US 12,188,797 B2
Spray flow sensing with magnetic carrier
Garrett Maurer, Moorhead, MN (US); Justin Jee, Fargo, ND (US); Dan Bjertness, Fargo, ND (US); and Ross Eickhoff, Fargo, ND (US)
Assigned to Intelligent Agricultural Solutions, LLC, Fargo, ND (US)
Filed by Intelligent Agricultural Solutions LLC, Fargo, ND (US)
Filed on Jul. 19, 2022, as Appl. No. 17/813,513.
Claims priority of provisional application 63/224,119, filed on Jul. 21, 2021.
Claims priority of provisional application 63/224,206, filed on Jul. 21, 2021.
Prior Publication US 2023/0023497 A1, Jan. 26, 2023
Int. Cl. G01F 1/115 (2006.01); G01R 33/07 (2006.01); A01M 7/00 (2006.01)
CPC G01F 1/1155 (2013.01) [G01R 33/072 (2013.01); A01M 7/0042 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A flow rate sensor system for an agricultural sprayer, the flow rate sensor system comprising:
a drum housing and a central passage housing defining a first flow path comprising a first portion generally parallel to an axis and a second vortex portion around the axis;
a Hall-effect sensor disposed facing the axis;
a Hall-effect sensor window in a display housing and disposed between the Hall-effect sensor and the axis;
a magnetic carrier within the drum housing, wherein the magnetic carrier is configured to rotate about the axis when fluid flows through the first flow path; and
at least one magnet positioned in the magnetic carrier,
wherein the central passage housing defines a second flow path generally parallel to, and in an opposite direction of, the first flow path.