公开(公告)号：US5406378A

公开(公告)日：1995-04-11

申请号：US875480

申请日：1992-04-29

申请人： Wes R. Jamroz ,  Julien Tremblay ,  Brian Wong

发明人： Wes R. Jamroz ,  Julien Tremblay ,  Brian Wong

IPC分类号： G01N21/35 ,  G01N33/46 ,  G01N21/55

CPC分类号： G01N33/46 ,  G01N21/3563 ,  G01N21/8986 ,  G01N21/4738

摘要： A method and apparatus for non-contact and rapid identification of wood species is provided. The method comprises irradiation of a substance with infra-red radiation which is intense enough to introduce microstructural modifications of the substance surface. Various wood species are identified by analyzing intensity of optical radiation which is scattered from the modified surface. The surface is irradiated with two (2) infra-red beams of different level of energy density. A wood sample is analyzed with optical beams: the first optical scanning is done prior to the first infra-red irradiation; the second optical scanning is done after the first infra-red irradiation; the third optical scanning is done after the second infra-red irradiation. It has been determined experimentally, that various wood species can be identified by analyzing intensities of the optical beams scattered from the modified surface. The method allows for non-contact, rapid and in-line identification of various species of wood. Also, it has been found, that the invented method allows for simultaneous determination of the moisture content. In one embodiment, the apparatus includes a source of optical radiation, an infra-red radiation source with adjustable energy densities, and a detector. The arrangement of optical axes of the detector and the radiation sources is such that they converge at the substance surface. In second embodiment, the apparatus includes two (2) sources of optical radiation, two (2) detectors, and an infra-red radiation source with adjustable energy densities. The arrangement of optical axes of the sources and detectors is such, that they are in line with the respect to the direction in which a substance is being moved.

摘要翻译： 提供了用于非接触和快速识别木材种类的方法和设备。 该方法包括用足以引入物质表面的微结构修饰的足够强的红外线辐射物质。 通过分析从改性表面散射的光辐射的强度来鉴定各种木材种类。 用不同能级密度的两（2）个红外光束照射表面。 用光束分析木材样品：在第一次红外辐射之前进行第一次光学扫描; 在第一次红外辐射之后进行第二次光学扫描; 在第二次红外辐射之后进行第三次光学扫描。 通过实验确定，可以通过分析从改性表面散射的光束的强度来识别各种木材种类。 该方法允许对各种木材的非接触，快速和在线识别。 此外，已经发现，本发明的方法允许同时测定水分含量。 在一个实施例中，该装置包括光辐射源，具有可调能量密度的红外辐射源和检测器。 检测器和辐射源的光轴的布置使得它们会聚在物质表面。 在第二实施例中，该装置包括两（2）个光辐射源，两（2）个检测器以及具有可调能量密度的红外辐射源。 源和检测器的光轴的布置是这样的，即它们与物质被移动的方向相一致。

公开(公告)号：US07855712B2

公开(公告)日：2010-12-21

申请号：US11423243

申请日：2006-06-09

申请人： Marilyn J. Powers ,  Ian Sinclair

发明人： Marilyn J. Powers ,  Ian Sinclair

IPC分类号： G09G5/00

CPC分类号： G06F3/016

摘要： A replaceable instrument mechanism for a haptic device comprises a coupler having a coupler body adapted to be connected to an output end of the haptic device. A force transmission mechanism is connected to the coupler body, has a movable connector displaceable along one degree-of-freedom with respect to the coupler body, and is connected to a force feedback system of the haptic device so as to receive force feedback from the haptic device and impart the force feedback to the movable connector. An instrument has an instrument body having a connector end releasably secured to the second end of the coupler body so as to be displaceable with the coupler. A handle portion is manually actuatable in one degree-of-freedom with respect to the instrument body to simulate an operation performed with the instrument. A member is associated with the handle portion so as to move by actuation of the handle portion, and releasably connected to the movable connector of the force transmission mechanism so as to transmit force feedback from the movable connector to the handle portion in response to actuation of the handle portion as detected by the haptic device.

摘要翻译： 用于触觉装置的可替换的仪器机构包括具有适于连接到触觉装置的输出端的耦合器主体的耦合器。 力传递机构连接到耦合器主体，具有可相对于耦合器主体沿着一个自由度位移的可移动连接器，并且连接到触觉装置的力反馈系统，以便接收来自 触觉装置并且将力反馈传递给可移动连接器。 仪器具有仪器本体，其具有可释放地固定到耦合器主体的第二端的连接器端，以便能够与耦合器一起移动。 手柄部分可相对于仪器主体在一个自由度上手动启动，以模拟用仪器执行的操作。 构件与手柄部分相关联，以便通过手柄部分的致动而移动，并且可释放地连接到力传递机构的可动连接器，以便响应于动作连接器的致动而将力反馈从可动连接器传递到手柄部分 由触觉装置检测的手柄部分。

公开(公告)号：US5270546A

公开(公告)日：1993-12-14

申请号：US875482

申请日：1992-04-29

申请人： Wes R. Jamroz ,  Julien Tremblay ,  Brian Wong

发明人： Wes R. Jamroz ,  Julien Tremblay ,  Brian Wong

IPC分类号： G01N21/35 ,  G01N21/47 ,  G01N33/46 ,  G01N21/00 ,  G01N21/17

CPC分类号： G01N21/4738 ,  G01N33/46 ,  G01N21/3559

摘要： A method and apparatus for non-contact determination of the moisture content in moving or stationary mass of fibrous products such as wood is provided. The method comprises irradiation of a substance with infra-red radiation which is intense enough to introduce microstructural modifications of the substance surface. The moisture content of the substance is determined by analyzing density of these surface modifications. It has been found, that an optical beam may be used in order to quantify the density of the surface modifications. The surface is scanned with the optical beam two (2) times. The first scanning is done prior to the infra-red irradiation; the second scanning is done following the infra-red irradiation. The invented method allows for non-contact, rapid and continuous in-line measurements of the moisture content.

公开(公告)号：US07034935B1

公开(公告)日：2006-04-25

申请号：US10394662

申请日：2003-03-24

申请人： Roman V. Kruzelecky

发明人： Roman V. Kruzelecky

IPC分类号： G01J3/28

CPC分类号： G02B6/10 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0232 ,  G01J3/0259 ,  G01J3/0286 ,  G01J3/04 ,  G01J3/20 ,  G01J3/2803 ,  G01J3/2846

摘要： An infrared spectrometer is described wherein a detector array is optically coupled to a slab waveguide structure. A focal plane is provided outside of the output face of the slab waveguide structure and the detector array is mounted onto the slab waveguide structure at a fixed distance from the output face on the output focal plane.

摘要翻译： 描述了一种红外光谱仪，其中检测器阵列光学耦合到平板波导结构。 焦平面设置在平板波导结构的输出面的外侧，检测器阵列以与输出焦平面上的输出面一定距离的方式安装在平板波导结构上。

公开(公告)号：US10725083B2

公开(公告)日：2020-07-28

申请号：US16034537

申请日：2018-07-13

申请人： MPB Technologies Inc.

发明人： Daniele Zanette ,  Eric J Jackson

IPC分类号： G01R31/00 ,  G01R29/08

摘要： A radiofrequency (RF) source for use in testing radiofrequency interference (RFI) stresses has an RF transmitter emitting an electromagnetic field corresponding to at least one frequency, power, and state-of-polarization (SOP). Drives rotate the transmitter to emit, in a temporally continuous fashion, RF power and RF state of polarization from the RF transmitter in, respectively, every direction and every SOP orientation within an RF reflective structure in order to effectively characterize RFI stresses on said equipment to be tested.

公开(公告)号：US5598440A

公开(公告)日：1997-01-28

申请号：US336183

申请日：1994-11-08

申请人： Jerzy Domagala

发明人： Jerzy Domagala

IPC分类号： G06F1/03 ,  H03L7/18

CPC分类号： G06F1/0321

摘要： ADDS driven DDS Synthesizer (DDS.sup.2 Synthesizer) is disclosed, wherein the first DDS--a Reference DDS--generates a high resolution tunable output signal, which is in turn expanded and/or upconverted to the frequency bandwidth and range required by the clock of the second DDS--a DDS Divider. The DDS Divider acts as a programmable "sinewave divider" of its tunable input clock by division ratios "n" limited to the set of small integer numbers 3; 4; 5; 6 . . . , chosen to eliminate phase truncation spurs and limit quantization spurs to harmonics of the fundamental output and thus to provide a high spectral purity, high resolution, fast switching DDS based synthesizer.

摘要翻译： 公开了ADDS驱动的DDS合成器（DDS2合成器），其中第一DDS-参考DDS产生高分辨率可调谐输出信号，其又被扩展和/或上变频到第二个时钟所需的频率带宽和范围 DDS-DDS分频器 DDS分频器作为可调输入时钟的可编程“正弦波分频器”，分频比“n”限于小整数3的集合; 4; 5; 6。 。 。 ，用于消除相位截断杂散，并限制量子化刺激到基波输出的谐波，从而提供高光谱纯度，高分辨率，快速切换基于DDS的合成器。

公开(公告)号：US5335106A

公开(公告)日：1994-08-02

申请号：US969455

申请日：1992-10-30

申请人： Normand Paquin ,  A. K. Ghosh

发明人： Normand Paquin ,  A. K. Ghosh

IPC分类号： H04B10/145 ,  H04B10/155 ,  H04B10/158 ,  H04B10/06

CPC分类号： H04B10/2575 ,  G02B6/4274 ,  G02F1/2252 ,  G02F2203/21 ,  H01S5/0428 ,  H01S5/0623 ,  H04B2210/006

摘要： The optically-based frequency synthesizer for generating an electric output signal at a preselected frequency having a given period that can be changed over a wide band of frequencies for communication purposes, comprises a modulator having an input for receiving a command signal, and an output for generating a current driving signal having a DC component, and a modulating component formed of an AC signal having a predetermined time period which is an integer multiple of the period of the preselected frequency, and an amplitude responsive to the command signal, a laser having an input for receiving the current driving signal, the coherent light signal having a given coherence time; optical isolators for receiving the light signal emitted by said laser; a splitter having an input optically connected to the isolators; a first optical path having an end optically connected to the splitter; and a second optical path having an end optically connected to the splitter, and a delay means along its length, the time delay being shorter than the coherence time. The synthesizer also comprises a recombiner having first and second inputs optically connected to the paths respectively; and a non-linear device having an input optically connected to an output of the recombiner, and an output for generating the electric output signal at the preselected frequency.

摘要翻译： 用于以预定频率产生具有给定周期的电输出信号的光学频率合成器包括具有用于接收命令信号的输入的调制器和用于接收命令信号的输出的输出， 产生具有DC分量的电流驱动信号，以及由具有预定时间段的预定时间段的AC信号形成的调制分量，该预定时间周期是预选频率的周期的整数倍，以及响应于该命令信号的振幅，具有 用于接收当前驱动信号的输入，所述相干光信号具有给定的相干时间; 用于接收由所述激光器发出的光信号的光隔离器; 具有光学连接到所述隔离器的输入的分离器; 第一光路，其具有光学地连接到分离器的端部; 以及第二光路，其具有光学地连接到分离器的端部，以及沿其长度的延迟装置，所述时间延迟短于相干时间。 合成器还包括具有分别光学地连接到路径的第一和第二输入的重组器; 以及具有与重组器的输出光学连接的输入的非线性装置，以及用于以预选频率产生电输出信号的输出。