The SG-70 wide-temperature piezoresistive pressure sensitive element is an OEM core pressure measuring element isolated by a stainless steel corrugated diaphragm. Adopting an integrated structure design, it features high pressure resistance, superior stability and outstanding reliability, and can maintain stable measuring performance under complex working conditions with high vibration and strong impact.

Equipped with a high-precision and high-stability pressure sensitive chip, the element is fully assembled on automated production lines and tested automatically by computer, ensuring excellent product consistency and measurement accuracy. It supports optional compensation resistors to realize precise zero-point calibration and temperature compensation, which eliminates measurement errors under wide-temperature working conditions and guarantees accurate measurement across the full temperature range.

Featuring a compact structure with a core dimension of only 12.6mm, this product boasts high adaptability and can be easily integrated into downhole pressure gauges. Additionally, customizable sealing methods are available to meet diverse sealing protection requirements for complex downhole working conditions, enabling extensive application scenarios.

Key Features

- Pressure Measurement Range: 0kPa～100kPa…70MPa with a wide range coverage, suitable for pressure detection in diverse application scenarios

- Operating Temperature Range: -55℃～150℃, featuring excellent wide-temperature adaptability for extreme high and low temperature working conditions

- Power Supply Mode: Supports dual power supply modes of constant voltage and constant current, compatible with various circuit schemes

- Structural Design: Adopts an isolated structure with strong medium compatibility, suitable for the measurement of various fluid media

- Dimension: Standard OEM structure of Φ12.6mm, compact size for easy integration and assembly

- Material: Made of full 316L stainless steel with outstanding corrosion and wear resistance, applicable to complex working environments

- Environmental Adaptability: Excellent vibration and shock resistance, ensuring stable performance under harsh working conditions

- Long-term Stability: Delivers superior long-term stability to ensure continuous and accurate long-term measurement

- Reliability: Complies with military-grade reliability requirements for high quality and durability

Typical Applications

Aerospace & Military

Aviation and aerospace instruments, aviation & marine testing equipment, military refrigeration and air conditioning systems

Pressure Test & Control Equipment

General pressure gauges, pressure calibration instruments, hydraulic systems and pressure switches

Medium Pressure Monitoring

Liquid level measurement, pressure measurement of gas and liquid media

Specifications:

Overall dimension

Electrical Connection

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