Silicon differential pressure sensor and transducer

Individually adaptable. Highest precision. High overload resistance

Differential pressure measurement products

Link to: Differential pressure sensor USD50B

Differential pressure sensor USD50B

For highly accurate measurements and differential pressure monitoring.

Link to: Differential pressure sensor USD70

Differential pressure sensor USD70

For small measuring ranges with extremely high overload resistance.

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Over 30 years of experience in differential pressure monitoring

Our silicon pressure sensors have a piezoresistive sensor with a welded metal diaphragm; standardized measuring ranges from 0 bar to 40 bar, an exceptionally high overload resistance, and excellent long-term stability due to the use of 316 L stainless steel. Silicon sensors are used in many industries and applications.

Advantages of our pressure sensors

  • Environmental Industry
     Silicon pressure sensors are suitable, for example, for hydrostatic level measurement on pressure-superimposed tanks or flow measurement of wastewater.
  • Level measurement
     For precise level measurement, an appropriate differential pressure transducer is required.
  • Volume measurement
     The volume of various liquids can be determined and controlled utilizing differential pressure measurement.
  • Differential pressure monitoring
     Filters and pumps can be checked for correct function utilizing differential pressure monitoring.
  • Flow measurement
     For continuous control of the volume or mass flow.

Learn more about our customized Sensors & Components

Brochure: Customized
Sensors & Components

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Know-how from the product idea to series production

Whether engineering, including prototype production, the implementation of a zero-defect quality target in series production, or reliable just-in-time delivery: With our services, we accompany you along the entire value chain. Individually and in line with your requirements.

Learn more about our customized differential pressure sensor

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Things to know about the differential pressure measurement method

What is differential pressure?

Differential pressure is the difference between two prevailing pressure values. It is, therefore, the pressure difference between two systems that are measured. It can be used, for example, to determine the hydrostatic level in a vessel or the mass flow through a pipeline.

What is a differential pressure transducer?

A differential pressure transducer measures continuously occurring pressure differences in liquids, vapors or gases. The hydrostatic level in a closed vessel or the mass flow through a pipeline can be calculated from the differential pressure. Our differential pressure sensor forms the basis for the design of a high-quality differential pressure transducer.

What is a differential pressure transmitter?

A transmitter can measure and control different types of pressure (absolute pressure, gauge pressure, differential pressure). Accordingly, a differential pressure transmitter measures the pressure applied to a measuring diaphragm as the difference between two pressure levels. The electrical output signal recorded in this process is finally evaluated.

How does the silicon pressure sensor technology work?

Our differential pressure transducers are based on a piezoresistive silicon sensing element. A filling oil transfers the pressure from a stainless-steel diaphragm to a resistance measuring bridge. High accuracy and reproducibility are possible with the differential pressure measurement with a silicon sensor. Finally, the differential pressure-dependent change in the bridge output voltage is measured and further processed.

How is a silicon pressure sensor constructed?

The structure of a silicon pressure sensor in detail: The main components are the two diaphragms, the centrally located silicon sensor, as well as the oil filling, and a process connection.