Liaoning Yifang Wisdom Technology Group Co., Ltd. is one of the leading manufacturers and suppliers of diffused silicon pressure transmitter in China. We are committed to offering high quality customized products for global clients. Please feel free to wholesale the newest diffused silicon pressure transmitter in stock here from our factory. For quotation, contact us now.
Diffused Silicon Pressure Transmitter

Basic Information
Traditional industrial pressure detection solutions have prominent technical bottlenecks in long-term process operation. Ordinary ceramic pressure sensors suffer from poor linearity, large temperature drift and low resolution, failing to meet high-precision pressure control requirements. Conventional strain gauge transmitters feature complex structures, severe signal attenuation and poor repeatability, requiring frequent calibration and maintenance. Many low-cost pressure transmitters lack effective temperature compensation, resulting in data deviation under fluctuating working conditions. In scenarios of instantaneous pressure impact, overload and medium corrosion, ordinary sensors are prone to diaphragm deformation, core damage and permanent failure. The Diffused Silicon Pressure Transmitter thoroughly solves the above industrial pain points. Adopting advanced monocrystalline silicon diffusion process, it forms a high-stability Wheatstone bridge on the silicon chip surface. When medium pressure acts on the 316L stainless steel isolation diaphragm, pressure is evenly transmitted to the silicon sensing core through internal silicone oil, triggering precise resistance changes of the bridge circuit. The built-in high-performance signal processing module amplifies, linearizes and dynamically compensates the original micro-signal, finally converting it into standard industrial output signals. Compared with traditional pressure sensors, the diffused silicon core features higher sensitivity, lower hysteresis and creep error, and stronger anti-overload capability. With full-range temperature drift correction and industrial EMC anti-interference design, it maintains consistent accuracy in variable temperature and complex electromagnetic environments, becoming a universal high-precision pressure measuring core for modern industrial automation systems.
Features And Optional Customization
This industrial diffused silicon pressure transmitter supports diversified personalized customization for chemical, hydraulic, water conservancy, HVAC and mechanical pressure monitoring projects. High-purity diffused silicon sensing core ensures ultra-high sensitivity, excellent linearity and minimal repeat error, supporting precision measurement of tiny pressure changes. Intelligent full-temperature compensation algorithm automatically corrects zero drift and sensitivity deviation from -40℃ to 125℃, achieving stable output across full working temperature range. Integrated isolated diaphragm structure effectively resists instantaneous pressure impact and excessive overload, avoiding core damage. All-metal fully sealed waterproof and dustproof housing adapts to harsh industrial environments with vibration, humidity and dust. Low hysteresis and low creep performance guarantees long-term stability within 0.1%FS/year, greatly reducing calibration frequency. Dual signal output options and universal industrial voltage design realize seamless docking with PLC, DCS and data acquisition systems. According to project demands, we can customize pressure measuring range, thread specification, diaphragm material, digital display function, signal output mode and explosion-proof grade to meet refined pressure monitoring requirements of different media and working conditions.

Technical Specification
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Core Performance Parameters |
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Working Principle |
Diffused silicon piezoresistive effect, Wheatstone bridge pressure-electric conversion |
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Accuracy Grade |
Optional 0.1%FS / 0.2%FS / 0.5%FS high precision |
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Measuring Range |
Wide coverage from negative pressure to 60MPa, customizable full scale |
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Core Advantage |
High sensitivity, low drift, strong overload resistance, full temperature compensation |
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Signal Output |
Standard 4-20mA analog / RS485 Modbus RTU digital signal optional |
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Working Voltage |
Universal 12-36VDC industrial loop power supply |
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Application Value |
Long-term stable precision pressure monitoring, low maintenance and high cost performance |
Material & Industrial Design
- Diaphragm Material: Standard 316L stainless steel, Hastelloy anti-corrosion material optional
- Core Components: Imported diffused silicon sensing chip, high-stability signal processing module
- Structural Design: Fully sealed integrated structure, anti-vibration and anti-shock industrial design
- Quality Inspection: Full-scale pressure calibration, temperature cycle test and long-term stability aging test before delivery
Application Area
Suitable for industrial pipeline fluid pressure monitoring, hydraulic and pneumatic system detection, chemical process pressure control, water supply and pump station supervision, boiler and pressure vessel testing, environmental protection equipment monitoring and other industrial precision pressure measurement scenarios.
Available Design
- Custom negative pressure / low pressure / high pressure range for diverse working condition matching
- Upgrade anti-corrosion diaphragm material for acid, alkali and corrosive medium environments
- Optional on-site digital display for real-time local pressure data viewing
- Select 4-20mA or RS485 output mode and upgrade explosion-proof version for hazardous sites
Similar Product Recommendation
For sealed tank liquid pressure level measurement, please select Differential Pressure Type Level Transmitter. For water level hydrostatic monitoring, choose Submersible Level Transmitter. For industrial temperature detection, refer to Integrated Temperature Transmitter.

Why Choose Us
Different from traditional ceramic and strain gauge pressure sensors with large drift and poor stability, our Diffused Silicon Pressure Transmitter adopts high-grade diffused silicon piezoresistive core, featuring higher resolution, better linearity and extremely low hysteresis error. Professional silicone oil pressure transmission and isolated diaphragm structure effectively disperse pressure impact, realizing strong overload resistance and preventing long-term fatigue damage. Full-temperature dynamic compensation technology eliminates ambient temperature interference, ensuring accurate and reliable data in seasonal and working condition fluctuations. Long-term stability up to 0.1%FS per year minimizes routine maintenance and calibration costs. With versatile customization and industrial-grade environmental adaptability, it is the most reliable and cost-effective universal pressure measurement solution for industrial automatic control systems.
Customer Service
We provide complete product datasheets, official calibration reports and installation dimension drawings. Our technical team supports pre-sales range and structure customization, on-site installation guidance and long-term after-sales technical support, ensuring stable and accurate industrial pressure monitoring performance.

FAQ
Q: What are the advantages of diffused silicon pressure transmitter over ordinary sensors?
A: It features higher sensitivity, better linearity, lower temperature drift and stronger overload resistance. It solves the problems of poor stability and large measurement error of traditional pressure sensors, suitable for high-precision industrial scenarios.
Q: Can it work stably in variable temperature environments?
A: Yes. Built-in full-range intelligent temperature compensation algorithm automatically corrects data deviation caused by temperature changes, maintaining consistent precision in -40℃~125℃ wide temperature range.
Q: Does it support anti-overload and anti-pressure impact?
A: Absolutely. The isolated stainless steel diaphragm and internal buffer structure effectively resist instantaneous pressure impact and excessive overload, protecting the sensing core and extending service life.
Q: What industrial control systems is it compatible with?
A: It supports standard 4-20mA analog and RS485 Modbus digital output, fully compatible with PLC, DCS, industrial acquisition modules and cloud monitoring platforms for seamless system integration.
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