Silicon Pressure Sensors use the piezoresistive effect of semiconductor silicon material itself and integrated circuit technology.
After the semiconductor silicon material is subjected to pressure or tension, its resistivity will change. Then, through the integrated circuit or the signal conditioning conversion circuit, the electrical signal proportional to the change of the corresponding pulling force or pressure can be output.
Silicon Pressure Sensors are widely used in the measurement of physical quantities such as tension, pressure and pressure difference. It can also be used in liquid level, weight, strain, speed, vacuum, flow detection, etc.
Silicon pressure sensor, also known as Diffused silicon pressure sensor. Piezoresistive diffusion silicon pressure transmitter, Silicon pressure transducer, also are this pressure sensors. Silicon pressure sensors are low cost. Silicon pressure sensors can work for pressure and differential pressure measurement. Sino-Inst can offer you with optical, according to your requirements. Silicon pressure sensors can work for water, air, gas, vacuum measurement.
Silicon Pressure Sensor Features
- Output stability and high sensitivity.
General strain gauge sensor output is only about 10mV. The full-scale output of the diffused silicon sensor is about 100mV. The influence of factors such as interference and noise is relatively small. The cost of the amplifying circuit is also reduced accordingly. Resolution is greatly improved. No dead zone near zero pressure. At present, the minimum size of the diffusion silicon pressure core is 10mm in diameter.
- High precision and good repeatability.
Diffusion silicon piezoresistive pressure sensor realizes pressure sensing, pressure transmission, and force-electric conversion on the same element. No intermediate conversion links. No pressure lag. Mechanical displacement deformation. Guaranteed minimal repeatability and hysteresis errors, and good linearity. No creep, stable, reliable and long life. Sino-Inst offers 0.1% accuracy, 0.25% accuracy and 0.5% accuracy silicon pressure transmitters.
- Good temperature characteristics
Due to the use of advanced technologies such as laser resistance adjustment, computer compensation and ingenious control of the diffusion concentration, the full-scale temperature drift (sensitivity temperature coefficient) is self-compensated. The temperature compensation range is generally -10-60 °C. It overcomes the large temperature coefficient of the semiconductor wafer itself. The defects of the diffusion silicon pressure transmitter control the zero position and full scale temperature drift to a smaller range, and widen the use temperature range.
- Suitable for applications in dangerous and explosive fields and places
Diffusion silicon pressure transmitter has the characteristics of low current, low voltage and low power consumption. It is an intrinsically safe explosion-proof product.
- High reliability and anti-interference performance
The diffusion silicon pressure transmitter adopts a series of protection measures such as stainless steel material and special protective structure, and a series of protection measures such as lightning strike, anti-interference, anti-overvoltage, and overcurrent of the amplifier circuit. It improves the reliable sealing, anti-corrosion and anti-harsh work. Environmental capability. Fully suitable for general industrial field measurement and control needs.
- Low cost
The front-end diaphragm of the diffused silicon pressure core used in the diffused silicon pressure transmitter is 316L. It can only measure non-corrosive air pressure, oil pressure, hydraulic pressure, etc. The temperature resistance of the diffused silicon pressure transmitter core is -20-80 ℃. Therefore, it is necessary to measure the pressure of high temperature medium. It needs to add heat sink, extend the pressure guide pipe or add condensation tank cooling method to use.
Extended reading: Best Price Ceramic Pressure Sensor
Silicon Pressure Sensor Specifiactions
|Measuring medium: liquid or gas (compatible with contact material)|
|Diaphragm 316L Stainless Steel (Contact)|
|Process connection 304 stainless steel (contact)|
|Housing 304 stainless steel|
|Seal NBR (contact)|
|Hessman joint ABS engineering plastic|
|Pressure range: 0～35kPa…60MPa|
|Pressure mode: gauge pressure | absolute pressure | sealing pressure|
|Output signal: 4~20m4, RS485 (standard Modbus-RTU protocol)|
|Supply voltage: 12~24VDC|
|Accuracy class: 0.5%FS|
|Working conditions: medium temperature -40~85℃|
|Ambient temperature: -40~85℃|
|Ambient humidity: 0%~95%RH (no condensation and no condensation)|
|Temperature compensation: -10~70℃|
|Seismic performance: 10g(20…2000Hz)|
|Overload capacity: 200% full scale|
|Response frequency: analog signal output ≤ 500Hz, digital signal output ≤ 5Hz|
|Stable performance: ±0.2%FS/year|
|Temperature drift: ±0.02%PS/℃ (within temperature compensation range)|
|Overall weight: 190g|
|Protection level: IP65 Note: The above protection level refers to the level achieved after the electrical connection is complete|
|Power range: current type≤0.02Us(W) digital type≤0.015Us(W) Note: Us=supply voltage|
|Load characteristics: current load≤(Us-7.5)÷0.02(Us=supply voltage)))Q|
Silicon Pressure Sensor Applications
Silicon Pressure Sensor is a kind of pressure transmitter. Mainly used to measure the pressure of gas, liquid and other objects. The parameters are then converted into standard telecom signals.
The application scope of diffusion silicon pressure transmitter mainly has the following:
Matched with throttling device, it provides accurate flow measurement and control.
Measures pressure and level in pipes and tanks.
- Electricity/city gas/other company business
Places such as measurement requiring high stability and high precision.
- Pulp and paper
It is used in places requiring chemical resistance, corrosion resistance, etc.
- Steel/non-ferrous metals/ceramics
It is used for furnace pressure measurement and other places requiring high stability and high precision measurement.
For use where stable measurements are required under strictly controlled (temperature, humidity, etc.) conditions.
It is used in places where stable measurement is required under high-precision conditions such as strict control of temperature and humidity.
Extended reading: Featured Diaphragm Seal Pressure Transmitters
All of our pressure sensors can work with the NEW AMS TERX communicator.
Sino-Inst offers over 20 Silicon Pressure Sensors. A wide variety of Silicon Pressure Sensors options are available to you. Such as free samples, paid samples. Sino-Instrument is a globally recognized manufacturer of Silicon Pressure Sensors, located in China. Sino-Instrument sells through a mature distribution network that reaches all 30 countries worldwide. Silicon Pressure Sensors products are most popular in Europe, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers. With ISO9001, ISO14001 certification.
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