公开(公告)号：US20210072161A1

公开(公告)日：2021-03-11

申请号：US17012261

申请日：2020-09-04

Applicant: EMCEE ELECTRONICS, INC.

Inventor： Ryan Matthew Case

IPC: G01N21/78

Abstract: Ways of detecting an aqueous solution in a glycol ether are provided, including detecting an aqueous solution, such as diesel exhaust fluid (DEF) in fuel system icing inhibitor (FSII). A metal salt and the glycol ether are combined, and the glycol ether is identified as including the aqueous solution when the combined metal salt and the glycol ether result in a color change. The presence of the aqueous solution, including the presence of ammonia derived from urea, can indicate contamination of FSII with water and/or DEF and identify the container or reservoir of FSII as unsuitable for addition to aviation fuel.

公开(公告)号：US09804086B2

公开(公告)日：2017-10-31

申请号：US15145836

申请日：2016-05-04

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N33/22 ,  G01N21/35

CPC classification number: G01N21/3577 ,  G01N33/22 ,  G01N2021/3595 ,  G01N2201/0221 ,  G01N2201/062 ,  G01N2201/0686

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

公开(公告)号：US20160245742A1

公开(公告)日：2016-08-25

申请号：US15145836

申请日：2016-05-04

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N33/22

CPC classification number: G01N21/3577 ,  G01N33/22 ,  G01N2021/3595 ,  G01N2201/0221 ,  G01N2201/062 ,  G01N2201/0686

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

公开(公告)号：US09797830B2

公开(公告)日：2017-10-24

申请号：US14936737

申请日：2015-11-10

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N21/31 ,  G01N21/359 ,  G01N21/35

CPC classification number: G01N21/3577 ,  G01N21/3103 ,  G01N21/359 ,  G01N2021/3595 ,  G01N2201/0612 ,  G01N2201/0621

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

公开(公告)号：US20160139040A1

公开(公告)日：2016-05-19

申请号：US14936737

申请日：2015-11-10

Applicant: Emcee Electronics, Inc.

Inventor： Ryan Matthew Case

IPC: G01N21/3577 ,  G01N21/31

CPC classification number: G01N21/3577 ,  G01N21/3103 ,  G01N21/359 ,  G01N2021/3595 ,  G01N2201/0612 ,  G01N2201/0621

Abstract: A device and method of use are provided for measuring the concentration of fatty acid methyl ester (FAME) in jet fuel to a limit of detection of 1 ppm. The device measures concentration of FAME in jet fuel via Fourier transform infrared spectroscopy (FTIR) with a spectral resolution of 1 cm−1. The device can use an infrared light emitting diode (IR LED) and mercury cadmium telluride (MCT) detector in which the spectral output of the IR LED and the spectral response of the MCT detector is centered on the spectral absorbance of an ester bond, a defining spectral characteristic of FAME. Other IR LEDs with differing spectral outputs can be used to measure the presence and/or concentration of different analytes in different fluids.

Abstract translation: 提供了一种装置和使用方法，用于将喷气燃料中的脂肪酸甲酯（FAME）的浓度测量到1ppm的检测限。 该装置通过傅里叶变换红外光谱（FTIR）测量喷气燃料中FAME的浓度，光谱分辨率为1 cm -1。 该装置可以使用红外发光二极管（IR LED）和碲化汞镉（MCT）检测器，其中IR LED的光谱输出和MCT检测器的光谱响应以酯键的光谱吸收为中心， 定义FAME的光谱特征。 具有不同光谱输出的其他红外LED可用于测量不同流体中不同分析物的存在和/或浓度。