Ultrasound Calculator
Ultrasound Calculation
Frequency, Velocity, and Wavelength
Transducer Acoustic Stack
Transducer RLC Model
Transducer Tuning
Flat Piston Transducer
Concave Piston Transducer
Linear Array
Phased Array
Flat Piston Aperture Radiation Field:
Center Frequency: MHz
Aperture Diameter: mm
Parameters: Length of Near Field; Main Lobe Width
At depth of
mm and
At angle of
deg to the aperture center line
The normalized acoustic intensity is
The acoustic radiation pattern or beam profile from a flat piston ultrasound transducer is the most fundamental part of the ultrasound imaging resolution theory. The lateral resolution is determined by the ultrasound beam width which is a function of aperture diameter and frequency. For given frequency and aperture diameter, the calculator will give the length of near field or Fresnel zone, and the width of main lobe. At given distance, with a small angle to the central axis, the normalized intensity is calculated.