会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明申请
    • DETECTORS, SYSTEM AND METHOD FOR DETECTING IONIZING RADIATION USING HIGH ENERGY CURRENT
    • 使用高能量电流检测离子辐射的检测器,系统和方法
    • WO2015179858A1
    • 2015-11-26
    • PCT/US2015/032393
    • 2015-05-26
    • BRIGHAM AND WOMEN'S HOSPITAL, INC.
    • ZYGMANSKI, PiotrSAJO, Erno
    • G01T1/208G01T1/28G01N27/66
    • G01T1/208G01T1/185G01T1/28
    • Detectors, a system and a method for detecting ionizing radiation are provided. In some aspects, a detector includes a first layer comprising a first conducting material, and a second layer comprising a second conducting material, wherein at least one of the first layer and second layer is configured to produce secondary particles upon irradiation by an ionizing radiation. The detector also includes a separating layer positioned between the first and second layer configured to transport therebetween at least one of charges associated with the secondary particles and charges produced by the secondary particles, wherein an electric current generated by the charges, and collected between the first and second layer, is indicative of properties the ionizing radiation.
    • 提供了检测器,一种用于检测电离辐射的系统和方法。 在一些方面,检测器包括包括第一导电材料的第一层和包括第二导电材料的第二层,其中第一层和第二层中的至少一个被配置为在通过电离辐射照射时产生二次颗粒。 检测器还包括位于第一和第二层之间的分离层,其被配置为在其之间传送与二次粒子相关的电荷和由次级粒子产生的电荷中的至少一个,其中由电荷产生的电流并且在第一和第二 和第二层,表明电离辐射的性质。
    • 5. 发明申请
    • DIFFERENTIAL CURRENT MEASUREMENTS TO DETERMINE ION CURRENT IN THE PRESENCE OF LEAKAGE CURRENT
    • 泄漏电流存在时确定离子电流的差分电流测量
    • WO2013052622A3
    • 2013-06-20
    • PCT/US2012058688
    • 2012-10-04
    • MICROCHIP TECH INC
    • JULICHER JOSEPHCURTIS KEITHKATZ PAUL N
    • G01N27/66G08B17/11
    • G08B17/11G01N27/66G08B17/113
    • An ion chamber provides a current representative of its characteristics as affected by external conditions, e.g., clean air or smoke. A direct current (DC) voltage is applied to the ion chamber at a first polarity and the resulting current through the ion chamber and parasitic leakage current is measured at the first polarity, then the DC voltage is applied to the ion chamber at a second polarity opposite the first polarity, and the resulting current through the ion chamber and parasitic leakage current is measured at the second polarity. Since substantially no current flows through the ion chamber at the second polarity, the common mode parasitic leakage current contribution may be removed from the total current measurement by subtracting the current measured at the second polarity from the current measured at the first polarity, resulting in just the current through the ion chamber.
    • 离子室提供代表其受外部条件(例如清洁空气或烟雾)影响的其特性的电流。 直流(DC)电压以第一极性施加到离子室,并且通过离子室产生的电流和寄生漏电流以第一极性被测量,然后将直流电压以第二极性施加到离子室 与第一极性相反,并且在第二极性处测量通过离子室的所得电流和寄生漏电流。 由于基本上没有电流以第二极性流过离子室,所以可以从总电流测量中去除从第一极性测得的电流以第二极性测量的电流来消除共模寄生漏电流贡献,从而产生正好 电流通过离子室。
    • 10. 发明申请
    • AN INTEGRATED PHOTOIONIZATION SENSOR
    • WO2006012777A1
    • 2006-02-09
    • PCT/CN2004/000905
    • 2004-08-06
    • G01N27/66
    • G01N27/66H01J41/02
    • The invention provides an integrated photoionization sensor (10), which includes not only an ionization chamber (36), an ultraviolet (UV) lamp (32), driving electrodes (40, 42), and an ionization detector (48), but also general circuits, such as a lamp driving circuit (44) and a bias circuit (54). Said photoionization sensor of present invention includes a support element (230), which separates the space within a sensor housing into two parts. Said ionization chamber (36), said ultraviolet (UV) lamp (32), said driving electrodes (40, 42), and said ionization detector (48) are disposed in one of the two parts, and the general circuits are integrated in a circuit board (95) disposed in the other part. The space where the circuit board (95) lies is filled with a sealing adhesive to avoid contacting with the outwards. The top cover of he sensor housing is provided with a single big hole or fence or net shape ventilating window, so the sensor (10) fits both for a gas pumping mode, and for a diffusion mode. In the case that the sensor (10) s not taken apart, Said ventilating window permits the optical window (34) of UV lamp (32) being leaned without using an air pump. Said circuit board is also integrated with a photosensor (20), so the UV lamp's working states can be known without dismounting the sensor (10).