公开(公告)号：US06573489B1

公开(公告)日：2003-06-03

申请号：US09635227

申请日：2000-08-09

申请人： Gregg A. Johnson ,  Bryan L. Althouse ,  Greg Nau ,  Sandeep T. Vohra

发明人： Gregg A. Johnson ,  Bryan L. Althouse ,  Greg Nau ,  Sandeep T. Vohra

IPC分类号： G01J104

CPC分类号： G01K11/3206 ,  G02B6/0218 ,  G02B6/02204 ,  G02B6/29319 ,  G02B6/29395 ,  G02B6/29398 ,  H04B10/07

摘要： A passive, temperature compensated tunable filter calibration device for a Bragg grating interrogation system. In a first system, a dual-substrate Bragg grating calibration system, the temperature of an array of gratings is estimated using an array of gratings bonded to a common host substrate and a single grating bonded to a material with a different coefficient of thermal expansion. Changes in a common temperature of the substrates is measured by monitoring the difference between shifts of grating wavelength. As a filter voltage is scanned from its lowest to its highest voltage, the voltages are recorded. The second lowest wavelength corresponds to the grating attached to the differing substrate. The voltages are used to calculate a voltage-to-wavelength function for the scanning range of the filter. To compensate for variations in a calibration curve and temperature variations of the calibration array, the temperature is estimated and function re-calculated at every pass of the scanning filter. In a second system, a hydrogen-cyanide wavelength reference absorption cell that absorbs light at discrete wavelengths corresponding to the molecular vibrational mode frequencies of the gas. With a broadband optical light input to the cell, the output displays the spectrum of the input with several narrow dips in the spectra corresponding to the absorption lines of the cell. A first photodetector sees the transmission spectrum and a second sees the reflections from Bragg gratings in a sensing array. The filter drive voltages that coincide with the dips of the transmission spectrum are used to calibrate the voltage-to-wavelength function of the scanning filter. In this system there is no temperature compensation step as the absorption lines are not sensitive to temperature.

摘要翻译： 用于布拉格光栅询问系统的无源温度补偿可调滤波器校准装置。 在第一系统中，双衬底布拉格光栅校准系统，使用结合到公共主机衬底的光栅阵列和结合到具有不同热膨胀系数的材料的单个光栅来估计光栅阵列的温度。 通过监测光栅波长的偏移之间的差异来测量衬底的共同温度的变化。 当滤波器电压从最低电压被扫描到最高电压时，记录电压。 第二低的波长对应于附着于不同基底的光栅。 电压用于计算滤波器扫描范围的电压 - 波长功能。 为了补偿校准曲线的变化和校准阵列的温度变化，在扫描过滤器的每次通过时估计温度并重新计算功能。 在第二系统中，吸收对应于气体的分子振动模式频率的离散波长的光的氰化氢波长参考吸收单元。 通过宽带光输入到单元格，输出显示与对应于单元的吸收线的光谱中的几个窄幅下降的输入光谱。 第一光电检测器看到透射光谱，第二光电检测器看到来自感测阵列中的布拉格光栅的反射。 使用与透射光谱的下降一致的滤波器驱动电压来校准扫描滤波器的电压 - 波长功能。 在该系统中，由于吸收线对温度不敏感，因此没有温度补偿步骤。

公开(公告)号：US07010331B2

公开(公告)日：2006-03-07

申请号：US10152186

申请日：2002-05-20

申请人： Gregg A. Johnson ,  Richard E. La Spesa ,  Mark Edward Simek ,  John J. Wendorff ,  Gad Shaanan

发明人： Gregg A. Johnson ,  Richard E. La Spesa ,  Mark Edward Simek ,  John J. Wendorff ,  Gad Shaanan

IPC分类号： H04B1/38

CPC分类号： H04B1/385 ,  A45F5/02 ,  A45F2200/0516 ,  F16B45/02 ,  H04B2001/3855 ,  H04M1/0214

摘要： According to a preferred embodiment of the present invention, there is provided a mobile telephone handset construction, which is adapted to be attached removably in an inverted manner to a support element, such as a strap, loop or ring attached to a back-pack or other article of wearing apparel, or any other suitable support element used for supporting the handset construction. The construction of an embodiment of the invention can be quickly retrieved and responded to in a convenient manner when a call is being received. The construction includes a display mounted at a top front face portion of a housing to present information to the user when the display is viewed in a position adapted to be read by the user. A carabiner latch is connected to the housing for attaching to the support element to suspend the construction therefrom in an inverted manner for storage purposes. The latch is secured to a bottom portion of the housing at a substantial distance from the display to enable the handset construction to be suspended in an inverted substantially vertical position from the support element and able to be moved pivotally from the inverted position by the hand of the user in a quick and convenient manner to a position where the user is permitted to read the information contained on the display. All of this can be accomplished while the construction remains attached to the support element.

摘要翻译： 根据本发明的优选实施例，提供了一种移动电话听筒结构，其适于以反向方式可拆卸地附接到支撑元件，例如附接到背包的带，环或环， 其他服装制品或用于支持手机构造的任何其他合适的支撑元件。 当接收到呼叫时，可以以便利的方式快速检索和响应本发明的实施例的构造。 该结构包括安装在壳体的顶部正面部分的显示器，以在适于被用户读取的位置观看显示器时向用户呈现信息。 挂钩闩锁连接到壳体，用于附接到支撑元件，以便以倒置的方式悬挂其构造用于存储目的。 闩锁件以与显示器相当的距离固定在壳体的底部，以使手机构造能够从支撑元件悬挂在与倒置的大致垂直的位置上，并且能够通过 用户以快速方便的方式到用户被允许读取包含在显示器上的信息的位置。 所有这些都可以在构造保持附接到支撑元件的同时完成。