傳感器畢業(yè)設(shè)計外文翻譯--傳感器新技術(shù)的發(fā)展-其他專業(yè)(參考版)
2025-01-23 07:23本頁面
【正文】 Has the data munication interface, can and the microputer direct munication. The sensor, the signal adjustment electric circuit, the monolithic integrated circuit integration forms ultra largescale integrated on a chip the senior intelligence sensor. American HONY WELL Corporation ST3000 intelligence sensor, the chip size only then has 342mm3, uses the semiconductor craft, makes CPU, EPROM, the static pressure, the differential pressure, the temperature on the identical chip and so on three kind of sensitive units. The intellectualized sensor research and the development, US is at the leading position. American Space Agency when development spaceship called this kind of sensor for the clever sensor (Smart Sensor), on the spaceship this kind of sensor is extremely important. Our country in this aspect research and development also very backward mainly is because our country semiconductor integrated circuit technological level is limited. The sensor’s development is changing day after day since especially the 8039。 Has from the diagnosis and from the calibration function, enhances the reliability。s frequency difference correspondence different pressure, measures the pressure with the frequency difference method, may eliminate the error which factor and so on ambient temperature brings. When ambient temperature change, two resonant Liang frequencies and the amplitude variation are same, after two frequency differences, its same change quantity can counterbalance mutually. It’s survey most high accuracy may reach %FS. American Silicon Microstructure Inc.(SMI) the pany develops a series of low ends, linear in % to 65% scope silicon micro pressure transmitter, the lowest full measuring range is (1KPa), it makes take the silicon as the material, has the unique three dimensional structure, the light slight machinefinishing, makes the wheat stone bridge many times with the etching on the silicon diaphragm, when above silicon chip stress, it has the distortion, the resistance produces presses the anti effect but to lose the bridge balance, the output and the pressure bees the proportion the electrical signal. Such silicon micro sensor is the front technology which now the sensor develops, Its essential feature is the sensitive unit vol ume is a micron magnitude, Is the traditional sensor several dozens, several 1%. In aspect and so on industry control, aerospace domain, biomedicine has the vital role, like on the airplane the use may reduce the airplane weight, reduces the energy. Another characteristic is can be sensitive is small surveyed, may make the blood pressure pressure transmitter. The Chinese aviation main corporation Beijing observation and control technical research institute, the development CYJ series splashes thanks the membrane pressure transmitter is uses the ion sputtering craft to process the metal strain gauge, it has over e the nonmetallic strain gauge easily the temperature influence insufficiency, has the high stability, is su
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