It seems like the two lie -detecting techniques developed by researchers, the Psychological Stress Evaluator (PSE) and the Voice Stress Analyser (VSA), have been incorporated into this little gadget.
A mathematical model, which is used to calculate ultrasonic pressure distribution on the beam axis of ultrasonic immersion focusing probe, was established by using the method of Fresnel Circular Band.
An universal equation, which can directly used to compute the compensation resulted the surface roughness, was deduced according to the flat-bottomed echo formula.
A new direction of arrival estimation method is proposed using a single vector hydrophone, which is composed of three spatially co-located but orthogonally oriented velocity hydrophone plus another co-located pressure hydrophone.
Abstract: After the concept of the acoustic transfer has been explained, a method on the basis of the test results to solve the acoustic transfer is presented, that is to slove the system of linear equations about the acoustic transfers based on measurement of frequency response between exciting force and velocity, exciting force and the point pressure in cavities.
By using double - exposed holographic interferometry, the distribution ofsound pressure in the acoustic levitation field is analyzed.