In this paper, a liquid multi-parameter decoupling method with only one Lamb wave sensor is presented. In a Lamb wave sensor, antisymmetric modes (A(01) mode for low frequency, A(03) mode for high frequency) and symmetric modes (S(0) mode) are used to detect multiple parameters of a liquid, such as its density, sound velocity, and viscosity. We found they can play very different roles in the de...

Objectives: To summarize current excellent research in the field of medical sensor, signal and imaging informatics. Method: Synopsis of the articles selected for the IMIA (International Medical Informatics Association) Yearbook 2010. Results: Current research in the field of sensor, signal, and imaging informatics is characterized by theoretically sound techniques and evaluations with focus in ...

In this research, a two dimensional acoustic vector sensor is used to determine the direction of arrival (DOA) of a sound source relative to the sensor. Existing solutions have focussed on using two acoustic vector sensors (AVS) or an array of AVS and not on using one AVS. This paper focusses on the accuracy of a sound source localization algorithm and the influence of ambient noise and reflect...

This paper describes a new method for determining range information about a robot's surroundings using low resolution ultrasonic sensors. These sensors emit ultra-sound which bounces oo of nearby objects and returns to the sensor. The time-of-ight for the sound to return to the sensor is the distance between the sensor and the object. A sonar arc represents the possible locations of the object....

Most commercially available cochlear implants and hearing aids use microphones as sensors for capturing the external sound field. These microphones are in general located in an external element, which is also responsible for processing the sound signal. However, the presence of the external element is the cause of several problems such as discomfort, impossibility of being used during physical ...