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1. (WO2018199910) FLUID BACK PRESSURE SENSING WITH A STRAIN SENSOR

Pub. No.:    WO/2018/199910    International Application No.:    PCT/US2017/029214
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Apr 25 01:59:59 CEST 2017
IPC: B41J 2/135
B41J 2/14
B41J 2/055
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors: GARDNER, James M.
FISHER, Berkeley
ANDERSON, Daryl E.
Title: FLUID BACK PRESSURE SENSING WITH A STRAIN SENSOR
Abstract:
A fluidic die may include a substrate having a flexible region opposite a fluid supply passage within the substrate, a nozzle supported by the substrate proximate the flexible region and a strain sensor on the flexible region of the substrate. The strain sensor may sense strain during flexing of the flexible region to sense fluid back pressure changes.