| Impedance/Phase Angle vs. Frequency Tested under 1Vrms Oscillation Level | 
                 
                   
                    
                       
                         
                          | 235SR130 Impedance | 
                            |  
                         
                          | 235SR130 Phase Angle | 
                            |                   
                      | 
                 
                  Echo Sensitivity vs Frequency 
                    Tested under 20Vp-p, 40 bursts, 25cm, 20*20 cm Reflected Target | 
                
                
                    | 
                
                  Echo Sensitivity / Ringing 
                    Tested under 20Vp-p, 40 bursts, 25cm, 235 KHz | 
                
                    | 
                
                  | Beam Angle: Tested under 235KHz against a 200 x 200 mm (L x W ) flat target | 
                
                    | 
                
                  Sensitivity vs. Driving Burst Number 
                    Driving voltage 20Vp-p sine wave, Reflection target distance: 25cm @235KHz | 
                
                    | 
                
                  Bandwidth vs. Driving Burst Number 
                    Driving voltage 20Vp-p sine wave, Reflection target distance: 25cm | 
                
                    | 
                
                   Top |