German E + H PMP41 pressure transmitter PMP45 Pressure transmitter Liaoning E + H transmitter / the Tieling E + H E + HPMP41 PMP45 economic intelligent pressure transmitter E + HPMP41 PMP45 intelligent pressure transmitter Liaoning E + H The transmitter / Tieling E + H cerabar M is German E + H's latest pressure measurement products, smart pressure transmitter E + HPMP41/45 set of analog gauges of the economy and the smart meter's advanced nature in one of the reliable and stable high, with communication and self-diagnosis function; modular design to make it more flexible, stainless steel housing to improve the ability to adapt to the special needs of food, medicine and other industries. PMC41, PMP41 its standard, PMC45, PMP45 have different process connections. E + HPMP41 PMP45 intelligent pressure transmitter working principle Xian Ao letter northwest distributor ceramic capacitive pressure sensor Liaoning E + H transmitter / the Tieling E + H this dry ceramic sensor process pressure can act directly on the ceramic diaphragm (offset is less than 0.025 mm). The substrate electrode and the diaphragm electrodes can detect a capacitance change proportional to the pressure. The measuring range is determined by the thickness of the ceramic diaphragm. Diffused silicon piezoresistive pressure sensor process pressure membrane containing a filling solution shifted, and was sent to a resistor bridge on the road. The bridge voltage proportional to the pressure will be measured and processed.