Van Oortmevssen 



WAVE PROBE 



4* 



223 m 



96i 



CYLINDER 



WAVE 



d =50m 



S 



TEST ARRANGEMENT A 



nv.Y>v. 

 PANTOGRAPH- 



98 m 



K 



_s 



096 



BOWHAWSER 



d = 50 m 



TEST ARRANGEMENT B 



c 



PANTOGRAPH- 



50 m 



IE 



s 



BOWHAWSER 



d = 50 m 



TEST ARRANGEMENT C 



Figure 16 The experimental set-up. 



992 



