Patent ID: 11957514
Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Medical technology (Instruments)
Classification: CPC A  B  G | IPC A

Claim 8:
9. The flexible ultrasonic imaging apparatus according to claim 8, wherein the first capacitance C1 is calculated by the following Equation, and, C
   1
  
  =
  
   
    ε
    r
   
   ⁢
   
    ε
    0
   
   ⁢
   
    
     t
     ×
     L
    
    d
   
  
 

the second capacitance C2 is calculated by the following Equation,, C
   2
  
  =
  
   
    ε
    r
   
   ⁢
   
    ε
    0
   
   ⁢
   
    
     lim
     
      n
      →
      ∞
     
    
    
     
      ∑
      
       k
       =
       1
      
      n
     
     
      
       
        (
        
         L
         -
         
          2
          ⁢
          Δ
          ⁢
          
           t
           ·
           sin
          
          ⁢
          
           
            θ
            2
           
           ·
           
            (
            
             k
             -
             1
            
            )
           
          
         
        
        )
       
       ×
       Δ
       ⁢
       t
      
      
       d
       +
       
        2
        ⁢
        Δ
        ⁢
        
         t
         ·
         sin
        
        ⁢
        
         
          θ
          2
         
         ·
         
          (
          
           k
           -
           1
          
          )
         
        
       
      
     
    
   
  
 

where t denotes a length in a direction perpendicular to a surface of the substrate of the plurality of arrays, L denotes a length in a direction parallel to a surface of the substrate of the plurality of arrays, d denotes the distance between the adjacent arrays, θ denotes an angle between the adjacent arrays by the deformation of the substrate, and εr and ε0 represent dielectric constants of the substrate and vacuum respectively.