ion beam etching. A structure which shows a Josephson-like effect is produced by so manipulating the thin films that a thin line region across a narrowed section of the layered thin films is produced with a lower transition temperature than in the surrounding layered films. This is done by altering the ratio of the thickness of the superconductive thin film to the thickness of the non-superconductive thin film in the thin line region and controlling the dimension, l, of the thin line region in the direction of current flow.
Abstract translation: 公开了用于制造超导薄膜结构的技术，其显示出约瑟夫逊效应，并且允许制造诸如电路中的电阻器和电容器的标准组件，首先沉积选定金属的叠加薄膜，其中至少一个是超导 ，并且所有这些都是稳定的（即，在正常使用下不会扩散并且足够惰性以使其具有化学稳定性）。 通过通过光致抗蚀剂掩模的阳极氧化或通过离子束蚀刻，薄膜全部被有效地除去所需结构。 通过这样操作薄膜，可以制造出具有约瑟夫森效应的结构，即薄层的薄壁区域跨越层状薄膜的窄区域产生的转变温度低于周围分层薄膜。 这是通过改变超导薄膜的厚度与细线区域中的非超导薄膜的厚度的比例来实现的，并且控制细线区域在电流方向上的尺寸l。
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公开(公告)号：US3769572A
公开(公告)日：1973-10-30
申请号：US3769572D
申请日：1971-01-18
Applicant: CALIFORNIA INST OF TECHN
Inventor： DOUBT L
Abstract: A two terminal current limiter is disclosed. The current limiter includes two (first and second) transistors and two resistors, one of which, acting as a sensing resistor, is connected in series with the collector-emitter path of the first transistor between the said two terminals. When sufficient voltage drop occurs across the sensing resistor, the second transistor is biased into conduction, which together with the second resistor, controls the biasing of the first transistor, thereby controlling the current flow therethrough.
Abstract translation: 公开了一种两端限流器。 电流限制器包括两个（第一和第二）晶体管和两个电阻器，其中一个用作感测电阻器，与所述两个端子之间的第一晶体管的集电极 - 发射极路径串联连接。 当跨感测电阻器发生足够的电压降时，第二晶体管被偏置为导通，其与第二电阻器一起控制第一晶体管的偏置，由此控制电流流过其中。
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公开(公告)号：US3742381A
公开(公告)日：1973-06-26
申请号：US3742381D
申请日：1971-06-09
Applicant: CALIFORNIA INST OF TECHN
Inventor： HURD W
CPC classification number: H03B29/00 , G06F7/584 , G06F2207/581 , G06F2207/583
Abstract: A wideband digital pseudo-gaussian noise generator is disclosed. It includes two feedback shift registers which provide maximal length pseudo noise sequences. Selected stages of the two registers are fed as inputs to 30 exclusive-OR gates, the stages being selected so that their outputs represent distinct phase shifts of a product sequence. The outputs of the gates are summed to provide the generator''s output which approximates gaussian noise over a useful bandwidth of 10MHz.
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