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40 条记录 (耗时 0.025 秒)

    Portable electrometric apparatus for roadside analysis of automotive exhaust emission
    1.
    发明授权
    Portable electrometric apparatus for roadside analysis of automotive exhaust emission 失效
    便携式电动仪器，用于汽车废气排放的路边分析

    公开(公告)号：US5831742A

    公开(公告)日：1998-11-03

    申请号：US659328

    申请日：1996-06-06

    申请人： Joseph Watson ,  Reza Tamadoni ,  Barbara L. Jones ,  Kenneth W. Peter ,  Thomas F. Wylie

    发明人： Joseph Watson ,  Reza Tamadoni ,  Barbara L. Jones ,  Kenneth W. Peter ,  Thomas F. Wylie

    IPC分类号： G01N21/78 ,  G01J3/08

    CPC分类号： G01N21/783

    摘要： A method and apparatus for instantaneously measuring the level of carbon dioxide (and other gases) in automotive combustion exhaust analysis is provided in the form of a portable battery driven roadside diagnostic instrument in which the CO.sub.2 level is measured by a calorimetric technique utilizing light as the energy source and a piezoelectric bimorph to vibrate a single fiber-optic element to multiplex between two fiber-optic receptors delivering the light to a measurement cell and a reference cell. The measurement cell comprises a salt of an acid-base indicator dye which provides proportional color change on contact with CO.sub.2. The dye is supported on a polymetric film in the cell.

    摘要翻译： 以便携式电池驱动的路边诊断仪器的形式提供用于瞬时测量汽车燃烧排气分析中的二氧化碳（和其他气体）的水平的方法和装置，其中通过使用光作为测量的量热技术来测量CO 2水平 能量源和压电双压电晶片，以振动单个光纤元件以将两个光纤传感器之间的光纤传递到测量单元和参考单元。 测量单元包括酸碱指示剂染料的盐，其在与CO 2接触时提供成比例的颜色变化。 染料负载在电池中的聚甲醛膜上。

    Testing vehicle tires
    3.
    发明授权
    Testing vehicle tires 失效
    测试车胎

    公开(公告)号：US5837897A

    公开(公告)日：1998-11-17

    申请号：US686964

    申请日：1996-07-25

    申请人： Barbara L. Jones ,  Thomas F. Wylie

    发明人： Barbara L. Jones ,  Thomas F. Wylie

    IPC分类号： G01L17/00 ,  G01M17/02 ,  G01N29/20

    CPC分类号： G01L17/00 ,  G01M17/025

    摘要： There is disclosed a method and apparatus for testing inflated vehicle tires to determine internal physical characteristics such as tire pressure. The apparatus includes a waveform transceiver for subjecting a tire to be tested to a transmitted waveform and for transmitting an ultrasonic waveform from a location external to the tire under test and for receiving the ultrasonic waveform from a tire under test at a location external thereto; and a processor for interpreting the received waveform with reference to the decay or attenuation of the amplitude of the waveform with time to provide a measure of the internal physical characteristic.

    摘要翻译： 公开了一种用于测试充气车辆轮胎以确定诸如轮胎压力的内部物理特性的方法和装置。 该装置包括：波形收发器，用于使轮胎经受测试，发送波形，并从被测轮胎外部的位置发送超声波波形;以及用于从外部的位置接收来自被测轮胎的超声波形; 以及用于解释所接收的波形的处理器，其参考随时间推移的波形幅度的衰减或衰减来提供内部物理特性的量度。

    Method and apparatus for analysis of particulate content of gases
    4.
    发明授权
    Method and apparatus for analysis of particulate content of gases 失效
    用于分析气体颗粒物含量的方法和装置

    公开(公告)号：US5892141A

    公开(公告)日：1999-04-06

    申请号：US753105

    申请日：1996-11-20

    申请人： Barbara L. Jones ,  Kenneth W. Peter

    发明人： Barbara L. Jones ,  Kenneth W. Peter

    IPC分类号： G01N1/22 ,  G01N5/04 ,  G01N15/06 ,  G01N27/00 ,  G01N29/02

    CPC分类号： G01N29/036 ,  G01N1/2202 ,  G01N15/0618 ,  G01N15/0656 ,  G01N5/04 ,  G01N2001/2223 ,  G01N2291/0256

    摘要： A method and apparatus for analysis of particulate content of gases, applicable to the quantitative and qualitative analysis of vehicle engine emissions, includes sampling, removing particles and analysis of the removed particles. Sampling is effected by electrostatic precipitation using a catalyst-coated piezoelectric crystal. The analysis of the removed particles is effected by heating the crystal in an oxidizing atmosphere to oxidize the deposited particles. Connection of the crystal to an oscillation circuit enables the frequency of oscillation of the crystal to be monitored. Changes in the frequency of oscillation are interpreted to provide quantitative and qualitative analysis of particles deposited and subsequently oxidized.

    摘要翻译： 用于分析气体颗粒物含量的方法和装置，适用于车辆发动机排放的定量和定性分析，包括取样，除去颗粒和分离除去的颗粒。 使用催化剂涂覆的压电晶体通过静电沉淀实现取样。 去除的颗粒的分析通过在氧化气氛中加热晶体以氧化沉积的颗粒来实现。 将晶体连接到振荡电路可以监测晶体的振荡频率。 解释振荡频率的变化可提供定量和定性分析沉积并随后被氧化的颗粒。

    Method and apparatus for analyzing catalyst and other systems operations
    6.
    发明授权
    Method and apparatus for analyzing catalyst and other systems operations 失效
    用于分析催化剂和其他系统操作的方法和装置

    公开(公告)号：US5869743A

    公开(公告)日：1999-02-09

    申请号：US797881

    申请日：1997-02-10

    申请人： Barbara L. Jones ,  Kenneth W. Peter ,  Marcus J. Hawkins

    发明人： Barbara L. Jones ,  Kenneth W. Peter ,  Marcus J. Hawkins

    IPC分类号： F01N11/00 ,  G01M15/10 ,  G01N33/00 ,  F01N3/20

    CPC分类号： F01N11/00 ,  G01M15/102 ,  G01N33/0062 ,  F01N2550/02 ,  Y02T10/47

    摘要： A method of analyzing exhaust gas emissions from an internal combustion engine is modified by the provision of a data process or connected to an exhaust gas analyzer and adapted to monitor changes in exhaust gas concentrations and to identify changes indicative of the state of operation of a catalytic system provided in the engine exhaust delivery system. The catalyst-on condition is identified by reference to the characteristic shape of the plot of the gas concentrations against time. Similar identification of catalyst-off conditions is provided by corresponding analysis of concentration changes and concentration values. The system can distinguish between various causes of the catalyst-off condition.

    摘要翻译： 通过提供数据处理或连接到废气分析器来调节来自内燃机的废气排放的分析方法，该方法适用于监测废气浓度的变化并且识别指示催化剂的运行状态的变化 在发动机排气系统中提供的系统。 通过参考气体浓度对时间图的特征形状来确定催化剂开启条件。 通过对浓度变化和浓度值的相应分析提供催化脱除条件的相似鉴定。 该系统可以区分催化剂脱离状态的各种原因。

    Diamond neutron detector
    8.
    发明授权
    Diamond neutron detector 失效
    金刚石中子探测器

    公开(公告)号：US5216249A

    公开(公告)日：1993-06-01

    申请号：US772279

    申请日：1991-10-07

    申请人： Barbara L. Jones ,  Tom L. Nam ,  Rex J. Keddy

    发明人： Barbara L. Jones ,  Tom L. Nam ,  Rex J. Keddy

    IPC分类号： G01T3/00 ,  G01T3/08

    CPC分类号： G01T3/08

    摘要： A neutron detector is formed from a layer of polycrystalline diamond which is deposited by a chemical vapor deposition process. The diamond material contains .sup.10 B as a dopant, in a concentration of 1,000 ppm or less. In one embodiment, the layer of diamond material is deposited on a supporting substrate. Advantageously, the substrate itself may comprise a layer of diamond material. In another embodiment, the substrate comprises a layer of conductive or semiconductive material. The diamond material is deposited on top of the substrate, with at least two regions in contact with the semiconductive material. A central portion of the semiconductive material is etched away, and electrical contacts are applied to the remaining portions of the semiconductive substrate. An advantage of the neutron detector of the invention is that the diamond layer is very thin, less than 50 .mu.m thick, so that the sensitivity of the detector to other radiation, particularly .gamma. radiation, is reduced.

    Manufacturing diamond electronic devices
    9.
    发明授权
    Manufacturing diamond electronic devices 失效
    制造钻石电子设备

    公开(公告)号：US5114871A

    公开(公告)日：1992-05-19

    申请号：US356773

    申请日：1989-05-24

    申请人： Barbara L. Jones

    发明人： Barbara L. Jones

    IPC分类号： H01L21/027 ,  H01L21/04 ,  H01L29/16

    CPC分类号： H01L29/1602 ,  H01L21/0274 ,  H01L29/66045 ,  Y10S148/10

    摘要： The invention provides a process for manufacturing an electronic device on a semiconducting substrate which is transparent to light of a particular wavelength. The process includes the steps of treating the substrate to form at least one region having a different electrical property to the substrate, and defining a conducting contact for the region by selective photolithographic masking and chemical etching. A layer of photoresist material deposited on one side of the substrate is subjected to light transmitted through the substrate from a light source on the other side of the substrate. The process can be used to produce a field effect transistor on a diamond substrate.

    Radiation detector
    10.
    发明授权
    Radiation detector 失效
    辐射检测器

    公开(公告)号：US5055686A

    公开(公告)日：1991-10-08

    申请号：US474345

    申请日：1990-02-02

    申请人： Barbara L. Jones

    发明人： Barbara L. Jones

    IPC分类号： G01T1/24 ,  G01T1/26 ,  H01L31/09 ,  H01L31/14

    CPC分类号： G01T1/26 ,  G01T1/246

    摘要： A composite radiation detection and indicating device comprises first, third and fifth layers of a transparent conductive material, a second layer of semiconductive diamond between the first and third layers, and a fourth layer of liquid crystal material between the third and fifth layers. The layers are sandwiched together so that a diodic structure having a radiation-dependent charge storage characteristic is defined by the first, second and third layers, and a liquid crystal display element is defined by the third, fourth and fifth layers. The invention extends to a radiation detector including the composite device, together with an oscillator for applying a charge to the diodic structure, and a sensor for monitoring the decay of the stored charge. A voltage is applied to the liquid crystal display element to cause it to change state when the charge stored by the diodic structure decays below a predetermined limit.

    摘要翻译： 复合辐射检测和指示装置包括透明导电材料的第一，第三和第五层，第一和第三层之间的第二层半导体金刚石，以及第三层和第五层之间的第四层液晶材料。 这些层被夹在一起，使得具有与辐射有关的电荷存储特性的二极体结构由第一，第二和第三层限定，液晶显示元件由第三层，第四层和第五层限定。 本发明延伸到包括复合器件的放射线检测器以及用于向二极体结构施加电荷的振荡器以及用于监测存储电荷的衰减的传感器。 当由二元结构存储的电荷衰减到预定极限以下时，向液晶显示元件施加电压使其变化。