FLUID ANALYZER WITH SELF-CHECK, LEAK DETECTION, AND ADJUSTABLE GAIN

    公开(公告)号:US20230061661A1

    公开(公告)日:2023-03-02

    申请号:US17792115

    申请日:2021-01-28

    Abstract: A fluid analyzer (214) that analyzes a sample (12) includes an analyzer frame (236); a test cell assembly (242) that receives the sample (12); a laser assembly (238) that generates a laser beam (239A) a signal detector assembly (232) and a self-check assembly (230). The self-check assembly (230) includes (i) a check frame (230A); (ii) a check substance (230E) with known spectral characteristics; and (iii) a check frame mover (230B) that selectively moves the check frame (230A) between a self-check position (231 B) and a test position (231 A) relative to the analyzer frame (236). In the self-check position (231 B), the laser beam (239A) is directed through the check substance (230E) to evaluate the performance of the fluid analyzer (214). In the test position (231 A), the laser beam (239A) is directed through the sample (12) in the test cell assembly (242) to evaluate the sample (12).

    Low-noise spectroscopic imaging system

    公开(公告)号:US10365158B2

    公开(公告)日:2019-07-30

    申请号:US15997452

    申请日:2018-06-04

    Abstract: A spectral imaging device (12) includes an image sensor (28), an illumination source (14), a refractive, optical element (24A), a mover assembly (24C) (29), and a control system (30). The image sensor (28) acquires data to construct a two-dimensional spectral image (13A) during a data acquisition time (346). The illumination source (14) generates an illumination beam (16) that illuminates the sample (10) to create a modified beam (16I) that follows a beam path (16B) from the sample (10) to the image sensor (28). During the data acquisition time (346), the control system (30) controls the illumination source (14) to generate the illumination beam (16), and controls the image sensor (28) to capture the data. Further, during the data acquisition time (346), an effective optical path segment (45) of the beam path (16B) is modulated.

    SPECTRAL IMAGING OF A SAMPLE USING A PLURALITY OF DISCRETE MID-INFRARED WAVELENGTHS
    6.
    发明申请
    SPECTRAL IMAGING OF A SAMPLE USING A PLURALITY OF DISCRETE MID-INFRARED WAVELENGTHS 有权
    使用多个中红外波长的多样性进行样品的光谱成像

    公开(公告)号:US20150323384A1

    公开(公告)日:2015-11-12

    申请号:US14796858

    申请日:2015-07-10

    Abstract: Spectrally analyzing an unknown sample (10A) includes (i) providing a spatially homogeneous region (10B) of the unknown sample (10A); (ii) directing a plurality of interrogation beams (16) at the spatially homogeneous region (10B) with a laser source (14), (iii) acquiring a separate output image (245) while the unknown sample (10A) is illuminated by each of the interrogation beams (16) with an image sensor (26A); and (iv) analyzing less than fifty output images (245) to analyze whether a characteristic is present in the unknown sample (10A) with a control system (28) that includes a processor. Each of the interrogation beams (16) is nominally monochromatic and has a different interrogation wavelength that is in the mid-infrared spectral range.

    Abstract translation: 光谱分析未知样品(10A)包括(i)提供未知样品(10A)的空间均匀区域(10B); (ii)用激光源(14)在空间均匀区域(10B)处引导多个询问光束(16),(iii)获取单独的输出图像(245),而未知样品(10A)被每个 的询问光束(16)与图像传感器(26A)相连; 以及(iv)分析少于五十个输出图像(245)以分析具有包括处理器的控制系统(28)的未知样本(10A)中的特征是否存在。 每个询问光束(16)名义上是单色的,并且具有在中红外光谱范围内的不同的询问波长。

    A LASER SPECTRAL IMAGING AND CAPTURE MICRODISSECTION MICROSCOPE

    公开(公告)号:US20190257723A1

    公开(公告)日:2019-08-22

    申请号:US16348121

    申请日:2017-11-08

    Abstract: An imaging and capture micro-dissection microscope (12) for spectrally analyzing a sample (10) and isolating a region of interest (210) in the sample (10) includes (i) a stage (26A) that retains the sample (10); (ii) an analysis laser assembly (14) that generates a coherent interrogation beam (16A) that is directed at the sample (10), the interrogation beam (16A) having a center wavelength that is in the infrared region; (iii) an image sensor (24A) that receives light from the sample (10), the image sensor (24A) capturing image information that is used to identify the region of interest (210) in the sample (10); (iv) a separation assembly (18) that separates the region of interest (210) from the sample (10) while the sample (10) is retained by the stage (26A); and (v) a capturing assembly (20) that captures the region of interest (210).

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