Ultrasonic Doppler for Distance Measurement

Computerized Kymograph for Muscle Contraction Measurement Using Ultrasonic Distance Sensor

Kymograph is a device to record the magnitude of physiological variables, such as: muscle contraction. However, we observe some lacks of the conventional kymographs, such as: result’s visualisation and accuracy. Hence, we propose a computerized-kymograph which can automatically measure, record, and display graphical data of muscle contraction on the computer by using ultrasonic distance sensor....

Ultrasonic distance and velocity measurement by low-calculation-cost Doppler-shift compensation and high-resolution Doppler velocity estimation with wide measurement range

Ultrasonic-Based Distance Measurement Through Discrete Extended Kalman Filter

Ultrasonic-based measurements are extensively used both in research and production field, spanning in endless applications: environment sensing of autonomous mobile robots, high definition imaging of biomedical devices, precise location of micro-flaws in materials, accurate estimation of the level of flammable fluids or dangerous rivers, and so on. The reason of this success mainly relies upon ...

Comparison of Distance Measurement Between Stereo Vision and Ultrasonic Sensor

Problem statement: The traditional approaches in mobile robot research are the use of stereo vision systems to extract range information from pairs of images. One of the difficulties of techniques in navigation is that the intrinsic computational expense of extracting three dimensional information from stereo pairs of images. Approach: To compare performance sensor readings from environment bet...

Ultrasonic colour Doppler imaging.

Ultrasonic colour Doppler is an imaging technique that combines anatomical information derived using ultrasonic pulse-echo techniques with velocity information derived using ultrasonic Doppler techniques to generate colour-coded maps of tissue velocity superimposed on grey-scale images of tissue anatomy. The most common use of the technique is to image the movement of blood through the heart, a...