公开(公告)号：US09829378B1

公开(公告)日：2017-11-28

申请号：US15292593

申请日：2016-10-13

Applicant: Bentley Instruments, Inc.

Inventor： Craig Parsons ,  Henrik Lyder

IPC: G01N21/00 ,  G01J3/02 ,  G01J3/42 ,  G01B11/02

CPC classification number: G01J3/027 ,  G01B11/02 ,  G01J3/0267 ,  G01J3/28 ,  G01J3/42 ,  G01N21/274 ,  G01N21/3577 ,  G01N33/04

Abstract: A transmission spectroscopy device can direct light into a sample, and determine properties of the sample based on how much light emerges from the sample. The device can use a cell to contain the sample, so that the size of the cell defines the optical path length traversed by light in the sample. To ensure accuracy in the measurements, it is beneficial to calibrate the device by measuring the size of the cell periodically or as needed. To measure the size of the cell, the device can perform a transmission spectroscopy measurement of a known substance, such as pure water, to produce a measured absorbance spectrum of the known substance. The device can subtract a known absorbance spectrum of the known substance from the measured absorbance spectrum to form an oscillatory fringe pattern. The device can determine the size of the cell from a period of the fringe pattern.

公开(公告)号：US10156474B2

公开(公告)日：2018-12-18

申请号：US15723912

申请日：2017-10-03

Applicant: Bentley Instruments, Inc.

Inventor： Craig Parsons ,  Henrik Lyder

IPC: G01N21/00 ,  G01J3/02 ,  G01J3/42 ,  G01B11/02 ,  G01J3/28 ,  G01N21/3577 ,  G01N33/04 ,  G01N21/27

Abstract: A transmission spectroscopy device can direct light into a sample, and determine properties of the sample based on how much light emerges from the sample. The device can use a cell to contain the sample, so that the size of the cell defines the optical path length traversed by light in the sample. To ensure accuracy in the measurements, it is beneficial to calibrate the device by measuring the size of the cell periodically or as needed. To measure the size of the cell, the device can perform a transmission spectroscopy measurement of a known substance, such as pure water, to produce a measured absorbance spectrum of the known substance. The device can subtract a known absorbance spectrum of the known substance from the measured absorbance spectrum to form an oscillatory fringe pattern. The device can determine the size of the cell from a period of the fringe pattern.

公开(公告)号：US20180106670A1

公开(公告)日：2018-04-19

申请号：US15723912

申请日：2017-10-03

Applicant: Bentley Instruments, Inc.

Inventor： Craig Parsons ,  Henrik Lyder

IPC: G01J3/02 ,  G01J3/42 ,  G01B11/02

CPC classification number: G01J3/027 ,  G01B11/02 ,  G01J3/0267 ,  G01J3/28 ,  G01J3/42 ,  G01N21/274 ,  G01N21/3577 ,  G01N33/04

Abstract: A transmission spectroscopy device can direct light into a sample, and determine properties of the sample based on how much light emerges from the sample. The device can use a cell to contain the sample, so that the size of the cell defines the optical path length traversed by light in the sample. To ensure accuracy in the measurements, it is beneficial to calibrate the device by measuring the size of the cell periodically or as needed. To measure the size of the cell, the device can perform a transmission spectroscopy measurement of a known substance, such as pure water, to produce a measured absorbance spectrum of the known substance. The device can subtract a known absorbance spectrum of the known substance from the measured absorbance spectrum to form an oscillatory fringe pattern. The device can determine the size of the cell from a period of the fringe pattern.