公开(公告)号：US5949082A

公开(公告)日：1999-09-07

申请号：US46051

申请日：1998-03-23

Applicant: W. Peter Schubert ,  G. Lamar Kirchhevel

Inventor： W. Peter Schubert ,  G. Lamar Kirchhevel

IPC: G01J3/10 ,  G01J3/28 ,  G01N21/35

CPC classification number: G01N21/3504 ,  G01J3/108 ,  G01J2003/2866

Abstract: A radiation source assembly is provided that is particularly apt for use in an anesthetic gas monitoring device (e.g., a gas spectrometer) to enhance maintenance of initial calibration conditions therewithin. In one embodiment a respiratory gas spectrometer includes a containment assembly that defines an internal containment area(s) within which a ceramic radiation source, an optical assembly, a sample gas assembly, and a radiation detection assembly are positioned. The radiation source assembly is provided for positioning and supporting the ceramic radiation source relative to the optical assembly within an internal containment area of the gas monitor. The radiation source assembly provides for enhanced sealing between the ceramic radiation source and adjoining componentry. The radiation source assembly is selectively retractable from the containment assembly to permit periodic servicing (e.g., replacement of the radiation source) without requiring disassembly of the gas spectrometer.

Abstract translation: 提供了一种辐射源组件，其特别适用于麻醉气体监测装置（例如，气体光谱仪）中以增强其中的初始校准条件的维持。 在一个实施例中，呼吸气体光谱仪包括容纳组件，其限定内部容纳区域，陶瓷辐射源，光学组件，样品气体组件和放射线检测组件定位在内部容纳区域内。 提供辐射源组件用于在气体监测器的内部容纳区域内相对于光学组件定位和支撑陶瓷辐射源。 辐射源组件提供陶瓷辐射源与相邻组件之间的增强的密封。 辐射源组件可从容纳组件选择性地收回，以允许定期维修（例如，更换辐射源）而不需要拆卸气体光谱仪。

公开(公告)号：US5827438A

公开(公告)日：1998-10-27

申请号：US754128

申请日：1996-11-22

Applicant: Martti Blomberg ,  Altti Torkkeli ,  Stefan Lindblad ,  Ari Lehto

Inventor： Martti Blomberg ,  Altti Torkkeli ,  Stefan Lindblad ,  Ari Lehto

IPC: G01N21/01 ,  G01J1/08 ,  G01J3/10 ,  G01N21/35 ,  H01K1/00 ,  H01K7/00 ,  H05B3/12 ,  H05B3/16 ,  H05B3/00

CPC classification number: H01K7/00 ,  G01J3/108 ,  H01K1/00 ,  H05B3/12 ,  H05B3/16

Abstract: The invention is related to an electrically modulatable thermal radiant source with a multilayer structure. The radiant source includes a substrate, a first insulating layer formed onto the substrate, a radiant surface layer formed onto the first insulating layer, a second insulating layer formed on the radiant surface layer, a first metallization (incandescent filament) layer formed on the second insulating layer, a third insulating layer formed on the first metallization layer, and a second metallization layer for contacting formed on the third insulating layer. According to the invention, very thin incandescent filaments are formed from the first metallization layer and surrounded by the other elements of the multilayer structure as a uniform, planar plate.

Abstract translation: 本发明涉及具有多层结构的可电调制热辐射源。 辐射源包括基板，形成在基板上的第一绝缘层，形成在第一绝缘层上的辐射表面层，形成在辐射表面层上的第二绝缘层，形成在第二绝缘层上的第一金属化（白炽灯丝）层 绝缘层，形成在第一金属化层上的第三绝缘层和形成在第三绝缘层上的第二接触金属化层。 根据本发明，从第一金属化层形成非常薄的白炽灯丝，并被多层结构的其它元件围绕成均匀的平板。

公开(公告)号：US5401966A

公开(公告)日：1995-03-28

申请号：US115535

申请日：1993-09-02

Applicant: Damien F. Gray ,  Richard J. Plttaro ,  Paul K. Lum

Inventor： Damien F. Gray ,  Richard J. Plttaro ,  Paul K. Lum

IPC: A61B5/083 ,  G01J3/10 ,  G01N21/35 ,  G01N21/61

CPC classification number: A61B5/0836 ,  G01J3/108 ,  G01N21/3504 ,  G01N2021/3174 ,  G01N2201/0636

Abstract: A spectrophotometric sensor assembly that may find particular use in a capnometer, a medical device for measuring the concentration of carbon dioxide in the exhaled breath of a patient, includes at least one microlamp. A microlamp is a very small source of electromagnetic radiation including a heated filament disposed over a substrate. The microlamp may be constructed using semiconductor fabrication techniques. The microlamp typically emits broad-band infrared radiation. Radiation from the microlamp usually passes through a filter, which preferentially transmits radiation of a preselected wavelength. The radiation then passes through a sample chamber and onto a detector. The concentration of a substance of interest within the chamber may be computed by determining the degree to which the radiation is absorbed in the chamber. In a preferred embodiment, an array of microlamps is sequentially triggered in a rapid manner.

Abstract translation: 一种分光光度传感器组件，其可以在电位计中找到特别的用途，该测量计是用于测量患者呼出气中的二氧化碳浓度的医疗装置，包括至少一个微型灯。 微型电灯是非常小的电磁辐射源，包括设置在衬底上的加热灯丝。 可以使用半导体制造技术来构造微型灯。 微型荧光灯通常发射宽带红外辐射。 来自微量放大器的辐射通常通过滤光器，滤光器优先传输预选波长的辐射。 然后，辐射通过样品室并进入检测器。 室内感兴趣的物质的浓度可以通过确定辐射在腔室中被吸收的程度来计算。 在优选实施例中，以快速方式顺序地触发微阵列。

公开(公告)号：US5285131A

公开(公告)日：1994-02-08

申请号：US621678

申请日：1990-12-03

Applicant: Richard S. Muller ,  Carlos H. Mastrangelo

Inventor： Richard S. Muller ,  Carlos H. Mastrangelo

IPC: G01J3/10 ,  G01P15/08 ,  G03F7/00 ,  H01J9/02 ,  H01J21/10 ,  H01J61/30 ,  H01K1/04 ,  H01K1/12 ,  H01K1/28 ,  H01K3/00 ,  H01K7/04 ,  H01K13/00 ,  H01K1/02 ,  H01K1/50

CPC classification number: H01J9/02 ,  G01J3/108 ,  G01P15/0894 ,  G03F7/00 ,  H01J21/105 ,  H01J61/30 ,  H01K1/04 ,  H01K1/12 ,  H01K1/28 ,  H01K13/00 ,  H01K3/00 ,  H01K7/04

Abstract: A microlamp including a polysilicon filament coated with a protective layer and enclosed by a window in a vacuum-sealed cavity.

Abstract translation: 包括涂覆有保护层并由真空密封空腔中的窗户包围的多晶硅细丝的微型灯。

公开(公告)号：US5160843A

公开(公告)日：1992-11-03

申请号：US731971

申请日：1991-07-18

Applicant: Ari Lehto

Inventor： Ari Lehto

IPC: G01N9/24 ,  G01J3/10 ,  G01N21/35

CPC classification number: G01J3/108 ,  G01N21/3504 ,  G01N2201/06173

Abstract: An apparatus and method measures the concentration of a gas. The apparatus comprises a radiation source (70) for emitting radiation onto the gas (79) to be measured, whereby the radiation source (70) is comprised of an anode (4) and a cathode (9), and as an emitting fill gas the same as the gas (79) to be measured; and a radiation detector (74) with which the radiation transmitted through the gas (79) to be measured can be detected. The cathode (9) functions as an electron emitter, and between the anode (4) and the cathode is connected such a low operating voltage that does not cause ionization or essential dissociation of the emitting gas. The design provides an approximate temperature tracking of the radiation source with the ambient temperature.

公开(公告)号：US4954718A

公开(公告)日：1990-09-04

申请号：US361487

申请日：1989-06-05

Applicant: Hans Mattheissen

Inventor： Hans Mattheissen

IPC: G01J3/10 ,  G01N21/01 ,  G01N21/3504 ,  H05B39/09

CPC classification number: G01J3/108 ,  G01N21/3504

Abstract: A circuit arrangement for providing a pulse modulated power feed to an infrared radiation source is disclosed. The radiation of the radiation source is detectable by a receiver and the circuit arrangement is improved such that the radiation source is as independent as possible from its radiation characteristics as well as from its thermal characteristics and can deliver a rapid and easily processable measuring signal to the receiver uninfluenced by ambient conditions. For this purpose, the power feed is controllable by means of a control unit during the pulse duration to an upper temperature desired value To and, during the no-pulse period, the power supply is controllable to a lower temperature desired value Tu with the alternation between the two desired values being triggered by a pulse generator connected to a desired value input of the control unit.

Abstract translation: 公开了一种用于向红外辐射源提供脉冲调制功率馈电的电路装置。 辐射源的辐射可由接收器检测，并且电路装置被改进，使得辐射源尽可能独立于其辐射特性以及其热特性，并且可以将快速且容易处理的测量信号传送到 接收器不受环境条件的影响。 为此，通过控制单元在脉冲持续期间到上限温度期望值To期间可以控制供电，并且在无脉冲周期期间，电源可控制到具有交替的较低温度期望值Tu 两个期望值之间由连接到控制单元的期望值输入的脉冲发生器触发。

公开(公告)号：US4859859A

公开(公告)日：1989-08-22

申请号：US24769

申请日：1987-03-11

Applicant: Daniel W. Knodle ,  William E. Crone

Inventor： Daniel W. Knodle ,  William E. Crone

IPC: A61B5/083 ,  A61B5/097 ,  G01J1/02 ,  G01J1/18 ,  G01N21/31 ,  G01N21/35

CPC classification number: G01J3/108 ,  A61B5/0836 ,  A61B5/097 ,  G01J3/02 ,  G01J3/0286 ,  G01N21/3504 ,  A61M16/04 ,  A61M2016/102 ,  G01J2001/182 ,  G01N2021/3166 ,  G01N2201/06186 ,  G01N2201/1218

Abstract: Gas analyzers of the non-dispersive infrared radiation type which are designed to measure the concentration of one gas in a mixture of gases containing that gas. A novel, electrically modulated, stable, thick film infrared radiation emitter is employed to emit a beam of collimated, focused energy; and two electrically biased detectors are preferably used so that a ratioed, error eliminating output signal can be supplied to the failsafe, signal processing circuitry of the analyzer. The latter, and a conventional analog-to-digital convertor, supply information to a microcomputer which: (1) turns the infrared radiation emitter on and off; (2) controls a heater which keeps the infrared radiation detectors at a constant, precise temperature; and (3) controls displays of a variety of information concerning the gas being measured and the status of the gas analyzer. The microcomputer also accepts ambient temperature, barometric pressure, and other compensation factors. Typically, a disposable airway adapter will be included in the gas analyzer to confine the mixture of gases being analyzed to a path having a transverse dimension of precise and specific length and to provide an optical path across that stream of gases between the infrared radiation emitter and the infrared radiation detectors. The emitter and detectors are incorporated in a transducer head which can be detachably fixed to the airway adapter.

公开(公告)号：US4780613A

公开(公告)日：1988-10-25

申请号：US909706

申请日：1986-09-22

Applicant: Lawrence S. Berstein ,  Michael W. Matthew ,  Fritz Bien

Inventor： Lawrence S. Berstein ,  Michael W. Matthew ,  Fritz Bien

IPC: G01J3/10 ,  G01N21/35 ,  H01J65/04

CPC classification number: G01J3/108 ,  G01N21/3504 ,  G01N2201/06173

Abstract: An infrared species specific emission source which includes a closed container having at least one transparent portion for containing at least one specific molecular species. The molecular species within the container is heated sufficiently to cause the species to emit a characteristic infrared spectal emission through the at least one transparent portion of the container to the infrared instrument.

Abstract translation: 一种红外物质特异性发射源，其包括具有至少一个用于含有至少一种特定分子种类的透明部分的密闭容器。 将容器内的分子种类充分加热，使物质通过容器的至少一个透明部分向红外线仪器发出特征红外光谱发射。

公开(公告)号：US4724329A

公开(公告)日：1988-02-09

申请号：US539487

申请日：1983-10-06

Applicant: Walter M. Doyle ,  John R. Gentile

Inventor： Walter M. Doyle ,  John R. Gentile

IPC: G01J3/10 ,  G01J3/453 ,  G21G4/00

CPC classification number: G01J3/453 ,  G01J3/108 ,  G01N2201/065

Abstract: The present invention provides a radiation source which essentially matches the throughput radiation of the source to the throughput radiation of the interferometer; and it provides the maximum throughput usable by the interferometer with a minimum use of power at the source. The infrared source in this invention combines a radiating element having the optimum area with a hollow, inwardly-reflecting sphere, whose center is at the radiating element and whose exterior has a single aperture which causes radiation to fill the entrance field of view of the spectrometer.

Abstract translation: 本发明提供一种辐射源，其基本上将源的吞吐量辐射与干涉仪的吞吐量辐射相匹配; 并且其提供了干扰计可用的最大吞吐量，其中源的功率最小。 本发明中的红外源将具有最佳区域的辐射元件与中空位于辐射元件的中空的向内反射的球体组合，并且其外部具有单个孔径，从而使辐射填充光谱仪的入射视野 。

公开(公告)号：US4467213A

公开(公告)日：1984-08-21

申请号：US392841

申请日：1982-06-28

Applicant: Carl A. Farren

Inventor： Carl A. Farren

IPC: G01J3/10 ,  G01N21/35 ,  G01J1/00

CPC classification number: G01J3/108 ,  G01N21/3504

Abstract: An improved source assembly for use in infrared gas analysis instruments. A rotating reflector having a generally conical shape is provided with a reflective interior surface. An infrared source directs infrared radiation against the reflector from a predetermined number of fixed directions each of which is generally perpendicular to its axis. One or more blocking members, which are aligned generally parallel to the axis of the reflector, pass between the source and the reflective surface as the reflector is rotated. In operation the source assembly generates a plurality of chopped beams of infrared radiation which, because they emanate from a single source and are reflected from the same reflective surface, have a highly uniform intensity. This uniformity of intensity allows the source assembly to illuminate a plurality of sample cells that are distributed circumferentially about the axis of the reflector. The result is an instrument having improved response at a cost that is less than that of a source assembly that includes multiple infrared sources.

Abstract translation: 用于红外气体分析仪器的改进的源组件。 具有大致圆锥形状的旋转反射器设置有反射内表面。 红外光源从预定数量的固定方向引导红外辐射，每个固定方向大致垂直于其轴线。 当反射器旋转时，大致平行于反射器的轴线排列的一个或多个阻挡构件在源极和反射表面之间通过。 在操作中，源组件产生多个斩波的红外辐射束，由于它们从单个源发出并且从相同的反射表面反射，所以其具有高度均匀的强度。 强度的这种均匀性允许源组件照亮围绕反射器的轴线周向分布的多个样品池。 结果是具有比包括多个红外源的源组件的成本更低的成本具有改进的响应的仪器。