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公开(公告)号：US10054483B1
公开(公告)日：2018-08-21
申请号：US15610998
申请日：2017-06-01
CPC分类号： G01J3/021 , G01J3/0202 , G01J3/0229 , G01J3/0262 , G01J3/0291 , G01J3/0297 , G01J3/18 , G01J3/28 , G01J2003/2866
摘要： Aspects of a micromirror spectrophotometer assembly are described. In one example case, an instrument includes a diffraction grating to disperse broadband light over a range of wavelengths, a detector, a digital micromirror device (DMD) configured to scan through and reflect at least a portion of the range of wavelengths toward the detector, and a base platform having a number of integrally formed assembly mounts. The assembly mounts are formed to align and secure the diffraction grating, the detector, the DMD, and other optical components of the instrument in a predetermined arrangement. The instrument can also include a reference paddle having a reference material for calibration of the instrument, and a rotatable sample tray to rotate a sample placed on the sample tray for measurement.
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公开(公告)号：US09551612B2
公开(公告)日：2017-01-24
申请号：US15185291
申请日：2016-06-17
CPC分类号： G01J3/027 , G01J3/0202 , G01J3/06 , G01J3/10 , G01J3/18 , G01J2003/1866
摘要： Aspects of a monochromator are described herein. In one embodiment, the monochromator includes a light source that provides light, a diffraction grating including a first diffraction grating and a second diffraction grating, a grating drive motor that rotates the diffraction grating to provide dispersed wavelengths of light, a detector that detects a portion of the dispersed wavelengths of light, and processing circuitry that controls a grating drive motor to regulate an angular velocity of the grating based on an angular orientation of the diffraction grating. By using a diffraction grating having multiple, different dispersive surfaces, measurements of relatively high precision and quality may be taken throughout a wider spectral range. In another aspect, the processing circuitry controls a sample drive motor to vary an angle of incidence of the dispersed wavelengths of light onto a sample for evaluation.
摘要翻译： 本文描述了单色仪的方面。 在一个实施例中，单色器包括提供光的光源，包括第一衍射光栅和第二衍射光栅的衍射光栅，旋转衍射光栅以提供分散波长的光的光栅驱动马达，检测部分的检测器 以及处理电路，其控制光栅驱动电机以基于衍射光栅的角度取向来调节光栅的角速度。 通过使用具有多个不同色散表面的衍射光栅，可以在较宽的光谱范围内进行相对较高精度和质量的测量。 在另一方面，处理电路控制样品驱动电机以将分散的波长波长的入射角度改变到样品上用于评估。
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公开(公告)号：US09404799B2
公开(公告)日：2016-08-02
申请号：US14213214
申请日：2014-03-14
CPC分类号： G01J3/027 , G01J3/0202 , G01J3/06 , G01J3/10 , G01J3/18 , G01J2003/1866
摘要： Aspects of a tandem dispersive range monochromator are described herein. In one embodiment, the monochromator includes a light source that provides broadband light, a tandem diffraction grating including a first diffraction grating and a second diffraction grating, a grating drive motor that rotates the tandem diffraction grating to provide dispersed wavelengths of light, a detector that detects a portion of the dispersed wavelengths of light, and processing circuitry that controls a grating drive motor to regulate an angular velocity of the tandem grating based on an angular orientation of the tandem diffraction grating. By using a tandem diffraction grating having different dispersive surfaces, measurements of relatively high precision and quality may be taken throughout a wider spectral range. In another aspect, the processing circuitry controls a sample drive motor to vary an angle of incidence of the dispersed wavelengths of light onto a sample for evaluation.
摘要翻译： 这里描述了串联色散范围单色仪的方面。 在一个实施例中，单色器包括提供宽带光的光源，包括第一衍射光栅和第二衍射光栅的串联衍射光栅，旋转串联衍射光栅以提供分散的波长的光栅的光栅驱动马达，检测器 检测部分分散的光的波长，以及处理电路，其控制光栅驱动电机，以基于串联衍射光栅的角取向来调节串联光栅的角速度。 通过使用具有不同色散表面的串联衍射光栅，可以在更宽的光谱范围内进行相对高精度和质量的测量。 在另一方面，处理电路控制样品驱动电机以将分散的波长波长的入射角度改变到样品上用于评估。
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公开(公告)号：US20180209849A1
公开(公告)日：2018-07-26
申请号：US15416552
申请日：2017-01-26
CPC分类号： G01J3/28 , G01J3/0202 , G01J3/0235 , G01J3/0267 , G01J3/0289 , G01J3/06 , G01J3/1804 , G01J2003/1828
摘要： Aspects of blending data detected by a monochromator over multiple wavelength ranges is described herein. In one embodiment, the monochromator includes a diffraction grating, a grating drive motor that rotates the diffraction grating to provide, by diffraction of broadband light, first dispersed wavelengths of light and second dispersed wavelengths of light, a detector that detects a first reflection from the first dispersed wavelengths of light and a second reflection from the second dispersed wavelengths of light, and processing circuitry that blends data values from the first reflection and data values from the second reflection together to provide a spectrum of combined data values. By blending data detected over multiple ranges, measurements of relatively high precision and quality can be provided over a wider spectral range.
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公开(公告)号：US09546903B2
公开(公告)日：2017-01-17
申请号：US15185818
申请日：2016-06-17
CPC分类号： G01J3/18 , G01J3/0202 , G01J3/027 , G01J3/06 , G01J3/10 , G01J2003/1866
摘要： Aspects of a tandem dispersive range monochromator and data knitting for the monochromator are described herein. In one embodiment, the monochromator includes a tandem diffraction grating, a grating drive motor that rotates the tandem diffraction grating to provide, by diffraction of broadband light, first dispersed wavelengths of light and second dispersed wavelengths of light, a detector that detects a first reflection from the first dispersed wavelengths of light and a second reflection from the second dispersed wavelengths of light, and processing circuitry that knits together data values from the first reflection and data values from the second reflection to provide a spectrum of combined data values. By using a tandem diffraction grating having different dispersive surfaces, measurements of relatively high precision and quality may be taken throughout a wider spectral range, and the measurements may be knitted together to provide a spectrum of combined data values.
摘要翻译： 本文描述了用于单色仪的串联色散范围单色仪和数据编织的方面。 在一个实施例中，单色仪包括串联衍射光栅，光栅驱动马达，其旋转串联衍射光栅，以通过宽带光的衍射提供第一分散的光波长和第二分散波长的光，检测器，其检测第一反射 来自第一分散波长的光和来自第二分散波长的光的第二反射，以及将来自第二反射的数据值和来自第二反射的数据值编织在一起的数据值的处理电路，以提供组合数据值的频谱。 通过使用具有不同分散表面的串联衍射光栅，可以在更宽的光谱范围内进行相对高的精度和质量的测量，并且测量可以被编织在一起以提供一组合并的数据值。
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公开(公告)号：US10048100B1
公开(公告)日：2018-08-14
申请号：US13829651
申请日：2013-03-14
摘要： Aspects of spectrometer secondary reference calibration are described. In one embodiment, a diagnostic measurement for evaluation of an aspect of calibration in spectroscopy is performed. A result of the diagnostic measurement is analyzed to determine a deviation from an expected result. Based on the analysis, a correction algorithm may be applied to the aspect of calibration, in view of the deviation. In some embodiments, a product model diagnostic measurement is also performed for further evaluation of the aspect of calibration. A result of the product model diagnostic measurement is analyzed to determine a product model deviation from an expected result of the product model diagnostic measurement, and a product model correction algorithm is applied, if necessary. According to aspects of the embodiments described herein, using secondary reference standards permits reconstruction of calibration parameters without any need for a master instrument or other forms of calibrated reference instrumentation.
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公开(公告)号：US09395245B2
公开(公告)日：2016-07-19
申请号：US14603700
申请日：2015-01-23
CPC分类号： G01J3/18 , G01J3/0202 , G01J3/027 , G01J3/06 , G01J3/10 , G01J2003/1866
摘要： Aspects of a tandem dispersive range monochromator and data knitting for the monochromator are described herein. In one embodiment, the monochromator includes a tandem diffraction grating, a grating drive motor that rotates the tandem diffraction grating to provide, by diffraction of broadband light, first dispersed wavelengths of light and second dispersed wavelengths of light, a detector that detects a first reflection from the first dispersed wavelengths of light and a second reflection from the second dispersed wavelengths of light, and processing circuitry that knits together data values from the first reflection and data values from the second reflection to provide a spectrum of combined data values. By using a tandem diffraction grating having different dispersive surfaces, measurements of relatively high precision and quality may be taken throughout a wider spectral range, and the measurements may be knitted together to provide a spectrum of combined data values.
摘要翻译： 本文描述了用于单色仪的串联色散范围单色仪和数据编织的方面。 在一个实施例中，单色仪包括串联衍射光栅，光栅驱动马达，其旋转串联衍射光栅，以通过宽带光的衍射提供第一分散的光波长和第二分散波长的光，检测器，其检测第一反射 来自第一分散波长的光和来自第二分散波长的光的第二反射，以及将来自第二反射的数据值和来自第二反射的数据值编织在一起的数据值的处理电路，以提供组合数据值的频谱。 通过使用具有不同分散表面的串联衍射光栅，可以在更宽的光谱范围内进行相对高的精度和质量的测量，并且测量可以被编织在一起以提供一组合并的数据值。
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公开(公告)号：US10648840B2
公开(公告)日：2020-05-12
申请号：US16035105
申请日：2018-07-13
摘要： Aspects of spectrometer secondary reference calibration are described. In one embodiment, a diagnostic measurement for evaluation of an aspect of calibration in spectroscopy is performed. A result of the diagnostic measurement is analyzed to determine a deviation from an expected result. Based on the analysis, a correction algorithm may be applied to the aspect of calibration, in view of the deviation. In some embodiments, a product model diagnostic measurement is also performed for further evaluation of the aspect of calibration. A result of the product model diagnostic measurement is analyzed to determine a product model deviation from an expected result of the product model diagnostic measurement, and a product model correction algorithm is applied, if necessary. According to aspects of the embodiments described herein, using secondary reference standards permits reconstruction of calibration parameters without any need for a master instrument or other forms of calibrated reference instrumentation.
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公开(公告)号：US10345228B2
公开(公告)日：2019-07-09
申请号：US15447959
申请日：2017-03-02
IPC分类号： G01N21/27
摘要： Various embodiments of a dark reference standard for an instrument are described. In one embodiment, the dark reference standard includes a sample cup and an arrangement of dark reference standard materials. The arrangement of dark reference standard materials can be embodied as a dark glass, such as a welding glass, and a polymer film such as a carbon black or carbon black master polymer film.
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公开(公告)号：US10309829B2
公开(公告)日：2019-06-04
申请号：US16035061
申请日：2018-07-13
摘要： Aspects of a micromirror spectrophotometer assembly are described. In one example case, an instrument includes a diffraction grating to disperse broadband light over a range of wavelengths, a detector, a digital micromirror device (DMD) configured to scan through and reflect at least a portion of the range of wavelengths toward the detector, and a base platform having a number of integrally formed assembly mounts. The assembly mounts are formed to align and secure the diffraction grating, the detector, the DMD, and other optical components of the instrument in a predetermined arrangement. The instrument can also include a reference paddle having a reference material for calibration of the instrument, and a rotatable sample tray to rotate a sample placed on the sample tray for measurement.
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