Patent ID: 11965807
Assignee: SENSIRION AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The duct probe of claim 4,
wherein the inflow opening has a first hydraulic diameter D1, wherein the compensation channel has a second hydraulic diameter D2, and wherein a downstream end of the inflow opening and an upstream end of the compensation channel are spaced by a distance W,
wherein an opening angle a is defined by the following equation:, tan
      ⁢
      α
    
    =
    
      
        
          (
          
            
              D
              ⁢
              
                
              
              ⁢
              2
            
            -
            
              D
              ⁢
              
                
              
              ⁢
              1
            
          
          )
        
        /
        2
      
      ⁢
      W
    
  
  ,

and wherein the opening angle α is in the range of 2° to 4°.