Figure 9. Noncosine directional response, linear output example. 



part of the flow at the meter depth. Circular orbital velocities will be assumed. 

 The flow components, including the steady-state values, will be given by 



t/r = Ux + (4 cos coi (8) 



U^=V2+U^smat (9) 



where U^ and U^ are the flow components shown, 



Ul = steady-state flow component parallel to U^ 



IJ2 = steady-state flow component in the positive z direction 



t/„ = amplitude of the oscillating flow 



The output of the meter at angle (3 can be written as 



JR) (10) 



where 



" " " ' p=o' 



^ I B = = meter output at (3 =0 

 R = meter response at p 

 0< R <1 



18 



