Definition
A pressure sensor measures the fluid or gas pressure at a specific point in a system (using a diaphragm, strain gauge, or similar sensing element that deforms proportionally to pressure) and converts that measurement into an electrical signal a controller or monitoring system reads, supporting both process control and condition assessment such as detecting a developing blockage or leak.
Key facts
- Measures pressure specifically, distinct from other sensor types measuring temperature, position, or presence.
- Typically uses a diaphragm or strain-gauge element whose deformation under pressure is converted to an electrical signal.
- Used both for real-time process control and for condition assessment (an unexpected pressure change can indicate a blockage, leak, or pump problem).
- Range and accuracy specification must match the application: an oversized-range sensor loses resolution at typical operating pressures.
How does Pressure sensor work or appear?
A pressure sensor detects the force per unit area exerted by a fluid or gas at its measurement point, typically through a diaphragm or similar element that deforms proportionally to pressure, converting that physical deformation into an electrical signal that scales with the actual pressure value.
What should technicians inspect for Pressure sensor?
Beyond direct process control (maintaining a required pressure setpoint), pressure sensor readings are commonly used diagnostically (an unexpected pressure drop can indicate a leak or pump problem, while an unexpected rise can indicate a blockage) making pressure trend data a useful condition-monitoring input.
FAQ
Frequently asked questions
Which pressure quantity does a pressure sensor capture?
A pressure sensor captures the fluid or gas pressure at a specific point in a system, converting it into an electrical signal used for both process control and diagnostic condition assessment.
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