Dual layer color-center patterned light source

    公开(公告)号:US07260127B2

    公开(公告)日:2007-08-21

    申请号:US10934251

    申请日:2004-09-03

    IPC分类号: H01S3/16 H01S3/14 H01S3/06

    摘要: A thin layer of ionic crystal is grown on a substrate. The crystal could be any type of ionic crystal, such as sodium chloride or potassium chloride. The crystal is a pure form of the chosen compound and may contain contaminants which would shift the wavelength of created color centers. On top of the first crystal layer, a second thin layer of a different type of crystal is deposited, such as lithium fluoride or sodium fluoride. When these two layers are radiated with gamma rays, they will each form color centers at the spots radiated. Because of the difference in crystalline properties of the two different ionic crystal centers, their color centers would be at different wavelengths. Each of the two separate ionic crystals will emit light at different characteristic wavelengths when illuminated at their unique absorption frequencies. Each layer can be made to lase separately. The top layer has an absorption energy greater than that of the bottom layer, so that the layer energy of the bottom layer absorption peak will pass through the top layer and be absorbed only by the bottom layer. There are many ways of forming F-centers in the two superimposed layers, such as by the use of selective gamma radiation by heating of an anion layer of the particular compound and then depositing the second ionic crystal on the first ionic crystal and then depositing an anion layer on the second crystal and then heating to produce a structure which will lase it to the different frequencies.

    Apparatus and methods for linearizing piezoresistive wheatstone bridges
    2.
    发明申请
    Apparatus and methods for linearizing piezoresistive wheatstone bridges 有权
    用于线性化压阻式惠斯通电桥的装置和方法

    公开(公告)号:US20070152679A1

    公开(公告)日:2007-07-05

    申请号:US11512598

    申请日:2006-08-30

    IPC分类号: G01R27/02

    CPC分类号: G01L9/0052 G01L9/06

    摘要: A pressure sensing apparatus including: at least one deflectable diaphragm having a center, wherein each diaphragm supports: at least one positive piezoresistive gauge and at least one negative piezoresistive gauge coupled in series across a voltage differential in a half-Wheatstone bridge configuration having an output between the positive and negative piezoresistive gauges; and, a compensating piezoresistive gauge coupled in series with the half-Wheatstone bridge configuration across the voltage differential; wherein, the compensating piezoresistive gauge is nearer the center of the diaphragm than the negative piezoresitive gauge, the negative piezoresitive gauge is nearer the center of the diaphragm than the positive piezoresitive gauge, and the compensating piezoresistive gauge linearizes the half-Wheatstone bridge output.

    摘要翻译: 一种压力感测装置,包括:至少一个具有中心的可偏转隔膜,其中每个隔膜支撑:至少一个正压阻计和至少一个负压阻力表,其串联连接在半惠斯通电桥配置中的电压差下, 正,负压阻计之间; 以及与跨越电压差的半惠斯通电桥配置串联耦合的补偿压阻表; 其中,补偿压阻计比阴极压力表更接近隔膜的中心,负压电测量计比正压电测量仪更靠近隔膜的中心,补偿压阻测量仪将半惠斯通电桥输出线性化。

    Dual layer color-center patterned light source
    3.
    发明授权
    Dual layer color-center patterned light source 失效
    双层彩色中心图案光源

    公开(公告)号:US06795465B2

    公开(公告)日:2004-09-21

    申请号:US10120698

    申请日:2002-04-11

    IPC分类号: H01S316

    摘要: A thin layer of ionic crystal is grown on a substrate. The crystal could be any type of ionic crystal, such as sodium chloride or potassium chloride. The crystal is a pure form of the chosen compound and may contain contaminants which would shift the wavelength of created color centers. On top of the first crystal layer, a second thin layer of a different type of crystal is deposited, such as lithium fluoride or sodium fluoride. When these two layers are radiated with gamma rays, they will each form color centers at the spots radiated. Because of the difference in crystalline properties of the two different ionic crystal centers, their color centers would be at different wavelengths. Each of the two separate ionic crystals will emit light at different characteristic wavelengths when illuminated at their unique absorption frequencies. Each layer can be made to lase separately. The top layer has an absorption energy greater than that of the bottom layer, so that the layer energy of the bottom layer absorption peak will pass through the top layer and be absorbed only by the bottom layer. There are many ways of forming F-centers in the two superimposed layers, such as by the use of selective gamma radiation by heating of an anion layer of the particular compound and then depositing the second ionic crystal on the first ionic crystal and then depositing an anion layer on the second crystal and then heating to produce a structure which will lase it to the different frequencies.

    摘要翻译: 在衬底上生长薄层的离子晶体。 该晶体可以是任何类型的离子晶体,例如氯化钠或氯化钾。 晶体是所选化合物的纯形式,并且可能含有污染物,这些污染物将使所产生的色心的波长发生偏移。 在第一晶体层的顶部,沉积不同类型晶体的第二薄层,例如氟化锂或氟化钠。 当这两层用伽马射线照射时,它们将在辐射的点处形成彩色中心。 由于两个不同的离子晶体中心的晶体性质的差异,它们的色心将处于不同的波长。 当以其独特的吸收频率照射时,两个分离的离子晶体中的每一个将发射不同特征波长的光。 每个层可以分开制作。 顶层的吸收能量大于底层的吸收能,使得底层吸收峰的层能量将通过顶层并且仅被底层吸收。 在两个叠加层中形成F中心的方法有很多种,例如通过加热特定化合物的阴离子层,然后将第二离子晶体沉积在第一离子晶体上,然后沉积 阴离子层在第二个晶体上,然后加热,以产生一个结构,将其延伸到不同的频率。

    Apparatus and methods for linearizing piezoresistive wheatstone bridges
    4.
    发明授权
    Apparatus and methods for linearizing piezoresistive wheatstone bridges 有权
    用于线性化压阻式惠斯通电桥的装置和方法

    公开(公告)号:US07714591B2

    公开(公告)日:2010-05-11

    申请号:US11512598

    申请日:2006-08-30

    IPC分类号: G01R27/02

    CPC分类号: G01L9/0052 G01L9/06

    摘要: A pressure sensing apparatus including: at least one deflectable diaphragm having a center, wherein each diaphragm supports: at least one positive piezoresistive gauge and at least one negative piezoresistive gauge coupled in series across a voltage differential in a half-Wheatstone bridge configuration having an output between the positive and negative piezoresistive gauges; and, a compensating piezoresistive gauge coupled in series with the half-Wheatstone bridge configuration across the voltage differential; wherein, the compensating piezoresistive gauge is nearer the center of the diaphragm than the negative piezoresitive gauge, the negative piezoresitive gauge is nearer the center of the diaphragm than the positive piezoresitive gauge, and the compensating piezoresistive gauge linearizes the half-Wheatstone bridge output.

    摘要翻译: 一种压力感测装置,包括:至少一个具有中心的可偏转隔膜,其中每个隔膜支撑:至少一个正压阻计和至少一个负压阻力表,其串联连接在半惠斯通电桥配置中的电压差下, 正,负压阻计之间; 以及与跨越电压差的半惠斯通电桥配置串联耦合的补偿压阻表; 其中,补偿压阻计比阴极压力表更接近隔膜的中心,负压电测量计比正压电测量仪更靠近隔膜的中心,补偿压阻测量仪将半惠斯通电桥输出线性化。

    Doubly compensated pressure transducer
    5.
    发明授权
    Doubly compensated pressure transducer 失效
    双重补偿压力传感器

    公开(公告)号:US06877379B2

    公开(公告)日:2005-04-12

    申请号:US10236279

    申请日:2002-09-06

    IPC分类号: G01L1/22 G01L9/04 G01L19/04

    CPC分类号: G01L1/2281 G01L9/065

    摘要: The present invention relates to a compensated pressure transducer having a pressure transducer connected to a coarse temperature adjustment compensator and to a fine temperature adjustment compensator. The coarse temperature adjustment compensator includes an analog circuit and the fine temperature adjustment compensator includes a digital circuit. A pre-amplifier is connected between the pressure transducer and the fine temperature adjustment compensator.

    摘要翻译: 本发明涉及一种补偿压力传感器,其具有连接到粗调温补偿器的压力传感器和精细温度调节补偿器。 粗调温补偿器包括模拟电路,微调温补偿器包括数字电路。 前置放大器连接在压力传感器和精细温度调节补偿器之间。