Sensor shields for exhaust treatment systems of work vehicles

An exhaust treatment system for a work vehicle, the system comprising:

• a selective catalytic reduction (SCR) system configured to react a mixture of exhaust reductant and engine exhaust with a catalyst to generate a treated exhaust, the SCR system including an SCR outlet for expelling the treated exhaust therefrom;
• a flow conduit including an upstream end and a downstream end, the flow conduit in fluid communication with the SCR outlet for receiving the treated exhaust expelled from the SCR system;
• an exhaust sensor positioned within the flow conduit between the upstream and downstream ends, the exhaust sensor being configured to detect an amount of an emission gas present in the treated exhaust;
• and
• a sensor shield positioned within the flow conduit upstream of the exhaust sensor, the sensor shield comprising a central hub and a plurality of flow divider beams, each flow divider beam including a proximal end coupled to or formed with the central hub and a distal end opposite the proximal end, the plurality of flow divider beams extending radially outwardly from the central hub such that the distal end of each flow divider beam is spaced apart radially outwardly from the central hub, the sensor shield creating a wake area downstream of the central hub within which a turbulent exhaust flow is generated as the treated exhaust is directed past the sensor shield, the exhaust sensor configured to receive the turbulent exhaust flow from the wake area,
• wherein the central hub is generally aligned with a centerline of the sensor shield and is configured to block the treated exhaust from flowing along the centerline as the treated exhaust is directed past the sensor shield.