公开(公告)号：US20130258341A1

公开(公告)日：2013-10-03

申请号：US13431676

申请日：2012-03-27

Applicant: David R. DAY ,  Daniel Robert Klevisha

Inventor： David R. DAY ,  Daniel Robert Klevisha

IPC: G01J3/42

CPC classification number: G01J3/0289 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/108

Abstract: A sampling accessory coupled to a hand-held reflectance spectrometer provides expanded sampling area which in turn provides better signal averaging from agricultural products which are often inhomogeneous. The sampling accessory includes a sample site repositioning means and a “sample cup” having a base that is transparent to near IR wavelengths.The hand-held reflectance spectrometer includes a shutter responsive to control signals from the control circuitry. When the shutter is closed, a reference measurement may be made. When the shutter is open, a sample measurement is taken.Sample repositioning and data acquisition within the cup may be performed by several means. Fresh sample regions may be exposed through either manual or motor driven sample cup rotation. Alternatively, the sample may be vibrated to induce fresh sample exposure at the window. A further embodiment includes illumination and/or detection paths that may be altered through electrically driven steering optics.

Abstract translation: 耦合到手持反射光谱仪的采样附件提供扩展的采样区域，其进而提供了通常不均匀的农产品的更好的信号平均。 采样附件包括样品位点重新定位装置和具有对近红外波长透明的基底的“样品杯”。 手持式反射光谱仪包括响应于来自控制电路的控制信号的快门。 当快门关闭时，可以进行参考测量。 当快门打开时，进行样品测量。 杯中的样品重新定位和数据采集可以通过几种方式进行。 新鲜的样品区域可能通过手动或电动驱动的样品杯旋转暴露。 或者，可以振动样品以在窗口处引起新鲜样品曝光。 另一实施例包括可以通过电驱动转向光学器件改变的照明和/或检测路径。

公开(公告)号：US20130321799A1

公开(公告)日：2013-12-05

申请号：US13486846

申请日：2012-06-01

Applicant: David R. DAY ,  Malcolm C. SMITH ,  Peidong WANG

Inventor： David R. DAY ,  Malcolm C. SMITH ,  Peidong WANG

IPC: G01J3/44

CPC classification number: G01J3/32 ,  G01J3/0229 ,  G01J3/0272 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/65 ,  G01N2201/06113

Abstract: A Raman spectrometer including a laser excitation source, edge filters, and detection optics that direct light into a spectrograph. A spectrograph containing a dispersive element and optics that directs various wavelengths of light onto a segmented diffractive MEMS light modulator array. The MEMS array, depending on actuation state, directs light either to or away from a single detector. Control electronics drive the MEMS light modulator for either sequential wavelength measurement or multiplexed wavelength measurement (Hadamard for example).

Abstract translation: 拉曼光谱仪包括激光源，边缘滤光片以及将光引入光谱仪的检测光学器件。 包含分散元件和光学元件的光谱仪，其将各种波长的光引导到分段的衍射MEMS光调制器阵列上。 取决于致动状态的MEMS阵列将光指向或远离单个检测器。 控制电子驱动MEMS光调制器用于顺序波长测量或多路复用波长测量（例如Hadamard）。