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公开(公告)号：US11747197B2
公开(公告)日：2023-09-05
申请号：US17447770
申请日：2021-09-15
Applicant: Endress+Hauser Conducta, Inc.
Inventor： Iouri Kompaniets , Jesus Godinez , Ahmed Fathalla , Budi Komala
CPC classification number: G01J1/46 , G01J1/0488 , G02B7/006 , G02B26/007 , H03F3/45475 , G01J2001/444
Abstract: A photometer and a method of performing photometric measurements with this photometer are described. The photometer comprises a photodetector providing a detector signal corresponding to an intensity of light received by the photodetector; and measurement electronics including: an amplifier and a signal processing device configured to determine and to provide a measurement result based on a measurement signal determined by the signal processing device as or based on an amplified detector signal provided by the amplifier. The signal processing device is configured to determine the measurement signal: a) as or based on the amplified detector signal provided by the amplifier being a multistage amplifier including a transimpedance converter and a voltage to current amplifier; and/or b) in form of a noise reduced signal determined by subtracting a previously determined noise offset included in the amplified detector signal from the amplified detector signal.
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公开(公告)号：US20230077628A1
公开(公告)日：2023-03-16
申请号：US17447770
申请日：2021-09-15
Applicant: Endress+Hauser Conducta, Inc.
Inventor： Iouri Kompaniets , Jesus Godinez , Ahmed Fathalla , Budi Komala
Abstract: A photometer and a method of performing photometric measurements with this photometer are described. The photometer comprises a photodetector providing a detector signal corresponding to an intensity of light received by the photodetector; and measurement electronics including: an amplifier and a signal processing device configured to determine and to provide a measurement result based on a measurement signal determined by the signal processing device as or based on an amplified detector signal provided by the amplifier. The signal processing device is configured to determine the measurement signal: a) as or based on the amplified detector signal provided by the amplifier being a multistage amplifier including a transimpedance converter and a voltage to current amplifier; and/or b) in form of a noise reduced signal determined by subtracting a previously determined noise offset included in the amplified detector signal from the amplified detector signal.
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