Anhui Star Control Instrument Co., Ltd.

Anhui Star Control Instrument Co., Ltd.

Pressure transmitter classification

The basic principle of multi-sensor information fusion technology is just like the human brain's process of comprehensively processing information. Various sensors perform multi-level and multi-space information complementation and optimization and combination processing, and eventually produce a consistent interpretation of the observation environment. In this process, it is necessary to make full use of multi-source data for reasonable dominance and use. The ultimate goal of information fusion is to obtain more useful information by combining multiple levels of information and multiple combinations of information based on the separated observation information obtained by each sensor. This not only utilizes the advantages of multiple sensors working in tandem with each other, but also comprehensively processes data from other sources to improve the intelligence of the entire sensor system.
Flat film pressure change
Flat film pressure change
Pressure sensors are the most widely used type of sensors. The traditional pressure sensor is mainly composed of a mechanical structure type device, and the pressure is indicated by the deformation of the elastic element. However, this structure has a large size and a heavy weight and cannot provide electrical output. With the development of semiconductor technology, semiconductor pressure sensors have also emerged. Its characteristics are small size, light weight, high accuracy and good temperature characteristics. In particular, with the development of MEMS technology, semiconductor sensors have developed toward miniaturization, and they have low power consumption and high reliability.
Diffused silicon pressure transmitter
The diffusion silicon pressure transmitter is manufactured by encapsulating isolated silicon piezoresistive pressure sensitive elements in a stainless steel housing. It can convert the sensed liquid or gas pressure into a standard electrical signal for external output. The DATA-52 series diffusion silicon pressure transmitter is widely used in on-site measurement and control of industrial processes such as power supply/drainage, thermal power, petroleum, chemical, and metallurgy. .
Diffused Silicon Pressure Transmitter DATA-52 Series
Diffused Silicon Pressure Transmitter DATA-52 Series
Diffused Silicon Pressure Transmitter DATA-52 Series
Diffused Silicon Pressure Transmitter DATA-52 Series
Performance:
Measuring medium: liquid or gas (no corrosion on stainless steel housing)
Range: 0-10MPa
Accuracy class: 0.1% FS, 0.5% FS (optional)
Stability performance: ±0.05% FS/year; ±0.1% FS/year
Output signal: RS485, 4~20mA (optional)
Overload capacity: 150% FS
Zero temperature coefficient: ±0.01%FS/°C
Full-scale temperature coefficient: ±0.02% FS/°C
Protection level: IP68
Ambient temperature: -10°C~80°C
Storage temperature: -40°C~85°C
Power supply: 9V ~ 36V DC;
Structural material: Shell: Stainless steel 1Cr18Ni9Ti
Sealing ring: fluorine rubber
Diaphragm: Stainless Steel 316L
Cable: φ7.2mm polyurethane special cable
Semiconductor pressure resistance type
The semiconductor piezoresistive diffusion pressure sensor forms a semiconductor deformation pressure on the surface of the sheet, deforms the sheet by an external force (pressure) to generate a piezoresistive effect, thereby converting the impedance change into an electric signal.
Electrostatic capacity type
A capacitance type pressure sensor forms a capacitance by opposing a fixed pole of a glass and a movable pole of silicon, and converts a change in the capacitance generated by the deformation of the movable pole by an external force (pressure) into an electrical signal.
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