High Precision Silicon Vibration Static Pressure Sensor

The SG-P40 Series is a high-precision MEMS pressure sensor capable of both static and dynamic pressure measurement, adopting silicon resonant (MEMS-based) pressure sensing technology. When pressure is applied to the silicon diaphragm, it alters the stress and strain of the resonant beams, causing a measurable frequency shift - a direct and highly stable indicator of static pressure. The sensor realizes digital output through quantization compensation of its analog signals, and offers a variety of output forms to choose from, along with pressure gain calibration, pressure offset calibration, and temperature offset calibration functions.

Compared with traditional piezoresistive or capacitive sensors, the SG-P40 Series, as a resonant-type sensor, boasts outstanding advantages: higher accuracy and long-term stability (frequency output is determined by mechanical resonance rather than electrical bridge drift); higher resolution and linearity (even tiny pressure variations induce measurable frequency changes); wide environmental adaptability (temperature-compensated MEMS design improves reliability under industrial operating conditions); ultra-compact structure that is easy to embed (ideal for pressure modules, instruments, and portable devices); and digital-ready signal output (frequency output enables direct interfacing with PLC/DCS/IIoT systems).

The SG-P40 Series is engineered for static pressure measurement and advanced intelligent industrial monitoring systems, and is particularly suitable for application in UAV atmospheric data measurement systems.

• High-Q resonant structure with frequency output (digital signal output, determined by mechanical resonance rather than electrical bridge drift)

• Excellent performance: higher accuracy (full temperature and full range comprehensive accuracy up to ±0.01%F.S.), long-term stability, high resolution, and outstanding linearity (even tiny pressure variations induce measurable frequency changes)

• MEMS manufacturing ensures batch consistency and cost-efficiency

• Built-in thermal compensation for stable results across a wide temperature range (up to -55℃~85℃), enhancing environmental adaptability and reliability under industrial operating conditions

• Digital-friendly output, compatible with PLC/DCS/SCADA/IIoT systems for direct interfacing

• Compact size, easy to package and embed, ideal for OEM modules, pressure modules, instruments, and portable devices

SG-P40 is engineered for both static pressure measurement and advanced intelligent industrial monitoring systems.

SG 40

SG41

• Aviation / Meteorology / Environmental measurement: Ideal for atmospheric data collection in aviation systems, meteorological observation stations, and environmental monitoring networks, where its high accuracy and stable performance ensure reliable capture of subtle static pressure changes in complex atmospheric environments.

• Industrial process control - chemical, petrochemical, pharmaceutical, energy: Well-suited for static pressure monitoring in key links of industrial production processes, such as reaction vessels, storage tanks, and pipeline systems in chemical, petrochemical, and pharmaceutical industries, as well as energy production and transmission equipment. It helps realize precise process control, ensure production safety, and improve product quality stability.

• Precision laboratory instrumentation & calibration equipment: Compatible with high-precision laboratory testing instruments and pressure calibration equipment, its excellent linearity and repeatability meet the strict accuracy requirements of scientific research experiments and instrument calibration work, providing reliable data support for experimental analysis and equipment verification.

• Hydraulic systems / Oil & gas / Deep-well & ocean pressure monitoring: Applicable to static pressure detection in hydraulic system pipelines, oil and gas exploration and exploitation equipment, deep-well drilling tools, and marine environmental monitoring devices. Its strong environmental adaptability (resistant to high temperature, humidity, and corrosion) and stable long-term performance ensure accurate measurement in harsh working conditions such as deep wells and marine environments.

• OEM embedded sensing modules for automation & measurement systems: With a compact structure and easy integration design, it is specially designed for OEM embedded applications in automation control systems and intelligent measurement equipment, enabling equipment manufacturers to quickly integrate high-precision static pressure sensing functions, reducing R&D and production costs.

Why Choose Our SG-P40 Sensor?

• Strict quality control & consistent performance across batches: We implement a full-process quality management system covering raw material inspection, MEMS chip fabrication, assembly, calibration, and final shipment. Each sensor undergoes rigorous testing (including environmental adaptability, performance stability, and reliability verification) to ensure that every unit in different production batches maintains consistent precision and operational performance, effectively avoiding quality fluctuations that may affect customer system operation.

• Customizable range, interface, output format & package options: To meet the diverse application needs of different industries and scenarios, we offer comprehensive customization services. Customers can flexibly customize pressure measurement ranges (from low to high pressure), electrical interfaces (such as CAN, RS-232, RS-485), output formats (digital frequency signals, standardized digital/bus signals), and package structures (miniature embedded packages, industrial standard packages) according to their specific equipment integration requirements and working environment constraints.

• Fast delivery for standard models; stable lead time for OEM projects: For standard configuration models, we maintain sufficient inventory reserves to realize rapid response and delivery, helping customers shorten project deployment cycles and reduce inventory pressure. For OEM customization projects, we have a mature production scheduling system and professional technical team, which can provide a clear and stable delivery cycle based on project scale and customization complexity, ensuring that customers' mass production plans are carried out smoothly.

• Long-term supply capability & technical support for industrial clients: We have established a complete industrial chain supply system, with stable supply capacity of core components and raw materials, to ensure long-term and continuous product supply for industrial customers, avoiding production disruptions caused by supply shortages. At the same time, we provide professional technical support services, including pre-sales solution consultation, in-sales installation guidance, and after-sales fault diagnosis and maintenance, to solve technical problems encountered by customers in the entire product life cycle.

FAQ

Q1. What is the accuracy level?

Typical accuracy reaches ±0.01–0.02%FS, depending on measurement range and calibration setup.

Q2. What is the output type?

Frequency output, easy to interface with PLC, DCS, and digital acquisition systems.

Q3. Temperature stability performance?

Designed with thermal compensation and stable operation from –40°C to +85°C.

Q4. Do you offer custom designs?

Yes - custom ranges, interfaces, electrical output, packaging, and module integration.

Q5. Suitable for large-volume OEM procurement?

We support mass production with strict quality traceability and calibration documentation.

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