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Piezoresistive Differential Pressure Transmitter suppliers

The sensitive element of the YZB490 differential pressure transmitter is a solid piezoresistive sensitive chip. The spaces between the chip and the two convoluted diaphragms are injected with silicone oil. The differential pressure exerts a force on the convoluted diaphragms at the two ends, squeezing the silicone oil in between which then transmits it to the sensitive chip. And the sensitive chip is connected with signal treatment circuit by conductor wire. The piezoresistive effect of semiconductor silicon material is employed by the product to realize the conversion between differential pressure and electric signal. Due to the good linear relationship between the signal outputted by the Wheatstone bridge on the sensitive chip and the differential pressure, the differential pressure can be measured correctly. It is suitable for measuring differential pressures in various air or liquid pipes of different industries, such as oil, chemical and electrical industries, as well as hydrological sector.



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