公开(公告)号：US20210199069A1

公开(公告)日：2021-07-01

申请号：US15734052

申请日：2019-05-31

Applicant: Wisconsin Alumni Research Foundation

Inventor： Scott Sanders

IPC: F02F1/18 ,  F01M1/08 ,  F02D33/00 ,  G01N21/31

Abstract: Improved combustion monitoring in an internal combustion engine is provided by an optical port passing through a side wall of the combustion chamber where a front surface of the port may be cleaned by wiping action of piston rings passing across that surface. A thin film of oil distributed by the rings reduces the adhesion of fouling deposits.

公开(公告)号：US12228451B2

公开(公告)日：2025-02-18

申请号：US17885042

申请日：2022-08-10

Applicant: Wisconsin Alumni Research Foundation

Inventor： Scott Sanders

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/42 ,  G01N21/35

Abstract: An absorption spectrometer with self-referencing calibration takes two measurements along a first and second path having different distances through a sample while largely preserving all other aspects of the optical path and system constant. Comparing these two measurements allows extraction of the spectrum largely free from instrument-specific artifacts.

公开(公告)号：US20230057395A1

公开(公告)日：2023-02-23

申请号：US17404345

申请日：2021-08-17

Applicant: Wisconsin Alumni Research Foundation

Inventor： Joseph Andrews ,  Scott Sanders ,  Mario Trujillo

IPC: B41J2/07

Abstract: An aerosol jet printer producing a stream of droplets in a print jet employs direct, droplet-resolving imaging to characterize the statistics of the droplets in flight for improved control of the printed line characteristics.

公开(公告)号：US20250050419A1

公开(公告)日：2025-02-13

申请号：US18231066

申请日：2023-08-07

Applicant: Wisconsin Alumni Research Foundation

Inventor： Scott Sanders ,  Lianyi Chen ,  Matthias Beuting

IPC: B22F10/38 ,  B22F10/28 ,  B22F10/36 ,  B22F10/85 ,  B22F12/41 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Aspects of the disclosure are directed to assessing characteristics of a target from which a vapor plume is generated. As may be implemented with various embodiments, energy (e.g., laser light, an electron beam) is applied to a target and a vapor plume is created therefrom. An interrogation laser is applied toward the target via the vapor plume, and backscattered light from the interrogation laser is detected. The backscattered light is used to detect absorption characteristics of the vapor plume. Energy is further applied to the target, in which the applied energy is adjusted based on the absorption characteristics. Such approaches facilitate the application of energy to a target for a variety of uses.

公开(公告)号：US20240053198A1

公开(公告)日：2024-02-15

申请号：US17885042

申请日：2022-08-10

Applicant: Wisconsin Alumni Research Foundation

Inventor： Scott Sanders

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/10 ,  G01N21/35

CPC classification number: G01J3/0297 ,  G01J3/0224 ,  G01J3/42 ,  G01J3/0208 ,  G01J3/108 ,  G01N21/35 ,  G01N2021/3595

Abstract: An absorption spectrometer with self-referencing calibration takes two measurements along a first and second path having different distances through a sample while largely preserving all other aspects of the optical path and system constant. Comparing these two measurements allows extraction of the spectrum largely free from instrument-specific artifacts.

公开(公告)号：US11890872B2

公开(公告)日：2024-02-06

申请号：US17404345

申请日：2021-08-17

Applicant: Wisconsin Alumni Research Foundation

Inventor： Joseph Andrews ,  Scott Sanders ,  Mario Trujillo

IPC: B41J2/07 ,  B41J2/01 ,  B41J2/17 ,  B41J2/175 ,  B41J2/125 ,  G01N15/14

CPC classification number: B41J2/07 ,  B41J2/01 ,  B41J2/125 ,  B41J2/175 ,  B41J2/1714 ,  G01N15/14 ,  G01N2015/1409

Abstract: An aerosol jet printer producing a stream of droplets in a print jet employs direct, droplet-resolving imaging to characterize the statistics of the droplets in flight for improved control of the printed line characteristics.