公开(公告)号：US20250035473A1

公开(公告)日：2025-01-30

申请号：US18717047

申请日：2022-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joerg Hahn ,  Knut Schumacher ,  Benjamin Muenstermann ,  Robert J. Bialluch ,  Waleri Wischnepolski ,  Christian Weinmann ,  Michael Bahners ,  David M. Rudek ,  John A. Merchant ,  Alissa P. Wenner ,  Patrick G. Zimmerman ,  Vincent Jusuf ,  Kyle R. Hubbs ,  Max Kontak ,  Brijesh Gupta Chagi Ramesh ,  Robert J. Koch ,  Andreas M. Geldmacher ,  Marcus Saurborn ,  Kalc C. Vang

IPC: G01F1/64 ,  G01K13/02 ,  G01N27/07 ,  G01N27/08

Abstract: An electrical property sensor is presented that includes a printed circuit board with a first face separated from a second face by a thickness, the first face having a length and a width. The sensor also includes an aperture extending from a first face of the printed circuit board to a second face of the printed circuit board. The aperture includes a receiving electrode and a transmitting electrode. When a fluid flows through the aperture and a voltage is provided at the transmitting electrode, a cunent flow is measured at the receiving electrode.