Outdoor air temperature measuring instrument comprising a device for avoiding measurement errors during strong winds

摘要

The apparatus includes a device for ventilating with an electrically driven fan arranged in a common sensor housing with an air inlet and an air outlet. The ventilating device has a venturi nozzle whose housing is connected to the air outlet via an additional air conduit orthogonal to the flow direction. A vacuum is generated when ambient air flows through the venturi nozzle to the air outlet.