British researchers in London on the 17th said they made the world's smallest ultrasonic level gauge. It is so small that it can be lined up on a piece of hair. This result can be widely used to explore the micro-environment inside the cell. British University of Nottingham issued a communique that day, the school of Applied optical research team to create such a miniature ultrasonic level gauge. It is much smaller than existing ultrasonic sensors, and 500 of these sensors line up to reach the width of a single hairline. It has both ultrasonic and optical properties, slightly distorts when it senses the ultrasound, and the distortion can be detected by the laser irradiating it to obtain the ultrasound information; in turn, if it is given a laser pulse, it also Can be excited out of the ultrasound, the detection target. Researcher Matt Clarke said the rise of nanotechnology has brought the need for miniature ultrasound probes, and the new devices they have developed extend the technology of ultrasound to nanoscale. At present, people are more familiar with the application of ultrasound is a medical examination, this new device can be used to ultrasound inside a cell to provide the past, difficult to obtain physiological information. Can also be used for liquid height measurement. In addition, the ultrasonic sensor has a high resolution and uses a sonic frequency that exceeds the frequency of visible light, so it can in theory obtain images that are clearer than the best optical microscopes.
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Britain made the world's smallest ultrasonic transmission level gauge
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