Find the expected velocity of the blood flow in the vessel, if the frequency shifting is 1.2kHz and the transducer frequency of 15MHz. The angle between an incident ultrasound beam and the direction of motion of the object is 30o. Calculate the percent error in the estimate if the angle of sonation is incorrect by as much as 3 degrees.

Find the expected velocity of the blood flow in the vessel, if the frequency shifting is 1.2kHz and the transducer frequency of 15MHz. The angle between an incident ultrasound beam and the direction of motion of the object is 30o. Calculate the percent error in the estimate if the angle of sonation is incorrect by as much as 3 degrees.