English
русскийPressure transmitter is the most commonly used sensor in industrial practice. It is widely used in various industrial automation environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil wells, electric power, ships , machine tools, pipelines and many other industries.
There are two types of pressure transmitters: electric and pneumatic. The electric unified output signal is DC signal such as 0~10mA, 4~20mA or 1~5V. The pneumatic unified output signal is a gas pressure of 20-100Pa.
Pressure transmitters can be divided into force (torque) balance type, capacitive type, inductive type, strain type and frequency type according to different conversion principles. The following briefly introduces the principle, structure, Knowledge of use, maintenance and calibration. [2]
The main function of the pressure transmitter is to transmit the pressure signal to the electronic equipment, and then display the pressure on the computer. The magnitude of the current has a linear relationship, generally a proportional relationship. Therefore, the voltage or current output by the transmitter increases as the pressure increases, thereby obtaining a relationship between pressure and voltage or current. The two pressures of the measured medium of the pressure transmitter are passed into the high and low pressure chambers , The pressure of the low pressure chamber adopts atmospheric pressure or vacuum, which acts on the isolation diaphragm on both sides of the delta element (ie, the sensitive element), and is transmitted to both sides of the measuring diaphragm through the isolation diaphragm and the filling liquid in the element.
The pressure transmitter is composed of a measuring diaphragm and electrodes on both sides of the insulating sheet to form a capacitor. When the pressure on both sides is inconsistent, the measuring diaphragm is displaced, and the displacement is proportional to the pressure difference, so the capacitances on both sides are not equal, through the oscillation and demodulation links.
PB8101CNM pressure transmitters
Ningbo Qingyang Automation Technology Co., Ltd. is famous China Automation Transmitters Manufacturers and OEM/ODM Automation Transmitters Factory. We have advanced and complete top-notch testing equipment in the industry, physical testing laboratories, automatic pressure calibration equipment, automatic temperature calibration equipment, wholesale automation transmitters etc. The above equipment can fully ensure the provision of high-precision final Custom automation transmitters to customers, and can ensure that customers can meet all-round testing requirements for physical and chemical properties of materials, high-precision geometric dimension testing, etc.
PB8101CNM pressure transmitters
Ningbo Qingyang Automation Technology Co., Ltd. is famous China Automation Transmitters Manufacturers and OEM/ODM Automation Transmitters Factory. We have advanced and complete top-notch testing equipment in the industry, physical testing laboratories, automatic pressure calibration equipment, automatic temperature calibration equipment, wholesale automation transmitters etc. The above equipment can fully ensure the provision of high-precision final Custom automation transmitters to customers, and can ensure that customers can meet all-round testing requirements for physical and chemical properties of materials, high-precision geometric dimension testing, etc.
