Gas detection apparatus using a combined infrared source and high temperature bolometer
    21.
    发明授权
    Gas detection apparatus using a combined infrared source and high temperature bolometer 有权
    气体检测装置采用组合式红外光源和高温辐射热计

    公开(公告)号:US06373056B1

    公开(公告)日:2002-04-16

    申请号:US09555861

    申请日:2001-02-01

    Abstract: An improved gas detector apparatus includes a spectral source/bolometer for conducting an electrical current and for producing infrared radiation. The source/bolometer has a characteristic resistance that is a predetermined function of the source/bolometer temperature. A concentrating reflector directs the infrared radiation through a spectral filter and the gas. A return reflector is disposed along the axis beyond the spectral filer and the gas, such that at least a portion of the infrared radiation passing through the filter and the gas is reflected back through the gas and the filter to the source/bolometer. A driver/detector drives a current through the source/bolometer, determines the characteristic resistance of the source/bolometer, and detects the gas from a variation of the characteristic resistance.

    Abstract translation: 一种改进的气体检测器装置包括用于传导电流并用于产生红外辐射的光谱源/辐射热计。 源/测辐射热计具有作为源/测辐射热计温度的预定功能的特性电阻。 聚光反射器通过光谱滤光器和气体引导红外辐射。 返回反射器沿轴线设置在光谱滤光器和气体之外,使得通过过滤器和气体的至少一部分红外辐射通过气体和滤光器反射回到源/测辐射热计。 驱动器/检测器驱动通过源/测辐射热计的电流,确定源/测辐射热计的特征电阻,并从特征电阻的变化中检测气体。

    Tunable photonic crystal
    23.
    发明授权
    Tunable photonic crystal 有权
    可调光子晶体

    公开(公告)号:US07825380B2

    公开(公告)日:2010-11-02

    申请号:US12389239

    申请日:2009-02-19

    Abstract: An infrared emitter, which utilizes a photonic crystal (PC) structure to produce electromagnetic emissions with a narrow hand of wavelengths, includes a semiconductor material layer, a dielectric material layer overlaying the semiconductor material layer, and a metallic material layer having an inner side overlaying the dielectric material layer. The semiconductor material layer is capable of being coupled to an energy source for introducing energy to the semiconductor material layer. An array of surface features are defined in the device in a periodic manner or quasi-periodic. The emitter device is adapted to emit electromagnetic energy having spectral characteristics determined by parameters of the periodically distributed surface features, the parameters including shape, size, depth, distribution geometry, periodicity, material properties and defects.

    Abstract translation: 使用光子晶体(PC)结构来产生具有窄波长的手的电磁发射的红外发射器包括半导体材料层,覆盖半导体材料层的介电材料层和具有内侧覆盖层的金属材料层 介电材料层。 半导体材料层能够耦合到能量源以将能量引入到半导体材料层。 表面特征的阵列以周期性或准周期性方式在器件中定义。 发射器件适于发射具有通过周期性分布的表面特征的参数确定的光谱特性的电磁能,参数包括形状,尺寸,深度,分布几何形状,周期性,材料性质和缺陷。

    Infrared radiation filament and method of manufacture
    24.
    发明授权
    Infrared radiation filament and method of manufacture 有权
    红外辐射灯丝及其制造方法

    公开(公告)号:US06249005B1

    公开(公告)日:2001-06-19

    申请号:US09190843

    申请日:1998-11-12

    CPC classification number: G01J3/108 H05B2203/003

    Abstract: An improved IR radiation source is provided by the invention. A radiation filament has a textured surface produced by seeded ion bombardment of a metal foil which is cut to a serpentine shape and mounted in a windowed housing. Specific ion bombardment texturing techniques tune the surface to maximize emissions in the desired wavelength range and to limit emissions outside that narrow range, particularly at longer wavelengths. A combination of filament surface texture, thickness, material, shape and power circuit feedback control produce wavelength controlled and efficient radiation at much lower power requirements than devices of the prior art.

    Abstract translation: 本发明提供改进的红外辐射源。 辐射丝具有通过金属箔的接种离子轰击产生的纹理表面,金属箔被切割成蛇形形状并且安装在窗户壳体中。 特定的离子轰击纹理技术调谐表面以使期望波长范围内的发射最大化并限制在窄范围之外的发射,特别是在较长波长下。 长丝表面纹理,厚度,材料,形状和功率电路反馈控制的组合产生比现有技术的器件低得多的功率要求的波长控制和有效的辐射。

    Mechanism for measuring device
    25.
    发明授权
    Mechanism for measuring device 有权
    测量装置机构

    公开(公告)号:US06234972B1

    公开(公告)日:2001-05-22

    申请号:US09400224

    申请日:1999-09-21

    CPC classification number: G01L7/063 G01L7/068

    Abstract: A gage mechanism for a blood pressure measuring device or other similar apparatus includes a supported shaft member having one end in contact with an inflatable bellows. A pointer is attached at an opposite end of the shaft and a helically wound spring is attached to the shaft and a supporting structure. As the bellows inflates, the shaft is axially displaced and causes rotation due to the constraint of the helical ribbon spring, causing a corresponding angular deflection of the attached pointer relative to an indicating scale. The mechanism includes a first adjustment member for allowing the pointer to be preset to a zero or calibrated position, and a second adjustment mechanism that controls the amount of angular rotation of the shaft and pointer for a displacement of the bellows.

    Abstract translation: 用于血压测量装置或其它类似装置的计量机构包括具有与可充气波纹管接触的一端的支撑轴构件。 指针安装在轴的相对端,并且螺旋缠绕的弹簧附接到轴和支撑结构。 当波纹管膨胀时,轴被轴向移位并且由于螺旋形带状弹簧的约束而引起旋转,导致附接的指针相对于指示标尺的相应的角度偏转。 该机构包括用于允许指针被预设为零或校准位置的第一调节构件,以及用于控制波纹管位移的轴和指针的角度旋转量的第二调节机构。

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