Ultrasonic sensors imaging

Micro CCD image sensor Fiberscope Micro-ultrasonic sensor Micro-tactile sensor Small size, full field image sensor Small (0.2 mm diameter) field vision scope using SMAcoil actuators Detects flaws in small pipes Detects proximity between the end of catheter and blood vessels... 

A further development indicated that a thin piooclectric transducer coupled directly to the extended gate of a MOS transistor can be processed into an ultrasonic sensor which can serve as the basis of an ultrasonic imaging array [49]. Preliminary results obtained, showing the ability of the ultrasonic sensor to receive signals in acqueous medium at megahertz frequencies, indicate the feasibOity of an integrated ultrasonic array sensor for ntedical applications. 

KYNAR Piezo film applications include a noise-cancelling telephone headset, infrared sensing, anti-intrusion devices, an ultrasonic gas flow respiration monitor, and a high-fidelity electric violin. Other potential uses now in development include computer switches, keyboards and printers, ultrasonic imaging systems for medical diagnosis, and robotic tactile sensors. 

Tomography is the nonobtrusive localized measurement of velocity, density, concentration, and so on, in three dimensions. An image is built up from the responses of an array of sensors around the periphery of the domain. A variety of signals have been used in mixing vessels, including light, x-ray, yray, ultrasonic, positron, magnetic resonance, and electrical resistance and capacitance. 

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