Strain Gauge Pressure Sensor

Overview of Strain Gauge Pressure Sensor

The Strain Gauge Pressure Sensor is a robust, high-cycle pressure measuring instrument built to handle severe pressure spikes and dynamic fatigue. It operates by bonding high-stability strain gauges directly onto a 17-4 PH Stainless Steel sensing diaphragm. When media pressure deflects the diaphragm, the strain gauges experience mechanical displacement, altering their electrical resistance. This change is calculated via an internal Wheatstone bridge network and converted into a highly stable electrical output. This technology excels in applications subject to rapid pressure pulsations, water hammer, and harsh environmental cycling where traditional thin-film or piezoresistive sensors might prematurely fatigue.

Features of Strain Gauge Pressure Sensor

Ultra-High Fatigue Life: Specifically optimized to endure more than 100 million full-scale pressure cycles without zero-point degradation or structural failure.

Monolithic 17-4 PH Stainless Steel: The entire wetted pressure port and diaphragm assembly are machined from a single piece of high-strength alloy, ensuring maximum chemical and mechanical integrity.

Extreme Overpressure Safeguards: Features a proof pressure rating of 4 times the full scale with minimal zero shift (<1%), protecting the system against unexpected line surges.

Massive Burst Protection: Offers heavy-duty burst ratings up to 35 times full scale on lower pressure ranges to ensure operator and equipment safety.

Rapid Sub-Millisecond Response: A fast response time of 0.5 ms allows the sensor to capture transient pressure anomalies and high-speed hydraulic spikes accurately.

Broad Thermal Performance: Operates across a wide temperature window from -40F up to +260F (-40C to +125C) depending on the electrical termination selected.

Applications of Strain Gauge Pressure Sensor

Heavy Hydraulic Machinery: Monitoring dynamic pressure changes in injection molding machines, hydraulic presses, and mobile construction equipment.

Pump and Compressor Controls: Detecting high-frequency pressure ripples and protecting lines against water hammer or sudden unloading spikes.

Industrial Process Automation: Serving as a rugged feedback loop for high-pressure gas and liquid distribution networks up to 400 bar.

Test Benches and R&D: Providing high-speed data acquisition for pneumatic and hydraulic component validation.

Energy and Utilities: Regulating fluid pressures in power generation auxiliary systems and high-pressure water treatment lines.

Price of Strain Gauge Pressure Sensor

The pricing for this Strain Gauge Pressure Sensor is determined by the selected full-scale pressure range, the required electrical termination code, and the process port configuration. Models ordered with high-temperature electrical configurations (supporting up to +125C) or specific tight-tolerance accuracy calibrations may vary in cost. For volume discounts or a tailored quotation corresponding to your technical ordering codes, please contact the ZINACA Instruments technical sales division.

OEM Service

ZINACA offers complete OEM customization for high-fatigue pressure sensors:

Customized Ports and Fittings: Machining the 17-4 PH wetted interface to match specific international thread standards or flush-mount requirements.

Electrical Termination Matching: Supplying specific wiring harnesses, integral cables, or standardized industrial plugs (Aviation plugs, Hirschmann, M12) configured to your system layout.

Factory Labeling: Laser marking of your specific corporate branding, unique part numbers, and calibration tracking matrixes.

Technical Specifications