公开(公告)号：US20070133004A1

公开(公告)日：2007-06-14

申请号：US11333203

申请日：2006-01-18

申请人： Gaetan Duplain ,  Richard Van Neste

发明人： Gaetan Duplain ,  Richard Van Neste

IPC分类号： G01B9/02

CPC分类号： G01J5/58 ,  G01J2005/583 ,  G01J2005/586 ,  G01K11/32 ,  G01K11/3213

摘要： The invention concerns a tandem interferometer for temperature sensing. The low coherence interferometry (LCI) system comprises a polarization-based sensing interferometer comprising a birefringent crystal having a sensor temperature sensitivity and a birefringence dispersion, and a readout interferometer being either a Fizeau interferometer using an optical wedge or a polarization interferometer using a birefringent wedge. In one embodiment of the invention, the birefringent crystal has dispersion properties similar to that of the birefringent wedge or that of the optical wedge of the readout interferometer. The present invention also provides a signal processing method for correcting the dispersion effect and for noise filtering in LCI-based optical sensors of the tandem interferometer arrangement.

摘要翻译： 本发明涉及用于温度感测的串联干涉仪。 低相干干涉测量（LCI）系统包括基于偏振的感测干涉仪，其包括具有传感器温度灵敏度和双折射色散的双折射晶体，以及使用光楔的Fizeau干涉仪或使用双折射楔的偏振干涉仪的读出干涉仪 。 在本发明的一个实施例中，双折射晶体具有与双折射楔形或者读出干涉仪的光楔的分散特性相似的分散特性。 本发明还提供一种用于校正串联干涉仪装置的基于LCI的光学传感器中的色散效应和噪声滤波的信号处理方法。

公开(公告)号：US20070211249A1

公开(公告)日：2007-09-13

申请号：US11685493

申请日：2007-03-13

申请人： Gaetan Duplain ,  Claude Belleville

发明人： Gaetan Duplain ,  Claude Belleville

IPC分类号： G01J3/40

CPC分类号： G01R15/146 ,  G01K11/3213 ,  G01R15/247

摘要： The present invention provides an optical sensor for monitoring current or power in a monitored element of a device such as a bridge-wire or hot-wire of electro-explosive devices. The optical sensor comprises an optical sensor made of semiconductor material. The semiconductor material comprises an absorption edge which is sensitive to a temperature variation. The semiconductor material is for placing in thermal contact with the monitored element of the device, whereby, when the current or power varies in the monitored element, it causes a variation in temperature in the semiconductor element and hence a spectral shift of the absorption edge which can be measured and which is representative of current and power variation.

摘要翻译： 本发明提供一种光电传感器，用于监测诸如电子爆炸装置的桥线或热线的装置的被监测元件中的电流或功率。 光学传感器包括由半导体材料制成的光学传感器。 半导体材料包括对温度变化敏感的吸收边缘。 半导体材料用于与器件的受监测元件热接触，由此当电流或功率在被监测元件中变化时，其导致半导体元件中的温度变化，并因此导致吸收边缘的光谱偏移， 可以测量和代表电流和功率变化。

公开(公告)号：US20060061768A1

公开(公告)日：2006-03-23

申请号：US10976863

申请日：2004-11-01

申请人： Gaetan Duplain

发明人： Gaetan Duplain

IPC分类号： G01B9/02

CPC分类号： G01B9/02023 ,  G01B9/02028 ,  G01B9/02032 ,  G01B9/02065 ,  G01B9/0209 ,  G01B2290/70 ,  G01D5/266 ,  G01J2009/0292 ,  G01K11/00 ,  G01K11/3206

摘要： The invention provides a method and a system for measuring a physical quantity by means of a tandem interferometer optical sensor system based on low-coherence interferometry. The system comprises a light system, a sensing interferometer and a polarization readout interferometer. The invention provides a polarization interferometer comprising a single birefringent wedge. The invention also provides for a dispersion-compensated optical sensor system. The invention also provides an interferometer sensitive to temperature that comprises a trajectory in a LiB3O5 crystal with an x-cut orientation.

摘要翻译： 本发明提供一种通过基于低相干干涉测量的串联干涉仪光学传感器系统来测量物理量的方法和系统。 该系统包括光系统，感测干涉仪和偏振读出干涉仪。 本发明提供一种包括单个双折射楔的偏振干涉仪。 本发明还提供一种色散补偿光学传感器系统。 本发明还提供了一种对温度敏感的干涉仪，其包括具有x切割取向的L 3 N 3 O 5 O 5晶体中的轨迹。

公开(公告)号：US5392117A

公开(公告)日：1995-02-21

申请号：US45680

申请日：1993-04-12

申请人： Claude Belleville ,  Gaetan Duplain

发明人： Claude Belleville ,  Gaetan Duplain

IPC分类号： G01B9/02 ,  G01D5/26 ,  G02B6/34 ,  G02B6/38

CPC分类号： G02B6/4215 ,  G01B11/18 ,  G01D5/266 ,  G02B6/29359 ,  G02B6/3854 ,  G02B6/3855 ,  G02B6/3863

摘要： The optical sensing device and the method thereof are for measuring a physical parameter. The device is to be connected to a light source which generates a multiple frequency light signal having predetermined spectral characteristics. The device comprises a Fabry-Perot interferometer through which the light signal is passed, an optical focusing device for focusing at least a portion of the light signal outgoing from the Fabry-Perot interferometer, and a Fizeau interferometer through which the focused light signal is passed. The Fabry-Perot interferometer includes two semi-reflecting mirrors substantially parallel to one another and spaced by a given distance so as to define a Fabry-Perot cavity having transmittance or reflectance properties which are affected by the physical parameter and which cause the spectral properties of the light signal to vary in response to the physical parameter. The Fabry-Perot interferometer is provided with at least one optical fiber for transmitting the light signal into the Fabry-Perot cavity and for collecting the portion of the light signal outgoing thereof. The Fizeau interferometer includes an optical wedge forming a wedge-profiled Fizeau cavity from which exits a spatially-spread light signal indicative of the transmittance or reflectance properties of the Fabry-Perot interferometer. The physical parameter can be determined by means of the spatially-spread light signal.

摘要翻译： 光学传感装置及其方法用于测量物理参数。 该装置将连接到产生具有预定光谱特性的多频光信号的光源。 该装置包括通过光信号的法布里 - 珀罗干涉仪，用于聚焦从法布里 - 珀罗干涉仪输出的光信号的至少一部分的光聚焦装置和聚焦光信号通过的菲索干涉仪 。 法布里 - 珀罗干涉仪包括两个基本上彼此平行并且间隔给定距离的半反射镜，以便限定具有透射率或反射性质的法布里 - 珀罗腔，其受物理参数的影响，并且导致光谱特性 光信号响应于物理参数而变化。 法布里 - 珀罗干涉仪设置有至少一个光纤，用于将光信号传输到法布里 - 珀罗腔中，并用于收集出射它的光信号的部分。 斐索干涉仪包括形成楔形Fizeau腔的光学楔形物，从该光学楔形物出射指示法布里 - 珀罗干涉仪的透射率或反射率特性的空间扩展的光信号。 物理参数可以通过空间扩展的光信号来确定。

公开(公告)号：US5260964A

公开(公告)日：1993-11-09

申请号：US906265

申请日：1992-06-26

申请人： Michel Morin ,  Gaetan Duplain

发明人： Michel Morin ,  Gaetan Duplain

IPC分类号： H01S3/08

CPC分类号： H01S3/08063 ,  H01S3/08 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0818

摘要： A resonator for the modal control of a laser with a gain medium having a non-circular cross-section in a plane perpendicular to the optical axis of the resonator. It has a graded reflectivity mirror as the output coupler. The graded reflectivity mirror consists of a partial reflector which has a reflectivity that varies gradually according to the position on the mirror's surface. The resonator is either astigmatic or the graded reflectivity mirror has a non circularly symmetric reflectivity profile or both. It allows the production of a good optical quality beam with an efficient energy extraction.

摘要翻译： 一种谐振器，用于在垂直于谐振器的光轴的平面中具有具有非圆形横截面的增益介质的激光器的模态控制。 它具有渐变反射镜作为输出耦合器。 分级反射镜由部分反射镜组成，其具有根据镜子表面上的位置逐渐变化的反射率。 谐振器是散光的，或者分级反射镜具有非圆形对称的反射率曲线或两者。 它允许生产具有高效能量提取的良好光学质量的光束。

公开(公告)号：US5202939A

公开(公告)日：1993-04-13

申请号：US915645

申请日：1992-07-21

申请人： Claude Belleville ,  Gaetan Duplain

发明人： Claude Belleville ,  Gaetan Duplain

IPC分类号： G01B9/02 ,  G01D5/26 ,  G02B6/34 ,  G02B6/38

CPC分类号： G02B6/4215 ,  G01B11/18 ,  G01D5/266 ,  G02B6/29359 ,  G02B6/3854 ,  G02B6/3855 ,  G02B6/3863

摘要： The optical sensing device and the method thereof are for measuring a physical parameter. The device is to be connected to a light source which generates a multiple frequency light signal having predetermined spectral characteristics. The device comprises a Fabry-Perot interferometer through which the light signal is passed, an optical focusing device for focusing at least a portion of the light signal outgoing from the Fabry-Perot interferometer, and a Fizeau interferometer through which the focused light signal is passed. The Fabry-Perot interferometer includes two semi-reflecting mirrors substantially parallel to one another and spaced by a given distance so as to define a Fabry-Perot cavity having transmittance or reflectance properties which are affected by the physical parameter and which cause the spectral properties of the light signal to vary in response to the physical parameter. The Fabry-Perot interferometer is provided with at least one multimode optical fiber for transmitting the light signal into the Fabry-Perot cavity and for collecting the portion of the light signal outgoing thereof. The Fizeau interferometer includes an optical wedge forming a wedge-profiled Fizeau cavity from which exits a spatially-spread light signal indicative of the transmittance or reflectance properties of the Fabry-Perot interferometer. The physical parameter can be determined by means of the spatially-spread light signal.

摘要翻译： 光学传感装置及其方法用于测量物理参数。 该装置将连接到产生具有预定光谱特性的多频光信号的光源。 该装置包括通过光信号的法布里 - 珀罗干涉仪，用于聚焦从法布里 - 珀罗干涉仪输出的光信号的至少一部分的光聚焦装置和聚焦光信号通过的菲索干涉仪 。 法布里 - 珀罗干涉仪包括两个基本上彼此平行并且间隔给定距离的半反射镜，以便限定具有透射率或反射性质的法布里 - 珀罗腔，其受物理参数的影响，并且导致光谱特性 光信号响应于物理参数而变化。 法布里 - 珀罗干涉仪设置有至少一个多模光纤，用于将光信号传输到法布里 - 珀罗腔中，并用于收集出射它的光信号的部分。 斐索干涉仪包括形成楔形Fizeau腔的光学楔形物，从该光学楔形物出射指示法布里 - 珀罗干涉仪的透射率或反射率特性的空间扩展的光信号。 物理参数可以通过空间扩展的光信号来确定。

公开(公告)号：US20090158853A1

公开(公告)日：2009-06-25

申请号：US12327962

申请日：2008-12-04

申请人： WALTER CHRISTIAN BERNER ,  Jarkko Antila ,  Gaetan Duplain ,  Per Bjorkman ,  Tove Manselin ,  Oskar Untermarzoner

发明人： WALTER CHRISTIAN BERNER ,  Jarkko Antila ,  Gaetan Duplain ,  Per Bjorkman ,  Tove Manselin ,  Oskar Untermarzoner

IPC分类号： G01L9/12 ,  G01B9/02

CPC分类号： G01L9/0075 ,  G01L9/0079 ,  G01L19/0627 ,  G01L19/0636 ,  G01L19/147

摘要： A diaphragm pressure measuring cell arrangement has a housing body at least partly made of sapphire material and a planar sapphire diaphragm with a peripheral edge joined by a first edge seal to the housing body to form a reference vacuum chamber. An outer surface of the diaphragm is exposed to a medium to be measured. A ceramic supporting body is attached to the back side of the housing body by sealing glass and includes a surface area overhanging that surrounds the housing body to form a first sealing surface. A tubular sensor casing incorporates the measuring cell for mounted the ceramic support body, the casing including an inside second surrounding sealing surface corresponding to the first sealing surface. A metal ring seal is between the sealing surfaces and a pressing member presses sealing surfaces together.

摘要翻译： 膜片压力测量单元布置具有至少部分由蓝宝石材料制成的壳体主体和具有通过第一边缘密封件连接到壳体的周边的平面蓝宝石膜片，以形成参考真空室。 隔膜的外表面暴露于要测量的介质。 通过密封玻璃将陶瓷支撑体附接到壳体的背面，并且包括围绕壳体悬伸的表面区域以形成第一密封表面。 管状传感器壳体包括用于安装陶瓷支撑体的测量单元，壳体包括对应于第一密封表面的内部第二周围密封表面。 密封表面之间的金属环密封件和挤压件将密封表面压在一起。

公开(公告)号：US07265847B2

公开(公告)日：2007-09-04

申请号：US11333203

申请日：2006-01-18

申请人： Gaetan Duplain ,  Richard Van Neste

发明人： Gaetan Duplain ,  Richard Van Neste

IPC分类号： G01B9/02

CPC分类号： G01J5/58 ,  G01J2005/583 ,  G01J2005/586 ,  G01K11/32 ,  G01K11/3213

摘要： The invention concerns a tandem interferometer for temperature sensing. The low coherence interferometry (LCI) system comprises a polarization-based sensing interferometer comprising a birefringent crystal having a sensor temperature sensitivity and a birefringence dispersion, and a readout interferometer being either a Fizeau interferometer using an optical wedge or a polarization interferometer using a birefringent wedge. In one embodiment of the invention, the birefringent crystal has dispersion properties similar to that of the birefringent wedge or that of the optical wedge of the readout interferometer. The present invention also provides a signal processing method for correcting the dispersion effect and for noise filtering in LCI-based optical sensors of the tandem interferometer arrangement.

公开(公告)号：US20060141466A1

公开(公告)日：2006-06-29

申请号：US10539771

申请日：2003-12-19

申请人： Eric Pinet ,  Gaetan Duplain

发明人： Eric Pinet ,  Gaetan Duplain

IPC分类号： C12Q1/68 ,  C12M1/34 ,  G01J3/42 ,  G01J3/427

CPC分类号： G01N21/23

摘要： A method and sensor for detecting a chemical substance in an analyte. An anisotropic material is subjected to the analyte. Light is passed through the anisotropic material and collected. A change of an optical anisotropy of the collected light is detected, the change being indicative of the chemical substance in the analyte.

摘要翻译： 一种用于检测分析物中的化学物质的方法和传感器。 对各向异性材料进行分析。 光通过各向异性材料并收集。 检测到所收集的光的光学各向异性的变化，该变化表示分析物中的化学物质。