I. High Measurement Precision and Stability

• High Precision:
  • Single crystal silicon has excellent mechanical properties and a linear elastic range, enabling precise conversion of pressure into electrical signals. The measurement accuracy can reach ±0.075%FS or even higher, suitable for scenarios requiring high-precision control (e.g., pharmaceutical equipment, aerospace).
• Good Long-Term Stability:
  • The material has low creep and hysteresis, with minimal performance degradation over long-term use. Drift is typically ≤0.05%FS/year, reducing the frequency of calibration.

II. Strong Environmental Adaptability

• Wide Temperature Range:
  • Can operate stably in -40°C to +125°C environments (some models up to +150°C), with built-in temperature compensation circuits to eliminate errors caused by temperature fluctuations.
• Corrosion and Pressure Resistance:
  • The sensor chip is usually encapsulated in stainless steel (e.g., 316L) or coated with a protective layer (such as PTFE), making it resistant to corrosion from liquids (e.g., acids, alkalis) and suitable for harsh media like seawater or chemical solutions.
• Anti-Vibration and Impact:
  • The structure is rigid, withstanding vibration up to 50g and impact up to 500g, ensuring reliable operation in mechanical equipment or mobile devices.

III. Excellent Electrical Performance

• High Sensitivity and Signal-to-Noise Ratio:
  • The piezoresistive effect of single crystal silicon generates significant resistance changes under pressure, allowing output of strong signals (e.g., 4-20 mA, 0-10 V) with minimal noise interference.
• Wide Measurement Range:
  • Capable of measuring ultra-low pressure (e.g., 0-1 kPa for air pressure) to high pressure (0-100 MPa for hydraulic systems), adaptable to various industrial scenarios.

IV. Compact Structure and Easy Integration

• Miniaturization and Lightweight Design:
  • The chip can be miniaturized to millimeters, enabling compact transmitters that fit into narrow spaces (e.g., medical catheters, aircraft pipelines).
• Diverse Installation Methods:
  • Available in thread-mounted, flange-mounted, or flush-mounted types, compatible with standard industrial interfaces (e.g., G1/2, NPT1/4).

V. Advanced Technology and Intelligent Functions

• MEMS Process Integration:
  • Manufactured using micro-electro-mechanical systems (MEMS) technology, with precise etching of the silicon diaphragm to ensure uniform stress distribution and high consistency.
• Intelligent Compensation and Digital Output:
  • Some models integrate microprocessors for intelligent correction of nonlinear errors and temperature drift, supporting digital signals (e.g., HART, Modbus) for remote configuration and diagnostic functions.

VI. Cost-Effectiveness and Long Service Life

• High Cost Performance:
  • Compared to ceramic or sapphire pressure transmitters, single crystal silicon products offer competitive prices under the same precision, suitable for large-scale industrial applications.
• Long Service Life:
  • With proper use, the service life can exceed 10 years, reducing maintenance and replacement costs.

VII. Application Scenarios

• Industrial Process Control:
  • Pipeline pressure monitoring in petroleum, chemical, and power industries.
• Medical Equipment:
  • Blood pressure measurement, ventilator pressure control.
• Environmental Monitoring:
  • Atmospheric pressure, water level, and hydraulic pressure detection.
• Aerospace and Automotive:
  • Aircraft cabin pressure sensing, automotive engine oil pressure monitoring.

Comparison with Other Pressure Transmitters

Summary