| 摘要 |
<p>1. Measuring sensor intended to be situated in the open air, comprising an air-permeable casing (8, 10) containing a temperature-sensitive element (11) and a heating resistor (12), characterised in that the permeability to air of the casing is achieved either by fine slits (13) of a width less than a few tenths of a millimetre and a length of several millimetres, distributed over the surface of the casing, or by porous material constituting at least part of the casing wall.</p> |
