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    • 1. 发明申请
    • Methods and apparatus for processing recyclable containers
    • 处理可回收容器的方法和装置
    • US20080041996A1
    • 2008-02-21
    • US11481569
    • 2006-07-06
    • John ShawNorm TrudelMark Massey
    • John ShawNorm TrudelMark Massey
    • B02C1/08
    • B02C19/0093B02C19/0081
    • Methods and apparatus are provided for processing and densifying recyclable materials. In one embodiment, a recyclable container densification device is provided for reliably rendering a bar code of a recyclable container unreadable. In another embodiment, the densification device is reconfigurable to be able to produce different types of recovered material from recyclable containers. In another embodiment, a chute is provided that promotes the entry of recyclable materials into a densification device by dropping the materials directly thereon. An additional embodiment includes a recycling system manufactured from densification modules that can be assembled to in different numbers and mixes to meet the needs of different customers.
    • 提供了方法和装置,用于处理和致密化可回收材料。 在一个实施例中,提供可回收容器致密化装置,用于可靠地呈现可回收容器的条形码,其不可读。 在另一个实施例中,致密化装置是可重构的,以便能够从可循环使用的容器中产生不同类型的回收材料。 在另一个实施方案中,提供了一种滑槽,其通过直接在其上滴落材料来促进可再循环材料进入致密化装置。 另外的实施例包括由致密化模块制成的再循环系统,其可组装成不同的数量并混合以满足不同客户的需要。
    • 7. 发明授权
    • Multiplexable fiber-optic strain sensor system with temperature compensation capability
    • 具有温度补偿功能的多路复用光纤应变传感器系统
    • US06597822B1
    • 2003-07-22
    • US09286092
    • 1999-04-02
    • Behzad MoslehiRichard James BlackHerbert John ShawKeiichiro Toyama
    • Behzad MoslehiRichard James BlackHerbert John ShawKeiichiro Toyama
    • G02B600
    • G01L1/246G01B11/16G01D5/35316G01D5/35354G01D5/35387G02B6/02057G02B6/022G02B6/2932G02B6/29395G02B6/29398
    • A fiber optic sensor comprises two independent fibers having Bragg gratings which are coupled to commutating broadband optical sources through splitters and wavelength discriminators. The ratio of detected optical energy in each of two detectors examining the wave intensity returned to a wavelength discriminator coupled with the characteristic of the wavelength discriminator determines the wavelength returned by the grating. In another embodiment, tunable filters are utilized to detect minimum returned wave energy to extract a sensor wavelength. Reference to the original grating wavelength indicates the application of either temperature or strain to the grating. In another embodiment, a plurality of Bragg grating sensor elements is coupled to sources and controllers wherein a dimensional change in a fiber having a Bragg grating is detected using a measurement system comprising broad-band sources, optical power splitters, a high-sensitivity wavelength discriminator, optical detectors, and a controller.
    • 光纤传感器包括具有布拉格光栅的两个独立光纤,其通过分离器和波长鉴别器耦合到换向宽带光源。 两个检测器中检测到的光能的比率,检测返回到波长鉴别器的波强与波长鉴别器的特性相结合,确定了光栅返回的波长。 在另一个实施例中,可调谐滤波器用于检测最小返回波能量以提取传感器波长。 参考原始光栅波长表示对光栅施加温度或应变。 在另一个实施例中,多个布拉格光栅传感器元件耦合到源和控制器,其中使用包括宽带源,光功率分配器,高灵敏度波长鉴别器的测量系统检测具有布拉格光栅的光纤中的尺寸变化 ,光学检测器和控制器。
    • 10. 发明授权
    • Time domain multiplexed amplified sensor array with improved signal to
noise ratios
    • 具有改善的信噪比的时域多路复用放大传感器阵列
    • US5866898A
    • 1999-02-02
    • US814548
    • 1997-03-11
    • Craig W. HodgsonJefferson L. WagenerMichel J.F. DigonnetH. John Shaw
    • Craig W. HodgsonJefferson L. WagenerMichel J.F. DigonnetH. John Shaw
    • H01J5/16G01D5/353G01H9/00H04B10/17
    • H04B10/2939G01D5/35383G01H9/004
    • The present invention significantly improves the signal to noise ratio (SNR) in a passive optical array by adding erbium-doped optical amplifiers between the sensor couplings to offset the coupler splitting losses. Optical amplifiers are inserted between the sensor couplings along the signal path, and the gain of the amplifiers is designed to offset losses due to the previous coupling. The overall SNR can be maintained without significant degradation even for large numbers of sensors. In a first aspect of the present invention, the amplifiers are located along the distribution and return buses directly after the couplers, except possibly for the last sensor. In a second aspect of the present invention, the amplifiers are located directly before the couplers. The optical amplifiers preferably are made of short lengths of erbium-doped fiber spliced into the distribution and return buses. Improvements can be made to the SNR when the distribution bus coupling ratios are set at optimal values. The value of the optimal coupling ratio depends upon the amplifier configuration, the excess loss and other configuration parameters. In alternative embodiments, sensors are grouped into parallel configurations along the distribution and return buses to increase the number of sensors without a corresponding increase in the number of amplifiers and with an improvement in system performance to a certain point.
    • 本发明通过在传感器耦合之间添加掺铒光放大器来显着提高无源光学阵列中的信噪比(SNR),以抵消耦合器分离损耗。 光放大器被插入到沿着信号路径的传感器耦合之间,并且放大器的增益被设计成抵消由于先前的耦合引起的损耗。 即使对于大量的传感器也可以保持整体SNR而没有显着的降低。 在本发明的第一方面中,除了最后一个传感器之外,放大器沿着分配和返回总线直接位于耦合器之后。 在本发明的第二方面中,放大器直接位于耦合器之前。 光放大器优选地由拼接到分配和返回总线中的短长度的掺铒光纤制成。 当分配总线耦合比被设置为最佳值时,可以对SNR进行改进。 最佳耦合比的值取决于放大器配置,过剩损耗和其他配置参数。 在替代实施例中,传感器沿着分配和返回总线被分组成并行配置,以增加传感器的数量,而不会相应地增加放大器的数量,并且将系统性能提高到某一点。