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公开(公告)号:EP3204754B1
公开(公告)日:2022-09-14
申请号:EP15848546.6
申请日:2015-10-06
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公开(公告)号:EP2247941A1
公开(公告)日:2010-11-10
申请号:EP09712123.0
申请日:2009-02-18
发明人: GREGSON, David
IPC分类号: G01N21/19
CPC分类号: G01N21/19 , G01N2021/1731 , G01N2201/129
摘要: A spectrometer for analysing material comprises a light source, a monochromator for selecting a range of wavelengths from the light source and emitting them as monochromatic light, a chamber for locating a sample, a focusing means for focusing the monochromatic light onto a sample in the chamber, a detector for measuring the monochromatic light after it has interacted with the sample. An independently variable parameter is varied between two values vi and v2, while the detector measures the monochromatic light across a range of is wavelengths, the independent variable having a value or values between vl and vl+Δv, and Δv being much smaller than the interval between vl and v2.
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3.
公开(公告)号:EP3414620B1
公开(公告)日:2023-06-14
申请号:EP17750735.7
申请日:2017-02-09
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公开(公告)号:EP3204754A1
公开(公告)日:2017-08-16
申请号:EP15848546.6
申请日:2015-10-06
CPC分类号: G01N21/19 , G01N21/21 , G01N21/274
摘要: This invention relates to a device for calibrating circular or linear dichroism spectrometers, or other photoelastic modulator (PEM) based devices or instruments. In preferred embodiments, the present invention features a device for calibrating circular dichroism or linear dichroism spectrometers comprising at least one waveplate (Q) providing (n±¼) waves of retardation at a defined set of wavelengths, and at least one isotropic plate (P). The invention also features methods for using the device, for example, for calibrating circular dichroism spectrometers or linear dichroism spectrometers.
摘要翻译: 本发明涉及一种用于校准圆形或线性二向色性光谱仪或其他基于光弹性调制器(PEM)的设备或仪器的设备。 在优选的实施方案中,本发明的特征在于一种用于校准圆二色或线性二向色性光谱仪的设备,其包括至少一个波片(Q),其在限定的一组波长处提供(n±1/4)波延迟,以及至少一个各向同性板 (P)。 本发明还具有使用该装置的方法,例如用于校准圆二色谱仪或线性二色谱仪。
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